root / lib / server / masterd.py @ f2af0bec
History | View | Annotate | Download (21.4 kB)
1 | 69cf3abd | Michael Hanselmann | #
|
---|---|---|---|
2 | ffeffa1d | Iustin Pop | #
|
3 | ffeffa1d | Iustin Pop | |
4 | f2af0bec | Iustin Pop | # Copyright (C) 2006, 2007, 2010, 2011 Google Inc.
|
5 | ffeffa1d | Iustin Pop | #
|
6 | ffeffa1d | Iustin Pop | # This program is free software; you can redistribute it and/or modify
|
7 | ffeffa1d | Iustin Pop | # it under the terms of the GNU General Public License as published by
|
8 | ffeffa1d | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
|
9 | ffeffa1d | Iustin Pop | # (at your option) any later version.
|
10 | ffeffa1d | Iustin Pop | #
|
11 | ffeffa1d | Iustin Pop | # This program is distributed in the hope that it will be useful, but
|
12 | ffeffa1d | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | ffeffa1d | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | ffeffa1d | Iustin Pop | # General Public License for more details.
|
15 | ffeffa1d | Iustin Pop | #
|
16 | ffeffa1d | Iustin Pop | # You should have received a copy of the GNU General Public License
|
17 | ffeffa1d | Iustin Pop | # along with this program; if not, write to the Free Software
|
18 | ffeffa1d | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 | ffeffa1d | Iustin Pop | # 02110-1301, USA.
|
20 | ffeffa1d | Iustin Pop | |
21 | ffeffa1d | Iustin Pop | |
22 | ffeffa1d | Iustin Pop | """Master daemon program.
|
23 | ffeffa1d | Iustin Pop |
|
24 | ffeffa1d | Iustin Pop | Some classes deviates from the standard style guide since the
|
25 | ffeffa1d | Iustin Pop | inheritance from parent classes requires it.
|
26 | ffeffa1d | Iustin Pop |
|
27 | ffeffa1d | Iustin Pop | """
|
28 | ffeffa1d | Iustin Pop | |
29 | 7260cfbe | Iustin Pop | # pylint: disable-msg=C0103
|
30 | 7260cfbe | Iustin Pop | # C0103: Invalid name ganeti-masterd
|
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 | c1f2901b | Iustin Pop | |
61 | c1f2901b | Iustin Pop | |
62 | 23e50d39 | Michael Hanselmann | CLIENT_REQUEST_WORKERS = 16
|
63 | 23e50d39 | Michael Hanselmann | |
64 | c1f2901b | Iustin Pop | EXIT_NOTMASTER = constants.EXIT_NOTMASTER |
65 | c1f2901b | Iustin Pop | EXIT_NODESETUP_ERROR = constants.EXIT_NODESETUP_ERROR |
66 | ffeffa1d | Iustin Pop | |
67 | ffeffa1d | Iustin Pop | |
68 | 23e50d39 | Michael Hanselmann | class ClientRequestWorker(workerpool.BaseWorker): |
69 | e0dbb89b | Guido Trotter | # pylint: disable-msg=W0221
|
70 | 7e5a6e86 | Guido Trotter | def RunTask(self, server, message, client): |
71 | 23e50d39 | Michael Hanselmann | """Process the request.
|
72 | 23e50d39 | Michael Hanselmann |
|
73 | 23e50d39 | Michael Hanselmann | """
|
74 | 7e5a6e86 | Guido Trotter | client_ops = ClientOps(server) |
75 | 7e5a6e86 | Guido Trotter | |
76 | 23e50d39 | Michael Hanselmann | try:
|
77 | e986f20c | Michael Hanselmann | (method, args, version) = luxi.ParseRequest(message) |
78 | 7e5a6e86 | Guido Trotter | except luxi.ProtocolError, err:
|
79 | 7e5a6e86 | Guido Trotter | logging.error("Protocol Error: %s", err)
|
80 | 7e5a6e86 | Guido Trotter | client.close_log() |
81 | 7e5a6e86 | Guido Trotter | return
|
82 | 7e5a6e86 | Guido Trotter | |
83 | 7e5a6e86 | Guido Trotter | success = False
|
84 | 7e5a6e86 | Guido Trotter | try:
|
85 | e986f20c | Michael Hanselmann | # Verify client's version if there was one in the request
|
86 | e986f20c | Michael Hanselmann | if version is not None and version != constants.LUXI_VERSION: |
87 | e986f20c | Michael Hanselmann | raise errors.LuxiError("LUXI version mismatch, server %s, request %s" % |
88 | e986f20c | Michael Hanselmann | (constants.LUXI_VERSION, version)) |
89 | e986f20c | Michael Hanselmann | |
90 | 7e5a6e86 | Guido Trotter | result = client_ops.handle_request(method, args) |
91 | 7e5a6e86 | Guido Trotter | success = True
|
92 | 7e5a6e86 | Guido Trotter | except errors.GenericError, err:
|
93 | 7e5a6e86 | Guido Trotter | logging.exception("Unexpected exception")
|
94 | 7e5a6e86 | Guido Trotter | success = False
|
95 | 7e5a6e86 | Guido Trotter | result = errors.EncodeException(err) |
96 | 7e5a6e86 | Guido Trotter | except:
|
97 | 7e5a6e86 | Guido Trotter | logging.exception("Unexpected exception")
|
98 | 7e5a6e86 | Guido Trotter | err = sys.exc_info() |
99 | 7e5a6e86 | Guido Trotter | result = "Caught exception: %s" % str(err[1]) |
100 | 7e5a6e86 | Guido Trotter | |
101 | 7e5a6e86 | Guido Trotter | try:
|
102 | 7e5a6e86 | Guido Trotter | reply = luxi.FormatResponse(success, result) |
103 | 7e5a6e86 | Guido Trotter | client.send_message(reply) |
104 | 7e5a6e86 | Guido Trotter | # awake the main thread so that it can write out the data.
|
105 | 7e5a6e86 | Guido Trotter | server.awaker.signal() |
106 | e0dbb89b | Guido Trotter | except: # pylint: disable-msg=W0702 |
107 | 7e5a6e86 | Guido Trotter | logging.exception("Send error")
|
108 | 7e5a6e86 | Guido Trotter | client.close_log() |
109 | 7e5a6e86 | Guido Trotter | |
110 | 7e5a6e86 | Guido Trotter | |
111 | 7e5a6e86 | Guido Trotter | class MasterClientHandler(daemon.AsyncTerminatedMessageStream): |
112 | 7e5a6e86 | Guido Trotter | """Handler for master peers.
