root / lib / masterd / instance.py @ acd65a16
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1 | 033a1d00 | Michael Hanselmann | #
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2 | 033a1d00 | Michael Hanselmann | #
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3 | 033a1d00 | Michael Hanselmann | |
4 | 033a1d00 | Michael Hanselmann | # Copyright (C) 2010 Google Inc.
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5 | 033a1d00 | Michael Hanselmann | #
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6 | 033a1d00 | Michael Hanselmann | # This program is free software; you can redistribute it and/or modify
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7 | 033a1d00 | Michael Hanselmann | # it under the terms of the GNU General Public License as published by
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8 | 033a1d00 | Michael Hanselmann | # the Free Software Foundation; either version 2 of the License, or
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9 | 033a1d00 | Michael Hanselmann | # (at your option) any later version.
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10 | 033a1d00 | Michael Hanselmann | #
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11 | 033a1d00 | Michael Hanselmann | # This program is distributed in the hope that it will be useful, but
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12 | 033a1d00 | Michael Hanselmann | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 033a1d00 | Michael Hanselmann | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | 033a1d00 | Michael Hanselmann | # General Public License for more details.
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15 | 033a1d00 | Michael Hanselmann | #
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16 | 033a1d00 | Michael Hanselmann | # You should have received a copy of the GNU General Public License
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17 | 033a1d00 | Michael Hanselmann | # along with this program; if not, write to the Free Software
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18 | 033a1d00 | Michael Hanselmann | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | 033a1d00 | Michael Hanselmann | # 02110-1301, USA.
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20 | 033a1d00 | Michael Hanselmann | |
21 | 033a1d00 | Michael Hanselmann | |
22 | 033a1d00 | Michael Hanselmann | """Instance-related functions and classes for masterd.
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23 | 033a1d00 | Michael Hanselmann |
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24 | 033a1d00 | Michael Hanselmann | """
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25 | 033a1d00 | Michael Hanselmann | |
26 | 033a1d00 | Michael Hanselmann | import logging |
27 | 033a1d00 | Michael Hanselmann | import time |
28 | 4a96f1d1 | Michael Hanselmann | import OpenSSL |
29 | 033a1d00 | Michael Hanselmann | |
30 | 033a1d00 | Michael Hanselmann | from ganeti import constants |
31 | 033a1d00 | Michael Hanselmann | from ganeti import errors |
32 | 033a1d00 | Michael Hanselmann | from ganeti import compat |
33 | 387794f8 | Michael Hanselmann | from ganeti import utils |
34 | 387794f8 | Michael Hanselmann | from ganeti import objects |
35 | 033a1d00 | Michael Hanselmann | |
36 | 033a1d00 | Michael Hanselmann | |
37 | 033a1d00 | Michael Hanselmann | class _ImportExportError(Exception): |
38 | 033a1d00 | Michael Hanselmann | """Local exception to report import/export errors.
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39 | 033a1d00 | Michael Hanselmann |
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40 | 033a1d00 | Michael Hanselmann | """
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41 | 033a1d00 | Michael Hanselmann | |
42 | 033a1d00 | Michael Hanselmann | |
43 | 033a1d00 | Michael Hanselmann | class ImportExportTimeouts(object): |
44 | 033a1d00 | Michael Hanselmann | #: Time until daemon starts writing status file
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45 | 033a1d00 | Michael Hanselmann | DEFAULT_READY_TIMEOUT = 10
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46 | 033a1d00 | Michael Hanselmann | |
47 | 033a1d00 | Michael Hanselmann | #: Length of time until errors cause hard failure
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48 | 033a1d00 | Michael Hanselmann | DEFAULT_ERROR_TIMEOUT = 10
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49 | 033a1d00 | Michael Hanselmann | |
50 | 033a1d00 | Michael Hanselmann | #: Time after which daemon must be listening
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51 | 033a1d00 | Michael Hanselmann | DEFAULT_LISTEN_TIMEOUT = 10
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52 | 033a1d00 | Michael Hanselmann | |
53 | 1a2e7fe9 | Michael Hanselmann | #: Progress update interval
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54 | 1a2e7fe9 | Michael Hanselmann | DEFAULT_PROGRESS_INTERVAL = 60
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55 | 1a2e7fe9 | Michael Hanselmann | |
56 | 033a1d00 | Michael Hanselmann | __slots__ = [ |
57 | 033a1d00 | Michael Hanselmann | "error",
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58 | 033a1d00 | Michael Hanselmann | "ready",
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59 | 033a1d00 | Michael Hanselmann | "listen",
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60 | 033a1d00 | Michael Hanselmann | "connect",
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61 | 1a2e7fe9 | Michael Hanselmann | "progress",
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62 | 033a1d00 | Michael Hanselmann | ] |
63 | 033a1d00 | Michael Hanselmann | |
64 | 033a1d00 | Michael Hanselmann | def __init__(self, connect, |
65 | 033a1d00 | Michael Hanselmann | listen=DEFAULT_LISTEN_TIMEOUT, |
66 | 033a1d00 | Michael Hanselmann | error=DEFAULT_ERROR_TIMEOUT, |
67 | 1a2e7fe9 | Michael Hanselmann | ready=DEFAULT_READY_TIMEOUT, |
68 | 1a2e7fe9 | Michael Hanselmann | progress=DEFAULT_PROGRESS_INTERVAL): |
69 | 033a1d00 | Michael Hanselmann | """Initializes this class.
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70 | 033a1d00 | Michael Hanselmann |
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71 | 033a1d00 | Michael Hanselmann | @type connect: number
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72 | 033a1d00 | Michael Hanselmann | @param connect: Timeout for establishing connection
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73 | 033a1d00 | Michael Hanselmann | @type listen: number
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74 | 033a1d00 | Michael Hanselmann | @param listen: Timeout for starting to listen for connections
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75 | 033a1d00 | Michael Hanselmann | @type error: number
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76 | 033a1d00 | Michael Hanselmann | @param error: Length of time until errors cause hard failure
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77 | 033a1d00 | Michael Hanselmann | @type ready: number
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78 | 033a1d00 | Michael Hanselmann | @param ready: Timeout for daemon to become ready
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79 | 1a2e7fe9 | Michael Hanselmann | @type progress: number
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80 | 1a2e7fe9 | Michael Hanselmann | @param progress: Progress update interval
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81 | 033a1d00 | Michael Hanselmann |
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82 | 033a1d00 | Michael Hanselmann | """
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83 | 033a1d00 | Michael Hanselmann | self.error = error
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84 | 033a1d00 | Michael Hanselmann | self.ready = ready
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85 | 033a1d00 | Michael Hanselmann | self.listen = listen
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86 | 033a1d00 | Michael Hanselmann | self.connect = connect
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87 | 1a2e7fe9 | Michael Hanselmann | self.progress = progress
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88 | 033a1d00 | Michael Hanselmann | |
89 | 033a1d00 | Michael Hanselmann | |
90 | 033a1d00 | Michael Hanselmann | class ImportExportCbBase(object): |
91 | 033a1d00 | Michael Hanselmann | """Callbacks for disk import/export.
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92 | 033a1d00 | Michael Hanselmann |
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93 | 033a1d00 | Michael Hanselmann | """
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94 | 033a1d00 | Michael Hanselmann | def ReportListening(self, ie, private): |
95 | 033a1d00 | Michael Hanselmann | """Called when daemon started listening.
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96 | 033a1d00 | Michael Hanselmann |
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97 | 033a1d00 | Michael Hanselmann | @type ie: Subclass of L{_DiskImportExportBase}
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98 | 033a1d00 | Michael Hanselmann | @param ie: Import/export object
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99 | 033a1d00 | Michael Hanselmann | @param private: Private data passed to import/export object
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100 | 033a1d00 | Michael Hanselmann |
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101 | 033a1d00 | Michael Hanselmann | """
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102 | 033a1d00 | Michael Hanselmann | |
103 | 033a1d00 | Michael Hanselmann | def ReportConnected(self, ie, private): |
104 | 033a1d00 | Michael Hanselmann | """Called when a connection has been established.
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105 | 033a1d00 | Michael Hanselmann |
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106 | 033a1d00 | Michael Hanselmann | @type ie: Subclass of L{_DiskImportExportBase}
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107 | 033a1d00 | Michael Hanselmann | @param ie: Import/export object
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108 | 033a1d00 | Michael Hanselmann | @param private: Private data passed to import/export object
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109 | 033a1d00 | Michael Hanselmann |
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110 | 033a1d00 | Michael Hanselmann | """
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111 | 033a1d00 | Michael Hanselmann | |
112 | 1a2e7fe9 | Michael Hanselmann | def ReportProgress(self, ie, private): |
113 | 1a2e7fe9 | Michael Hanselmann | """Called when new progress information should be reported.
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114 | 1a2e7fe9 | Michael Hanselmann |
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115 | 1a2e7fe9 | Michael Hanselmann | @type ie: Subclass of L{_DiskImportExportBase}
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116 | 1a2e7fe9 | Michael Hanselmann | @param ie: Import/export object
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117 | 1a2e7fe9 | Michael Hanselmann | @param private: Private data passed to import/export object
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118 | 1a2e7fe9 | Michael Hanselmann |
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119 | 1a2e7fe9 | Michael Hanselmann | """
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120 | 1a2e7fe9 | Michael Hanselmann | |
121 | 033a1d00 | Michael Hanselmann | def ReportFinished(self, ie, private): |
122 | 033a1d00 | Michael Hanselmann | """Called when a transfer has finished.
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123 | 033a1d00 | Michael Hanselmann |
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124 | 033a1d00 | Michael Hanselmann | @type ie: Subclass of L{_DiskImportExportBase}
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125 | 033a1d00 | Michael Hanselmann | @param ie: Import/export object
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126 | 033a1d00 | Michael Hanselmann | @param private: Private data passed to import/export object
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127 | 033a1d00 | Michael Hanselmann |
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128 | 033a1d00 | Michael Hanselmann | """
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129 | 033a1d00 | Michael Hanselmann | |
130 | 033a1d00 | Michael Hanselmann | |
131 | 033a1d00 | Michael Hanselmann | def _TimeoutExpired(epoch, timeout, _time_fn=time.time): |
132 | 033a1d00 | Michael Hanselmann | """Checks whether a timeout has expired.
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133 | 033a1d00 | Michael Hanselmann |
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134 | 033a1d00 | Michael Hanselmann | """
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135 | 033a1d00 | Michael Hanselmann | return _time_fn() > (epoch + timeout)
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136 | 033a1d00 | Michael Hanselmann | |
137 | 033a1d00 | Michael Hanselmann | |
138 | 033a1d00 | Michael Hanselmann | class _DiskImportExportBase(object): |
139 | 033a1d00 | Michael Hanselmann | MODE_TEXT = None
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140 | 033a1d00 | Michael Hanselmann | |
141 | eb630f50 | Michael Hanselmann | def __init__(self, lu, node_name, opts, |
142 | 033a1d00 | Michael Hanselmann | instance, timeouts, cbs, private=None):
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143 | 033a1d00 | Michael Hanselmann | """Initializes this class.
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144 | 033a1d00 | Michael Hanselmann |
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145 | 033a1d00 | Michael Hanselmann | @param lu: Logical unit instance
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146 | 033a1d00 | Michael Hanselmann | @type node_name: string
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147 | 033a1d00 | Michael Hanselmann | @param node_name: Node name for import
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148 | eb630f50 | Michael Hanselmann | @type opts: L{objects.ImportExportOptions}
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149 | eb630f50 | Michael Hanselmann | @param opts: Import/export daemon options
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150 | 033a1d00 | Michael Hanselmann | @type instance: L{objects.Instance}
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151 | 033a1d00 | Michael Hanselmann | @param instance: Instance object
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152 | 033a1d00 | Michael Hanselmann | @type timeouts: L{ImportExportTimeouts}
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153 | 033a1d00 | Michael Hanselmann | @param timeouts: Timeouts for this import
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154 | 033a1d00 | Michael Hanselmann | @type cbs: L{ImportExportCbBase}
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155 | 033a1d00 | Michael Hanselmann | @param cbs: Callbacks
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156 | 033a1d00 | Michael Hanselmann | @param private: Private data for callback functions
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157 | 033a1d00 | Michael Hanselmann |
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158 | 033a1d00 | Michael Hanselmann | """
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159 | 033a1d00 | Michael Hanselmann | assert self.MODE_TEXT |
160 | 033a1d00 | Michael Hanselmann | |
161 | 033a1d00 | Michael Hanselmann | self._lu = lu
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162 | 033a1d00 | Michael Hanselmann | self.node_name = node_name
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163 | eb630f50 | Michael Hanselmann | self._opts = opts
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164 | 033a1d00 | Michael Hanselmann | self._instance = instance
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165 | 033a1d00 | Michael Hanselmann | self._timeouts = timeouts
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166 | 033a1d00 | Michael Hanselmann | self._cbs = cbs
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167 | 033a1d00 | Michael Hanselmann | self._private = private
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168 | 033a1d00 | Michael Hanselmann | |
169 | 033a1d00 | Michael Hanselmann | # Parent loop
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170 | 033a1d00 | Michael Hanselmann | self._loop = None |
171 | 033a1d00 | Michael Hanselmann | |
172 | 033a1d00 | Michael Hanselmann | # Timestamps
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173 | 033a1d00 | Michael Hanselmann | self._ts_begin = None |
174 | 033a1d00 | Michael Hanselmann | self._ts_connected = None |
175 | 033a1d00 | Michael Hanselmann | self._ts_finished = None |
176 | 033a1d00 | Michael Hanselmann | self._ts_cleanup = None |
177 | 1a2e7fe9 | Michael Hanselmann | self._ts_last_progress = None |
178 | 033a1d00 | Michael Hanselmann | self._ts_last_error = None |
179 | 033a1d00 | Michael Hanselmann | |
180 | 033a1d00 | Michael Hanselmann | # Transfer status
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181 | 033a1d00 | Michael Hanselmann | self.success = None |
182 | 033a1d00 | Michael Hanselmann | self.final_message = None |
183 | 033a1d00 | Michael Hanselmann | |
184 | 033a1d00 | Michael Hanselmann | # Daemon status
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185 | 033a1d00 | Michael Hanselmann | self._daemon_name = None |
186 | 033a1d00 | Michael Hanselmann | self._daemon = None |
187 | 033a1d00 | Michael Hanselmann | |
188 | 033a1d00 | Michael Hanselmann | @property
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189 | 033a1d00 | Michael Hanselmann | def recent_output(self): |
190 | 033a1d00 | Michael Hanselmann | """Returns the most recent output from the daemon.
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191 | 033a1d00 | Michael Hanselmann |
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192 | 033a1d00 | Michael Hanselmann | """
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193 | 033a1d00 | Michael Hanselmann | if self._daemon: |
194 | 033a1d00 | Michael Hanselmann | return self._daemon.recent_output |
195 | 033a1d00 | Michael Hanselmann | |
196 | 033a1d00 | Michael Hanselmann | return None |
197 | 033a1d00 | Michael Hanselmann | |
198 | 033a1d00 | Michael Hanselmann | @property
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199 | 1a2e7fe9 | Michael Hanselmann | def progress(self): |
200 | 1a2e7fe9 | Michael Hanselmann | """Returns transfer progress information.
