root / lib / server / masterd.py @ be9150ea
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1 | 69cf3abd | Michael Hanselmann | #
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2 | ffeffa1d | Iustin Pop | #
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3 | ffeffa1d | Iustin Pop | |
4 | 83c046a2 | Iustin Pop | # Copyright (C) 2006, 2007, 2010, 2011, 2012 Google Inc.
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5 | ffeffa1d | Iustin Pop | #
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6 | ffeffa1d | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | ffeffa1d | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | ffeffa1d | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | ffeffa1d | Iustin Pop | # (at your option) any later version.
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10 | ffeffa1d | Iustin Pop | #
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11 | ffeffa1d | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | ffeffa1d | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | ffeffa1d | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | ffeffa1d | Iustin Pop | # General Public License for more details.
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15 | ffeffa1d | Iustin Pop | #
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16 | ffeffa1d | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | ffeffa1d | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | ffeffa1d | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | ffeffa1d | Iustin Pop | # 02110-1301, USA.
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20 | ffeffa1d | Iustin Pop | |
21 | ffeffa1d | Iustin Pop | |
22 | ffeffa1d | Iustin Pop | """Master daemon program.
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23 | ffeffa1d | Iustin Pop |
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24 | ffeffa1d | Iustin Pop | Some classes deviates from the standard style guide since the
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25 | ffeffa1d | Iustin Pop | inheritance from parent classes requires it.
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26 | ffeffa1d | Iustin Pop |
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27 | ffeffa1d | Iustin Pop | """
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28 | ffeffa1d | Iustin Pop | |
29 | b459a848 | Andrea Spadaccini | # pylint: disable=C0103
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30 | 7260cfbe | Iustin Pop | # C0103: Invalid name ganeti-masterd
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31 | ffeffa1d | Iustin Pop | |
32 | bbfd0568 | René Nussbaumer | import grp |
33 | bbfd0568 | René Nussbaumer | import os |
34 | bbfd0568 | René Nussbaumer | import pwd |
35 | c1f2901b | Iustin Pop | import sys |
36 | cdd7f900 | Guido Trotter | import socket |
37 | ffeffa1d | Iustin Pop | import time |
38 | bbfd0568 | René Nussbaumer | import tempfile |
39 | 96cb3986 | Michael Hanselmann | import logging |
40 | ffeffa1d | Iustin Pop | |
41 | c1f2901b | Iustin Pop | from optparse import OptionParser |
42 | ffeffa1d | Iustin Pop | |
43 | 39dcf2ef | Guido Trotter | from ganeti import config |
44 | ffeffa1d | Iustin Pop | from ganeti import constants |
45 | 04ccf5e9 | Guido Trotter | from ganeti import daemon |
46 | ffeffa1d | Iustin Pop | from ganeti import mcpu |
47 | ffeffa1d | Iustin Pop | from ganeti import opcodes |
48 | ffeffa1d | Iustin Pop | from ganeti import jqueue |
49 | 39dcf2ef | Guido Trotter | from ganeti import locking |
50 | ffeffa1d | Iustin Pop | from ganeti import luxi |
51 | ffeffa1d | Iustin Pop | from ganeti import utils |
52 | c1f2901b | Iustin Pop | from ganeti import errors |
53 | c1f2901b | Iustin Pop | from ganeti import ssconf |
54 | 23e50d39 | Michael Hanselmann | from ganeti import workerpool |
55 | b1b6ea87 | Iustin Pop | from ganeti import rpc |
56 | d7cdb55d | Iustin Pop | from ganeti import bootstrap |
57 | a744b676 | Manuel Franceschini | from ganeti import netutils |
58 | 28b71a76 | Michael Hanselmann | from ganeti import objects |
59 | 24d16f76 | Michael Hanselmann | from ganeti import query |
60 | a20e4768 | Michael Hanselmann | from ganeti import runtime |
61 | a5ce2ea2 | Michael Hanselmann | from ganeti import pathutils |
62 | 7c4bd156 | Michael Hanselmann | from ganeti import ht |
63 | c1f2901b | Iustin Pop | |
64 | c1f2901b | Iustin Pop | |
65 | 23e50d39 | Michael Hanselmann | CLIENT_REQUEST_WORKERS = 16
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66 | 23e50d39 | Michael Hanselmann | |
67 | c1f2901b | Iustin Pop | EXIT_NOTMASTER = constants.EXIT_NOTMASTER |
68 | c1f2901b | Iustin Pop | EXIT_NODESETUP_ERROR = constants.EXIT_NODESETUP_ERROR |
69 | ffeffa1d | Iustin Pop | |
70 | ffeffa1d | Iustin Pop | |
71 | 4c91d2ad | Iustin Pop | def _LogNewJob(status, info, ops): |
72 | 4c91d2ad | Iustin Pop | """Log information about a recently submitted job.
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73 | 4c91d2ad | Iustin Pop |
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74 | 4c91d2ad | Iustin Pop | """
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75 | 78fcfd43 | Michael Hanselmann | op_summary = utils.CommaJoin(op.Summary() for op in ops) |
76 | 78fcfd43 | Michael Hanselmann | |
77 | 4c91d2ad | Iustin Pop | if status:
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78 | 78fcfd43 | Michael Hanselmann | logging.info("New job with id %s, summary: %s", info, op_summary)
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79 | 4c91d2ad | Iustin Pop | else:
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80 | 4c91d2ad | Iustin Pop | logging.info("Failed to submit job, reason: '%s', summary: %s",
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81 | 78fcfd43 | Michael Hanselmann | info, op_summary) |
82 | 4c91d2ad | Iustin Pop | |
83 | 4c91d2ad | Iustin Pop | |
84 | 23e50d39 | Michael Hanselmann | class ClientRequestWorker(workerpool.BaseWorker): |
85 | b459a848 | Andrea Spadaccini | # pylint: disable=W0221
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86 | 7e5a6e86 | Guido Trotter | def RunTask(self, server, message, client): |
87 | 23e50d39 | Michael Hanselmann | """Process the request.
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88 | 23e50d39 | Michael Hanselmann |
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89 | 23e50d39 | Michael Hanselmann | """
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90 | 7e5a6e86 | Guido Trotter | client_ops = ClientOps(server) |
91 | 7e5a6e86 | Guido Trotter | |
92 | 23e50d39 | Michael Hanselmann | try:
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93 | e986f20c | Michael Hanselmann | (method, args, version) = luxi.ParseRequest(message) |
94 | 7e5a6e86 | Guido Trotter | except luxi.ProtocolError, err:
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95 | 7e5a6e86 | Guido Trotter | logging.error("Protocol Error: %s", err)
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96 | 7e5a6e86 | Guido Trotter | client.close_log() |
97 | 7e5a6e86 | Guido Trotter | return
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98 | 7e5a6e86 | Guido Trotter | |
99 | 7e5a6e86 | Guido Trotter | success = False
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100 | 7e5a6e86 | Guido Trotter | try:
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101 | e986f20c | Michael Hanselmann | # Verify client's version if there was one in the request
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102 | e986f20c | Michael Hanselmann | if version is not None and version != constants.LUXI_VERSION: |
103 | e986f20c | Michael Hanselmann | raise errors.LuxiError("LUXI version mismatch, server %s, request %s" % |
104 | e986f20c | Michael Hanselmann | (constants.LUXI_VERSION, version)) |
105 | e986f20c | Michael Hanselmann | |
106 | 7e5a6e86 | Guido Trotter | result = client_ops.handle_request(method, args) |
107 | 7e5a6e86 | Guido Trotter | success = True
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108 | 7e5a6e86 | Guido Trotter | except errors.GenericError, err:
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109 | 7e5a6e86 | Guido Trotter | logging.exception("Unexpected exception")
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110 | 7e5a6e86 | Guido Trotter | success = False
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111 | 7e5a6e86 | Guido Trotter | result = errors.EncodeException(err) |
112 | 7e5a6e86 | Guido Trotter | except:
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113 | 7e5a6e86 | Guido Trotter | logging.exception("Unexpected exception")
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114 | 7e5a6e86 | Guido Trotter | err = sys.exc_info() |
115 | 7e5a6e86 | Guido Trotter | result = "Caught exception: %s" % str(err[1]) |
116 | 7e5a6e86 | Guido Trotter | |
117 | 7e5a6e86 | Guido Trotter | try:
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118 | 7e5a6e86 | Guido Trotter | reply = luxi.FormatResponse(success, result) |
119 | 7e5a6e86 | Guido Trotter | client.send_message(reply) |
120 | 7e5a6e86 | Guido Trotter | # awake the main thread so that it can write out the data.