|
113 | 7e5a6e86 | Guido Trotter |
|
114 | 7e5a6e86 | Guido Trotter | """
|
115 | 7e5a6e86 | Guido Trotter | _MAX_UNHANDLED = 1
|
116 | 7e5a6e86 | Guido Trotter | def __init__(self, server, connected_socket, client_address, family): |
117 | 7e5a6e86 | Guido Trotter | daemon.AsyncTerminatedMessageStream.__init__(self, connected_socket,
|
118 | 7e5a6e86 | Guido Trotter | client_address, |
119 | 7e5a6e86 | Guido Trotter | constants.LUXI_EOM, |
120 | 7e5a6e86 | Guido Trotter | family, self._MAX_UNHANDLED)
|
121 | 7e5a6e86 | Guido Trotter | self.server = server
|
122 | 7e5a6e86 | Guido Trotter | |
123 | 7e5a6e86 | Guido Trotter | def handle_message(self, message, _): |
124 | b2e8a4d9 | Michael Hanselmann | self.server.request_workers.AddTask((self.server, message, self)) |
125 | 23e50d39 | Michael Hanselmann | |
126 | 23e50d39 | Michael Hanselmann | |
127 | cdd7f900 | Guido Trotter | class MasterServer(daemon.AsyncStreamServer): |
128 | cdd7f900 | Guido Trotter | """Master Server.
|
129 | ffeffa1d | Iustin Pop |
|
130 | cdd7f900 | Guido Trotter | This is the main asynchronous master server. It handles connections to the
|
131 | cdd7f900 | Guido Trotter | master socket.
|
132 | ffeffa1d | Iustin Pop |
|
133 | ffeffa1d | Iustin Pop | """
|
134 | 7e5a6e86 | Guido Trotter | family = socket.AF_UNIX |
135 | 7e5a6e86 | Guido Trotter | |
136 | 7e5a6e86 | Guido Trotter | def __init__(self, mainloop, address, uid, gid): |
137 | cdd7f900 | Guido Trotter | """MasterServer constructor
|
138 | ce862cd5 | Guido Trotter |
|
139 | cdd7f900 | Guido Trotter | @type mainloop: ganeti.daemon.Mainloop
|
140 | cdd7f900 | Guido Trotter | @param mainloop: Mainloop used to poll for I/O events
|
141 | cdd7f900 | Guido Trotter | @param address: the unix socket address to bind the MasterServer to
|
142 | bbfd0568 | René Nussbaumer | @param uid: The uid of the owner of the socket
|
143 | bbfd0568 | René Nussbaumer | @param gid: The gid of the owner of the socket
|
144 | ce862cd5 | Guido Trotter |
|
145 | ce862cd5 | Guido Trotter | """
|
146 | bbfd0568 | René Nussbaumer | temp_name = tempfile.mktemp(dir=os.path.dirname(address)) |
147 | 7e5a6e86 | Guido Trotter | daemon.AsyncStreamServer.__init__(self, self.family, temp_name) |
148 | bbfd0568 | René Nussbaumer | os.chmod(temp_name, 0770)
|
149 | bbfd0568 | René Nussbaumer | os.chown(temp_name, uid, gid) |
150 | bbfd0568 | René Nussbaumer | os.rename(temp_name, address) |
151 | bbfd0568 | René Nussbaumer | |
152 | cdd7f900 | Guido Trotter | self.mainloop = mainloop
|
153 | 7e5a6e86 | Guido Trotter | self.awaker = daemon.AsyncAwaker()
|
154 | 50a3fbb2 | Michael Hanselmann | |
155 | 50a3fbb2 | Michael Hanselmann | # We'll only start threads once we've forked.
|
156 | 9113300d | Michael Hanselmann | self.context = None |
157 | 23e50d39 | Michael Hanselmann | self.request_workers = None |
158 | 50a3fbb2 | Michael Hanselmann | |
159 | cdd7f900 | Guido Trotter | def handle_connection(self, connected_socket, client_address): |
160 | 7e5a6e86 | Guido Trotter | # TODO: add connection count and limit the number of open connections to a
|
161 | 7e5a6e86 | Guido Trotter | # maximum number to avoid breaking for lack of file descriptors or memory.
|
162 | 7e5a6e86 | Guido Trotter | MasterClientHandler(self, connected_socket, client_address, self.family) |
163 | cdd7f900 | Guido Trotter | |
164 | 50a3fbb2 | Michael Hanselmann | def setup_queue(self): |
165 | 9113300d | Michael Hanselmann | self.context = GanetiContext()
|
166 | 89e2b4d2 | Michael Hanselmann | self.request_workers = workerpool.WorkerPool("ClientReq", |
167 | 89e2b4d2 | Michael Hanselmann | CLIENT_REQUEST_WORKERS, |
168 | 23e50d39 | Michael Hanselmann | ClientRequestWorker) |
169 | ffeffa1d | Iustin Pop | |
170 | c1f2901b | Iustin Pop | def server_cleanup(self): |
171 | c1f2901b | Iustin Pop | """Cleanup the server.
|
172 | c1f2901b | Iustin Pop |
|
173 | c1f2901b | Iustin Pop | This involves shutting down the processor threads and the master
|
174 | c1f2901b | Iustin Pop | socket.
|
175 | c1f2901b | Iustin Pop |
|
176 | c1f2901b | Iustin Pop | """
|
177 | 50a3fbb2 | Michael Hanselmann | try:
|
178 | cdd7f900 | Guido Trotter | self.close()
|
179 | 50a3fbb2 | Michael Hanselmann | finally:
|
180 | 23e50d39 | Michael Hanselmann | if self.request_workers: |
181 | 36088c4c | Michael Hanselmann | self.request_workers.TerminateWorkers()
|
182 | 9113300d | Michael Hanselmann | if self.context: |
183 | 9113300d | Michael Hanselmann | self.context.jobqueue.Shutdown()
|
184 | ffeffa1d | Iustin Pop | |
185 | ffeffa1d | Iustin Pop | |
186 | ffeffa1d | Iustin Pop | class ClientOps: |
187 | ffeffa1d | Iustin Pop | """Class holding high-level client operations."""