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201 | 1a2e7fe9 | Michael Hanselmann |
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202 | 1a2e7fe9 | Michael Hanselmann | """
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203 | 1a2e7fe9 | Michael Hanselmann | if not self._daemon: |
204 | 1a2e7fe9 | Michael Hanselmann | return None |
205 | 1a2e7fe9 | Michael Hanselmann | |
206 | 1a2e7fe9 | Michael Hanselmann | return (self._daemon.progress_mbytes, |
207 | 1a2e7fe9 | Michael Hanselmann | self._daemon.progress_throughput,
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208 | 1a2e7fe9 | Michael Hanselmann | self._daemon.progress_percent,
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209 | 1a2e7fe9 | Michael Hanselmann | self._daemon.progress_eta)
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210 | 1a2e7fe9 | Michael Hanselmann | |
211 | 1a2e7fe9 | Michael Hanselmann | @property
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212 | 033a1d00 | Michael Hanselmann | def active(self): |
213 | 033a1d00 | Michael Hanselmann | """Determines whether this transport is still active.
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214 | 033a1d00 | Michael Hanselmann |
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215 | 033a1d00 | Michael Hanselmann | """
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216 | 033a1d00 | Michael Hanselmann | return self.success is None |
217 | 033a1d00 | Michael Hanselmann | |
218 | 033a1d00 | Michael Hanselmann | @property
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219 | 033a1d00 | Michael Hanselmann | def loop(self): |
220 | 033a1d00 | Michael Hanselmann | """Returns parent loop.
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221 | 033a1d00 | Michael Hanselmann |
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222 | 033a1d00 | Michael Hanselmann | @rtype: L{ImportExportLoop}
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223 | 033a1d00 | Michael Hanselmann |
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224 | 033a1d00 | Michael Hanselmann | """
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225 | 033a1d00 | Michael Hanselmann | return self._loop |
226 | 033a1d00 | Michael Hanselmann | |
227 | 033a1d00 | Michael Hanselmann | def SetLoop(self, loop): |
228 | 033a1d00 | Michael Hanselmann | """Sets the parent loop.
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229 | 033a1d00 | Michael Hanselmann |
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230 | 033a1d00 | Michael Hanselmann | @type loop: L{ImportExportLoop}
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231 | 033a1d00 | Michael Hanselmann |
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232 | 033a1d00 | Michael Hanselmann | """
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233 | 033a1d00 | Michael Hanselmann | if self._loop: |
234 | 033a1d00 | Michael Hanselmann | raise errors.ProgrammerError("Loop can only be set once") |
235 | 033a1d00 | Michael Hanselmann | |
236 | 033a1d00 | Michael Hanselmann | self._loop = loop
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237 | 033a1d00 | Michael Hanselmann | |
238 | 033a1d00 | Michael Hanselmann | def _StartDaemon(self): |
239 | 033a1d00 | Michael Hanselmann | """Starts the import/export daemon.
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240 | 033a1d00 | Michael Hanselmann |
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241 | 033a1d00 | Michael Hanselmann | """
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242 | 033a1d00 | Michael Hanselmann | raise NotImplementedError() |
243 | 033a1d00 | Michael Hanselmann | |
244 | 033a1d00 | Michael Hanselmann | def CheckDaemon(self): |
245 | 033a1d00 | Michael Hanselmann | """Checks whether daemon has been started and if not, starts it.
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246 | 033a1d00 | Michael Hanselmann |
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247 | 033a1d00 | Michael Hanselmann | @rtype: string
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248 | 033a1d00 | Michael Hanselmann | @return: Daemon name
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249 | 033a1d00 | Michael Hanselmann |
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250 | 033a1d00 | Michael Hanselmann | """
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251 | 033a1d00 | Michael Hanselmann | assert self._ts_cleanup is None |
252 | 033a1d00 | Michael Hanselmann | |
253 | 033a1d00 | Michael Hanselmann | if self._daemon_name is None: |
254 | 033a1d00 | Michael Hanselmann | assert self._ts_begin is None |
255 | 033a1d00 | Michael Hanselmann | |
256 | 033a1d00 | Michael Hanselmann | result = self._StartDaemon()
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257 | 033a1d00 | Michael Hanselmann | if result.fail_msg:
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258 | 033a1d00 | Michael Hanselmann | raise _ImportExportError("Failed to start %s on %s: %s" % |
259 | 033a1d00 | Michael Hanselmann | (self.MODE_TEXT, self.node_name, |
260 | 033a1d00 | Michael Hanselmann | result.fail_msg)) |
261 | 033a1d00 | Michael Hanselmann | |
262 | 033a1d00 | Michael Hanselmann | daemon_name = result.payload |
263 | 033a1d00 | Michael Hanselmann | |
264 | 033a1d00 | Michael Hanselmann | logging.info("Started %s %r on %s", self.MODE_TEXT, daemon_name, |
265 | 033a1d00 | Michael Hanselmann | self.node_name)
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266 | 033a1d00 | Michael Hanselmann | |
267 | 033a1d00 | Michael Hanselmann | self._ts_begin = time.time()
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268 | 033a1d00 | Michael Hanselmann | self._daemon_name = daemon_name
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269 | 033a1d00 | Michael Hanselmann | |
270 | 033a1d00 | Michael Hanselmann | return self._daemon_name |
271 | 033a1d00 | Michael Hanselmann | |
272 | 033a1d00 | Michael Hanselmann | def GetDaemonName(self): |
273 | 033a1d00 | Michael Hanselmann | """Returns the daemon name.
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274 | 033a1d00 | Michael Hanselmann |
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275 | 033a1d00 | Michael Hanselmann | """
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276 | 033a1d00 | Michael Hanselmann | assert self._daemon_name, "Daemon has not been started" |
277 | 033a1d00 | Michael Hanselmann | assert self._ts_cleanup is None |
278 | 033a1d00 | Michael Hanselmann | return self._daemon_name |
279 | 033a1d00 | Michael Hanselmann | |
280 | 033a1d00 | Michael Hanselmann | def Abort(self): |
281 | 033a1d00 | Michael Hanselmann | """Sends SIGTERM to import/export daemon (if still active).
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282 | 033a1d00 | Michael Hanselmann |
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283 | 033a1d00 | Michael Hanselmann | """
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284 | 033a1d00 | Michael Hanselmann | if self._daemon_name: |
285 | 033a1d00 | Michael Hanselmann | self._lu.LogWarning("Aborting %s %r on %s", |
286 | 033a1d00 | Michael Hanselmann | self.MODE_TEXT, self._daemon_name, self.node_name) |
287 | 033a1d00 | Michael Hanselmann | result = self._lu.rpc.call_impexp_abort(self.node_name, self._daemon_name) |
288 | 033a1d00 | Michael Hanselmann | if result.fail_msg:
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289 | 033a1d00 | Michael Hanselmann | self._lu.LogWarning("Failed to abort %s %r on %s: %s", |
290 | 033a1d00 | Michael Hanselmann | self.MODE_TEXT, self._daemon_name, |
291 | 033a1d00 | Michael Hanselmann | self.node_name, result.fail_msg)
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292 | 033a1d00 | Michael Hanselmann | return False |
293 | 033a1d00 | Michael Hanselmann | |
294 | 033a1d00 | Michael Hanselmann | return True |
295 | 033a1d00 | Michael Hanselmann | |
296 | 033a1d00 | Michael Hanselmann | def _SetDaemonData(self, data): |
297 | 033a1d00 | Michael Hanselmann | """Internal function for updating status daemon data.
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298 | 033a1d00 | Michael Hanselmann |
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299 | 033a1d00 | Michael Hanselmann | @type data: L{objects.ImportExportStatus}
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300 | 033a1d00 | Michael Hanselmann | @param data: Daemon status data
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301 | 033a1d00 | Michael Hanselmann |
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302 | 033a1d00 | Michael Hanselmann | """
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303 | 033a1d00 | Michael Hanselmann | assert self._ts_begin is not None |
304 | 033a1d00 | Michael Hanselmann | |
305 | 033a1d00 | Michael Hanselmann | if not data: |
306 | 033a1d00 | Michael Hanselmann | if _TimeoutExpired(self._ts_begin, self._timeouts.ready): |
307 | 033a1d00 | Michael Hanselmann | raise _ImportExportError("Didn't become ready after %s seconds" % |
308 | 033a1d00 | Michael Hanselmann | self._timeouts.ready)
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309 | 033a1d00 | Michael Hanselmann | |
310 | 033a1d00 | Michael Hanselmann | return False |
311 | 033a1d00 | Michael Hanselmann | |
312 | 033a1d00 | Michael Hanselmann | self._daemon = data
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313 | 033a1d00 | Michael Hanselmann | |
314 | 033a1d00 | Michael Hanselmann | return True |
315 | 033a1d00 | Michael Hanselmann | |
316 | 033a1d00 | Michael Hanselmann | def SetDaemonData(self, success, data): |
317 | 033a1d00 | Michael Hanselmann | """Updates daemon status data.
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318 | 033a1d00 | Michael Hanselmann |
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319 | 033a1d00 | Michael Hanselmann | @type success: bool
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320 | 033a1d00 | Michael Hanselmann | @param success: Whether fetching data was successful or not
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321 | 033a1d00 | Michael Hanselmann | @type data: L{objects.ImportExportStatus}
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322 | 033a1d00 | Michael Hanselmann | @param data: Daemon status data
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323 | 033a1d00 | Michael Hanselmann |
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324 | 033a1d00 | Michael Hanselmann | """
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325 | 033a1d00 | Michael Hanselmann | if not success: |
326 | 033a1d00 | Michael Hanselmann | if self._ts_last_error is None: |
327 | 033a1d00 | Michael Hanselmann | self._ts_last_error = time.time()
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328 | 033a1d00 | Michael Hanselmann | |
329 | 033a1d00 | Michael Hanselmann | elif _TimeoutExpired(self._ts_last_error, self._timeouts.error): |
330 | 033a1d00 | Michael Hanselmann | raise _ImportExportError("Too many errors while updating data") |
331 | 033a1d00 | Michael Hanselmann | |
332 | 033a1d00 | Michael Hanselmann | return False |
333 | 033a1d00 | Michael Hanselmann | |
334 | 033a1d00 | Michael Hanselmann | self._ts_last_error = None |
335 | 033a1d00 | Michael Hanselmann | |
336 | 033a1d00 | Michael Hanselmann | return self._SetDaemonData(data) |
337 | 033a1d00 | Michael Hanselmann | |
338 | 033a1d00 | Michael Hanselmann | def CheckListening(self): |
339 | 033a1d00 | Michael Hanselmann | """Checks whether the daemon is listening.
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340 | 033a1d00 | Michael Hanselmann |
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341 | 033a1d00 | Michael Hanselmann | """
|
342 | 033a1d00 | Michael Hanselmann | raise NotImplementedError() |
343 | 033a1d00 | Michael Hanselmann | |
344 | 033a1d00 | Michael Hanselmann | def _GetConnectedCheckEpoch(self): |
345 | 033a1d00 | Michael Hanselmann | """Returns timeout to calculate connect timeout.
|
346 | 033a1d00 | Michael Hanselmann |
|
347 | 033a1d00 | Michael Hanselmann | """
|
348 | 033a1d00 | Michael Hanselmann | raise NotImplementedError() |
349 | 033a1d00 | Michael Hanselmann | |
350 | 033a1d00 | Michael Hanselmann | def CheckConnected(self): |
351 | 033a1d00 | Michael Hanselmann | """Checks whether the daemon is connected.
|
352 | 033a1d00 | Michael Hanselmann |
|
353 | 033a1d00 | Michael Hanselmann | @rtype: bool
|
354 | 033a1d00 | Michael Hanselmann | @return: Whether the daemon is connected
|
355 | 033a1d00 | Michael Hanselmann |
|
356 | 033a1d00 | Michael Hanselmann | """
|
357 | 033a1d00 | Michael Hanselmann | assert self._daemon, "Daemon status missing" |
358 | 033a1d00 | Michael Hanselmann | |
359 | 033a1d00 | Michael Hanselmann | if self._ts_connected is not None: |
360 | 033a1d00 | Michael Hanselmann | return True |
361 | 033a1d00 | Michael Hanselmann | |
362 | 033a1d00 | Michael Hanselmann | if self._daemon.connected: |
363 | 033a1d00 | Michael Hanselmann | self._ts_connected = time.time()
|
364 | 033a1d00 | Michael Hanselmann | |
365 | 033a1d00 | Michael Hanselmann | # TODO: Log remote peer
|
366 | 033a1d00 | Michael Hanselmann | logging.debug("%s %r on %s is now connected",
|
367 | 033a1d00 | Michael Hanselmann | self.MODE_TEXT, self._daemon_name, self.node_name) |
368 | 033a1d00 | Michael Hanselmann | |
369 | 033a1d00 | Michael Hanselmann | self._cbs.ReportConnected(self, self._private) |
370 | 033a1d00 | Michael Hanselmann | |
371 | 033a1d00 | Michael Hanselmann | return True |
372 | 033a1d00 | Michael Hanselmann | |
373 | 033a1d00 | Michael Hanselmann | if _TimeoutExpired(self._GetConnectedCheckEpoch(), self._timeouts.connect): |
374 | 033a1d00 | Michael Hanselmann | raise _ImportExportError("Not connected after %s seconds" % |
375 | 033a1d00 | Michael Hanselmann | self._timeouts.connect)
|
376 | 033a1d00 | Michael Hanselmann | |
377 | 033a1d00 | Michael Hanselmann | return False |
378 | 033a1d00 | Michael Hanselmann | |
379 | 1a2e7fe9 | Michael Hanselmann | def _CheckProgress(self): |
380 | 1a2e7fe9 | Michael Hanselmann | """Checks whether a progress update should be reported.
|
381 | 1a2e7fe9 | Michael Hanselmann |
|
382 | 1a2e7fe9 | Michael Hanselmann | """
|
383 | 1a2e7fe9 | Michael Hanselmann | if ((self._ts_last_progress is None or |
384 | 1a2e7fe9 | Michael Hanselmann | _TimeoutExpired(self._ts_last_progress, self._timeouts.progress)) and |
385 | 1a2e7fe9 | Michael Hanselmann | self._daemon and |
386 | 1a2e7fe9 | Michael Hanselmann | self._daemon.progress_mbytes is not None and |
387 | 1a2e7fe9 | Michael Hanselmann | self._daemon.progress_throughput is not None): |
388 | 1a2e7fe9 | Michael Hanselmann | self._cbs.ReportProgress(self, self._private) |
389 | 1a2e7fe9 | Michael Hanselmann | self._ts_last_progress = time.time()
|
390 | 1a2e7fe9 | Michael Hanselmann | |
391 | 033a1d00 | Michael Hanselmann | def CheckFinished(self): |
392 | 033a1d00 | Michael Hanselmann | """Checks whether the daemon exited.
|
393 | 033a1d00 | Michael Hanselmann |
|
394 | 033a1d00 | Michael Hanselmann | @rtype: bool
|
395 | 033a1d00 | Michael Hanselmann | @return: Whether the transfer is finished
|
396 | 033a1d00 | Michael Hanselmann |
|
397 | 033a1d00 | Michael Hanselmann | """
|
398 | 033a1d00 | Michael Hanselmann | assert self._daemon, "Daemon status missing" |
399 | 033a1d00 | Michael Hanselmann | |
400 | 033a1d00 | Michael Hanselmann | if self._ts_finished: |
401 | 033a1d00 | Michael Hanselmann | return True |
402 | 033a1d00 | Michael Hanselmann | |
403 | 033a1d00 | Michael Hanselmann | if self._daemon.exit_status is None: |
404 | 1a2e7fe9 | Michael Hanselmann | # TODO: Adjust delay for ETA expiring soon
|
405 | 1a2e7fe9 | Michael Hanselmann | self._CheckProgress()
|
406 | 033a1d00 | Michael Hanselmann | return False |
407 | 033a1d00 | Michael Hanselmann | |
408 | 033a1d00 | Michael Hanselmann | self._ts_finished = time.time()
|
409 | 033a1d00 | Michael Hanselmann | |
410 | 033a1d00 | Michael Hanselmann | self._ReportFinished(self._daemon.exit_status == 0, |
411 | 033a1d00 | Michael Hanselmann | self._daemon.error_message)
|
412 | 033a1d00 | Michael Hanselmann | |
413 | 033a1d00 | Michael Hanselmann | return True |
414 | 033a1d00 | Michael Hanselmann | |
415 | 033a1d00 | Michael Hanselmann | def _ReportFinished(self, success, message): |
416 | 033a1d00 | Michael Hanselmann | """Transfer is finished or daemon exited.