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121 | 7e5a6e86 | Guido Trotter | server.awaker.signal() |
122 | b459a848 | Andrea Spadaccini | except: # pylint: disable=W0702 |
123 | 7e5a6e86 | Guido Trotter | logging.exception("Send error")
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124 | 7e5a6e86 | Guido Trotter | client.close_log() |
125 | 7e5a6e86 | Guido Trotter | |
126 | 7e5a6e86 | Guido Trotter | |
127 | 7e5a6e86 | Guido Trotter | class MasterClientHandler(daemon.AsyncTerminatedMessageStream): |
128 | 7e5a6e86 | Guido Trotter | """Handler for master peers.
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129 | 7e5a6e86 | Guido Trotter |
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130 | 7e5a6e86 | Guido Trotter | """
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131 | 7e5a6e86 | Guido Trotter | _MAX_UNHANDLED = 1
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132 | e687ec01 | Michael Hanselmann | |
133 | 7e5a6e86 | Guido Trotter | def __init__(self, server, connected_socket, client_address, family): |
134 | 7e5a6e86 | Guido Trotter | daemon.AsyncTerminatedMessageStream.__init__(self, connected_socket,
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135 | 7e5a6e86 | Guido Trotter | client_address, |
136 | 7e5a6e86 | Guido Trotter | constants.LUXI_EOM, |
137 | 7e5a6e86 | Guido Trotter | family, self._MAX_UNHANDLED)
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138 | 7e5a6e86 | Guido Trotter | self.server = server
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139 | 7e5a6e86 | Guido Trotter | |
140 | 7e5a6e86 | Guido Trotter | def handle_message(self, message, _): |
141 | b2e8a4d9 | Michael Hanselmann | self.server.request_workers.AddTask((self.server, message, self)) |
142 | 23e50d39 | Michael Hanselmann | |
143 | 23e50d39 | Michael Hanselmann | |
144 | 5483fd73 | Michael Hanselmann | class _MasterShutdownCheck: |
145 | 5483fd73 | Michael Hanselmann | """Logic for master daemon shutdown.
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146 | 5483fd73 | Michael Hanselmann |
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147 | 5483fd73 | Michael Hanselmann | """
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148 | 5483fd73 | Michael Hanselmann | #: How long to wait between checks
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149 | 5483fd73 | Michael Hanselmann | _CHECK_INTERVAL = 5.0
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150 | 5483fd73 | Michael Hanselmann | |
151 | 5483fd73 | Michael Hanselmann | #: How long to wait after all jobs are done (e.g. to give clients time to
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152 | 5483fd73 | Michael Hanselmann | #: retrieve the job status)
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153 | 5483fd73 | Michael Hanselmann | _SHUTDOWN_LINGER = 5.0
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154 | 5483fd73 | Michael Hanselmann | |
155 | 5483fd73 | Michael Hanselmann | def __init__(self): |
156 | 5483fd73 | Michael Hanselmann | """Initializes this class.
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157 | 5483fd73 | Michael Hanselmann |
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158 | 5483fd73 | Michael Hanselmann | """
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159 | 5483fd73 | Michael Hanselmann | self._had_active_jobs = None |
160 | 5483fd73 | Michael Hanselmann | self._linger_timeout = None |
161 | 5483fd73 | Michael Hanselmann | |
162 | 5483fd73 | Michael Hanselmann | def __call__(self, jq_prepare_result): |
163 | 5483fd73 | Michael Hanselmann | """Determines if master daemon is ready for shutdown.
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164 | 5483fd73 | Michael Hanselmann |
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165 | 5483fd73 | Michael Hanselmann | @param jq_prepare_result: Result of L{jqueue.JobQueue.PrepareShutdown}
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166 | 5483fd73 | Michael Hanselmann | @rtype: None or number
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167 | 5483fd73 | Michael Hanselmann | @return: None if master daemon is ready, timeout if the check must be
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168 | 5483fd73 | Michael Hanselmann | repeated
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169 | 5483fd73 | Michael Hanselmann |
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170 | 5483fd73 | Michael Hanselmann | """
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171 | 5483fd73 | Michael Hanselmann | if jq_prepare_result:
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172 | 5483fd73 | Michael Hanselmann | # Check again shortly
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173 | 5483fd73 | Michael Hanselmann | logging.info("Job queue has been notified for shutdown but is still"
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174 | 5483fd73 | Michael Hanselmann | " busy; next check in %s seconds", self._CHECK_INTERVAL) |
175 | 5483fd73 | Michael Hanselmann | self._had_active_jobs = True |
176 | 5483fd73 | Michael Hanselmann | return self._CHECK_INTERVAL |
177 | 5483fd73 | Michael Hanselmann | |
178 | 5483fd73 | Michael Hanselmann | if not self._had_active_jobs: |
179 | 5483fd73 | Michael Hanselmann | # Can shut down as there were no active jobs on the first check
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180 | 5483fd73 | Michael Hanselmann | return None |
181 | 5483fd73 | Michael Hanselmann | |
182 | 5483fd73 | Michael Hanselmann | # No jobs are running anymore, but maybe some clients want to collect some
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183 | 5483fd73 | Michael Hanselmann | # information. Give them a short amount of time.
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184 | 5483fd73 | Michael Hanselmann | if self._linger_timeout is None: |
185 | 5483fd73 | Michael Hanselmann | self._linger_timeout = utils.RunningTimeout(self._SHUTDOWN_LINGER, True) |
186 | 5483fd73 | Michael Hanselmann | |
187 | 5483fd73 | Michael Hanselmann | remaining = self._linger_timeout.Remaining()
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188 | 5483fd73 | Michael Hanselmann | |
189 | 5483fd73 | Michael Hanselmann | logging.info("Job queue no longer busy; shutting down master daemon"
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190 | 5483fd73 | Michael Hanselmann | " in %s seconds", remaining)
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191 | 5483fd73 | Michael Hanselmann | |
192 | 5483fd73 | Michael Hanselmann | # TODO: Should the master daemon socket be closed at this point? Doing so
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193 | 5483fd73 | Michael Hanselmann | # wouldn't affect existing connections.
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194 | 5483fd73 | Michael Hanselmann | |
195 | 5483fd73 | Michael Hanselmann | if remaining < 0: |
196 | 5483fd73 | Michael Hanselmann | return None |
197 | 5483fd73 | Michael Hanselmann | else:
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198 | 5483fd73 | Michael Hanselmann | return remaining
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199 | 5483fd73 | Michael Hanselmann | |
200 | 5483fd73 | Michael Hanselmann | |
201 | cdd7f900 | Guido Trotter | class MasterServer(daemon.AsyncStreamServer): |
202 | cdd7f900 | Guido Trotter | """Master Server.
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203 | ffeffa1d | Iustin Pop |
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204 | cdd7f900 | Guido Trotter | This is the main asynchronous master server. It handles connections to the
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205 | cdd7f900 | Guido Trotter | master socket.