|
188 | ffeffa1d | Iustin Pop | def __init__(self, server): |
189 | ffeffa1d | Iustin Pop | self.server = server
|
190 | ffeffa1d | Iustin Pop | |
191 | 7260cfbe | Iustin Pop | def handle_request(self, method, args): # pylint: disable-msg=R0911 |
192 | 9113300d | Michael Hanselmann | queue = self.server.context.jobqueue
|
193 | 0bbe448c | Michael Hanselmann | |
194 | 0bbe448c | Michael Hanselmann | # TODO: Parameter validation
|
195 | 0bbe448c | Michael Hanselmann | |
196 | 7260cfbe | Iustin Pop | # TODO: Rewrite to not exit in each 'if/elif' branch
|
197 | 7260cfbe | Iustin Pop | |
198 | 0bbe448c | Michael Hanselmann | if method == luxi.REQ_SUBMIT_JOB:
|
199 | e566ddbd | Iustin Pop | logging.info("Received new job")
|
200 | 0bbe448c | Michael Hanselmann | ops = [opcodes.OpCode.LoadOpCode(state) for state in args] |
201 | 4c848b18 | Michael Hanselmann | return queue.SubmitJob(ops)
|
202 | ffeffa1d | Iustin Pop | |
203 | 2971c913 | Iustin Pop | if method == luxi.REQ_SUBMIT_MANY_JOBS:
|
204 | 2971c913 | Iustin Pop | logging.info("Received multiple jobs")
|
205 | 2971c913 | Iustin Pop | jobs = [] |
206 | 2971c913 | Iustin Pop | for ops in args: |
207 | 2971c913 | Iustin Pop | jobs.append([opcodes.OpCode.LoadOpCode(state) for state in ops]) |
208 | 2971c913 | Iustin Pop | return queue.SubmitManyJobs(jobs)
|
209 | 2971c913 | Iustin Pop | |
210 | 0bbe448c | Michael Hanselmann | elif method == luxi.REQ_CANCEL_JOB:
|
211 | 3a2c7775 | Michael Hanselmann | job_id = args |
212 | e566ddbd | Iustin Pop | logging.info("Received job cancel request for %s", job_id)
|
213 | 0bbe448c | Michael Hanselmann | return queue.CancelJob(job_id)
|
214 | ffeffa1d | Iustin Pop | |
215 | 0bbe448c | Michael Hanselmann | elif method == luxi.REQ_ARCHIVE_JOB:
|
216 | 3a2c7775 | Michael Hanselmann | job_id = args |
217 | e566ddbd | Iustin Pop | logging.info("Received job archive request for %s", job_id)
|
218 | 0bbe448c | Michael Hanselmann | return queue.ArchiveJob(job_id)
|
219 | 0bbe448c | Michael Hanselmann | |
220 | 07cd723a | Iustin Pop | elif method == luxi.REQ_AUTOARCHIVE_JOBS:
|
221 | f8ad5591 | Michael Hanselmann | (age, timeout) = args |
222 | e566ddbd | Iustin Pop | logging.info("Received job autoarchive request for age %s, timeout %s",
|
223 | e566ddbd | Iustin Pop | age, timeout) |
224 | f8ad5591 | Michael Hanselmann | return queue.AutoArchiveJobs(age, timeout)
|
225 | 07cd723a | Iustin Pop | |
226 | dfe57c22 | Michael Hanselmann | elif method == luxi.REQ_WAIT_FOR_JOB_CHANGE:
|
227 | 5c735209 | Iustin Pop | (job_id, fields, prev_job_info, prev_log_serial, timeout) = args |
228 | e566ddbd | Iustin Pop | logging.info("Received job poll request for %s", job_id)
|
229 | 6c5a7090 | Michael Hanselmann | return queue.WaitForJobChanges(job_id, fields, prev_job_info,
|
230 | 5c735209 | Iustin Pop | prev_log_serial, timeout) |
231 | dfe57c22 | Michael Hanselmann | |
232 | 28b71a76 | Michael Hanselmann | elif method == luxi.REQ_QUERY:
|
233 | 28b71a76 | Michael Hanselmann | req = objects.QueryRequest.FromDict(args) |
234 | 28b71a76 | Michael Hanselmann | |
235 | 28b71a76 | Michael Hanselmann | if req.what in constants.QR_OP_QUERY: |
236 | 28b71a76 | Michael Hanselmann | result = self._Query(opcodes.OpQuery(what=req.what, fields=req.fields,
|
237 | 28b71a76 | Michael Hanselmann | filter=req.filter)) |
238 | 24d16f76 | Michael Hanselmann | elif req.what == constants.QR_LOCK:
|
239 | 24d16f76 | Michael Hanselmann | if req.filter is not None: |
240 | 24d16f76 | Michael Hanselmann | raise errors.OpPrereqError("Lock queries can't be filtered") |
241 | 24d16f76 | Michael Hanselmann | return self.server.context.glm.QueryLocks(req.fields) |
242 | 28b71a76 | Michael Hanselmann | elif req.what in constants.QR_OP_LUXI: |
243 | 28b71a76 | Michael Hanselmann | raise NotImplementedError |
244 | 28b71a76 | Michael Hanselmann | else:
|
245 | 28b71a76 | Michael Hanselmann | raise errors.OpPrereqError("Resource type '%s' unknown" % req.what, |
246 | 28b71a76 | Michael Hanselmann | errors.ECODE_INVAL) |
247 | 28b71a76 | Michael Hanselmann | |
248 | 28b71a76 | Michael Hanselmann | return result
|
249 | 28b71a76 | Michael Hanselmann | |
250 | 28b71a76 | Michael Hanselmann | elif method == luxi.REQ_QUERY_FIELDS:
|
251 | 28b71a76 | Michael Hanselmann | req = objects.QueryFieldsRequest.FromDict(args) |
252 | 28b71a76 | Michael Hanselmann | |
253 | 28b71a76 | Michael Hanselmann | if req.what in constants.QR_OP_QUERY: |
254 | 28b71a76 | Michael Hanselmann | result = self._Query(opcodes.OpQueryFields(what=req.what,
|
255 | 28b71a76 | Michael Hanselmann | fields=req.fields)) |
256 | 24d16f76 | Michael Hanselmann | elif req.what == constants.QR_LOCK:
|
257 | 24d16f76 | Michael Hanselmann | return query.QueryFields(query.LOCK_FIELDS, req.fields)
|
258 | 28b71a76 | Michael Hanselmann | elif req.what in constants.QR_OP_LUXI: |
259 | 28b71a76 | Michael Hanselmann | raise NotImplementedError |