|
417 | 033a1d00 | Michael Hanselmann |
|
418 | 033a1d00 | Michael Hanselmann | @type success: bool
|
419 | 033a1d00 | Michael Hanselmann | @param success: Whether the transfer was successful
|
420 | 033a1d00 | Michael Hanselmann | @type message: string
|
421 | 033a1d00 | Michael Hanselmann | @param message: Error message
|
422 | 033a1d00 | Michael Hanselmann |
|
423 | 033a1d00 | Michael Hanselmann | """
|
424 | 033a1d00 | Michael Hanselmann | assert self.success is None |
425 | 033a1d00 | Michael Hanselmann | |
426 | 033a1d00 | Michael Hanselmann | self.success = success
|
427 | 033a1d00 | Michael Hanselmann | self.final_message = message
|
428 | 033a1d00 | Michael Hanselmann | |
429 | 033a1d00 | Michael Hanselmann | if success:
|
430 | 033a1d00 | Michael Hanselmann | logging.info("%s %r on %s succeeded", self.MODE_TEXT, self._daemon_name, |
431 | 033a1d00 | Michael Hanselmann | self.node_name)
|
432 | 033a1d00 | Michael Hanselmann | elif self._daemon_name: |
433 | 033a1d00 | Michael Hanselmann | self._lu.LogWarning("%s %r on %s failed: %s", |
434 | 033a1d00 | Michael Hanselmann | self.MODE_TEXT, self._daemon_name, self.node_name, |
435 | 033a1d00 | Michael Hanselmann | message) |
436 | 033a1d00 | Michael Hanselmann | else:
|
437 | 033a1d00 | Michael Hanselmann | self._lu.LogWarning("%s on %s failed: %s", self.MODE_TEXT, |
438 | 033a1d00 | Michael Hanselmann | self.node_name, message)
|
439 | 033a1d00 | Michael Hanselmann | |
440 | 033a1d00 | Michael Hanselmann | self._cbs.ReportFinished(self, self._private) |
441 | 033a1d00 | Michael Hanselmann | |
442 | 033a1d00 | Michael Hanselmann | def _Finalize(self): |
443 | 033a1d00 | Michael Hanselmann | """Makes the RPC call to finalize this import/export.
|
444 | 033a1d00 | Michael Hanselmann |
|
445 | 033a1d00 | Michael Hanselmann | """
|
446 | 033a1d00 | Michael Hanselmann | return self._lu.rpc.call_impexp_cleanup(self.node_name, self._daemon_name) |
447 | 033a1d00 | Michael Hanselmann | |
448 | 033a1d00 | Michael Hanselmann | def Finalize(self, error=None): |
449 | 033a1d00 | Michael Hanselmann | """Finalizes this import/export.
|
450 | 033a1d00 | Michael Hanselmann |
|
451 | 033a1d00 | Michael Hanselmann | """
|
452 | 033a1d00 | Michael Hanselmann | if self._daemon_name: |
453 | 033a1d00 | Michael Hanselmann | logging.info("Finalizing %s %r on %s",
|
454 | 033a1d00 | Michael Hanselmann | self.MODE_TEXT, self._daemon_name, self.node_name) |
455 | 033a1d00 | Michael Hanselmann | |
456 | 033a1d00 | Michael Hanselmann | result = self._Finalize()
|
457 | 033a1d00 | Michael Hanselmann | if result.fail_msg:
|
458 | 033a1d00 | Michael Hanselmann | self._lu.LogWarning("Failed to finalize %s %r on %s: %s", |
459 | 033a1d00 | Michael Hanselmann | self.MODE_TEXT, self._daemon_name, |
460 | 033a1d00 | Michael Hanselmann | self.node_name, result.fail_msg)
|
461 | 033a1d00 | Michael Hanselmann | return False |
462 | 033a1d00 | Michael Hanselmann | |
463 | 033a1d00 | Michael Hanselmann | # Daemon is no longer running
|
464 | 033a1d00 | Michael Hanselmann | self._daemon_name = None |
465 | 033a1d00 | Michael Hanselmann | self._ts_cleanup = time.time()
|
466 | 033a1d00 | Michael Hanselmann | |
467 | 033a1d00 | Michael Hanselmann | if error:
|
468 | 033a1d00 | Michael Hanselmann | self._ReportFinished(False, error) |
469 | 033a1d00 | Michael Hanselmann | |
470 | 033a1d00 | Michael Hanselmann | return True |
471 | 033a1d00 | Michael Hanselmann | |
472 | 033a1d00 | Michael Hanselmann | |
473 | 033a1d00 | Michael Hanselmann | class DiskImport(_DiskImportExportBase): |
474 | 033a1d00 | Michael Hanselmann | MODE_TEXT = "import"
|
475 | 033a1d00 | Michael Hanselmann | |
476 | eb630f50 | Michael Hanselmann | def __init__(self, lu, node_name, opts, instance, |
477 | 033a1d00 | Michael Hanselmann | dest, dest_args, timeouts, cbs, private=None):
|
478 | 033a1d00 | Michael Hanselmann | """Initializes this class.
|
479 | 033a1d00 | Michael Hanselmann |
|
480 | 033a1d00 | Michael Hanselmann | @param lu: Logical unit instance
|
481 | 033a1d00 | Michael Hanselmann | @type node_name: string
|
482 | 033a1d00 | Michael Hanselmann | @param node_name: Node name for import
|
483 | eb630f50 | Michael Hanselmann | @type opts: L{objects.ImportExportOptions}
|
484 | eb630f50 | Michael Hanselmann | @param opts: Import/export daemon options
|
485 | 033a1d00 | Michael Hanselmann | @type instance: L{objects.Instance}
|
486 | 033a1d00 | Michael Hanselmann | @param instance: Instance object
|
487 | 033a1d00 | Michael Hanselmann | @param dest: I/O destination
|
488 | 033a1d00 | Michael Hanselmann | @param dest_args: I/O arguments
|
489 | 033a1d00 | Michael Hanselmann | @type timeouts: L{ImportExportTimeouts}
|
490 | 033a1d00 | Michael Hanselmann | @param timeouts: Timeouts for this import
|
491 | 033a1d00 | Michael Hanselmann | @type cbs: L{ImportExportCbBase}
|
492 | 033a1d00 | Michael Hanselmann | @param cbs: Callbacks
|
493 | 033a1d00 | Michael Hanselmann | @param private: Private data for callback functions
|
494 | 033a1d00 | Michael Hanselmann |
|
495 | 033a1d00 | Michael Hanselmann | """
|
496 | eb630f50 | Michael Hanselmann | _DiskImportExportBase.__init__(self, lu, node_name, opts,
|
497 | 033a1d00 | Michael Hanselmann | instance, timeouts, cbs, private) |
498 | 033a1d00 | Michael Hanselmann | self._dest = dest
|
499 | 033a1d00 | Michael Hanselmann | self._dest_args = dest_args
|
500 | 033a1d00 | Michael Hanselmann | |
501 | 033a1d00 | Michael Hanselmann | # Timestamps
|
502 | 033a1d00 | Michael Hanselmann | self._ts_listening = None |
503 | 033a1d00 | Michael Hanselmann | |
504 | 033a1d00 | Michael Hanselmann | @property
|
505 | 033a1d00 | Michael Hanselmann | def listen_port(self): |
506 | 033a1d00 | Michael Hanselmann | """Returns the port the daemon is listening on.
|
507 | 033a1d00 | Michael Hanselmann |
|
508 | 033a1d00 | Michael Hanselmann | """
|
509 | 033a1d00 | Michael Hanselmann | if self._daemon: |
510 | 033a1d00 | Michael Hanselmann | return self._daemon.listen_port |
511 | 033a1d00 | Michael Hanselmann | |
512 | 033a1d00 | Michael Hanselmann | return None |
513 | 033a1d00 | Michael Hanselmann | |
514 | 033a1d00 | Michael Hanselmann | def _StartDaemon(self): |
515 | 033a1d00 | Michael Hanselmann | """Starts the import daemon.
|
516 | 033a1d00 | Michael Hanselmann |
|
517 | 033a1d00 | Michael Hanselmann | """
|
518 | eb630f50 | Michael Hanselmann | return self._lu.rpc.call_import_start(self.node_name, self._opts, |
519 | eb630f50 | Michael Hanselmann | self._instance,
|
520 | 033a1d00 | Michael Hanselmann | self._dest, self._dest_args) |
521 | 033a1d00 | Michael Hanselmann | |
522 | 033a1d00 | Michael Hanselmann | def CheckListening(self): |
523 | 033a1d00 | Michael Hanselmann | """Checks whether the daemon is listening.
|
524 | 033a1d00 | Michael Hanselmann |
|
525 | 033a1d00 | Michael Hanselmann | @rtype: bool
|
526 | 033a1d00 | Michael Hanselmann | @return: Whether the daemon is listening
|
527 | 033a1d00 | Michael Hanselmann |
|
528 | 033a1d00 | Michael Hanselmann | """
|
529 | 033a1d00 | Michael Hanselmann | assert self._daemon, "Daemon status missing" |
530 | 033a1d00 | Michael Hanselmann | |
531 | 033a1d00 | Michael Hanselmann | if self._ts_listening is not None: |
532 | 033a1d00 | Michael Hanselmann | return True |
533 | 033a1d00 | Michael Hanselmann | |
534 | 033a1d00 | Michael Hanselmann | port = self._daemon.listen_port
|
535 | 033a1d00 | Michael Hanselmann | if port is not None: |
536 | 033a1d00 | Michael Hanselmann | self._ts_listening = time.time()
|
537 | 033a1d00 | Michael Hanselmann | |
538 | 033a1d00 | Michael Hanselmann | logging.debug("Import %r on %s is now listening on port %s",
|
539 | 033a1d00 | Michael Hanselmann | self._daemon_name, self.node_name, port) |
540 | 033a1d00 | Michael Hanselmann | |
541 | 033a1d00 | Michael Hanselmann | self._cbs.ReportListening(self, self._private) |
542 | 033a1d00 | Michael Hanselmann | |
543 | 033a1d00 | Michael Hanselmann | return True |
544 | 033a1d00 | Michael Hanselmann | |
545 | 033a1d00 | Michael Hanselmann | if _TimeoutExpired(self._ts_begin, self._timeouts.listen): |
546 | 033a1d00 | Michael Hanselmann | raise _ImportExportError("Not listening after %s seconds" % |
547 | 033a1d00 | Michael Hanselmann | self._timeouts.listen)
|
548 | 033a1d00 | Michael Hanselmann | |
549 | 033a1d00 | Michael Hanselmann | return False |
550 | 033a1d00 | Michael Hanselmann | |
551 | 033a1d00 | Michael Hanselmann | def _GetConnectedCheckEpoch(self): |
552 | 033a1d00 | Michael Hanselmann | """Returns the time since we started listening.
|
553 | 033a1d00 | Michael Hanselmann |
|
554 | 033a1d00 | Michael Hanselmann | """
|
555 | 033a1d00 | Michael Hanselmann | assert self._ts_listening is not None, \ |
556 | 033a1d00 | Michael Hanselmann | ("Checking whether an import is connected is only useful"
|
557 | 033a1d00 | Michael Hanselmann | " once it's been listening")
|
558 | 033a1d00 | Michael Hanselmann | |
559 | 033a1d00 | Michael Hanselmann | return self._ts_listening |
560 | 033a1d00 | Michael Hanselmann | |
561 | 033a1d00 | Michael Hanselmann | |
562 | 033a1d00 | Michael Hanselmann | class DiskExport(_DiskImportExportBase): |
563 | 033a1d00 | Michael Hanselmann | MODE_TEXT = "export"
|
564 | 033a1d00 | Michael Hanselmann | |
565 | eb630f50 | Michael Hanselmann | def __init__(self, lu, node_name, opts, |
566 | 033a1d00 | Michael Hanselmann | dest_host, dest_port, instance, source, source_args, |
567 | 033a1d00 | Michael Hanselmann | timeouts, cbs, private=None):
|
568 | 033a1d00 | Michael Hanselmann | """Initializes this class.
|
569 | 033a1d00 | Michael Hanselmann |
|
570 | 033a1d00 | Michael Hanselmann | @param lu: Logical unit instance
|
571 | 033a1d00 | Michael Hanselmann | @type node_name: string
|
572 | 033a1d00 | Michael Hanselmann | @param node_name: Node name for import
|
573 | eb630f50 | Michael Hanselmann | @type opts: L{objects.ImportExportOptions}
|
574 | eb630f50 | Michael Hanselmann | @param opts: Import/export daemon options
|
575 | 033a1d00 | Michael Hanselmann | @type dest_host: string
|
576 | 033a1d00 | Michael Hanselmann | @param dest_host: Destination host name or IP address
|
577 | 033a1d00 | Michael Hanselmann | @type dest_port: number
|
578 | 033a1d00 | Michael Hanselmann | @param dest_port: Destination port number
|
579 | 033a1d00 | Michael Hanselmann | @type instance: L{objects.Instance}
|
580 | 033a1d00 | Michael Hanselmann | @param instance: Instance object
|
581 | 033a1d00 | Michael Hanselmann | @param source: I/O source
|
582 | 033a1d00 | Michael Hanselmann | @param source_args: I/O source
|
583 | 033a1d00 | Michael Hanselmann | @type timeouts: L{ImportExportTimeouts}
|
584 | 033a1d00 | Michael Hanselmann | @param timeouts: Timeouts for this import
|
585 | 033a1d00 | Michael Hanselmann | @type cbs: L{ImportExportCbBase}
|
586 | 033a1d00 | Michael Hanselmann | @param cbs: Callbacks
|
587 | 033a1d00 | Michael Hanselmann | @param private: Private data for callback functions
|
588 | 033a1d00 | Michael Hanselmann |
|
589 | 033a1d00 | Michael Hanselmann | """
|
590 | eb630f50 | Michael Hanselmann | _DiskImportExportBase.__init__(self, lu, node_name, opts,
|
591 | 033a1d00 | Michael Hanselmann | instance, timeouts, cbs, private) |
592 | 033a1d00 | Michael Hanselmann | self._dest_host = dest_host
|
593 | 033a1d00 | Michael Hanselmann | self._dest_port = dest_port
|
594 | 033a1d00 | Michael Hanselmann | self._source = source
|
595 | 033a1d00 | Michael Hanselmann | self._source_args = source_args
|
596 | 033a1d00 | Michael Hanselmann | |
597 | 033a1d00 | Michael Hanselmann | def _StartDaemon(self): |
598 | 033a1d00 | Michael Hanselmann | """Starts the export daemon.
|
599 | 033a1d00 | Michael Hanselmann |
|
600 | 033a1d00 | Michael Hanselmann | """
|
601 | eb630f50 | Michael Hanselmann | return self._lu.rpc.call_export_start(self.node_name, self._opts, |
602 | 033a1d00 | Michael Hanselmann | self._dest_host, self._dest_port, |
603 | 033a1d00 | Michael Hanselmann | self._instance, self._source, |
604 | 033a1d00 | Michael Hanselmann | self._source_args)
|
605 | 033a1d00 | Michael Hanselmann | |
606 | 033a1d00 | Michael Hanselmann | def CheckListening(self): |
607 | 033a1d00 | Michael Hanselmann | """Checks whether the daemon is listening.