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206 | ffeffa1d | Iustin Pop |
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207 | ffeffa1d | Iustin Pop | """
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208 | 7e5a6e86 | Guido Trotter | family = socket.AF_UNIX |
209 | 7e5a6e86 | Guido Trotter | |
210 | e8a701f6 | Michael Hanselmann | def __init__(self, address, uid, gid): |
211 | cdd7f900 | Guido Trotter | """MasterServer constructor
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212 | ce862cd5 | Guido Trotter |
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213 | cdd7f900 | Guido Trotter | @param address: the unix socket address to bind the MasterServer to
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214 | bbfd0568 | René Nussbaumer | @param uid: The uid of the owner of the socket
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215 | bbfd0568 | René Nussbaumer | @param gid: The gid of the owner of the socket
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216 | ce862cd5 | Guido Trotter |
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217 | ce862cd5 | Guido Trotter | """
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218 | bbfd0568 | René Nussbaumer | temp_name = tempfile.mktemp(dir=os.path.dirname(address)) |
219 | 7e5a6e86 | Guido Trotter | daemon.AsyncStreamServer.__init__(self, self.family, temp_name) |
220 | bbfd0568 | René Nussbaumer | os.chmod(temp_name, 0770)
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221 | bbfd0568 | René Nussbaumer | os.chown(temp_name, uid, gid) |
222 | bbfd0568 | René Nussbaumer | os.rename(temp_name, address) |
223 | bbfd0568 | René Nussbaumer | |
224 | 7e5a6e86 | Guido Trotter | self.awaker = daemon.AsyncAwaker()
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225 | 50a3fbb2 | Michael Hanselmann | |
226 | 50a3fbb2 | Michael Hanselmann | # We'll only start threads once we've forked.
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227 | 9113300d | Michael Hanselmann | self.context = None |
228 | 23e50d39 | Michael Hanselmann | self.request_workers = None |
229 | 50a3fbb2 | Michael Hanselmann | |
230 | 5483fd73 | Michael Hanselmann | self._shutdown_check = None |
231 | 5483fd73 | Michael Hanselmann | |
232 | cdd7f900 | Guido Trotter | def handle_connection(self, connected_socket, client_address): |
233 | 7e5a6e86 | Guido Trotter | # TODO: add connection count and limit the number of open connections to a
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234 | 7e5a6e86 | Guido Trotter | # maximum number to avoid breaking for lack of file descriptors or memory.
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235 | 7e5a6e86 | Guido Trotter | MasterClientHandler(self, connected_socket, client_address, self.family) |
236 | cdd7f900 | Guido Trotter | |
237 | 50a3fbb2 | Michael Hanselmann | def setup_queue(self): |
238 | 9113300d | Michael Hanselmann | self.context = GanetiContext()
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239 | 89e2b4d2 | Michael Hanselmann | self.request_workers = workerpool.WorkerPool("ClientReq", |
240 | 89e2b4d2 | Michael Hanselmann | CLIENT_REQUEST_WORKERS, |
241 | 23e50d39 | Michael Hanselmann | ClientRequestWorker) |
242 | ffeffa1d | Iustin Pop | |
243 | 5483fd73 | Michael Hanselmann | def WaitForShutdown(self): |
244 | 5483fd73 | Michael Hanselmann | """Prepares server for shutdown.
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245 | 5483fd73 | Michael Hanselmann |
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246 | 5483fd73 | Michael Hanselmann | """
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247 | 5483fd73 | Michael Hanselmann | if self._shutdown_check is None: |
248 | 5483fd73 | Michael Hanselmann | self._shutdown_check = _MasterShutdownCheck()
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249 | 5483fd73 | Michael Hanselmann | |
250 | 5483fd73 | Michael Hanselmann | return self._shutdown_check(self.context.jobqueue.PrepareShutdown()) |
251 | 5483fd73 | Michael Hanselmann | |
252 | c1f2901b | Iustin Pop | def server_cleanup(self): |
253 | c1f2901b | Iustin Pop | """Cleanup the server.
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254 | c1f2901b | Iustin Pop |
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255 | c1f2901b | Iustin Pop | This involves shutting down the processor threads and the master
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256 | c1f2901b | Iustin Pop | socket.
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257 | c1f2901b | Iustin Pop |
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258 | c1f2901b | Iustin Pop | """
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259 | 50a3fbb2 | Michael Hanselmann | try:
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260 | cdd7f900 | Guido Trotter | self.close()
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261 | 50a3fbb2 | Michael Hanselmann | finally:
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262 | 23e50d39 | Michael Hanselmann | if self.request_workers: |
263 | 36088c4c | Michael Hanselmann | self.request_workers.TerminateWorkers()
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264 | 9113300d | Michael Hanselmann | if self.context: |
265 | 9113300d | Michael Hanselmann | self.context.jobqueue.Shutdown()
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266 | ffeffa1d | Iustin Pop | |
267 | ffeffa1d | Iustin Pop | |
268 | ffeffa1d | Iustin Pop | class ClientOps: |
269 | ffeffa1d | Iustin Pop | """Class holding high-level client operations."""
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270 | ffeffa1d | Iustin Pop | def __init__(self, server): |
271 | ffeffa1d | Iustin Pop | self.server = server
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272 | ffeffa1d | Iustin Pop | |
273 | b459a848 | Andrea Spadaccini | def handle_request(self, method, args): # pylint: disable=R0911 |
274 | e07f7f7a | Michael Hanselmann | context = self.server.context
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275 | e07f7f7a | Michael Hanselmann | queue = context.jobqueue |
276 | 0bbe448c | Michael Hanselmann | |
277 | 0bbe448c | Michael Hanselmann | # TODO: Parameter validation
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278 | a629ecb9 | Iustin Pop | if not isinstance(args, (tuple, list)): |
279 | a629ecb9 | Iustin Pop | logging.info("Received invalid arguments of type '%s'", type(args)) |
280 | a629ecb9 | Iustin Pop | raise ValueError("Invalid arguments type '%s'" % type(args)) |
281 | 0bbe448c | Michael Hanselmann | |
282 | 7260cfbe | Iustin Pop | # TODO: Rewrite to not exit in each 'if/elif' branch
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283 | 7260cfbe | Iustin Pop | |
284 | 0bbe448c | Michael Hanselmann | if method == luxi.REQ_SUBMIT_JOB:
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285 | 4c91d2ad | Iustin Pop | logging.info("Receiving new job")
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286 | 734a2a7c | René Nussbaumer | (job_def, ) = args |
287 | 734a2a7c | René Nussbaumer | ops = [opcodes.OpCode.LoadOpCode(state) for state in job_def] |
288 | 4c91d2ad | Iustin Pop | job_id = queue.SubmitJob(ops) |
289 | 4c91d2ad | Iustin Pop | _LogNewJob(True, job_id, ops)
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290 | 4c91d2ad | Iustin Pop | return job_id
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291 | ffeffa1d | Iustin Pop | |
292 | 1b5b1c49 | René Nussbaumer | elif method == luxi.REQ_SUBMIT_MANY_JOBS:
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293 | 4c91d2ad | Iustin Pop | logging.info("Receiving multiple jobs")
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294 | 734a2a7c | René Nussbaumer | (job_defs, ) = args |
295 | 2971c913 | Iustin Pop | jobs = [] |
296 | 734a2a7c | René Nussbaumer | for ops in job_defs: |
297 | 2971c913 | Iustin Pop | jobs.append([opcodes.OpCode.LoadOpCode(state) for state in ops]) |
298 | 4c91d2ad | Iustin Pop | job_ids = queue.SubmitManyJobs(jobs) |
299 | 4c91d2ad | Iustin Pop | for ((status, job_id), ops) in zip(job_ids, jobs): |
300 | 4c91d2ad | Iustin Pop | _LogNewJob(status, job_id, ops) |
301 | 4c91d2ad | Iustin Pop | return job_ids
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302 | 2971c913 | Iustin Pop | |
303 | 0bbe448c | Michael Hanselmann | elif method == luxi.REQ_CANCEL_JOB:
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304 | a629ecb9 | Iustin Pop | (job_id, ) = args |
305 | e566ddbd | Iustin Pop | logging.info("Received job cancel request for %s", job_id)
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306 | 0bbe448c | Michael Hanselmann | return queue.CancelJob(job_id)
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307 | ffeffa1d | Iustin Pop | |
308 | f63ffb37 | Michael Hanselmann | elif method == luxi.REQ_CHANGE_JOB_PRIORITY:
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309 | f63ffb37 | Michael Hanselmann | (job_id, priority) = args |
310 | f63ffb37 | Michael Hanselmann | logging.info("Received request to change priority for job %s to %s",
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311 | f63ffb37 | Michael Hanselmann | job_id, priority) |
312 | f63ffb37 | Michael Hanselmann | return queue.ChangeJobPriority(job_id, priority)
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313 | f63ffb37 | Michael Hanselmann | |
314 | 0bbe448c | Michael Hanselmann | elif method == luxi.REQ_ARCHIVE_JOB:
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315 | a629ecb9 | Iustin Pop | (job_id, ) = args |
316 | e566ddbd | Iustin Pop | logging.info("Received job archive request for %s", job_id)
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317 | 0bbe448c | Michael Hanselmann | return queue.ArchiveJob(job_id)
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318 | 0bbe448c | Michael Hanselmann | |
319 | 83c046a2 | Iustin Pop | elif method == luxi.REQ_AUTO_ARCHIVE_JOBS:
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320 | f8ad5591 | Michael Hanselmann | (age, timeout) = args |
321 | e566ddbd | Iustin Pop | logging.info("Received job autoarchive request for age %s, timeout %s",
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322 | e566ddbd | Iustin Pop | age, timeout) |
323 | f8ad5591 | Michael Hanselmann | return queue.AutoArchiveJobs(age, timeout)
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324 | 07cd723a | Iustin Pop | |
325 | dfe57c22 | Michael Hanselmann | elif method == luxi.REQ_WAIT_FOR_JOB_CHANGE:
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326 | 5c735209 | Iustin Pop | (job_id, fields, prev_job_info, prev_log_serial, timeout) = args |
327 | e566ddbd | Iustin Pop | logging.info("Received job poll request for %s", job_id)
|
328 | 6c5a7090 | Michael Hanselmann | return queue.WaitForJobChanges(job_id, fields, prev_job_info,
|
329 | 5c735209 | Iustin Pop | prev_log_serial, timeout) |
330 | dfe57c22 | Michael Hanselmann | |
331 | 28b71a76 | Michael Hanselmann | elif method == luxi.REQ_QUERY:
|
332 | a629ecb9 | Iustin Pop | (what, fields, qfilter) = args |
333 | 28b71a76 | Michael Hanselmann | |
334 | b4b3266b | Michael Hanselmann | if what in constants.QR_VIA_OP: |
335 | b4b3266b | Michael Hanselmann | result = self._Query(opcodes.OpQuery(what=what, fields=fields,
|
336 | b4b3266b | Michael Hanselmann | qfilter=qfilter)) |
337 | b4b3266b | Michael Hanselmann | elif what == constants.QR_LOCK:
|
338 | b4b3266b | Michael Hanselmann | if qfilter is not None: |
339 | 2cfbc784 | Iustin Pop | raise errors.OpPrereqError("Lock queries can't be filtered", |
340 | 2cfbc784 | Iustin Pop | errors.ECODE_INVAL) |
341 | b4b3266b | Michael Hanselmann | return context.glm.QueryLocks(fields)
|
342 | b4b3266b | Michael Hanselmann | elif what == constants.QR_JOB:
|
343 | b4b3266b | Michael Hanselmann | return queue.QueryJobs(fields, qfilter)
|
344 | b4b3266b | Michael Hanselmann | elif what in constants.QR_VIA_LUXI: |
345 | 28b71a76 | Michael Hanselmann | raise NotImplementedError |
346 | 28b71a76 | Michael Hanselmann | else:
|
347 | b4b3266b | Michael Hanselmann | raise errors.OpPrereqError("Resource type '%s' unknown" % what, |
348 | 28b71a76 | Michael Hanselmann | errors.ECODE_INVAL) |
349 | 28b71a76 | Michael Hanselmann | |
350 | 28b71a76 | Michael Hanselmann | return result
|
351 | 28b71a76 | Michael Hanselmann | |
352 | 28b71a76 | Michael Hanselmann | elif method == luxi.REQ_QUERY_FIELDS:
|
353 | a629ecb9 | Iustin Pop | (what, fields) = args |
354 | a629ecb9 | Iustin Pop | req = objects.QueryFieldsRequest(what=what, fields=fields) |
355 | 28b71a76 | Michael Hanselmann | |
356 | c1391810 | Michael Hanselmann | try:
|
357 | c1391810 | Michael Hanselmann | fielddefs = query.ALL_FIELDS[req.what] |
358 | c1391810 | Michael Hanselmann | except KeyError: |
359 | 28b71a76 | Michael Hanselmann | raise errors.OpPrereqError("Resource type '%s' unknown" % req.what, |
360 | 28b71a76 | Michael Hanselmann | errors.ECODE_INVAL) |
361 | 28b71a76 | Michael Hanselmann | |
362 | c1391810 | Michael Hanselmann | return query.QueryFields(fielddefs, req.fields)
|
363 | 28b71a76 | Michael Hanselmann | |
364 | 0bbe448c | Michael Hanselmann | elif method == luxi.REQ_QUERY_JOBS:
|
365 | 0bbe448c | Michael Hanselmann | (job_ids, fields) = args |
366 | e566ddbd | Iustin Pop | if isinstance(job_ids, (tuple, list)) and job_ids: |
367 | 1f864b60 | Iustin Pop | msg = utils.CommaJoin(job_ids) |
368 | e566ddbd | Iustin Pop | else:
|
369 | e566ddbd | Iustin Pop | msg = str(job_ids)
|
370 | e566ddbd | Iustin Pop | logging.info("Received job query request for %s", msg)
|
371 | e07f7f7a | Michael Hanselmann | return queue.OldStyleQueryJobs(job_ids, fields)
|
372 | 0bbe448c | Michael Hanselmann | |
373 | ee6c7b94 | Michael Hanselmann | elif method == luxi.REQ_QUERY_INSTANCES:
|
374 | ec79568d | Iustin Pop | (names, fields, use_locking) = args |
375 | e566ddbd | Iustin Pop | logging.info("Received instance query request for %s", names)
|
376 | 77921a95 | Iustin Pop | if use_locking:
|
377 | debac808 | Iustin Pop | raise errors.OpPrereqError("Sync queries are not allowed", |
378 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
379 | f2af0bec | Iustin Pop | op = opcodes.OpInstanceQuery(names=names, output_fields=fields, |
380 | f2af0bec | Iustin Pop | use_locking=use_locking) |
381 | ee6c7b94 | Michael Hanselmann | return self._Query(op) |
382 | ee6c7b94 | Michael Hanselmann | |
383 | 02f7fe54 | Michael Hanselmann | elif method == luxi.REQ_QUERY_NODES:
|
384 | ec79568d | Iustin Pop | (names, fields, use_locking) = args |
385 | e566ddbd | Iustin Pop | logging.info("Received node query request for %s", names)
|
386 | 77921a95 | Iustin Pop | if use_locking:
|
387 | debac808 | Iustin Pop | raise errors.OpPrereqError("Sync queries are not allowed", |
388 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
389 | 2237687b | Iustin Pop | op = opcodes.OpNodeQuery(names=names, output_fields=fields, |
390 | 2237687b | Iustin Pop | use_locking=use_locking) |