260 | 28b71a76 | Michael Hanselmann | else:
|
261 | 28b71a76 | Michael Hanselmann | raise errors.OpPrereqError("Resource type '%s' unknown" % req.what, |
262 | 28b71a76 | Michael Hanselmann | errors.ECODE_INVAL) |
263 | 28b71a76 | Michael Hanselmann | |
264 | 28b71a76 | Michael Hanselmann | return result
|
265 | 28b71a76 | Michael Hanselmann | |
266 | 0bbe448c | Michael Hanselmann | elif method == luxi.REQ_QUERY_JOBS:
|
267 | 0bbe448c | Michael Hanselmann | (job_ids, fields) = args |
268 | e566ddbd | Iustin Pop | if isinstance(job_ids, (tuple, list)) and job_ids: |
269 | 1f864b60 | Iustin Pop | msg = utils.CommaJoin(job_ids) |
270 | e566ddbd | Iustin Pop | else:
|
271 | e566ddbd | Iustin Pop | msg = str(job_ids)
|
272 | e566ddbd | Iustin Pop | logging.info("Received job query request for %s", msg)
|
273 | 0bbe448c | Michael Hanselmann | return queue.QueryJobs(job_ids, fields)
|
274 | 0bbe448c | Michael Hanselmann | |
275 | ee6c7b94 | Michael Hanselmann | elif method == luxi.REQ_QUERY_INSTANCES:
|
276 | ec79568d | Iustin Pop | (names, fields, use_locking) = args |
277 | e566ddbd | Iustin Pop | logging.info("Received instance query request for %s", names)
|
278 | 77921a95 | Iustin Pop | if use_locking:
|
279 | debac808 | Iustin Pop | raise errors.OpPrereqError("Sync queries are not allowed", |
280 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
281 | f2af0bec | Iustin Pop | op = opcodes.OpInstanceQuery(names=names, output_fields=fields, |
282 | f2af0bec | Iustin Pop | use_locking=use_locking) |
283 | ee6c7b94 | Michael Hanselmann | return self._Query(op) |
284 | ee6c7b94 | Michael Hanselmann | |
285 | 02f7fe54 | Michael Hanselmann | elif method == luxi.REQ_QUERY_NODES:
|
286 | ec79568d | Iustin Pop | (names, fields, use_locking) = args |
287 | e566ddbd | Iustin Pop | logging.info("Received node query request for %s", names)
|
288 | 77921a95 | Iustin Pop | if use_locking:
|
289 | debac808 | Iustin Pop | raise errors.OpPrereqError("Sync queries are not allowed", |
290 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
291 | ec79568d | Iustin Pop | op = opcodes.OpQueryNodes(names=names, output_fields=fields, |
292 | ec79568d | Iustin Pop | use_locking=use_locking) |
293 | 02f7fe54 | Michael Hanselmann | return self._Query(op) |
294 | 02f7fe54 | Michael Hanselmann | |
295 | a79ef2a5 | Adeodato Simo | elif method == luxi.REQ_QUERY_GROUPS:
|
296 | a79ef2a5 | Adeodato Simo | (names, fields, use_locking) = args |
297 | a79ef2a5 | Adeodato Simo | logging.info("Received group query request for %s", names)
|
298 | a79ef2a5 | Adeodato Simo | if use_locking:
|
299 | a79ef2a5 | Adeodato Simo | raise errors.OpPrereqError("Sync queries are not allowed", |
300 | a79ef2a5 | Adeodato Simo | errors.ECODE_INVAL) |
301 | d4d654bd | Iustin Pop | op = opcodes.OpGroupQuery(names=names, output_fields=fields) |
302 | a79ef2a5 | Adeodato Simo | return self._Query(op) |
303 | a79ef2a5 | Adeodato Simo | |
304 | 32f93223 | Michael Hanselmann | elif method == luxi.REQ_QUERY_EXPORTS:
|
305 | ec79568d | Iustin Pop | nodes, use_locking = args |
306 | 77921a95 | Iustin Pop | if use_locking:
|
307 | debac808 | Iustin Pop | raise errors.OpPrereqError("Sync queries are not allowed", |
308 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
309 | e566ddbd | Iustin Pop | logging.info("Received exports query request")
|
310 | 7ca2d4d8 | Iustin Pop | op = opcodes.OpBackupQuery(nodes=nodes, use_locking=use_locking) |
311 | 32f93223 | Michael Hanselmann | return self._Query(op) |
312 | 32f93223 | Michael Hanselmann | |
313 | ae5849b5 | Michael Hanselmann | elif method == luxi.REQ_QUERY_CONFIG_VALUES:
|
314 | ae5849b5 | Michael Hanselmann | fields = args |
315 | e566ddbd | Iustin Pop | logging.info("Received config values query request for %s", fields)
|
316 | 2f093ea0 | Iustin Pop | op = opcodes.OpClusterConfigQuery(output_fields=fields) |
317 | ae5849b5 | Michael Hanselmann | return self._Query(op) |
318 | ae5849b5 | Michael Hanselmann | |
319 | 66baeccc | Iustin Pop | elif method == luxi.REQ_QUERY_CLUSTER_INFO:
|
320 | e566ddbd | Iustin Pop | logging.info("Received cluster info query request")
|
321 | a2f7ab92 | Iustin Pop | op = opcodes.OpClusterQuery() |
322 | 66baeccc | Iustin Pop | return self._Query(op) |
323 | 66baeccc | Iustin Pop | |
324 | 7699c3af | Iustin Pop | elif method == luxi.REQ_QUERY_TAGS:
|
325 | 7699c3af | Iustin Pop | kind, name = args |
326 | 7699c3af | Iustin Pop | logging.info("Received tags query request")
|
327 | 7699c3af | Iustin Pop | op = opcodes.OpGetTags(kind=kind, name=name) |
328 | 7699c3af | Iustin Pop | return self._Query(op) |
329 | 7699c3af | Iustin Pop | |
330 | 19b9ba9a | Michael Hanselmann | elif method == luxi.REQ_QUERY_LOCKS:
|
331 | 19b9ba9a | Michael Hanselmann | (fields, sync) = args |
332 | 19b9ba9a | Michael Hanselmann | logging.info("Received locks query request")
|
333 | 24d16f76 | Michael Hanselmann | if sync:
|