|
608 | 033a1d00 | Michael Hanselmann |
|
609 | 033a1d00 | Michael Hanselmann | """
|
610 | 033a1d00 | Michael Hanselmann | # Only an import can be listening
|
611 | 033a1d00 | Michael Hanselmann | return True |
612 | 033a1d00 | Michael Hanselmann | |
613 | 033a1d00 | Michael Hanselmann | def _GetConnectedCheckEpoch(self): |
614 | 033a1d00 | Michael Hanselmann | """Returns the time since the daemon started.
|
615 | 033a1d00 | Michael Hanselmann |
|
616 | 033a1d00 | Michael Hanselmann | """
|
617 | 033a1d00 | Michael Hanselmann | assert self._ts_begin is not None |
618 | 033a1d00 | Michael Hanselmann | |
619 | 033a1d00 | Michael Hanselmann | return self._ts_begin |
620 | 033a1d00 | Michael Hanselmann | |
621 | 033a1d00 | Michael Hanselmann | |
622 | 1a2e7fe9 | Michael Hanselmann | def FormatProgress(progress): |
623 | 1a2e7fe9 | Michael Hanselmann | """Formats progress information for user consumption
|
624 | 1a2e7fe9 | Michael Hanselmann |
|
625 | 1a2e7fe9 | Michael Hanselmann | """
|
626 | e6b8d02d | Michael Hanselmann | (mbytes, throughput, percent, eta) = progress |
627 | 1a2e7fe9 | Michael Hanselmann | |
628 | 1a2e7fe9 | Michael Hanselmann | parts = [ |
629 | 1a2e7fe9 | Michael Hanselmann | utils.FormatUnit(mbytes, "h"),
|
630 | 1a2e7fe9 | Michael Hanselmann | |
631 | 1a2e7fe9 | Michael Hanselmann | # Not using FormatUnit as it doesn't support kilobytes
|
632 | 1a2e7fe9 | Michael Hanselmann | "%0.1f MiB/s" % throughput,
|
633 | 1a2e7fe9 | Michael Hanselmann | ] |
634 | 1a2e7fe9 | Michael Hanselmann | |
635 | 1a2e7fe9 | Michael Hanselmann | if percent is not None: |
636 | 1a2e7fe9 | Michael Hanselmann | parts.append("%d%%" % percent)
|
637 | 1a2e7fe9 | Michael Hanselmann | |
638 | e6b8d02d | Michael Hanselmann | if eta is not None: |
639 | e6b8d02d | Michael Hanselmann | parts.append("ETA %s" % utils.FormatSeconds(eta))
|
640 | 1a2e7fe9 | Michael Hanselmann | |
641 | 1a2e7fe9 | Michael Hanselmann | return utils.CommaJoin(parts)
|
642 | 1a2e7fe9 | Michael Hanselmann | |
643 | 1a2e7fe9 | Michael Hanselmann | |
644 | 033a1d00 | Michael Hanselmann | class ImportExportLoop: |
645 | 033a1d00 | Michael Hanselmann | MIN_DELAY = 1.0
|
646 | 033a1d00 | Michael Hanselmann | MAX_DELAY = 20.0
|
647 | 033a1d00 | Michael Hanselmann | |
648 | 033a1d00 | Michael Hanselmann | def __init__(self, lu): |
649 | 033a1d00 | Michael Hanselmann | """Initializes this class.
|
650 | 033a1d00 | Michael Hanselmann |
|
651 | 033a1d00 | Michael Hanselmann | """
|
652 | 033a1d00 | Michael Hanselmann | self._lu = lu
|
653 | 033a1d00 | Michael Hanselmann | self._queue = []
|
654 | 033a1d00 | Michael Hanselmann | self._pending_add = []
|
655 | 033a1d00 | Michael Hanselmann | |
656 | 033a1d00 | Michael Hanselmann | def Add(self, diskie): |
657 | 033a1d00 | Michael Hanselmann | """Adds an import/export object to the loop.
|
658 | 033a1d00 | Michael Hanselmann |
|
659 | 033a1d00 | Michael Hanselmann | @type diskie: Subclass of L{_DiskImportExportBase}
|
660 | 033a1d00 | Michael Hanselmann | @param diskie: Import/export object
|
661 | 033a1d00 | Michael Hanselmann |
|
662 | 033a1d00 | Michael Hanselmann | """
|
663 | 033a1d00 | Michael Hanselmann | assert diskie not in self._pending_add |
664 | 033a1d00 | Michael Hanselmann | assert diskie.loop is None |
665 | 033a1d00 | Michael Hanselmann | |
666 | 033a1d00 | Michael Hanselmann | diskie.SetLoop(self)
|
667 | 033a1d00 | Michael Hanselmann | |
668 | 033a1d00 | Michael Hanselmann | # Adding new objects to a staging list is necessary, otherwise the main
|
669 | 033a1d00 | Michael Hanselmann | # loop gets confused if callbacks modify the queue while the main loop is
|
670 | 033a1d00 | Michael Hanselmann | # iterating over it.
|
671 | 033a1d00 | Michael Hanselmann | self._pending_add.append(diskie)
|
672 | 033a1d00 | Michael Hanselmann | |
673 | 033a1d00 | Michael Hanselmann | @staticmethod
|
674 | 033a1d00 | Michael Hanselmann | def _CollectDaemonStatus(lu, daemons): |
675 | 033a1d00 | Michael Hanselmann | """Collects the status for all import/export daemons.
|
676 | 033a1d00 | Michael Hanselmann |
|
677 | 033a1d00 | Michael Hanselmann | """
|
678 | 033a1d00 | Michael Hanselmann | daemon_status = {} |
679 | 033a1d00 | Michael Hanselmann | |
680 | 033a1d00 | Michael Hanselmann | for node_name, names in daemons.iteritems(): |
681 | 033a1d00 | Michael Hanselmann | result = lu.rpc.call_impexp_status(node_name, names) |
682 | 033a1d00 | Michael Hanselmann | if result.fail_msg:
|
683 | 033a1d00 | Michael Hanselmann | lu.LogWarning("Failed to get daemon status on %s: %s",
|
684 | 033a1d00 | Michael Hanselmann | node_name, result.fail_msg) |
685 | 033a1d00 | Michael Hanselmann | continue
|
686 | 033a1d00 | Michael Hanselmann | |
687 | 033a1d00 | Michael Hanselmann | assert len(names) == len(result.payload) |
688 | 033a1d00 | Michael Hanselmann | |
689 | 033a1d00 | Michael Hanselmann | daemon_status[node_name] = dict(zip(names, result.payload)) |
690 | 033a1d00 | Michael Hanselmann | |
691 | 033a1d00 | Michael Hanselmann | return daemon_status
|
692 | 033a1d00 | Michael Hanselmann | |
693 | 033a1d00 | Michael Hanselmann | @staticmethod
|
694 | 033a1d00 | Michael Hanselmann | def _GetActiveDaemonNames(queue): |
695 | 033a1d00 | Michael Hanselmann | """Gets the names of all active daemons.
|
696 | 033a1d00 | Michael Hanselmann |
|
697 | 033a1d00 | Michael Hanselmann | """
|
698 | 033a1d00 | Michael Hanselmann | result = {} |
699 | 033a1d00 | Michael Hanselmann | for diskie in queue: |
700 | 033a1d00 | Michael Hanselmann | if not diskie.active: |
701 | 033a1d00 | Michael Hanselmann | continue
|
702 | 033a1d00 | Michael Hanselmann | |
703 | 033a1d00 | Michael Hanselmann | try:
|
704 | 033a1d00 | Michael Hanselmann | # Start daemon if necessary
|
705 | 033a1d00 | Michael Hanselmann | daemon_name = diskie.CheckDaemon() |
706 | 033a1d00 | Michael Hanselmann | except _ImportExportError, err:
|
707 | 033a1d00 | Michael Hanselmann | logging.exception("%s failed", diskie.MODE_TEXT)
|
708 | 033a1d00 | Michael Hanselmann | diskie.Finalize(error=str(err))
|
709 | 033a1d00 | Michael Hanselmann | continue
|
710 | 033a1d00 | Michael Hanselmann | |
711 | 033a1d00 | Michael Hanselmann | result.setdefault(diskie.node_name, []).append(daemon_name) |
712 | 033a1d00 | Michael Hanselmann | |
713 | 033a1d00 | Michael Hanselmann | assert len(queue) >= len(result) |
714 | 033a1d00 | Michael Hanselmann | assert len(queue) >= sum([len(names) for names in result.itervalues()]) |
715 | 033a1d00 | Michael Hanselmann | |
716 | 033a1d00 | Michael Hanselmann | logging.debug("daemons=%r", result)
|
717 | 033a1d00 | Michael Hanselmann | |
718 | 033a1d00 | Michael Hanselmann | return result
|
719 | 033a1d00 | Michael Hanselmann | |
720 | 033a1d00 | Michael Hanselmann | def _AddPendingToQueue(self): |
721 | 033a1d00 | Michael Hanselmann | """Adds all pending import/export objects to the internal queue.
|
722 | 033a1d00 | Michael Hanselmann |
|
723 | 033a1d00 | Michael Hanselmann | """
|
724 | 033a1d00 | Michael Hanselmann | assert compat.all(diskie not in self._queue and diskie.loop == self |
725 | 033a1d00 | Michael Hanselmann | for diskie in self._pending_add) |
726 | 033a1d00 | Michael Hanselmann | |
727 | 033a1d00 | Michael Hanselmann | self._queue.extend(self._pending_add) |
728 | 033a1d00 | Michael Hanselmann | |
729 | 033a1d00 | Michael Hanselmann | del self._pending_add[:] |
730 | 033a1d00 | Michael Hanselmann | |
731 | 033a1d00 | Michael Hanselmann | def Run(self): |
732 | 033a1d00 | Michael Hanselmann | """Utility main loop.
|
733 | 033a1d00 | Michael Hanselmann |
|
734 | 033a1d00 | Michael Hanselmann | """
|
735 | 033a1d00 | Michael Hanselmann | while True: |
736 | 033a1d00 | Michael Hanselmann | self._AddPendingToQueue()
|
737 | 033a1d00 | Michael Hanselmann | |
738 | 033a1d00 | Michael Hanselmann | # Collect all active daemon names
|
739 | 033a1d00 | Michael Hanselmann | daemons = self._GetActiveDaemonNames(self._queue) |
740 | 033a1d00 | Michael Hanselmann | if not daemons: |
741 | 033a1d00 | Michael Hanselmann | break
|
742 | 033a1d00 | Michael Hanselmann | |
743 | 033a1d00 | Michael Hanselmann | # Collection daemon status data
|
744 | 033a1d00 | Michael Hanselmann | data = self._CollectDaemonStatus(self._lu, daemons) |
745 | 033a1d00 | Michael Hanselmann | |
746 | 033a1d00 | Michael Hanselmann | # Use data
|
747 | 033a1d00 | Michael Hanselmann | delay = self.MAX_DELAY
|
748 | 033a1d00 | Michael Hanselmann | for diskie in self._queue: |
749 | 033a1d00 | Michael Hanselmann | if not diskie.active: |
750 | 033a1d00 | Michael Hanselmann | continue
|
751 | 033a1d00 | Michael Hanselmann | |
752 | 033a1d00 | Michael Hanselmann | try:
|
753 | 033a1d00 | Michael Hanselmann | try:
|
754 | 033a1d00 | Michael Hanselmann | all_daemon_data = data[diskie.node_name] |
755 | 033a1d00 | Michael Hanselmann | except KeyError: |
756 | 033a1d00 | Michael Hanselmann | result = diskie.SetDaemonData(False, None) |
757 | 033a1d00 | Michael Hanselmann | else:
|
758 | 033a1d00 | Michael Hanselmann | result = \ |
759 | 033a1d00 | Michael Hanselmann | diskie.SetDaemonData(True,
|
760 | 033a1d00 | Michael Hanselmann | all_daemon_data[diskie.GetDaemonName()]) |
761 | 033a1d00 | Michael Hanselmann | |
762 | 033a1d00 | Michael Hanselmann | if not result: |
763 | 033a1d00 | Michael Hanselmann | # Daemon not yet ready, retry soon
|
764 | 033a1d00 | Michael Hanselmann | delay = min(3.0, delay) |
765 | 033a1d00 | Michael Hanselmann | continue
|
766 | 033a1d00 | Michael Hanselmann | |
767 | 033a1d00 | Michael Hanselmann | if diskie.CheckFinished():
|
768 | 033a1d00 | Michael Hanselmann | # Transfer finished
|
769 | 033a1d00 | Michael Hanselmann | diskie.Finalize() |
770 | 033a1d00 | Michael Hanselmann | continue
|
771 | 033a1d00 | Michael Hanselmann | |
772 | 033a1d00 | Michael Hanselmann | # Normal case: check again in 5 seconds
|
773 | 033a1d00 | Michael Hanselmann | delay = min(5.0, delay) |
774 | 033a1d00 | Michael Hanselmann | |
775 | 033a1d00 | Michael Hanselmann | if not diskie.CheckListening(): |
776 | 033a1d00 | Michael Hanselmann | # Not yet listening, retry soon
|
777 | 033a1d00 | Michael Hanselmann | delay = min(1.0, delay) |
778 | 033a1d00 | Michael Hanselmann | continue
|
779 | 033a1d00 | Michael Hanselmann | |
780 | 033a1d00 | Michael Hanselmann | if not diskie.CheckConnected(): |
781 | 033a1d00 | Michael Hanselmann | # Not yet connected, retry soon
|
782 | 033a1d00 | Michael Hanselmann | delay = min(1.0, delay) |
783 | 033a1d00 | Michael Hanselmann | continue
|
784 | 033a1d00 | Michael Hanselmann | |
785 | 033a1d00 | Michael Hanselmann | except _ImportExportError, err:
|
786 | 033a1d00 | Michael Hanselmann | logging.exception("%s failed", diskie.MODE_TEXT)
|
787 | 033a1d00 | Michael Hanselmann | diskie.Finalize(error=str(err))
|
788 | 033a1d00 | Michael Hanselmann | |
789 | 033a1d00 | Michael Hanselmann | if not compat.any([diskie.active for diskie in self._queue]): |
790 | 033a1d00 | Michael Hanselmann | break
|
791 | 033a1d00 | Michael Hanselmann | |
792 | 033a1d00 | Michael Hanselmann | # Wait a bit
|
793 | 033a1d00 | Michael Hanselmann | delay = min(self.MAX_DELAY, max(self.MIN_DELAY, delay)) |
794 | 033a1d00 | Michael Hanselmann | logging.debug("Waiting for %ss", delay)
|
795 | 033a1d00 | Michael Hanselmann | time.sleep(delay) |
796 | 033a1d00 | Michael Hanselmann | |
797 | 033a1d00 | Michael Hanselmann | def FinalizeAll(self): |
798 | 033a1d00 | Michael Hanselmann | """Finalizes all pending transfers.
|
799 | 033a1d00 | Michael Hanselmann |
|
800 | 033a1d00 | Michael Hanselmann | """
|
801 | 033a1d00 | Michael Hanselmann | success = True
|
802 | 033a1d00 | Michael Hanselmann | |
803 | 033a1d00 | Michael Hanselmann | for diskie in self._queue: |
804 | 033a1d00 | Michael Hanselmann | success = diskie.Finalize() and success
|
805 | 033a1d00 | Michael Hanselmann | |
806 | 033a1d00 | Michael Hanselmann | return success
|
807 | 5d97d6dd | Michael Hanselmann | |
808 | 5d97d6dd | Michael Hanselmann | |
809 | 5d97d6dd | Michael Hanselmann | class _TransferInstCbBase(ImportExportCbBase): |
810 | 5d97d6dd | Michael Hanselmann | def __init__(self, lu, feedback_fn, instance, timeouts, src_node, src_cbs, |
811 | a5310c2a | Michael Hanselmann | dest_node, dest_ip, export_opts): |
812 | 5d97d6dd | Michael Hanselmann | """Initializes this class.