391 | 02f7fe54 | Michael Hanselmann | return self._Query(op) |
392 | 02f7fe54 | Michael Hanselmann | |
393 | a79ef2a5 | Adeodato Simo | elif method == luxi.REQ_QUERY_GROUPS:
|
394 | a79ef2a5 | Adeodato Simo | (names, fields, use_locking) = args |
395 | a79ef2a5 | Adeodato Simo | logging.info("Received group query request for %s", names)
|
396 | a79ef2a5 | Adeodato Simo | if use_locking:
|
397 | a79ef2a5 | Adeodato Simo | raise errors.OpPrereqError("Sync queries are not allowed", |
398 | a79ef2a5 | Adeodato Simo | errors.ECODE_INVAL) |
399 | d4d654bd | Iustin Pop | op = opcodes.OpGroupQuery(names=names, output_fields=fields) |
400 | a79ef2a5 | Adeodato Simo | return self._Query(op) |
401 | a79ef2a5 | Adeodato Simo | |
402 | 306bed0e | Apollon Oikonomopoulos | elif method == luxi.REQ_QUERY_NETWORKS:
|
403 | 306bed0e | Apollon Oikonomopoulos | (names, fields, use_locking) = args |
404 | 306bed0e | Apollon Oikonomopoulos | logging.info("Received network query request for %s", names)
|
405 | 306bed0e | Apollon Oikonomopoulos | if use_locking:
|
406 | 306bed0e | Apollon Oikonomopoulos | raise errors.OpPrereqError("Sync queries are not allowed", |
407 | 306bed0e | Apollon Oikonomopoulos | errors.ECODE_INVAL) |
408 | 306bed0e | Apollon Oikonomopoulos | op = opcodes.OpNetworkQuery(names=names, output_fields=fields) |
409 | 306bed0e | Apollon Oikonomopoulos | return self._Query(op) |
410 | 306bed0e | Apollon Oikonomopoulos | |
411 | 32f93223 | Michael Hanselmann | elif method == luxi.REQ_QUERY_EXPORTS:
|
412 | a629ecb9 | Iustin Pop | (nodes, use_locking) = args |
413 | 77921a95 | Iustin Pop | if use_locking:
|
414 | debac808 | Iustin Pop | raise errors.OpPrereqError("Sync queries are not allowed", |
415 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
416 | e566ddbd | Iustin Pop | logging.info("Received exports query request")
|
417 | 7ca2d4d8 | Iustin Pop | op = opcodes.OpBackupQuery(nodes=nodes, use_locking=use_locking) |
418 | 32f93223 | Michael Hanselmann | return self._Query(op) |
419 | 32f93223 | Michael Hanselmann | |
420 | ae5849b5 | Michael Hanselmann | elif method == luxi.REQ_QUERY_CONFIG_VALUES:
|
421 | a629ecb9 | Iustin Pop | (fields, ) = args |
422 | e566ddbd | Iustin Pop | logging.info("Received config values query request for %s", fields)
|
423 | 2f093ea0 | Iustin Pop | op = opcodes.OpClusterConfigQuery(output_fields=fields) |
424 | ae5849b5 | Michael Hanselmann | return self._Query(op) |
425 | ae5849b5 | Michael Hanselmann | |
426 | 66baeccc | Iustin Pop | elif method == luxi.REQ_QUERY_CLUSTER_INFO:
|
427 | e566ddbd | Iustin Pop | logging.info("Received cluster info query request")
|
428 | a2f7ab92 | Iustin Pop | op = opcodes.OpClusterQuery() |
429 | 66baeccc | Iustin Pop | return self._Query(op) |
430 | 66baeccc | Iustin Pop | |
431 | 7699c3af | Iustin Pop | elif method == luxi.REQ_QUERY_TAGS:
|
432 | a629ecb9 | Iustin Pop | (kind, name) = args |
433 | 7699c3af | Iustin Pop | logging.info("Received tags query request")
|
434 | cfdf561d | Michael Hanselmann | op = opcodes.OpTagsGet(kind=kind, name=name, use_locking=False)
|
435 | 7699c3af | Iustin Pop | return self._Query(op) |
436 | 7699c3af | Iustin Pop | |
437 | 83c046a2 | Iustin Pop | elif method == luxi.REQ_SET_DRAIN_FLAG:
|
438 | a629ecb9 | Iustin Pop | (drain_flag, ) = args |
439 | e566ddbd | Iustin Pop | logging.info("Received queue drain flag change request to %s",
|
440 | e566ddbd | Iustin Pop | drain_flag) |
441 | 3ccafd0e | Iustin Pop | return queue.SetDrainFlag(drain_flag)
|
442 | 3ccafd0e | Iustin Pop | |
443 | 05e50653 | Michael Hanselmann | elif method == luxi.REQ_SET_WATCHER_PAUSE:
|
444 | 05e50653 | Michael Hanselmann | (until, ) = args |
445 | 05e50653 | Michael Hanselmann | |
446 | 7c4bd156 | Michael Hanselmann | return _SetWatcherPause(context, until)
|
447 | 05e50653 | Michael Hanselmann | |
448 | 0bbe448c | Michael Hanselmann | else:
|
449 | e566ddbd | Iustin Pop | logging.info("Received invalid request '%s'", method)
|
450 | e566ddbd | Iustin Pop | raise ValueError("Invalid operation '%s'" % method) |
451 | ffeffa1d | Iustin Pop | |
452 | ee6c7b94 | Michael Hanselmann | def _Query(self, op): |
453 | ee6c7b94 | Michael Hanselmann | """Runs the specified opcode and returns the result.
|
454 | ee6c7b94 | Michael Hanselmann |
|
455 | ee6c7b94 | Michael Hanselmann | """
|
456 | adfa97e3 | Guido Trotter | # Queries don't have a job id
|
457 | dc4bdf73 | Michael Hanselmann | proc = mcpu.Processor(self.server.context, None, enable_locks=False) |
458 | 26d3fd2f | Michael Hanselmann | |
459 | 26d3fd2f | Michael Hanselmann | # TODO: Executing an opcode using locks will acquire them in blocking mode.
|
460 | 26d3fd2f | Michael Hanselmann | # Consider using a timeout for retries.
|
461 | 031a3e57 | Michael Hanselmann | return proc.ExecOpCode(op, None) |
462 | ee6c7b94 | Michael Hanselmann | |
463 | ffeffa1d | Iustin Pop | |
464 | 39dcf2ef | Guido Trotter | class GanetiContext(object): |
465 | 39dcf2ef | Guido Trotter | """Context common to all ganeti threads.
|
466 | 39dcf2ef | Guido Trotter |
|
467 | 39dcf2ef | Guido Trotter | This class creates and holds common objects shared by all threads.
|
468 | 39dcf2ef | Guido Trotter |
|
469 | 39dcf2ef | Guido Trotter | """
|
470 | b459a848 | Andrea Spadaccini | # pylint: disable=W0212
|
471 | 7260cfbe | Iustin Pop | # we do want to ensure a singleton here
|
472 | 39dcf2ef | Guido Trotter | _instance = None
|
473 | 39dcf2ef | Guido Trotter | |
474 | 39dcf2ef | Guido Trotter | def __init__(self): |
475 | 39dcf2ef | Guido Trotter | """Constructs a new GanetiContext object.
|
476 | 39dcf2ef | Guido Trotter |
|
477 | 39dcf2ef | Guido Trotter | There should be only a GanetiContext object at any time, so this
|
478 | 39dcf2ef | Guido Trotter | function raises an error if this is not the case.
|
479 | 39dcf2ef | Guido Trotter |
|
480 | 39dcf2ef | Guido Trotter | """
|
481 | 39dcf2ef | Guido Trotter | assert self.__class__._instance is None, "double GanetiContext instance" |
482 | 39dcf2ef | Guido Trotter | |
483 | 9113300d | Michael Hanselmann | # Create global configuration object
|
484 | 39dcf2ef | Guido Trotter | self.cfg = config.ConfigWriter()
|
485 | 9113300d | Michael Hanselmann | |
486 | 9113300d | Michael Hanselmann | # Locking manager
|
487 | 984f7c32 | Guido Trotter | self.glm = locking.GanetiLockManager(
|
488 | 5ae4945a | Iustin Pop | self.cfg.GetNodeList(),
|
489 | 5ae4945a | Iustin Pop | self.cfg.GetNodeGroupList(),
|
490 | da4a52a3 | Thomas Thrainer | [inst.name for inst in self.cfg.GetAllInstancesInfo().values()], |
491 | 6c0a75db | Dimitris Aragiorgis | self.cfg.GetNetworkList())
|
492 | 39dcf2ef | Guido Trotter | |
493 | b2acdbdc | Michael Hanselmann | self.cfg.SetContext(self) |
494 | b2acdbdc | Michael Hanselmann | |
495 | 87b3cb26 | Michael Hanselmann | # RPC runner
|
496 | d5ea30e8 | Michael Hanselmann | self.rpc = rpc.RpcRunner(self.cfg, self.glm.AddToLockMonitor) |
497 | 87b3cb26 | Michael Hanselmann | |
498 | cb4d3314 | Michael Hanselmann | # Job queue
|
499 | cb4d3314 | Michael Hanselmann | self.jobqueue = jqueue.JobQueue(self) |
500 | cb4d3314 | Michael Hanselmann | |
501 | 39dcf2ef | Guido Trotter | # setting this also locks the class against attribute modifications
|
502 | 39dcf2ef | Guido Trotter | self.__class__._instance = self |
503 | 39dcf2ef | Guido Trotter | |
504 | 39dcf2ef | Guido Trotter | def __setattr__(self, name, value): |
505 | 39dcf2ef | Guido Trotter | """Setting GanetiContext attributes is forbidden after initialization.