334 | 24d16f76 | Michael Hanselmann | raise NotImplementedError("Synchronous queries are not implemented") |
335 | 24d16f76 | Michael Hanselmann | return self.server.context.glm.OldStyleQueryLocks(fields) |
336 | 19b9ba9a | Michael Hanselmann | |
337 | 3ccafd0e | Iustin Pop | elif method == luxi.REQ_QUEUE_SET_DRAIN_FLAG:
|
338 | 3ccafd0e | Iustin Pop | drain_flag = args |
339 | e566ddbd | Iustin Pop | logging.info("Received queue drain flag change request to %s",
|
340 | e566ddbd | Iustin Pop | drain_flag) |
341 | 3ccafd0e | Iustin Pop | return queue.SetDrainFlag(drain_flag)
|
342 | 3ccafd0e | Iustin Pop | |
343 | 05e50653 | Michael Hanselmann | elif method == luxi.REQ_SET_WATCHER_PAUSE:
|
344 | 05e50653 | Michael Hanselmann | (until, ) = args |
345 | 05e50653 | Michael Hanselmann | |
346 | 05e50653 | Michael Hanselmann | if until is None: |
347 | 05e50653 | Michael Hanselmann | logging.info("Received request to no longer pause the watcher")
|
348 | 05e50653 | Michael Hanselmann | else:
|
349 | 05e50653 | Michael Hanselmann | if not isinstance(until, (int, float)): |
350 | 05e50653 | Michael Hanselmann | raise TypeError("Duration must be an integer or float") |
351 | 05e50653 | Michael Hanselmann | |
352 | 05e50653 | Michael Hanselmann | if until < time.time():
|
353 | 05e50653 | Michael Hanselmann | raise errors.GenericError("Unable to set pause end time in the past") |
354 | 05e50653 | Michael Hanselmann | |
355 | 05e50653 | Michael Hanselmann | logging.info("Received request to pause the watcher until %s", until)
|
356 | 05e50653 | Michael Hanselmann | |
357 | 05e50653 | Michael Hanselmann | return _SetWatcherPause(until)
|
358 | 05e50653 | Michael Hanselmann | |
359 | 0bbe448c | Michael Hanselmann | else:
|
360 | e566ddbd | Iustin Pop | logging.info("Received invalid request '%s'", method)
|
361 | e566ddbd | Iustin Pop | raise ValueError("Invalid operation '%s'" % method) |
362 | ffeffa1d | Iustin Pop | |
363 | ee6c7b94 | Michael Hanselmann | def _Query(self, op): |
364 | ee6c7b94 | Michael Hanselmann | """Runs the specified opcode and returns the result.
|
365 | ee6c7b94 | Michael Hanselmann |
|
366 | ee6c7b94 | Michael Hanselmann | """
|
367 | adfa97e3 | Guido Trotter | # Queries don't have a job id
|
368 | adfa97e3 | Guido Trotter | proc = mcpu.Processor(self.server.context, None) |
369 | 26d3fd2f | Michael Hanselmann | |
370 | 26d3fd2f | Michael Hanselmann | # TODO: Executing an opcode using locks will acquire them in blocking mode.
|
371 | 26d3fd2f | Michael Hanselmann | # Consider using a timeout for retries.
|
372 | 031a3e57 | Michael Hanselmann | return proc.ExecOpCode(op, None) |
373 | ee6c7b94 | Michael Hanselmann | |
374 | ffeffa1d | Iustin Pop | |
375 | 39dcf2ef | Guido Trotter | class GanetiContext(object): |
376 | 39dcf2ef | Guido Trotter | """Context common to all ganeti threads.
|
377 | 39dcf2ef | Guido Trotter |
|
378 | 39dcf2ef | Guido Trotter | This class creates and holds common objects shared by all threads.
|
379 | 39dcf2ef | Guido Trotter |
|
380 | 39dcf2ef | Guido Trotter | """
|
381 | 7260cfbe | Iustin Pop | # pylint: disable-msg=W0212
|
382 | 7260cfbe | Iustin Pop | # we do want to ensure a singleton here
|
383 | 39dcf2ef | Guido Trotter | _instance = None
|
384 | 39dcf2ef | Guido Trotter | |
385 | 39dcf2ef | Guido Trotter | def __init__(self): |
386 | 39dcf2ef | Guido Trotter | """Constructs a new GanetiContext object.
|
387 | 39dcf2ef | Guido Trotter |
|
388 | 39dcf2ef | Guido Trotter | There should be only a GanetiContext object at any time, so this
|
389 | 39dcf2ef | Guido Trotter | function raises an error if this is not the case.
|
390 | 39dcf2ef | Guido Trotter |
|
391 | 39dcf2ef | Guido Trotter | """
|
392 | 39dcf2ef | Guido Trotter | assert self.__class__._instance is None, "double GanetiContext instance" |
393 | 39dcf2ef | Guido Trotter | |
394 | 9113300d | Michael Hanselmann | # Create global configuration object
|
395 | 39dcf2ef | Guido Trotter | self.cfg = config.ConfigWriter()
|
396 | 9113300d | Michael Hanselmann | |
397 | 9113300d | Michael Hanselmann | # Locking manager
|
398 | 984f7c32 | Guido Trotter | self.glm = locking.GanetiLockManager(
|
399 | 39dcf2ef | Guido Trotter | self.cfg.GetNodeList(),
|
400 | 819ca990 | Guido Trotter | self.cfg.GetNodeGroupList(),
|
401 | 39dcf2ef | Guido Trotter | self.cfg.GetInstanceList())
|
402 | 39dcf2ef | Guido Trotter | |
403 | 9113300d | Michael Hanselmann | # Job queue
|
404 | 9113300d | Michael Hanselmann | self.jobqueue = jqueue.JobQueue(self) |
405 | 9113300d | Michael Hanselmann | |
406 | 39dcf2ef | Guido Trotter | # setting this also locks the class against attribute modifications
|
407 | 39dcf2ef | Guido Trotter | self.__class__._instance = self |
408 | 39dcf2ef | Guido Trotter | |
409 | 39dcf2ef | Guido Trotter | def __setattr__(self, name, value): |
410 | 39dcf2ef | Guido Trotter | """Setting GanetiContext attributes is forbidden after initialization.