|
813 | 5d97d6dd | Michael Hanselmann |
|
814 | 5d97d6dd | Michael Hanselmann | """
|
815 | 5d97d6dd | Michael Hanselmann | ImportExportCbBase.__init__(self)
|
816 | 5d97d6dd | Michael Hanselmann | |
817 | 5d97d6dd | Michael Hanselmann | self.lu = lu
|
818 | 5d97d6dd | Michael Hanselmann | self.feedback_fn = feedback_fn
|
819 | 5d97d6dd | Michael Hanselmann | self.instance = instance
|
820 | 5d97d6dd | Michael Hanselmann | self.timeouts = timeouts
|
821 | 5d97d6dd | Michael Hanselmann | self.src_node = src_node
|
822 | 5d97d6dd | Michael Hanselmann | self.src_cbs = src_cbs
|
823 | 5d97d6dd | Michael Hanselmann | self.dest_node = dest_node
|
824 | 5d97d6dd | Michael Hanselmann | self.dest_ip = dest_ip
|
825 | a5310c2a | Michael Hanselmann | self.export_opts = export_opts
|
826 | 5d97d6dd | Michael Hanselmann | |
827 | 5d97d6dd | Michael Hanselmann | |
828 | 5d97d6dd | Michael Hanselmann | class _TransferInstSourceCb(_TransferInstCbBase): |
829 | 5d97d6dd | Michael Hanselmann | def ReportConnected(self, ie, dtp): |
830 | 5d97d6dd | Michael Hanselmann | """Called when a connection has been established.
|
831 | 5d97d6dd | Michael Hanselmann |
|
832 | 5d97d6dd | Michael Hanselmann | """
|
833 | 5d97d6dd | Michael Hanselmann | assert self.src_cbs is None |
834 | 5d97d6dd | Michael Hanselmann | assert dtp.src_export == ie
|
835 | 5d97d6dd | Michael Hanselmann | assert dtp.dest_import
|
836 | 5d97d6dd | Michael Hanselmann | |
837 | 5d97d6dd | Michael Hanselmann | self.feedback_fn("%s is sending data on %s" % |
838 | 5d97d6dd | Michael Hanselmann | (dtp.data.name, ie.node_name)) |
839 | 5d97d6dd | Michael Hanselmann | |
840 | 1a2e7fe9 | Michael Hanselmann | def ReportProgress(self, ie, dtp): |
841 | 1a2e7fe9 | Michael Hanselmann | """Called when new progress information should be reported.
|
842 | 1a2e7fe9 | Michael Hanselmann |
|
843 | 1a2e7fe9 | Michael Hanselmann | """
|
844 | 1a2e7fe9 | Michael Hanselmann | progress = ie.progress |
845 | 1a2e7fe9 | Michael Hanselmann | if not progress: |
846 | 1a2e7fe9 | Michael Hanselmann | return
|
847 | 1a2e7fe9 | Michael Hanselmann | |
848 | 1a2e7fe9 | Michael Hanselmann | self.feedback_fn("%s sent %s" % (dtp.data.name, FormatProgress(progress))) |
849 | 1a2e7fe9 | Michael Hanselmann | |
850 | 5d97d6dd | Michael Hanselmann | def ReportFinished(self, ie, dtp): |
851 | 5d97d6dd | Michael Hanselmann | """Called when a transfer has finished.
|
852 | 5d97d6dd | Michael Hanselmann |
|
853 | 5d97d6dd | Michael Hanselmann | """
|
854 | 5d97d6dd | Michael Hanselmann | assert self.src_cbs is None |
855 | 5d97d6dd | Michael Hanselmann | assert dtp.src_export == ie
|
856 | 5d97d6dd | Michael Hanselmann | assert dtp.dest_import
|
857 | 5d97d6dd | Michael Hanselmann | |
858 | 5d97d6dd | Michael Hanselmann | if ie.success:
|
859 | 5d97d6dd | Michael Hanselmann | self.feedback_fn("%s finished sending data" % dtp.data.name) |
860 | 5d97d6dd | Michael Hanselmann | else:
|
861 | 5d97d6dd | Michael Hanselmann | self.feedback_fn("%s failed to send data: %s (recent output: %r)" % |
862 | 5d97d6dd | Michael Hanselmann | (dtp.data.name, ie.final_message, ie.recent_output)) |
863 | 5d97d6dd | Michael Hanselmann | |
864 | 5d97d6dd | Michael Hanselmann | dtp.RecordResult(ie.success) |
865 | 5d97d6dd | Michael Hanselmann | |
866 | 5d97d6dd | Michael Hanselmann | cb = dtp.data.finished_fn |
867 | 5d97d6dd | Michael Hanselmann | if cb:
|
868 | 5d97d6dd | Michael Hanselmann | cb() |
869 | 5d97d6dd | Michael Hanselmann | |
870 | 5d97d6dd | Michael Hanselmann | # TODO: Check whether sending SIGTERM right away is okay, maybe we should
|
871 | 5d97d6dd | Michael Hanselmann | # give the daemon a moment to sort things out
|
872 | 5d97d6dd | Michael Hanselmann | if dtp.dest_import and not ie.success: |
873 | 5d97d6dd | Michael Hanselmann | dtp.dest_import.Abort() |
874 | 5d97d6dd | Michael Hanselmann | |
875 | 5d97d6dd | Michael Hanselmann | |
876 | 5d97d6dd | Michael Hanselmann | class _TransferInstDestCb(_TransferInstCbBase): |
877 | 5d97d6dd | Michael Hanselmann | def ReportListening(self, ie, dtp): |
878 | 5d97d6dd | Michael Hanselmann | """Called when daemon started listening.
|
879 | 5d97d6dd | Michael Hanselmann |
|
880 | 5d97d6dd | Michael Hanselmann | """
|
881 | 5d97d6dd | Michael Hanselmann | assert self.src_cbs |
882 | 5d97d6dd | Michael Hanselmann | assert dtp.src_export is None |
883 | 5d97d6dd | Michael Hanselmann | assert dtp.dest_import
|
884 | 5d97d6dd | Michael Hanselmann | |
885 | 5d97d6dd | Michael Hanselmann | self.feedback_fn("%s is now listening, starting export" % dtp.data.name) |
886 | 5d97d6dd | Michael Hanselmann | |
887 | 5d97d6dd | Michael Hanselmann | # Start export on source node
|
888 | a5310c2a | Michael Hanselmann | de = DiskExport(self.lu, self.src_node, self.export_opts, |
889 | a5310c2a | Michael Hanselmann | self.dest_ip, ie.listen_port,
|
890 | eb630f50 | Michael Hanselmann | self.instance, dtp.data.src_io, dtp.data.src_ioargs,
|
891 | 5d97d6dd | Michael Hanselmann | self.timeouts, self.src_cbs, private=dtp) |
892 | 5d97d6dd | Michael Hanselmann | ie.loop.Add(de) |
893 | 5d97d6dd | Michael Hanselmann | |
894 | 5d97d6dd | Michael Hanselmann | dtp.src_export = de |
895 | 5d97d6dd | Michael Hanselmann | |
896 | 5d97d6dd | Michael Hanselmann | def ReportConnected(self, ie, dtp): |
897 | 5d97d6dd | Michael Hanselmann | """Called when a connection has been established.
|
898 | 5d97d6dd | Michael Hanselmann |
|
899 | 5d97d6dd | Michael Hanselmann | """
|
900 | 5d97d6dd | Michael Hanselmann | self.feedback_fn("%s is receiving data on %s" % |
901 | 5d97d6dd | Michael Hanselmann | (dtp.data.name, self.dest_node))
|
902 | 5d97d6dd | Michael Hanselmann | |
903 | 5d97d6dd | Michael Hanselmann | def ReportFinished(self, ie, dtp): |
904 | 5d97d6dd | Michael Hanselmann | """Called when a transfer has finished.
|
905 | 5d97d6dd | Michael Hanselmann |
|
906 | 5d97d6dd | Michael Hanselmann | """
|
907 | 5d97d6dd | Michael Hanselmann | if ie.success:
|
908 | 5d97d6dd | Michael Hanselmann | self.feedback_fn("%s finished receiving data" % dtp.data.name) |
909 | 5d97d6dd | Michael Hanselmann | else:
|
910 | 5d97d6dd | Michael Hanselmann | self.feedback_fn("%s failed to receive data: %s (recent output: %r)" % |
911 | 5d97d6dd | Michael Hanselmann | (dtp.data.name, ie.final_message, ie.recent_output)) |
912 | 5d97d6dd | Michael Hanselmann | |
913 | 5d97d6dd | Michael Hanselmann | dtp.RecordResult(ie.success) |
914 | 5d97d6dd | Michael Hanselmann | |
915 | 5d97d6dd | Michael Hanselmann | # TODO: Check whether sending SIGTERM right away is okay, maybe we should
|
916 | 5d97d6dd | Michael Hanselmann | # give the daemon a moment to sort things out
|
917 | 5d97d6dd | Michael Hanselmann | if dtp.src_export and not ie.success: |
918 | 5d97d6dd | Michael Hanselmann | dtp.src_export.Abort() |
919 | 5d97d6dd | Michael Hanselmann | |
920 | 5d97d6dd | Michael Hanselmann | |
921 | 5d97d6dd | Michael Hanselmann | class DiskTransfer(object): |
922 | 5d97d6dd | Michael Hanselmann | def __init__(self, name, src_io, src_ioargs, dest_io, dest_ioargs, |
923 | 5d97d6dd | Michael Hanselmann | finished_fn): |
924 | 5d97d6dd | Michael Hanselmann | """Initializes this class.
|
925 | 5d97d6dd | Michael Hanselmann |
|
926 | 5d97d6dd | Michael Hanselmann | @type name: string
|
927 | 5d97d6dd | Michael Hanselmann | @param name: User-visible name for this transfer (e.g. "disk/0")
|
928 | 5d97d6dd | Michael Hanselmann | @param src_io: Source I/O type
|
929 | 5d97d6dd | Michael Hanselmann | @param src_ioargs: Source I/O arguments
|
930 | 5d97d6dd | Michael Hanselmann | @param dest_io: Destination I/O type
|
931 | 5d97d6dd | Michael Hanselmann | @param dest_ioargs: Destination I/O arguments
|
932 | 5d97d6dd | Michael Hanselmann | @type finished_fn: callable
|
933 | 5d97d6dd | Michael Hanselmann | @param finished_fn: Function called once transfer has finished
|
934 | 5d97d6dd | Michael Hanselmann |
|
935 | 5d97d6dd | Michael Hanselmann | """
|
936 | 5d97d6dd | Michael Hanselmann | self.name = name
|
937 | 5d97d6dd | Michael Hanselmann | |
938 | 5d97d6dd | Michael Hanselmann | self.src_io = src_io
|
939 | 5d97d6dd | Michael Hanselmann | self.src_ioargs = src_ioargs
|
940 | 5d97d6dd | Michael Hanselmann | |
941 | 5d97d6dd | Michael Hanselmann | self.dest_io = dest_io
|
942 | 5d97d6dd | Michael Hanselmann | self.dest_ioargs = dest_ioargs
|
943 | 5d97d6dd | Michael Hanselmann | |
944 | 5d97d6dd | Michael Hanselmann | self.finished_fn = finished_fn
|
945 | 5d97d6dd | Michael Hanselmann | |
946 | 5d97d6dd | Michael Hanselmann | |
947 | 5d97d6dd | Michael Hanselmann | class _DiskTransferPrivate(object): |
948 | 5d97d6dd | Michael Hanselmann | def __init__(self, data, success): |
949 | 5d97d6dd | Michael Hanselmann | """Initializes this class.
|
950 | 5d97d6dd | Michael Hanselmann |
|
951 | 5d97d6dd | Michael Hanselmann | @type data: L{DiskTransfer}
|
952 | 5d97d6dd | Michael Hanselmann | @type success: bool
|
953 | 5d97d6dd | Michael Hanselmann |
|
954 | 5d97d6dd | Michael Hanselmann | """
|
955 | 5d97d6dd | Michael Hanselmann | self.data = data
|
956 | 5d97d6dd | Michael Hanselmann | |
957 | 5d97d6dd | Michael Hanselmann | self.src_export = None |
958 | 5d97d6dd | Michael Hanselmann | self.dest_import = None |
959 | 5d97d6dd | Michael Hanselmann | |
960 | 5d97d6dd | Michael Hanselmann | self.success = success
|
961 | 5d97d6dd | Michael Hanselmann | |
962 | 5d97d6dd | Michael Hanselmann | def RecordResult(self, success): |
963 | 5d97d6dd | Michael Hanselmann | """Updates the status.
|
964 | 5d97d6dd | Michael Hanselmann |
|
965 | 5d97d6dd | Michael Hanselmann | One failed part will cause the whole transfer to fail.
|
966 | 5d97d6dd | Michael Hanselmann |
|
967 | 5d97d6dd | Michael Hanselmann | """
|
968 | 5d97d6dd | Michael Hanselmann | self.success = self.success and success |
969 | 5d97d6dd | Michael Hanselmann | |
970 | 5d97d6dd | Michael Hanselmann | |
971 | 5d97d6dd | Michael Hanselmann | def TransferInstanceData(lu, feedback_fn, src_node, dest_node, dest_ip, |
972 | 5d97d6dd | Michael Hanselmann | instance, all_transfers): |
973 | 5d97d6dd | Michael Hanselmann | """Transfers an instance's data from one node to another.