|
506 | 39dcf2ef | Guido Trotter |
|
507 | 39dcf2ef | Guido Trotter | """
|
508 | 39dcf2ef | Guido Trotter | assert self.__class__._instance is None, "Attempt to modify Ganeti Context" |
509 | 39dcf2ef | Guido Trotter | object.__setattr__(self, name, value) |
510 | 39dcf2ef | Guido Trotter | |
511 | 0debfb35 | Guido Trotter | def AddNode(self, node, ec_id): |
512 | d8470559 | Michael Hanselmann | """Adds a node to the configuration and lock manager.
|
513 | d8470559 | Michael Hanselmann |
|
514 | d8470559 | Michael Hanselmann | """
|
515 | d8470559 | Michael Hanselmann | # Add it to the configuration
|
516 | 0debfb35 | Guido Trotter | self.cfg.AddNode(node, ec_id)
|
517 | d8470559 | Michael Hanselmann | |
518 | c36176cc | Michael Hanselmann | # If preseeding fails it'll not be added
|
519 | 99aabbed | Iustin Pop | self.jobqueue.AddNode(node)
|
520 | c36176cc | Michael Hanselmann | |
521 | d8470559 | Michael Hanselmann | # Add the new node to the Ganeti Lock Manager
|
522 | 1c3231aa | Thomas Thrainer | self.glm.add(locking.LEVEL_NODE, node.uuid)
|
523 | 1c3231aa | Thomas Thrainer | self.glm.add(locking.LEVEL_NODE_RES, node.uuid)
|
524 | d8470559 | Michael Hanselmann | |
525 | d8470559 | Michael Hanselmann | def ReaddNode(self, node): |
526 | d8470559 | Michael Hanselmann | """Updates a node that's already in the configuration
|
527 | d8470559 | Michael Hanselmann |
|
528 | d8470559 | Michael Hanselmann | """
|
529 | c36176cc | Michael Hanselmann | # Synchronize the queue again
|
530 | 99aabbed | Iustin Pop | self.jobqueue.AddNode(node)
|
531 | d8470559 | Michael Hanselmann | |
532 | 1c3231aa | Thomas Thrainer | def RemoveNode(self, node): |
533 | d8470559 | Michael Hanselmann | """Removes a node from the configuration and lock manager.
|
534 | d8470559 | Michael Hanselmann |
|
535 | d8470559 | Michael Hanselmann | """
|
536 | d8470559 | Michael Hanselmann | # Remove node from configuration
|
537 | 1c3231aa | Thomas Thrainer | self.cfg.RemoveNode(node.uuid)
|
538 | d8470559 | Michael Hanselmann | |
539 | c36176cc | Michael Hanselmann | # Notify job queue
|
540 | 1c3231aa | Thomas Thrainer | self.jobqueue.RemoveNode(node.name)
|
541 | c36176cc | Michael Hanselmann | |
542 | d8470559 | Michael Hanselmann | # Remove the node from the Ganeti Lock Manager
|
543 | 1c3231aa | Thomas Thrainer | self.glm.remove(locking.LEVEL_NODE, node.uuid)
|
544 | 1c3231aa | Thomas Thrainer | self.glm.remove(locking.LEVEL_NODE_RES, node.uuid)
|
545 | d8470559 | Michael Hanselmann | |
546 | 39dcf2ef | Guido Trotter | |
547 | 7c4bd156 | Michael Hanselmann | def _SetWatcherPause(context, until): |
548 | 05e50653 | Michael Hanselmann | """Creates or removes the watcher pause file.
|
549 | 05e50653 | Michael Hanselmann |
|
550 | 7c4bd156 | Michael Hanselmann | @type context: L{GanetiContext}
|
551 | 7c4bd156 | Michael Hanselmann | @param context: Global Ganeti context
|
552 | 05e50653 | Michael Hanselmann | @type until: None or int
|
553 | 05e50653 | Michael Hanselmann | @param until: Unix timestamp saying until when the watcher shouldn't run
|
554 | 05e50653 | Michael Hanselmann |
|
555 | 05e50653 | Michael Hanselmann | """
|
556 | 7c4bd156 | Michael Hanselmann | node_names = context.cfg.GetNodeList() |
557 | 7c4bd156 | Michael Hanselmann | |
558 | 05e50653 | Michael Hanselmann | if until is None: |
559 | 7c4bd156 | Michael Hanselmann | logging.info("Received request to no longer pause watcher")
|
560 | 05e50653 | Michael Hanselmann | else:
|
561 | 7c4bd156 | Michael Hanselmann | if not ht.TNumber(until): |
562 | 7c4bd156 | Michael Hanselmann | raise TypeError("Duration must be numeric") |
563 | 7c4bd156 | Michael Hanselmann | |
564 | 7c4bd156 | Michael Hanselmann | if until < time.time():
|
565 | 7c4bd156 | Michael Hanselmann | raise errors.GenericError("Unable to set pause end time in the past") |
566 | 7c4bd156 | Michael Hanselmann | |
567 | 7c4bd156 | Michael Hanselmann | logging.info("Received request to pause watcher until %s", until)
|
568 | 7c4bd156 | Michael Hanselmann | |
569 | 7c4bd156 | Michael Hanselmann | result = context.rpc.call_set_watcher_pause(node_names, until) |
570 | 7c4bd156 | Michael Hanselmann | |
571 | 7c4bd156 | Michael Hanselmann | errmsg = utils.CommaJoin("%s (%s)" % (node_name, nres.fail_msg)
|
572 | 7c4bd156 | Michael Hanselmann | for (node_name, nres) in result.items() |
573 | 7c4bd156 | Michael Hanselmann | if nres.fail_msg and not nres.offline) |
574 | 7c4bd156 | Michael Hanselmann | if errmsg:
|
575 | 7c4bd156 | Michael Hanselmann | raise errors.OpExecError("Watcher pause was set where possible, but failed" |
576 | 7c4bd156 | Michael Hanselmann | " on the following node(s): %s" % errmsg)
|
577 | 05e50653 | Michael Hanselmann | |
578 | 28b498cd | Michael Hanselmann | return until
|
579 | 28b498cd | Michael Hanselmann | |
580 | 05e50653 | Michael Hanselmann | |
581 | e0e916fe | Iustin Pop | @rpc.RunWithRPC
|
582 | 36205981 | Iustin Pop | def CheckAgreement(): |
583 | 36205981 | Iustin Pop | """Check the agreement on who is the master.
|
584 | 36205981 | Iustin Pop |
|
585 | 36205981 | Iustin Pop | The function uses a very simple algorithm: we must get more positive
|
586 | 36205981 | Iustin Pop | than negative answers. Since in most of the cases we are the master,
|
587 | 36205981 | Iustin Pop | we'll use our own config file for getting the node list. In the
|
588 | 36205981 | Iustin Pop | future we could collect the current node list from our (possibly
|
589 | 36205981 | Iustin Pop | obsolete) known nodes.
|
590 | 36205981 | Iustin Pop |
|
591 | d7cdb55d | Iustin Pop | In order to account for cold-start of all nodes, we retry for up to
|
592 | d7cdb55d | Iustin Pop | a minute until we get a real answer as the top-voted one. If the
|
593 | d7cdb55d | Iustin Pop | nodes are more out-of-sync, for now manual startup of the master
|
594 | d7cdb55d | Iustin Pop | should be attempted.