|
411 | 39dcf2ef | Guido Trotter |
|
412 | 39dcf2ef | Guido Trotter | """
|
413 | 39dcf2ef | Guido Trotter | assert self.__class__._instance is None, "Attempt to modify Ganeti Context" |
414 | 39dcf2ef | Guido Trotter | object.__setattr__(self, name, value) |
415 | 39dcf2ef | Guido Trotter | |
416 | 0debfb35 | Guido Trotter | def AddNode(self, node, ec_id): |
417 | d8470559 | Michael Hanselmann | """Adds a node to the configuration and lock manager.
|
418 | d8470559 | Michael Hanselmann |
|
419 | d8470559 | Michael Hanselmann | """
|
420 | d8470559 | Michael Hanselmann | # Add it to the configuration
|
421 | 0debfb35 | Guido Trotter | self.cfg.AddNode(node, ec_id)
|
422 | d8470559 | Michael Hanselmann | |
423 | c36176cc | Michael Hanselmann | # If preseeding fails it'll not be added
|
424 | 99aabbed | Iustin Pop | self.jobqueue.AddNode(node)
|
425 | c36176cc | Michael Hanselmann | |
426 | d8470559 | Michael Hanselmann | # Add the new node to the Ganeti Lock Manager
|
427 | d8470559 | Michael Hanselmann | self.glm.add(locking.LEVEL_NODE, node.name)
|
428 | d8470559 | Michael Hanselmann | |
429 | d8470559 | Michael Hanselmann | def ReaddNode(self, node): |
430 | d8470559 | Michael Hanselmann | """Updates a node that's already in the configuration
|
431 | d8470559 | Michael Hanselmann |
|
432 | d8470559 | Michael Hanselmann | """
|
433 | c36176cc | Michael Hanselmann | # Synchronize the queue again
|
434 | 99aabbed | Iustin Pop | self.jobqueue.AddNode(node)
|
435 | d8470559 | Michael Hanselmann | |
436 | d8470559 | Michael Hanselmann | def RemoveNode(self, name): |
437 | d8470559 | Michael Hanselmann | """Removes a node from the configuration and lock manager.
|
438 | d8470559 | Michael Hanselmann |
|
439 | d8470559 | Michael Hanselmann | """
|
440 | d8470559 | Michael Hanselmann | # Remove node from configuration
|
441 | d8470559 | Michael Hanselmann | self.cfg.RemoveNode(name)
|
442 | d8470559 | Michael Hanselmann | |
443 | c36176cc | Michael Hanselmann | # Notify job queue
|
444 | c36176cc | Michael Hanselmann | self.jobqueue.RemoveNode(name)
|
445 | c36176cc | Michael Hanselmann | |
446 | d8470559 | Michael Hanselmann | # Remove the node from the Ganeti Lock Manager
|
447 | d8470559 | Michael Hanselmann | self.glm.remove(locking.LEVEL_NODE, name)
|
448 | d8470559 | Michael Hanselmann | |
449 | 39dcf2ef | Guido Trotter | |
450 | 05e50653 | Michael Hanselmann | def _SetWatcherPause(until): |
451 | 05e50653 | Michael Hanselmann | """Creates or removes the watcher pause file.
|
452 | 05e50653 | Michael Hanselmann |
|
453 | 05e50653 | Michael Hanselmann | @type until: None or int
|
454 | 05e50653 | Michael Hanselmann | @param until: Unix timestamp saying until when the watcher shouldn't run
|
455 | 05e50653 | Michael Hanselmann |
|
456 | 05e50653 | Michael Hanselmann | """
|
457 | 05e50653 | Michael Hanselmann | if until is None: |
458 | 05e50653 | Michael Hanselmann | utils.RemoveFile(constants.WATCHER_PAUSEFILE) |
459 | 05e50653 | Michael Hanselmann | else:
|
460 | 05e50653 | Michael Hanselmann | utils.WriteFile(constants.WATCHER_PAUSEFILE, |
461 | 05e50653 | Michael Hanselmann | data="%d\n" % (until, ))
|
462 | 05e50653 | Michael Hanselmann | |
463 | 28b498cd | Michael Hanselmann | return until
|
464 | 28b498cd | Michael Hanselmann | |
465 | 05e50653 | Michael Hanselmann | |
466 | e0e916fe | Iustin Pop | @rpc.RunWithRPC
|
467 | 36205981 | Iustin Pop | def CheckAgreement(): |
468 | 36205981 | Iustin Pop | """Check the agreement on who is the master.
|
469 | 36205981 | Iustin Pop |
|
470 | 36205981 | Iustin Pop | The function uses a very simple algorithm: we must get more positive
|
471 | 36205981 | Iustin Pop | than negative answers. Since in most of the cases we are the master,
|
472 | 36205981 | Iustin Pop | we'll use our own config file for getting the node list. In the
|
473 | 36205981 | Iustin Pop | future we could collect the current node list from our (possibly
|
474 | 36205981 | Iustin Pop | obsolete) known nodes.
|
475 | 36205981 | Iustin Pop |
|
476 | d7cdb55d | Iustin Pop | In order to account for cold-start of all nodes, we retry for up to
|
477 | d7cdb55d | Iustin Pop | a minute until we get a real answer as the top-voted one. If the
|
478 | d7cdb55d | Iustin Pop | nodes are more out-of-sync, for now manual startup of the master
|
479 | d7cdb55d | Iustin Pop | should be attempted.
|
480 | d7cdb55d | Iustin Pop |
|
481 | d7cdb55d | Iustin Pop | Note that for a even number of nodes cluster, we need at least half
|
482 | d7cdb55d | Iustin Pop | of the nodes (beside ourselves) to vote for us. This creates a
|
483 | d7cdb55d | Iustin Pop | problem on two-node clusters, since in this case we require the
|
484 | d7cdb55d | Iustin Pop | other node to be up too to confirm our status.