|
974 | 5d97d6dd | Michael Hanselmann |
|
975 | 5d97d6dd | Michael Hanselmann | @param lu: Logical unit instance
|
976 | 5d97d6dd | Michael Hanselmann | @param feedback_fn: Feedback function
|
977 | 5d97d6dd | Michael Hanselmann | @type src_node: string
|
978 | 5d97d6dd | Michael Hanselmann | @param src_node: Source node name
|
979 | 5d97d6dd | Michael Hanselmann | @type dest_node: string
|
980 | 5d97d6dd | Michael Hanselmann | @param dest_node: Destination node name
|
981 | 5d97d6dd | Michael Hanselmann | @type dest_ip: string
|
982 | 5d97d6dd | Michael Hanselmann | @param dest_ip: IP address of destination node
|
983 | 5d97d6dd | Michael Hanselmann | @type instance: L{objects.Instance}
|
984 | 5d97d6dd | Michael Hanselmann | @param instance: Instance object
|
985 | 5d97d6dd | Michael Hanselmann | @type all_transfers: list of L{DiskTransfer} instances
|
986 | 5d97d6dd | Michael Hanselmann | @param all_transfers: List of all disk transfers to be made
|
987 | 5d97d6dd | Michael Hanselmann | @rtype: list
|
988 | 5d97d6dd | Michael Hanselmann | @return: List with a boolean (True=successful, False=failed) for success for
|
989 | 5d97d6dd | Michael Hanselmann | each transfer
|
990 | 5d97d6dd | Michael Hanselmann |
|
991 | 5d97d6dd | Michael Hanselmann | """
|
992 | a5310c2a | Michael Hanselmann | # Compress only if transfer is to another node
|
993 | a5310c2a | Michael Hanselmann | if src_node == dest_node:
|
994 | a5310c2a | Michael Hanselmann | compress = constants.IEC_NONE |
995 | a5310c2a | Michael Hanselmann | else:
|
996 | a5310c2a | Michael Hanselmann | compress = constants.IEC_GZIP |
997 | a5310c2a | Michael Hanselmann | |
998 | a5310c2a | Michael Hanselmann | logging.debug("Source node %s, destination node %s, compression '%s'",
|
999 | a5310c2a | Michael Hanselmann | src_node, dest_node, compress) |
1000 | a5310c2a | Michael Hanselmann | |
1001 | a5310c2a | Michael Hanselmann | opts = objects.ImportExportOptions(key_name=None, ca_pem=None, |
1002 | a5310c2a | Michael Hanselmann | compress=compress) |
1003 | a5310c2a | Michael Hanselmann | |
1004 | 5d97d6dd | Michael Hanselmann | timeouts = ImportExportTimeouts(constants.DISK_TRANSFER_CONNECT_TIMEOUT) |
1005 | 5d97d6dd | Michael Hanselmann | src_cbs = _TransferInstSourceCb(lu, feedback_fn, instance, timeouts, |
1006 | a5310c2a | Michael Hanselmann | src_node, None, dest_node, dest_ip, opts)
|
1007 | 5d97d6dd | Michael Hanselmann | dest_cbs = _TransferInstDestCb(lu, feedback_fn, instance, timeouts, |
1008 | a5310c2a | Michael Hanselmann | src_node, src_cbs, dest_node, dest_ip, opts) |
1009 | 5d97d6dd | Michael Hanselmann | |
1010 | 5d97d6dd | Michael Hanselmann | all_dtp = [] |
1011 | 5d97d6dd | Michael Hanselmann | |
1012 | 5d97d6dd | Michael Hanselmann | ieloop = ImportExportLoop(lu) |
1013 | 5d97d6dd | Michael Hanselmann | try:
|
1014 | 5d97d6dd | Michael Hanselmann | for transfer in all_transfers: |
1015 | 5d97d6dd | Michael Hanselmann | if transfer:
|
1016 | 5d97d6dd | Michael Hanselmann | feedback_fn("Exporting %s from %s to %s" %
|
1017 | 5d97d6dd | Michael Hanselmann | (transfer.name, src_node, dest_node)) |
1018 | 5d97d6dd | Michael Hanselmann | |
1019 | 5d97d6dd | Michael Hanselmann | dtp = _DiskTransferPrivate(transfer, True)
|
1020 | 5d97d6dd | Michael Hanselmann | |
1021 | eb630f50 | Michael Hanselmann | di = DiskImport(lu, dest_node, opts, instance, |
1022 | 5d97d6dd | Michael Hanselmann | transfer.dest_io, transfer.dest_ioargs, |
1023 | 5d97d6dd | Michael Hanselmann | timeouts, dest_cbs, private=dtp) |
1024 | 5d97d6dd | Michael Hanselmann | ieloop.Add(di) |
1025 | 5d97d6dd | Michael Hanselmann | |
1026 | 5d97d6dd | Michael Hanselmann | dtp.dest_import = di |
1027 | 5d97d6dd | Michael Hanselmann | else:
|
1028 | 5d97d6dd | Michael Hanselmann | dtp = _DiskTransferPrivate(None, False) |
1029 | 5d97d6dd | Michael Hanselmann | |
1030 | 5d97d6dd | Michael Hanselmann | all_dtp.append(dtp) |
1031 | 5d97d6dd | Michael Hanselmann | |
1032 | 5d97d6dd | Michael Hanselmann | ieloop.Run() |
1033 | 5d97d6dd | Michael Hanselmann | finally:
|
1034 | 5d97d6dd | Michael Hanselmann | ieloop.FinalizeAll() |
1035 | 5d97d6dd | Michael Hanselmann | |
1036 | 5d97d6dd | Michael Hanselmann | assert len(all_dtp) == len(all_transfers) |
1037 | 5d97d6dd | Michael Hanselmann | assert compat.all([(dtp.src_export is None or |
1038 | 5d97d6dd | Michael Hanselmann | dtp.src_export.success is not None) and |
1039 | 5d97d6dd | Michael Hanselmann | (dtp.dest_import is None or |
1040 | 5d97d6dd | Michael Hanselmann | dtp.dest_import.success is not None) |
1041 | 5d97d6dd | Michael Hanselmann | for dtp in all_dtp]), \ |
1042 | 5d97d6dd | Michael Hanselmann | "Not all imports/exports are finalized"
|
1043 | 5d97d6dd | Michael Hanselmann | |
1044 | 5d97d6dd | Michael Hanselmann | return [bool(dtp.success) for dtp in all_dtp] |
1045 | 387794f8 | Michael Hanselmann | |
1046 | 387794f8 | Michael Hanselmann | |
1047 | 4a96f1d1 | Michael Hanselmann | class _RemoteExportCb(ImportExportCbBase): |
1048 | 4a96f1d1 | Michael Hanselmann | def __init__(self, feedback_fn, disk_count): |
1049 | 4a96f1d1 | Michael Hanselmann | """Initializes this class.
|
1050 | 4a96f1d1 | Michael Hanselmann |
|
1051 | 4a96f1d1 | Michael Hanselmann | """
|
1052 | 4a96f1d1 | Michael Hanselmann | ImportExportCbBase.__init__(self)
|
1053 | 4a96f1d1 | Michael Hanselmann | self._feedback_fn = feedback_fn
|
1054 | 4a96f1d1 | Michael Hanselmann | self._dresults = [None] * disk_count |
1055 | 4a96f1d1 | Michael Hanselmann | |
1056 | 4a96f1d1 | Michael Hanselmann | @property
|
1057 | 4a96f1d1 | Michael Hanselmann | def disk_results(self): |
1058 | 4a96f1d1 | Michael Hanselmann | """Returns per-disk results.
|
1059 | 4a96f1d1 | Michael Hanselmann |
|
1060 | 4a96f1d1 | Michael Hanselmann | """
|
1061 | 4a96f1d1 | Michael Hanselmann | return self._dresults |
1062 | 4a96f1d1 | Michael Hanselmann | |
1063 | 4a96f1d1 | Michael Hanselmann | def ReportConnected(self, ie, private): |
1064 | 4a96f1d1 | Michael Hanselmann | """Called when a connection has been established.
|
1065 | 4a96f1d1 | Michael Hanselmann |
|
1066 | 4a96f1d1 | Michael Hanselmann | """
|
1067 | 4a96f1d1 | Michael Hanselmann | (idx, _) = private |
1068 | 4a96f1d1 | Michael Hanselmann | |
1069 | 4a96f1d1 | Michael Hanselmann | self._feedback_fn("Disk %s is now sending data" % idx) |
1070 | 4a96f1d1 | Michael Hanselmann | |
1071 | 1a2e7fe9 | Michael Hanselmann | def ReportProgress(self, ie, private): |
1072 | 1a2e7fe9 | Michael Hanselmann | """Called when new progress information should be reported.
|
1073 | 1a2e7fe9 | Michael Hanselmann |
|
1074 | 1a2e7fe9 | Michael Hanselmann | """
|
1075 | 1a2e7fe9 | Michael Hanselmann | (idx, _) = private |
1076 | 1a2e7fe9 | Michael Hanselmann | |
1077 | 1a2e7fe9 | Michael Hanselmann | progress = ie.progress |
1078 | 1a2e7fe9 | Michael Hanselmann | if not progress: |
1079 | 1a2e7fe9 | Michael Hanselmann | return
|
1080 | 1a2e7fe9 | Michael Hanselmann | |
1081 | 1a2e7fe9 | Michael Hanselmann | self._feedback_fn("Disk %s sent %s" % (idx, FormatProgress(progress))) |
1082 | 1a2e7fe9 | Michael Hanselmann | |
1083 | 4a96f1d1 | Michael Hanselmann | def ReportFinished(self, ie, private): |
1084 | 4a96f1d1 | Michael Hanselmann | """Called when a transfer has finished.
|
1085 | 4a96f1d1 | Michael Hanselmann |
|
1086 | 4a96f1d1 | Michael Hanselmann | """
|
1087 | 4a96f1d1 | Michael Hanselmann | (idx, finished_fn) = private |
1088 | 4a96f1d1 | Michael Hanselmann | |
1089 | 4a96f1d1 | Michael Hanselmann | if ie.success:
|
1090 | 4a96f1d1 | Michael Hanselmann | self._feedback_fn("Disk %s finished sending data" % idx) |
1091 | 4a96f1d1 | Michael Hanselmann | else:
|
1092 | 4a96f1d1 | Michael Hanselmann | self._feedback_fn("Disk %s failed to send data: %s (recent output: %r)" % |
1093 | 4a96f1d1 | Michael Hanselmann | (idx, ie.final_message, ie.recent_output)) |
1094 | 4a96f1d1 | Michael Hanselmann | |
1095 | 4a96f1d1 | Michael Hanselmann | self._dresults[idx] = bool(ie.success) |
1096 | 4a96f1d1 | Michael Hanselmann | |
1097 | 4a96f1d1 | Michael Hanselmann | if finished_fn:
|
1098 | 4a96f1d1 | Michael Hanselmann | finished_fn() |
1099 | 4a96f1d1 | Michael Hanselmann | |
1100 | 4a96f1d1 | Michael Hanselmann | |
1101 | 387794f8 | Michael Hanselmann | class ExportInstanceHelper: |
1102 | 387794f8 | Michael Hanselmann | def __init__(self, lu, feedback_fn, instance): |
1103 | 387794f8 | Michael Hanselmann | """Initializes this class.
|
1104 | 387794f8 | Michael Hanselmann |
|
1105 | 387794f8 | Michael Hanselmann | @param lu: Logical unit instance
|
1106 | 387794f8 | Michael Hanselmann | @param feedback_fn: Feedback function
|
1107 | 387794f8 | Michael Hanselmann | @type instance: L{objects.Instance}
|
1108 | 387794f8 | Michael Hanselmann | @param instance: Instance object
|
1109 | 387794f8 | Michael Hanselmann |
|
1110 | 387794f8 | Michael Hanselmann | """
|
1111 | 387794f8 | Michael Hanselmann | self._lu = lu
|
1112 | 387794f8 | Michael Hanselmann | self._feedback_fn = feedback_fn
|
1113 | 387794f8 | Michael Hanselmann | self._instance = instance
|
1114 | 387794f8 | Michael Hanselmann | |
1115 | 387794f8 | Michael Hanselmann | self._snap_disks = []
|
1116 | 387794f8 | Michael Hanselmann | self._removed_snaps = [False] * len(instance.disks) |
1117 | 387794f8 | Michael Hanselmann | |
1118 | 387794f8 | Michael Hanselmann | def CreateSnapshots(self): |
1119 | 387794f8 | Michael Hanselmann | """Creates an LVM snapshot for every disk of the instance.
|
1120 | 387794f8 | Michael Hanselmann |
|
1121 | 387794f8 | Michael Hanselmann | """
|
1122 | 387794f8 | Michael Hanselmann | assert not self._snap_disks |
1123 | 387794f8 | Michael Hanselmann | |
1124 | 387794f8 | Michael Hanselmann | instance = self._instance
|
1125 | 387794f8 | Michael Hanselmann | src_node = instance.primary_node |
1126 | 387794f8 | Michael Hanselmann | |
1127 | 387794f8 | Michael Hanselmann | vgname = self._lu.cfg.GetVGName()
|
1128 | 387794f8 | Michael Hanselmann | |
1129 | 387794f8 | Michael Hanselmann | for idx, disk in enumerate(instance.disks): |
1130 | 387794f8 | Michael Hanselmann | self._feedback_fn("Creating a snapshot of disk/%s on node %s" % |
1131 | 387794f8 | Michael Hanselmann | (idx, src_node)) |
1132 | 387794f8 | Michael Hanselmann | |
1133 | 387794f8 | Michael Hanselmann | # result.payload will be a snapshot of an lvm leaf of the one we
|
1134 | 387794f8 | Michael Hanselmann | # passed
|
1135 | 387794f8 | Michael Hanselmann | result = self._lu.rpc.call_blockdev_snapshot(src_node, disk)
|
1136 | 387794f8 | Michael Hanselmann | msg = result.fail_msg |
1137 | 387794f8 | Michael Hanselmann | if msg:
|
1138 | 387794f8 | Michael Hanselmann | self._lu.LogWarning("Could not snapshot disk/%s on node %s: %s", |
1139 | 387794f8 | Michael Hanselmann | idx, src_node, msg) |
1140 | 387794f8 | Michael Hanselmann | new_dev = False
|
1141 | 387794f8 | Michael Hanselmann | else:
|
1142 | 387794f8 | Michael Hanselmann | disk_id = (vgname, result.payload) |
1143 | 387794f8 | Michael Hanselmann | new_dev = objects.Disk(dev_type=constants.LD_LV, size=disk.size, |
1144 | 387794f8 | Michael Hanselmann | logical_id=disk_id, physical_id=disk_id, |
1145 | 387794f8 | Michael Hanselmann | iv_name=disk.iv_name) |
1146 | 387794f8 | Michael Hanselmann | |
1147 | 387794f8 | Michael Hanselmann | self._snap_disks.append(new_dev)
|
1148 | 387794f8 | Michael Hanselmann | |
1149 | 387794f8 | Michael Hanselmann | assert len(self._snap_disks) == len(instance.disks) |
1150 | 387794f8 | Michael Hanselmann | assert len(self._removed_snaps) == len(instance.disks) |
1151 | 387794f8 | Michael Hanselmann | |
1152 | 387794f8 | Michael Hanselmann | def _RemoveSnapshot(self, disk_index): |
1153 | 387794f8 | Michael Hanselmann | """Removes an LVM snapshot.
|
1154 | 387794f8 | Michael Hanselmann |
|
1155 | 387794f8 | Michael Hanselmann | @type disk_index: number
|
1156 | 387794f8 | Michael Hanselmann | @param disk_index: Index of the snapshot to be removed
|
1157 | 387794f8 | Michael Hanselmann |
|
1158 | 387794f8 | Michael Hanselmann | """
|
1159 | 387794f8 | Michael Hanselmann | disk = self._snap_disks[disk_index]
|
1160 | 387794f8 | Michael Hanselmann | if disk and not self._removed_snaps[disk_index]: |
1161 | 387794f8 | Michael Hanselmann | src_node = self._instance.primary_node
|
1162 | 387794f8 | Michael Hanselmann | |
1163 | 387794f8 | Michael Hanselmann | self._feedback_fn("Removing snapshot of disk/%s on node %s" % |
1164 | 387794f8 | Michael Hanselmann | (disk_index, src_node)) |
1165 | 387794f8 | Michael Hanselmann | |
1166 | 387794f8 | Michael Hanselmann | result = self._lu.rpc.call_blockdev_remove(src_node, disk)
|
1167 | 387794f8 | Michael Hanselmann | if result.fail_msg:
|
1168 | 387794f8 | Michael Hanselmann | self._lu.LogWarning("Could not remove snapshot for disk/%d from node" |
1169 | 387794f8 | Michael Hanselmann | " %s: %s", disk_index, src_node, result.fail_msg)
|
1170 | 387794f8 | Michael Hanselmann | else:
|
1171 | 387794f8 | Michael Hanselmann | self._removed_snaps[disk_index] = True |
1172 | 387794f8 | Michael Hanselmann | |
1173 | 387794f8 | Michael Hanselmann | def LocalExport(self, dest_node): |
1174 | 387794f8 | Michael Hanselmann | """Intra-cluster instance export.