|
595 | d7cdb55d | Iustin Pop |
|
596 | d7cdb55d | Iustin Pop | Note that for a even number of nodes cluster, we need at least half
|
597 | d7cdb55d | Iustin Pop | of the nodes (beside ourselves) to vote for us. This creates a
|
598 | d7cdb55d | Iustin Pop | problem on two-node clusters, since in this case we require the
|
599 | d7cdb55d | Iustin Pop | other node to be up too to confirm our status.
|
600 | d7cdb55d | Iustin Pop |
|
601 | 36205981 | Iustin Pop | """
|
602 | b705c7a6 | Manuel Franceschini | myself = netutils.Hostname.GetSysName() |
603 | 36205981 | Iustin Pop | #temp instantiation of a config writer, used only to get the node list
|
604 | 36205981 | Iustin Pop | cfg = config.ConfigWriter() |
605 | 1c3231aa | Thomas Thrainer | node_names = cfg.GetNodeNames(cfg.GetNodeList()) |
606 | 36205981 | Iustin Pop | del cfg
|
607 | d7cdb55d | Iustin Pop | retries = 6
|
608 | d7cdb55d | Iustin Pop | while retries > 0: |
609 | 1c3231aa | Thomas Thrainer | votes = bootstrap.GatherMasterVotes(node_names) |
610 | d7cdb55d | Iustin Pop | if not votes: |
611 | d7cdb55d | Iustin Pop | # empty node list, this is a one node cluster
|
612 | d7cdb55d | Iustin Pop | return True |
613 | d7cdb55d | Iustin Pop | if votes[0][0] is None: |
614 | d7cdb55d | Iustin Pop | retries -= 1
|
615 | d7cdb55d | Iustin Pop | time.sleep(10)
|
616 | 36205981 | Iustin Pop | continue
|
617 | d7cdb55d | Iustin Pop | break
|
618 | d7cdb55d | Iustin Pop | if retries == 0: |
619 | e09fdcfa | Iustin Pop | logging.critical("Cluster inconsistent, most of the nodes didn't answer"
|
620 | e09fdcfa | Iustin Pop | " after multiple retries. Aborting startup")
|
621 | d8f5a37d | Iustin Pop | logging.critical("Use the --no-voting option if you understand what"
|
622 | d8f5a37d | Iustin Pop | " effects it has on the cluster state")
|
623 | e09fdcfa | Iustin Pop | return False |
624 | d7cdb55d | Iustin Pop | # here a real node is at the top of the list
|
625 | d7cdb55d | Iustin Pop | all_votes = sum(item[1] for item in votes) |
626 | d7cdb55d | Iustin Pop | top_node, top_votes = votes[0]
|
627 | 8a20c732 | Michael Hanselmann | |
628 | d7cdb55d | Iustin Pop | result = False
|
629 | d7cdb55d | Iustin Pop | if top_node != myself:
|
630 | d7cdb55d | Iustin Pop | logging.critical("It seems we are not the master (top-voted node"
|
631 | bbe19c17 | Iustin Pop | " is %s with %d out of %d votes)", top_node, top_votes,
|
632 | bbe19c17 | Iustin Pop | all_votes) |
633 | d7cdb55d | Iustin Pop | elif top_votes < all_votes - top_votes:
|
634 | 36205981 | Iustin Pop | logging.critical("It seems we are not the master (%d votes for,"
|
635 | d7cdb55d | Iustin Pop | " %d votes against)", top_votes, all_votes - top_votes)
|
636 | d7cdb55d | Iustin Pop | else:
|
637 | d7cdb55d | Iustin Pop | result = True
|
638 | d7cdb55d | Iustin Pop | |
639 | d7cdb55d | Iustin Pop | return result
|
640 | 36205981 | Iustin Pop | |
641 | 6c948699 | Michael Hanselmann | |
642 | 340f4757 | Iustin Pop | @rpc.RunWithRPC
|
643 | 340f4757 | Iustin Pop | def ActivateMasterIP(): |
644 | 340f4757 | Iustin Pop | # activate ip
|
645 | 8da2bd43 | Andrea Spadaccini | cfg = config.ConfigWriter() |
646 | f9d20654 | Andrea Spadaccini | master_params = cfg.GetMasterNetworkParameters() |
647 | 57c7bc57 | Andrea Spadaccini | ems = cfg.GetUseExternalMipScript() |
648 | 8da2bd43 | Andrea Spadaccini | runner = rpc.BootstrapRunner() |
649 | 1c3231aa | Thomas Thrainer | # we use the node name, as the configuration is only available here yet
|
650 | 1c3231aa | Thomas Thrainer | result = runner.call_node_activate_master_ip( |
651 | 1c3231aa | Thomas Thrainer | cfg.GetNodeName(master_params.uuid), master_params, ems) |
652 | 8da2bd43 | Andrea Spadaccini | |
653 | 340f4757 | Iustin Pop | msg = result.fail_msg |
654 | 340f4757 | Iustin Pop | if msg:
|
655 | 340f4757 | Iustin Pop | logging.error("Can't activate master IP address: %s", msg)
|
656 | 340f4757 | Iustin Pop | |
657 | 340f4757 | Iustin Pop | |
658 | ed0efaa5 | Michael Hanselmann | def CheckMasterd(options, args): |
659 | ed0efaa5 | Michael Hanselmann | """Initial checks whether to run or exit with a failure.
|
660 | ed0efaa5 | Michael Hanselmann |
|
661 | ed0efaa5 | Michael Hanselmann | """
|
662 | f93427cd | Iustin Pop | if args: # masterd doesn't take any arguments |
663 | f93427cd | Iustin Pop | print >> sys.stderr, ("Usage: %s [-f] [-d]" % sys.argv[0]) |
664 | f93427cd | Iustin Pop | sys.exit(constants.EXIT_FAILURE) |
665 | f93427cd | Iustin Pop | |
666 | ed0efaa5 | Michael Hanselmann | ssconf.CheckMaster(options.debug) |
667 | ed0efaa5 | Michael Hanselmann | |
668 | bbfd0568 | René Nussbaumer | try:
|
669 | bbfd0568 | René Nussbaumer | options.uid = pwd.getpwnam(constants.MASTERD_USER).pw_uid |
670 | bbfd0568 | René Nussbaumer | options.gid = grp.getgrnam(constants.DAEMONS_GROUP).gr_gid |
671 | bbfd0568 | René Nussbaumer | except KeyError: |
672 | bbfd0568 | René Nussbaumer | print >> sys.stderr, ("User or group not existing on system: %s:%s" % |
673 | bbfd0568 | René Nussbaumer | (constants.MASTERD_USER, constants.DAEMONS_GROUP)) |
674 | bbfd0568 | René Nussbaumer | sys.exit(constants.EXIT_FAILURE) |
675 | bbfd0568 | René Nussbaumer | |
676 | a20e4768 | Michael Hanselmann | # Determine static runtime architecture information
|
677 | a20e4768 | Michael Hanselmann | runtime.InitArchInfo() |
678 | a20e4768 | Michael Hanselmann | |
679 | 4b63dc7a | Iustin Pop | # Check the configuration is sane before anything else
|
680 | 4b63dc7a | Iustin Pop | try:
|
681 | 4b63dc7a | Iustin Pop | config.ConfigWriter() |
682 | 4b63dc7a | Iustin Pop | except errors.ConfigVersionMismatch, err:
|
683 | 4b63dc7a | Iustin Pop | v1 = "%s.%s.%s" % constants.SplitVersion(err.args[0]) |
684 | 4b63dc7a | Iustin Pop | v2 = "%s.%s.%s" % constants.SplitVersion(err.args[1]) |
685 | 4b63dc7a | Iustin Pop | print >> sys.stderr, \
|
686 | 4b63dc7a | Iustin Pop | ("Configuration version mismatch. The current Ganeti software"
|
687 | 4b63dc7a | Iustin Pop | " expects version %s, but the on-disk configuration file has"
|
688 | 4b63dc7a | Iustin Pop | " version %s. This is likely the result of upgrading the"
|
689 | 4b63dc7a | Iustin Pop | " software without running the upgrade procedure. Please contact"
|
690 | 4b63dc7a | Iustin Pop | " your cluster administrator or complete the upgrade using the"
|
691 | 4b63dc7a | Iustin Pop | " cfgupgrade utility, after reading the upgrade notes." %
|
692 | 4b63dc7a | Iustin Pop | (v1, v2)) |
693 | 4b63dc7a | Iustin Pop | sys.exit(constants.EXIT_FAILURE) |
694 | 4b63dc7a | Iustin Pop | except errors.ConfigurationError, err:
|
695 | 4b63dc7a | Iustin Pop | print >> sys.stderr, \
|
696 | 4b63dc7a | Iustin Pop | ("Configuration error while opening the configuration file: %s\n"
|
697 | 4b63dc7a | Iustin Pop | "This might be caused by an incomplete software upgrade or"
|
698 | 4b63dc7a | Iustin Pop | " by a corrupted configuration file. Until the problem is fixed"
|
699 | 4b63dc7a | Iustin Pop | " the master daemon cannot start." % str(err)) |
700 | 4b63dc7a | Iustin Pop | sys.exit(constants.EXIT_FAILURE) |
701 | bbfd0568 | René Nussbaumer | |
702 | ed0efaa5 | Michael Hanselmann | # If CheckMaster didn't fail we believe we are the master, but we have to
|
703 | ed0efaa5 | Michael Hanselmann | # confirm with the other nodes.