|
485 | d7cdb55d | Iustin Pop |
|
486 | 36205981 | Iustin Pop | """
|
487 | b705c7a6 | Manuel Franceschini | myself = netutils.Hostname.GetSysName() |
488 | 36205981 | Iustin Pop | #temp instantiation of a config writer, used only to get the node list
|
489 | 36205981 | Iustin Pop | cfg = config.ConfigWriter() |
490 | 36205981 | Iustin Pop | node_list = cfg.GetNodeList() |
491 | 36205981 | Iustin Pop | del cfg
|
492 | d7cdb55d | Iustin Pop | retries = 6
|
493 | d7cdb55d | Iustin Pop | while retries > 0: |
494 | d7cdb55d | Iustin Pop | votes = bootstrap.GatherMasterVotes(node_list) |
495 | d7cdb55d | Iustin Pop | if not votes: |
496 | d7cdb55d | Iustin Pop | # empty node list, this is a one node cluster
|
497 | d7cdb55d | Iustin Pop | return True |
498 | d7cdb55d | Iustin Pop | if votes[0][0] is None: |
499 | d7cdb55d | Iustin Pop | retries -= 1
|
500 | d7cdb55d | Iustin Pop | time.sleep(10)
|
501 | 36205981 | Iustin Pop | continue
|
502 | d7cdb55d | Iustin Pop | break
|
503 | d7cdb55d | Iustin Pop | if retries == 0: |
504 | e09fdcfa | Iustin Pop | logging.critical("Cluster inconsistent, most of the nodes didn't answer"
|
505 | e09fdcfa | Iustin Pop | " after multiple retries. Aborting startup")
|
506 | d8f5a37d | Iustin Pop | logging.critical("Use the --no-voting option if you understand what"
|
507 | d8f5a37d | Iustin Pop | " effects it has on the cluster state")
|
508 | e09fdcfa | Iustin Pop | return False |
509 | d7cdb55d | Iustin Pop | # here a real node is at the top of the list
|
510 | d7cdb55d | Iustin Pop | all_votes = sum(item[1] for item in votes) |
511 | d7cdb55d | Iustin Pop | top_node, top_votes = votes[0]
|
512 | 8a20c732 | Michael Hanselmann | |
513 | d7cdb55d | Iustin Pop | result = False
|
514 | d7cdb55d | Iustin Pop | if top_node != myself:
|
515 | d7cdb55d | Iustin Pop | logging.critical("It seems we are not the master (top-voted node"
|
516 | bbe19c17 | Iustin Pop | " is %s with %d out of %d votes)", top_node, top_votes,
|
517 | bbe19c17 | Iustin Pop | all_votes) |
518 | d7cdb55d | Iustin Pop | elif top_votes < all_votes - top_votes:
|
519 | 36205981 | Iustin Pop | logging.critical("It seems we are not the master (%d votes for,"
|
520 | d7cdb55d | Iustin Pop | " %d votes against)", top_votes, all_votes - top_votes)
|
521 | d7cdb55d | Iustin Pop | else:
|
522 | d7cdb55d | Iustin Pop | result = True
|
523 | d7cdb55d | Iustin Pop | |
524 | d7cdb55d | Iustin Pop | return result
|
525 | 36205981 | Iustin Pop | |
526 | 6c948699 | Michael Hanselmann | |
527 | 340f4757 | Iustin Pop | @rpc.RunWithRPC
|
528 | 340f4757 | Iustin Pop | def ActivateMasterIP(): |
529 | 340f4757 | Iustin Pop | # activate ip
|
530 | 340f4757 | Iustin Pop | master_node = ssconf.SimpleStore().GetMasterNode() |
531 | 340f4757 | Iustin Pop | result = rpc.RpcRunner.call_node_start_master(master_node, False, False) |
532 | 340f4757 | Iustin Pop | msg = result.fail_msg |
533 | 340f4757 | Iustin Pop | if msg:
|
534 | 340f4757 | Iustin Pop | logging.error("Can't activate master IP address: %s", msg)
|
535 | 340f4757 | Iustin Pop | |
536 | 340f4757 | Iustin Pop | |
537 | ed0efaa5 | Michael Hanselmann | def CheckMasterd(options, args): |
538 | ed0efaa5 | Michael Hanselmann | """Initial checks whether to run or exit with a failure.
|
539 | ed0efaa5 | Michael Hanselmann |
|
540 | ed0efaa5 | Michael Hanselmann | """
|
541 | f93427cd | Iustin Pop | if args: # masterd doesn't take any arguments |
542 | f93427cd | Iustin Pop | print >> sys.stderr, ("Usage: %s [-f] [-d]" % sys.argv[0]) |
543 | f93427cd | Iustin Pop | sys.exit(constants.EXIT_FAILURE) |
544 | f93427cd | Iustin Pop | |
545 | ed0efaa5 | Michael Hanselmann | ssconf.CheckMaster(options.debug) |
546 | ed0efaa5 | Michael Hanselmann | |
547 | bbfd0568 | René Nussbaumer | try:
|
548 | bbfd0568 | René Nussbaumer | options.uid = pwd.getpwnam(constants.MASTERD_USER).pw_uid |
549 | bbfd0568 | René Nussbaumer | options.gid = grp.getgrnam(constants.DAEMONS_GROUP).gr_gid |
550 | bbfd0568 | René Nussbaumer | except KeyError: |
551 | bbfd0568 | René Nussbaumer | print >> sys.stderr, ("User or group not existing on system: %s:%s" % |
552 | bbfd0568 | René Nussbaumer | (constants.MASTERD_USER, constants.DAEMONS_GROUP)) |
553 | bbfd0568 | René Nussbaumer | sys.exit(constants.EXIT_FAILURE) |
554 | bbfd0568 | René Nussbaumer | |
555 | 4b63dc7a | Iustin Pop | # Check the configuration is sane before anything else
|
556 | 4b63dc7a | Iustin Pop | try:
|
557 | 4b63dc7a | Iustin Pop | config.ConfigWriter() |
558 | 4b63dc7a | Iustin Pop | except errors.ConfigVersionMismatch, err:
|
559 | 4b63dc7a | Iustin Pop | v1 = "%s.%s.%s" % constants.SplitVersion(err.args[0]) |
560 | 4b63dc7a | Iustin Pop | v2 = "%s.%s.%s" % constants.SplitVersion(err.args[1]) |