|
1175 | 387794f8 | Michael Hanselmann |
|
1176 | 387794f8 | Michael Hanselmann | @type dest_node: L{objects.Node}
|
1177 | 387794f8 | Michael Hanselmann | @param dest_node: Destination node
|
1178 | 387794f8 | Michael Hanselmann |
|
1179 | 387794f8 | Michael Hanselmann | """
|
1180 | 387794f8 | Michael Hanselmann | instance = self._instance
|
1181 | 387794f8 | Michael Hanselmann | src_node = instance.primary_node |
1182 | 387794f8 | Michael Hanselmann | |
1183 | 387794f8 | Michael Hanselmann | assert len(self._snap_disks) == len(instance.disks) |
1184 | 387794f8 | Michael Hanselmann | |
1185 | 387794f8 | Michael Hanselmann | transfers = [] |
1186 | 387794f8 | Michael Hanselmann | |
1187 | 387794f8 | Michael Hanselmann | for idx, dev in enumerate(self._snap_disks): |
1188 | 387794f8 | Michael Hanselmann | if not dev: |
1189 | 387794f8 | Michael Hanselmann | transfers.append(None)
|
1190 | 387794f8 | Michael Hanselmann | continue
|
1191 | 387794f8 | Michael Hanselmann | |
1192 | 387794f8 | Michael Hanselmann | path = utils.PathJoin(constants.EXPORT_DIR, "%s.new" % instance.name,
|
1193 | 387794f8 | Michael Hanselmann | dev.physical_id[1])
|
1194 | 387794f8 | Michael Hanselmann | |
1195 | 387794f8 | Michael Hanselmann | finished_fn = compat.partial(self._TransferFinished, idx)
|
1196 | 387794f8 | Michael Hanselmann | |
1197 | 387794f8 | Michael Hanselmann | # FIXME: pass debug option from opcode to backend
|
1198 | 387794f8 | Michael Hanselmann | dt = DiskTransfer("snapshot/%s" % idx,
|
1199 | 387794f8 | Michael Hanselmann | constants.IEIO_SCRIPT, (dev, idx), |
1200 | 387794f8 | Michael Hanselmann | constants.IEIO_FILE, (path, ), |
1201 | 387794f8 | Michael Hanselmann | finished_fn) |
1202 | 387794f8 | Michael Hanselmann | transfers.append(dt) |
1203 | 387794f8 | Michael Hanselmann | |
1204 | 387794f8 | Michael Hanselmann | # Actually export data
|
1205 | 387794f8 | Michael Hanselmann | dresults = TransferInstanceData(self._lu, self._feedback_fn, |
1206 | 387794f8 | Michael Hanselmann | src_node, dest_node.name, |
1207 | 387794f8 | Michael Hanselmann | dest_node.secondary_ip, |
1208 | 387794f8 | Michael Hanselmann | instance, transfers) |
1209 | 387794f8 | Michael Hanselmann | |
1210 | 387794f8 | Michael Hanselmann | assert len(dresults) == len(instance.disks) |
1211 | 387794f8 | Michael Hanselmann | |
1212 | 387794f8 | Michael Hanselmann | self._feedback_fn("Finalizing export on %s" % dest_node.name) |
1213 | 387794f8 | Michael Hanselmann | result = self._lu.rpc.call_finalize_export(dest_node.name, instance,
|
1214 | 387794f8 | Michael Hanselmann | self._snap_disks)
|
1215 | 387794f8 | Michael Hanselmann | msg = result.fail_msg |
1216 | 387794f8 | Michael Hanselmann | fin_resu = not msg
|
1217 | 387794f8 | Michael Hanselmann | if msg:
|
1218 | 387794f8 | Michael Hanselmann | self._lu.LogWarning("Could not finalize export for instance %s" |
1219 | 387794f8 | Michael Hanselmann | " on node %s: %s", instance.name, dest_node.name, msg)
|
1220 | 387794f8 | Michael Hanselmann | |
1221 | 387794f8 | Michael Hanselmann | return (fin_resu, dresults)
|
1222 | 387794f8 | Michael Hanselmann | |
1223 | eb630f50 | Michael Hanselmann | def RemoteExport(self, opts, disk_info, timeouts): |
1224 | 4a96f1d1 | Michael Hanselmann | """Inter-cluster instance export.
|
1225 | 4a96f1d1 | Michael Hanselmann |
|
1226 | eb630f50 | Michael Hanselmann | @type opts: L{objects.ImportExportOptions}
|
1227 | eb630f50 | Michael Hanselmann | @param opts: Import/export daemon options
|
1228 | 4a96f1d1 | Michael Hanselmann | @type disk_info: list
|
1229 | 4a96f1d1 | Michael Hanselmann | @param disk_info: Per-disk destination information
|
1230 | 4a96f1d1 | Michael Hanselmann | @type timeouts: L{ImportExportTimeouts}
|
1231 | 4a96f1d1 | Michael Hanselmann | @param timeouts: Timeouts for this import
|
1232 | 4a96f1d1 | Michael Hanselmann |
|
1233 | 4a96f1d1 | Michael Hanselmann | """
|
1234 | 4a96f1d1 | Michael Hanselmann | instance = self._instance
|
1235 | 4a96f1d1 | Michael Hanselmann | |
1236 | 4a96f1d1 | Michael Hanselmann | assert len(disk_info) == len(instance.disks) |
1237 | 4a96f1d1 | Michael Hanselmann | |
1238 | 4a96f1d1 | Michael Hanselmann | cbs = _RemoteExportCb(self._feedback_fn, len(instance.disks)) |
1239 | 4a96f1d1 | Michael Hanselmann | |
1240 | 4a96f1d1 | Michael Hanselmann | ieloop = ImportExportLoop(self._lu)
|
1241 | 4a96f1d1 | Michael Hanselmann | try:
|
1242 | acd65a16 | Michael Hanselmann | for idx, (dev, (host, port)) in enumerate(zip(instance.disks, |
1243 | acd65a16 | Michael Hanselmann | disk_info)): |
1244 | 4a96f1d1 | Michael Hanselmann | self._feedback_fn("Sending disk %s to %s:%s" % (idx, host, port)) |
1245 | 4a96f1d1 | Michael Hanselmann | finished_fn = compat.partial(self._TransferFinished, idx)
|
1246 | 4a96f1d1 | Michael Hanselmann | ieloop.Add(DiskExport(self._lu, instance.primary_node,
|
1247 | eb630f50 | Michael Hanselmann | opts, host, port, instance, |
1248 | 4a96f1d1 | Michael Hanselmann | constants.IEIO_SCRIPT, (dev, idx), |
1249 | 4a96f1d1 | Michael Hanselmann | timeouts, cbs, private=(idx, finished_fn))) |
1250 | 4a96f1d1 | Michael Hanselmann | |
1251 | 4a96f1d1 | Michael Hanselmann | ieloop.Run() |
1252 | 4a96f1d1 | Michael Hanselmann | finally:
|
1253 | 4a96f1d1 | Michael Hanselmann | ieloop.FinalizeAll() |
1254 | 4a96f1d1 | Michael Hanselmann | |
1255 | 4a96f1d1 | Michael Hanselmann | return (True, cbs.disk_results) |
1256 | 4a96f1d1 | Michael Hanselmann | |
1257 | 387794f8 | Michael Hanselmann | def _TransferFinished(self, idx): |
1258 | 387794f8 | Michael Hanselmann | """Called once a transfer has finished.
|
1259 | 387794f8 | Michael Hanselmann |
|
1260 | 387794f8 | Michael Hanselmann | @type idx: number
|
1261 | 387794f8 | Michael Hanselmann | @param idx: Disk index
|
1262 | 387794f8 | Michael Hanselmann |
|
1263 | 387794f8 | Michael Hanselmann | """
|
1264 | 387794f8 | Michael Hanselmann | logging.debug("Transfer %s finished", idx)
|
1265 | 387794f8 | Michael Hanselmann | self._RemoveSnapshot(idx)
|
1266 | 387794f8 | Michael Hanselmann | |
1267 | 387794f8 | Michael Hanselmann | def Cleanup(self): |
1268 | 387794f8 | Michael Hanselmann | """Remove all snapshots.
|
1269 | 387794f8 | Michael Hanselmann |
|
1270 | 387794f8 | Michael Hanselmann | """
|
1271 | 387794f8 | Michael Hanselmann | assert len(self._removed_snaps) == len(self._instance.disks) |
1272 | 387794f8 | Michael Hanselmann | for idx in range(len(self._instance.disks)): |
1273 | 387794f8 | Michael Hanselmann | self._RemoveSnapshot(idx)
|
1274 | 1410fa8d | Michael Hanselmann | |
1275 | 1410fa8d | Michael Hanselmann | |
1276 | 9bf56d77 | Michael Hanselmann | class _RemoteImportCb(ImportExportCbBase): |
1277 | 9bf56d77 | Michael Hanselmann | def __init__(self, feedback_fn, cds, x509_cert_pem, disk_count, |
1278 | 9bf56d77 | Michael Hanselmann | external_address): |
1279 | 9bf56d77 | Michael Hanselmann | """Initializes this class.
|
1280 | 9bf56d77 | Michael Hanselmann |
|
1281 | 9bf56d77 | Michael Hanselmann | @type cds: string
|
1282 | 9bf56d77 | Michael Hanselmann | @param cds: Cluster domain secret
|
1283 | 9bf56d77 | Michael Hanselmann | @type x509_cert_pem: string
|
1284 | 9bf56d77 | Michael Hanselmann | @param x509_cert_pem: CA used for signing import key
|
1285 | 9bf56d77 | Michael Hanselmann | @type disk_count: number
|
1286 | 9bf56d77 | Michael Hanselmann | @param disk_count: Number of disks
|
1287 | 9bf56d77 | Michael Hanselmann | @type external_address: string
|
1288 | 9bf56d77 | Michael Hanselmann | @param external_address: External address of destination node
|
1289 | 9bf56d77 | Michael Hanselmann |
|
1290 | 9bf56d77 | Michael Hanselmann | """
|
1291 | 9bf56d77 | Michael Hanselmann | ImportExportCbBase.__init__(self)
|
1292 | 9bf56d77 | Michael Hanselmann | self._feedback_fn = feedback_fn
|
1293 | 9bf56d77 | Michael Hanselmann | self._cds = cds
|
1294 | 9bf56d77 | Michael Hanselmann | self._x509_cert_pem = x509_cert_pem
|
1295 | 9bf56d77 | Michael Hanselmann | self._disk_count = disk_count
|
1296 | 9bf56d77 | Michael Hanselmann | self._external_address = external_address
|
1297 | 9bf56d77 | Michael Hanselmann | |
1298 | 9bf56d77 | Michael Hanselmann | self._dresults = [None] * disk_count |
1299 | 9bf56d77 | Michael Hanselmann | self._daemon_port = [None] * disk_count |
1300 | 9bf56d77 | Michael Hanselmann | |
1301 | 9bf56d77 | Michael Hanselmann | self._salt = utils.GenerateSecret(8) |
1302 | 9bf56d77 | Michael Hanselmann | |
1303 | 9bf56d77 | Michael Hanselmann | @property
|
1304 | 9bf56d77 | Michael Hanselmann | def disk_results(self): |
1305 | 9bf56d77 | Michael Hanselmann | """Returns per-disk results.
|
1306 | 9bf56d77 | Michael Hanselmann |
|
1307 | 9bf56d77 | Michael Hanselmann | """
|
1308 | 9bf56d77 | Michael Hanselmann | return self._dresults |
1309 | 9bf56d77 | Michael Hanselmann | |
1310 | 9bf56d77 | Michael Hanselmann | def _CheckAllListening(self): |
1311 | 9bf56d77 | Michael Hanselmann | """Checks whether all daemons are listening.
|
1312 | 9bf56d77 | Michael Hanselmann |
|
1313 | 9bf56d77 | Michael Hanselmann | If all daemons are listening, the information is sent to the client.
|
1314 | 9bf56d77 | Michael Hanselmann |
|
1315 | 9bf56d77 | Michael Hanselmann | """
|
1316 | 9bf56d77 | Michael Hanselmann | if not compat.all(dp is not None for dp in self._daemon_port): |
1317 | 9bf56d77 | Michael Hanselmann | return
|
1318 | 9bf56d77 | Michael Hanselmann | |
1319 | 9bf56d77 | Michael Hanselmann | host = self._external_address
|
1320 | 9bf56d77 | Michael Hanselmann | |
1321 | 9bf56d77 | Michael Hanselmann | disks = [] |
1322 | 9bf56d77 | Michael Hanselmann | for idx, port in enumerate(self._daemon_port): |
1323 | 9bf56d77 | Michael Hanselmann | disks.append(ComputeRemoteImportDiskInfo(self._cds, self._salt, |
1324 | 9bf56d77 | Michael Hanselmann | idx, host, port)) |
1325 | 9bf56d77 | Michael Hanselmann | |
1326 | 9bf56d77 | Michael Hanselmann | assert len(disks) == self._disk_count |
1327 | 9bf56d77 | Michael Hanselmann | |
1328 | 9bf56d77 | Michael Hanselmann | self._feedback_fn(constants.ELOG_REMOTE_IMPORT, {
|
1329 | 9bf56d77 | Michael Hanselmann | "disks": disks,
|
1330 | 9bf56d77 | Michael Hanselmann | "x509_ca": self._x509_cert_pem, |
1331 | 9bf56d77 | Michael Hanselmann | }) |
1332 | 9bf56d77 | Michael Hanselmann | |
1333 | 9bf56d77 | Michael Hanselmann | def ReportListening(self, ie, private): |
1334 | 9bf56d77 | Michael Hanselmann | """Called when daemon started listening.
|
1335 | 9bf56d77 | Michael Hanselmann |
|
1336 | 9bf56d77 | Michael Hanselmann | """
|
1337 | 9bf56d77 | Michael Hanselmann | (idx, ) = private |
1338 | 9bf56d77 | Michael Hanselmann | |
1339 | 9bf56d77 | Michael Hanselmann | self._feedback_fn("Disk %s is now listening" % idx) |
1340 | 9bf56d77 | Michael Hanselmann | |
1341 | 9bf56d77 | Michael Hanselmann | assert self._daemon_port[idx] is None |
1342 | 9bf56d77 | Michael Hanselmann | |
1343 | 9bf56d77 | Michael Hanselmann | self._daemon_port[idx] = ie.listen_port
|
1344 | 9bf56d77 | Michael Hanselmann | |
1345 | 9bf56d77 | Michael Hanselmann | self._CheckAllListening()
|
1346 | 9bf56d77 | Michael Hanselmann | |
1347 | 9bf56d77 | Michael Hanselmann | def ReportConnected(self, ie, private): |
1348 | 9bf56d77 | Michael Hanselmann | """Called when a connection has been established.
|
1349 | 9bf56d77 | Michael Hanselmann |
|
1350 | 9bf56d77 | Michael Hanselmann | """
|
1351 | 9bf56d77 | Michael Hanselmann | (idx, ) = private |
1352 | 9bf56d77 | Michael Hanselmann | |
1353 | 9bf56d77 | Michael Hanselmann | self._feedback_fn("Disk %s is now receiving data" % idx) |
1354 | 9bf56d77 | Michael Hanselmann | |
1355 | 9bf56d77 | Michael Hanselmann | def ReportFinished(self, ie, private): |
1356 | 9bf56d77 | Michael Hanselmann | """Called when a transfer has finished.