|
704 | ed0efaa5 | Michael Hanselmann | if options.no_voting:
|
705 | 675e2bf5 | Iustin Pop | if not options.yes_do_it: |
706 | 675e2bf5 | Iustin Pop | sys.stdout.write("The 'no voting' option has been selected.\n")
|
707 | 675e2bf5 | Iustin Pop | sys.stdout.write("This is dangerous, please confirm by"
|
708 | 675e2bf5 | Iustin Pop | " typing uppercase 'yes': ")
|
709 | 675e2bf5 | Iustin Pop | sys.stdout.flush() |
710 | ed0efaa5 | Michael Hanselmann | |
711 | 675e2bf5 | Iustin Pop | confirmation = sys.stdin.readline().strip() |
712 | 675e2bf5 | Iustin Pop | if confirmation != "YES": |
713 | 675e2bf5 | Iustin Pop | print >> sys.stderr, "Aborting." |
714 | 675e2bf5 | Iustin Pop | sys.exit(constants.EXIT_FAILURE) |
715 | ed0efaa5 | Michael Hanselmann | |
716 | 675e2bf5 | Iustin Pop | else:
|
717 | 675e2bf5 | Iustin Pop | # CheckAgreement uses RPC and threads, hence it needs to be run in
|
718 | 675e2bf5 | Iustin Pop | # a separate process before we call utils.Daemonize in the current
|
719 | 675e2bf5 | Iustin Pop | # process.
|
720 | 675e2bf5 | Iustin Pop | if not utils.RunInSeparateProcess(CheckAgreement): |
721 | ed0efaa5 | Michael Hanselmann | sys.exit(constants.EXIT_FAILURE) |
722 | ed0efaa5 | Michael Hanselmann | |
723 | 340f4757 | Iustin Pop | # ActivateMasterIP also uses RPC/threads, so we run it again via a
|
724 | 340f4757 | Iustin Pop | # separate process.
|
725 | 340f4757 | Iustin Pop | |
726 | 340f4757 | Iustin Pop | # TODO: decide whether failure to activate the master IP is a fatal error
|
727 | 340f4757 | Iustin Pop | utils.RunInSeparateProcess(ActivateMasterIP) |
728 | 340f4757 | Iustin Pop | |
729 | ed0efaa5 | Michael Hanselmann | |
730 | 3ee53f1f | Iustin Pop | def PrepMasterd(options, _): |
731 | 3ee53f1f | Iustin Pop | """Prep master daemon function, executed with the PID file held.
|
732 | 3b316acb | Iustin Pop |
|
733 | 04ccf5e9 | Guido Trotter | """
|
734 | 04ccf5e9 | Guido Trotter | # This is safe to do as the pid file guarantees against
|
735 | 04ccf5e9 | Guido Trotter | # concurrent execution.
|
736 | a5ce2ea2 | Michael Hanselmann | utils.RemoveFile(pathutils.MASTER_SOCKET) |
737 | b1b6ea87 | Iustin Pop | |
738 | cdd7f900 | Guido Trotter | mainloop = daemon.Mainloop() |
739 | a5ce2ea2 | Michael Hanselmann | master = MasterServer(pathutils.MASTER_SOCKET, options.uid, options.gid) |
740 | 3ee53f1f | Iustin Pop | return (mainloop, master)
|
741 | 3ee53f1f | Iustin Pop | |
742 | 3ee53f1f | Iustin Pop | |
743 | b459a848 | Andrea Spadaccini | def ExecMasterd(options, args, prep_data): # pylint: disable=W0613 |
744 | 3ee53f1f | Iustin Pop | """Main master daemon function, executed with the PID file held.
|
745 | 3ee53f1f | Iustin Pop |
|
746 | 3ee53f1f | Iustin Pop | """
|
747 | 3ee53f1f | Iustin Pop | (mainloop, master) = prep_data |
748 | 04ccf5e9 | Guido Trotter | try:
|
749 | 15486fa7 | Michael Hanselmann | rpc.Init() |
750 | 4331f6cd | Michael Hanselmann | try:
|
751 | 15486fa7 | Michael Hanselmann | master.setup_queue() |
752 | 15486fa7 | Michael Hanselmann | try:
|
753 | 5483fd73 | Michael Hanselmann | mainloop.Run(shutdown_wait_fn=master.WaitForShutdown) |
754 | 15486fa7 | Michael Hanselmann | finally:
|
755 | 15486fa7 | Michael Hanselmann | master.server_cleanup() |
756 | 4331f6cd | Michael Hanselmann | finally:
|
757 | 15486fa7 | Michael Hanselmann | rpc.Shutdown() |
758 | a4af651e | Iustin Pop | finally:
|
759 | a5ce2ea2 | Michael Hanselmann | utils.RemoveFile(pathutils.MASTER_SOCKET) |
760 | a4af651e | Iustin Pop | |
761 | 5483fd73 | Michael Hanselmann | logging.info("Clean master daemon shutdown")
|
762 | 5483fd73 | Michael Hanselmann | |
763 | ffeffa1d | Iustin Pop | |
764 | 29d91329 | Michael Hanselmann | def Main(): |
765 | 04ccf5e9 | Guido Trotter | """Main function"""
|
766 | 04ccf5e9 | Guido Trotter | parser = OptionParser(description="Ganeti master daemon",
|
767 | 04ccf5e9 | Guido Trotter | usage="%prog [-f] [-d]",
|
768 | 04ccf5e9 | Guido Trotter | version="%%prog (ganeti) %s" %
|
769 | 04ccf5e9 | Guido Trotter | constants.RELEASE_VERSION) |
770 | 04ccf5e9 | Guido Trotter | parser.add_option("--no-voting", dest="no_voting", |
771 | 04ccf5e9 | Guido Trotter | help="Do not check that the nodes agree on this node"
|
772 | 04ccf5e9 | Guido Trotter | " being the master and start the daemon unconditionally",
|
773 | 04ccf5e9 | Guido Trotter | default=False, action="store_true") |
774 | 04ccf5e9 | Guido Trotter | parser.add_option("--yes-do-it", dest="yes_do_it", |
775 | 04ccf5e9 | Guido Trotter | help="Override interactive check for --no-voting",
|
776 | 04ccf5e9 | Guido Trotter | default=False, action="store_true") |
777 | 3ee53f1f | Iustin Pop | daemon.GenericMain(constants.MASTERD, parser, CheckMasterd, PrepMasterd, |
778 | b42ea9ed | Iustin Pop | ExecMasterd, multithreaded=True) |