|
1357 | 9bf56d77 | Michael Hanselmann |
|
1358 | 9bf56d77 | Michael Hanselmann | """
|
1359 | 9bf56d77 | Michael Hanselmann | (idx, ) = private |
1360 | 9bf56d77 | Michael Hanselmann | |
1361 | 9bf56d77 | Michael Hanselmann | # Daemon is certainly no longer listening
|
1362 | 9bf56d77 | Michael Hanselmann | self._daemon_port[idx] = None |
1363 | 9bf56d77 | Michael Hanselmann | |
1364 | 9bf56d77 | Michael Hanselmann | if ie.success:
|
1365 | 9bf56d77 | Michael Hanselmann | self._feedback_fn("Disk %s finished receiving data" % idx) |
1366 | 9bf56d77 | Michael Hanselmann | else:
|
1367 | 9bf56d77 | Michael Hanselmann | self._feedback_fn(("Disk %s failed to receive data: %s" |
1368 | 9bf56d77 | Michael Hanselmann | " (recent output: %r)") %
|
1369 | 9bf56d77 | Michael Hanselmann | (idx, ie.final_message, ie.recent_output)) |
1370 | 9bf56d77 | Michael Hanselmann | |
1371 | 9bf56d77 | Michael Hanselmann | self._dresults[idx] = bool(ie.success) |
1372 | 9bf56d77 | Michael Hanselmann | |
1373 | 9bf56d77 | Michael Hanselmann | |
1374 | 9bf56d77 | Michael Hanselmann | def RemoteImport(lu, feedback_fn, instance, source_x509_ca, cds, timeouts): |
1375 | 9bf56d77 | Michael Hanselmann | """Imports an instance from another cluster.
|
1376 | 9bf56d77 | Michael Hanselmann |
|
1377 | 9bf56d77 | Michael Hanselmann | @param lu: Logical unit instance
|
1378 | 9bf56d77 | Michael Hanselmann | @param feedback_fn: Feedback function
|
1379 | 9bf56d77 | Michael Hanselmann | @type instance: L{objects.Instance}
|
1380 | 9bf56d77 | Michael Hanselmann | @param instance: Instance object
|
1381 | 9bf56d77 | Michael Hanselmann | @type source_x509_ca: OpenSSL.crypto.X509
|
1382 | 9bf56d77 | Michael Hanselmann | @param source_x509_ca: Import source's X509 CA
|
1383 | 9bf56d77 | Michael Hanselmann | @type cds: string
|
1384 | 9bf56d77 | Michael Hanselmann | @param cds: Cluster domain secret
|
1385 | 9bf56d77 | Michael Hanselmann | @type timeouts: L{ImportExportTimeouts}
|
1386 | 9bf56d77 | Michael Hanselmann | @param timeouts: Timeouts for this import
|
1387 | 9bf56d77 | Michael Hanselmann |
|
1388 | 9bf56d77 | Michael Hanselmann | """
|
1389 | 9bf56d77 | Michael Hanselmann | source_ca_pem = OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM, |
1390 | 9bf56d77 | Michael Hanselmann | source_x509_ca) |
1391 | 9bf56d77 | Michael Hanselmann | |
1392 | 9bf56d77 | Michael Hanselmann | # Create crypto key
|
1393 | 9bf56d77 | Michael Hanselmann | result = lu.rpc.call_x509_cert_create(instance.primary_node, |
1394 | 9bf56d77 | Michael Hanselmann | constants.RIE_CERT_VALIDITY) |
1395 | 9bf56d77 | Michael Hanselmann | result.Raise("Can't create X509 key and certificate on %s" % result.node)
|
1396 | 9bf56d77 | Michael Hanselmann | |
1397 | 9bf56d77 | Michael Hanselmann | (x509_key_name, x509_cert_pem) = result.payload |
1398 | 9bf56d77 | Michael Hanselmann | try:
|
1399 | 9bf56d77 | Michael Hanselmann | # Load certificate
|
1400 | 9bf56d77 | Michael Hanselmann | x509_cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, |
1401 | 9bf56d77 | Michael Hanselmann | x509_cert_pem) |
1402 | 9bf56d77 | Michael Hanselmann | |
1403 | eb630f50 | Michael Hanselmann | # Import daemon options
|
1404 | eb630f50 | Michael Hanselmann | opts = objects.ImportExportOptions(key_name=x509_key_name, |
1405 | eb630f50 | Michael Hanselmann | ca_pem=source_ca_pem) |
1406 | eb630f50 | Michael Hanselmann | |
1407 | 9bf56d77 | Michael Hanselmann | # Sign certificate
|
1408 | 9bf56d77 | Michael Hanselmann | signed_x509_cert_pem = \ |
1409 | 9bf56d77 | Michael Hanselmann | utils.SignX509Certificate(x509_cert, cds, utils.GenerateSecret(8))
|
1410 | 9bf56d77 | Michael Hanselmann | |
1411 | 9bf56d77 | Michael Hanselmann | cbs = _RemoteImportCb(feedback_fn, cds, signed_x509_cert_pem, |
1412 | 9bf56d77 | Michael Hanselmann | len(instance.disks), instance.primary_node)
|
1413 | 9bf56d77 | Michael Hanselmann | |
1414 | 9bf56d77 | Michael Hanselmann | ieloop = ImportExportLoop(lu) |
1415 | 9bf56d77 | Michael Hanselmann | try:
|
1416 | 9bf56d77 | Michael Hanselmann | for idx, dev in enumerate(instance.disks): |
1417 | eb630f50 | Michael Hanselmann | ieloop.Add(DiskImport(lu, instance.primary_node, opts, instance, |
1418 | 9bf56d77 | Michael Hanselmann | constants.IEIO_SCRIPT, (dev, idx), |
1419 | 9bf56d77 | Michael Hanselmann | timeouts, cbs, private=(idx, ))) |
1420 | 9bf56d77 | Michael Hanselmann | |
1421 | 9bf56d77 | Michael Hanselmann | ieloop.Run() |
1422 | 9bf56d77 | Michael Hanselmann | finally:
|
1423 | 9bf56d77 | Michael Hanselmann | ieloop.FinalizeAll() |
1424 | 9bf56d77 | Michael Hanselmann | finally:
|
1425 | 9bf56d77 | Michael Hanselmann | # Remove crypto key and certificate
|
1426 | 9bf56d77 | Michael Hanselmann | result = lu.rpc.call_x509_cert_remove(instance.primary_node, x509_key_name) |
1427 | 9bf56d77 | Michael Hanselmann | result.Raise("Can't remove X509 key and certificate on %s" % result.node)
|
1428 | 9bf56d77 | Michael Hanselmann | |
1429 | 9bf56d77 | Michael Hanselmann | return cbs.disk_results
|
1430 | 9bf56d77 | Michael Hanselmann | |
1431 | 9bf56d77 | Michael Hanselmann | |
1432 | 1410fa8d | Michael Hanselmann | def _GetImportExportHandshakeMessage(version): |
1433 | 1410fa8d | Michael Hanselmann | """Returns the handshake message for a RIE protocol version.
|
1434 | 1410fa8d | Michael Hanselmann |
|
1435 | 1410fa8d | Michael Hanselmann | @type version: number
|
1436 | 1410fa8d | Michael Hanselmann |
|
1437 | 1410fa8d | Michael Hanselmann | """
|
1438 | 1410fa8d | Michael Hanselmann | return "%s:%s" % (version, constants.RIE_HANDSHAKE) |
1439 | 1410fa8d | Michael Hanselmann | |
1440 | 1410fa8d | Michael Hanselmann | |
1441 | 1410fa8d | Michael Hanselmann | def ComputeRemoteExportHandshake(cds): |
1442 | 1410fa8d | Michael Hanselmann | """Computes the remote import/export handshake.
|
1443 | 1410fa8d | Michael Hanselmann |
|
1444 | 1410fa8d | Michael Hanselmann | @type cds: string
|
1445 | 1410fa8d | Michael Hanselmann | @param cds: Cluster domain secret
|
1446 | 1410fa8d | Michael Hanselmann |
|
1447 | 1410fa8d | Michael Hanselmann | """
|
1448 | 1410fa8d | Michael Hanselmann | salt = utils.GenerateSecret(8)
|
1449 | 1410fa8d | Michael Hanselmann | msg = _GetImportExportHandshakeMessage(constants.RIE_VERSION) |
1450 | 1410fa8d | Michael Hanselmann | return (constants.RIE_VERSION, utils.Sha1Hmac(cds, msg, salt=salt), salt)
|
1451 | 1410fa8d | Michael Hanselmann | |
1452 | 1410fa8d | Michael Hanselmann | |
1453 | 1410fa8d | Michael Hanselmann | def CheckRemoteExportHandshake(cds, handshake): |
1454 | 1410fa8d | Michael Hanselmann | """Checks the handshake of a remote import/export.
|
1455 | 1410fa8d | Michael Hanselmann |
|
1456 | 1410fa8d | Michael Hanselmann | @type cds: string
|
1457 | 1410fa8d | Michael Hanselmann | @param cds: Cluster domain secret
|
1458 | 1410fa8d | Michael Hanselmann | @type handshake: sequence
|
1459 | 1410fa8d | Michael Hanselmann | @param handshake: Handshake sent by remote peer
|
1460 | 1410fa8d | Michael Hanselmann |
|
1461 | 1410fa8d | Michael Hanselmann | """
|
1462 | 1410fa8d | Michael Hanselmann | try:
|
1463 | 1410fa8d | Michael Hanselmann | (version, hmac_digest, hmac_salt) = handshake |
1464 | 1410fa8d | Michael Hanselmann | except (TypeError, ValueError), err: |
1465 | 1410fa8d | Michael Hanselmann | return "Invalid data: %s" % err |
1466 | 1410fa8d | Michael Hanselmann | |
1467 | 1410fa8d | Michael Hanselmann | if not utils.VerifySha1Hmac(cds, _GetImportExportHandshakeMessage(version), |
1468 | 1410fa8d | Michael Hanselmann | hmac_digest, salt=hmac_salt): |
1469 | 1410fa8d | Michael Hanselmann | return "Hash didn't match, clusters don't share the same domain secret" |
1470 | 1410fa8d | Michael Hanselmann | |
1471 | 1410fa8d | Michael Hanselmann | if version != constants.RIE_VERSION:
|
1472 | 1410fa8d | Michael Hanselmann | return ("Clusters don't have the same remote import/export protocol" |
1473 | 1410fa8d | Michael Hanselmann | " (local=%s, remote=%s)" %
|
1474 | 1410fa8d | Michael Hanselmann | (constants.RIE_VERSION, version)) |
1475 | 1410fa8d | Michael Hanselmann | |
1476 | 1410fa8d | Michael Hanselmann | return None |
1477 | 4a96f1d1 | Michael Hanselmann | |
1478 | 4a96f1d1 | Michael Hanselmann | |
1479 | 4a96f1d1 | Michael Hanselmann | def _GetRieDiskInfoMessage(disk_index, host, port): |
1480 | 4a96f1d1 | Michael Hanselmann | """Returns the hashed text for import/export disk information.
|
1481 | 4a96f1d1 | Michael Hanselmann |
|
1482 | 4a96f1d1 | Michael Hanselmann | @type disk_index: number
|
1483 | 4a96f1d1 | Michael Hanselmann | @param disk_index: Index of disk (included in hash)
|
1484 | 4a96f1d1 | Michael Hanselmann | @type host: string
|
1485 | 4a96f1d1 | Michael Hanselmann | @param host: Hostname
|
1486 | 4a96f1d1 | Michael Hanselmann | @type port: number
|
1487 | 4a96f1d1 | Michael Hanselmann | @param port: Daemon port
|
1488 | 4a96f1d1 | Michael Hanselmann |
|
1489 | 4a96f1d1 | Michael Hanselmann | """
|
1490 | 4a96f1d1 | Michael Hanselmann | return "%s:%s:%s" % (disk_index, host, port) |
1491 | 4a96f1d1 | Michael Hanselmann | |
1492 | 4a96f1d1 | Michael Hanselmann | |
1493 | 4a96f1d1 | Michael Hanselmann | def CheckRemoteExportDiskInfo(cds, disk_index, disk_info): |
1494 | 4a96f1d1 | Michael Hanselmann | """Verifies received disk information for an export.
|
1495 | 4a96f1d1 | Michael Hanselmann |
|
1496 | 4a96f1d1 | Michael Hanselmann | @type cds: string
|
1497 | 4a96f1d1 | Michael Hanselmann | @param cds: Cluster domain secret
|
1498 | 4a96f1d1 | Michael Hanselmann | @type disk_index: number
|
1499 | 4a96f1d1 | Michael Hanselmann | @param disk_index: Index of disk (included in hash)
|
1500 | 4a96f1d1 | Michael Hanselmann | @type disk_info: sequence
|
1501 | 4a96f1d1 | Michael Hanselmann | @param disk_info: Disk information sent by remote peer
|
1502 | 4a96f1d1 | Michael Hanselmann |
|
1503 | 4a96f1d1 | Michael Hanselmann | """
|
1504 | 4a96f1d1 | Michael Hanselmann | try:
|
1505 | 4a96f1d1 | Michael Hanselmann | (host, port, hmac_digest, hmac_salt) = disk_info |
1506 | 4a96f1d1 | Michael Hanselmann | except (TypeError, ValueError), err: |
1507 | 4a96f1d1 | Michael Hanselmann | raise errors.GenericError("Invalid data: %s" % err) |
1508 | 4a96f1d1 | Michael Hanselmann | |
1509 | 4a96f1d1 | Michael Hanselmann | if not (host and port): |
1510 | 4a96f1d1 | Michael Hanselmann | raise errors.GenericError("Missing destination host or port") |
1511 | 4a96f1d1 | Michael Hanselmann | |
1512 | 4a96f1d1 | Michael Hanselmann | msg = _GetRieDiskInfoMessage(disk_index, host, port) |
1513 | 4a96f1d1 | Michael Hanselmann | |
1514 | 4a96f1d1 | Michael Hanselmann | if not utils.VerifySha1Hmac(cds, msg, hmac_digest, salt=hmac_salt): |
1515 | 4a96f1d1 | Michael Hanselmann | raise errors.GenericError("HMAC is wrong") |
1516 | 4a96f1d1 | Michael Hanselmann | |
1517 | acd65a16 | Michael Hanselmann | return (utils.HostInfo.NormalizeName(host),
|
1518 | acd65a16 | Michael Hanselmann | utils.ValidateServiceName(port)) |
1519 | 4a96f1d1 | Michael Hanselmann | |
1520 | 4a96f1d1 | Michael Hanselmann | |
1521 | 4a96f1d1 | Michael Hanselmann | def ComputeRemoteImportDiskInfo(cds, salt, disk_index, host, port): |
1522 | 4a96f1d1 | Michael Hanselmann | """Computes the signed disk information for a remote import.
|
1523 | 4a96f1d1 | Michael Hanselmann |
|
1524 | 4a96f1d1 | Michael Hanselmann | @type cds: string
|
1525 | 4a96f1d1 | Michael Hanselmann | @param cds: Cluster domain secret
|
1526 | 4a96f1d1 | Michael Hanselmann | @type salt: string
|
1527 | 4a96f1d1 | Michael Hanselmann | @param salt: HMAC salt
|
1528 | 4a96f1d1 | Michael Hanselmann | @type disk_index: number
|
1529 | 4a96f1d1 | Michael Hanselmann | @param disk_index: Index of disk (included in hash)
|
1530 | 4a96f1d1 | Michael Hanselmann | @type host: string
|
1531 | 4a96f1d1 | Michael Hanselmann | @param host: Hostname
|
1532 | 4a96f1d1 | Michael Hanselmann | @type port: number
|
1533 | 4a96f1d1 | Michael Hanselmann | @param port: Daemon port
|
1534 | 4a96f1d1 | Michael Hanselmann |
|
1535 | 4a96f1d1 | Michael Hanselmann | """
|
1536 | 4a96f1d1 | Michael Hanselmann | msg = _GetRieDiskInfoMessage(disk_index, host, port) |
1537 | 4a96f1d1 | Michael Hanselmann | hmac_digest = utils.Sha1Hmac(cds, msg, salt=salt) |
1538 | 4a96f1d1 | Michael Hanselmann | return (host, port, hmac_digest, salt) |