561 | 4b63dc7a | Iustin Pop | print >> sys.stderr, \
|
562 | 4b63dc7a | Iustin Pop | ("Configuration version mismatch. The current Ganeti software"
|
563 | 4b63dc7a | Iustin Pop | " expects version %s, but the on-disk configuration file has"
|
564 | 4b63dc7a | Iustin Pop | " version %s. This is likely the result of upgrading the"
|
565 | 4b63dc7a | Iustin Pop | " software without running the upgrade procedure. Please contact"
|
566 | 4b63dc7a | Iustin Pop | " your cluster administrator or complete the upgrade using the"
|
567 | 4b63dc7a | Iustin Pop | " cfgupgrade utility, after reading the upgrade notes." %
|
568 | 4b63dc7a | Iustin Pop | (v1, v2)) |
569 | 4b63dc7a | Iustin Pop | sys.exit(constants.EXIT_FAILURE) |
570 | 4b63dc7a | Iustin Pop | except errors.ConfigurationError, err:
|
571 | 4b63dc7a | Iustin Pop | print >> sys.stderr, \
|
572 | 4b63dc7a | Iustin Pop | ("Configuration error while opening the configuration file: %s\n"
|
573 | 4b63dc7a | Iustin Pop | "This might be caused by an incomplete software upgrade or"
|
574 | 4b63dc7a | Iustin Pop | " by a corrupted configuration file. Until the problem is fixed"
|
575 | 4b63dc7a | Iustin Pop | " the master daemon cannot start." % str(err)) |
576 | 4b63dc7a | Iustin Pop | sys.exit(constants.EXIT_FAILURE) |
577 | bbfd0568 | René Nussbaumer | |
578 | ed0efaa5 | Michael Hanselmann | # If CheckMaster didn't fail we believe we are the master, but we have to
|
579 | ed0efaa5 | Michael Hanselmann | # confirm with the other nodes.
|
580 | ed0efaa5 | Michael Hanselmann | if options.no_voting:
|
581 | ed0efaa5 | Michael Hanselmann | if options.yes_do_it:
|
582 | ed0efaa5 | Michael Hanselmann | return
|
583 | ed0efaa5 | Michael Hanselmann | |
584 | ed0efaa5 | Michael Hanselmann | sys.stdout.write("The 'no voting' option has been selected.\n")
|
585 | ed0efaa5 | Michael Hanselmann | sys.stdout.write("This is dangerous, please confirm by"
|
586 | ed0efaa5 | Michael Hanselmann | " typing uppercase 'yes': ")
|
587 | ed0efaa5 | Michael Hanselmann | sys.stdout.flush() |
588 | ed0efaa5 | Michael Hanselmann | |
589 | ed0efaa5 | Michael Hanselmann | confirmation = sys.stdin.readline().strip() |
590 | ed0efaa5 | Michael Hanselmann | if confirmation != "YES": |
591 | 7260cfbe | Iustin Pop | print >> sys.stderr, "Aborting." |
592 | ed0efaa5 | Michael Hanselmann | sys.exit(constants.EXIT_FAILURE) |
593 | ed0efaa5 | Michael Hanselmann | |
594 | ed0efaa5 | Michael Hanselmann | return
|
595 | ed0efaa5 | Michael Hanselmann | |
596 | ed0efaa5 | Michael Hanselmann | # CheckAgreement uses RPC and threads, hence it needs to be run in a separate
|
597 | ed0efaa5 | Michael Hanselmann | # process before we call utils.Daemonize in the current process.
|
598 | e0e916fe | Iustin Pop | if not utils.RunInSeparateProcess(CheckAgreement): |
599 | ed0efaa5 | Michael Hanselmann | sys.exit(constants.EXIT_FAILURE) |
600 | ed0efaa5 | Michael Hanselmann | |
601 | 340f4757 | Iustin Pop | # ActivateMasterIP also uses RPC/threads, so we run it again via a
|
602 | 340f4757 | Iustin Pop | # separate process.
|
603 | 340f4757 | Iustin Pop | |
604 | 340f4757 | Iustin Pop | # TODO: decide whether failure to activate the master IP is a fatal error
|
605 | 340f4757 | Iustin Pop | utils.RunInSeparateProcess(ActivateMasterIP) |
606 | 340f4757 | Iustin Pop | |
607 | ed0efaa5 | Michael Hanselmann | |
608 | 3ee53f1f | Iustin Pop | def PrepMasterd(options, _): |
609 | 3ee53f1f | Iustin Pop | """Prep master daemon function, executed with the PID file held.
|
610 | 3b316acb | Iustin Pop |
|
611 | 04ccf5e9 | Guido Trotter | """
|
612 | 04ccf5e9 | Guido Trotter | # This is safe to do as the pid file guarantees against
|
613 | 04ccf5e9 | Guido Trotter | # concurrent execution.
|
614 | 04ccf5e9 | Guido Trotter | utils.RemoveFile(constants.MASTER_SOCKET) |
615 | b1b6ea87 | Iustin Pop | |
616 | cdd7f900 | Guido Trotter | mainloop = daemon.Mainloop() |
617 | 7e5a6e86 | Guido Trotter | master = MasterServer(mainloop, constants.MASTER_SOCKET, |
618 | bbfd0568 | René Nussbaumer | options.uid, options.gid) |
619 | 3ee53f1f | Iustin Pop | return (mainloop, master)
|
620 | 3ee53f1f | Iustin Pop | |
621 | 3ee53f1f | Iustin Pop | |
622 | 3ee53f1f | Iustin Pop | def ExecMasterd(options, args, prep_data): # pylint: disable-msg=W0613 |
623 | 3ee53f1f | Iustin Pop | """Main master daemon function, executed with the PID file held.
|
624 | 3ee53f1f | Iustin Pop |
|
625 | 3ee53f1f | Iustin Pop | """
|
626 | 3ee53f1f | Iustin Pop | (mainloop, master) = prep_data |
627 | 04ccf5e9 | Guido Trotter | try:
|
628 | 15486fa7 | Michael Hanselmann | rpc.Init() |
629 | 4331f6cd | Michael Hanselmann | try:
|
630 | 15486fa7 | Michael Hanselmann | master.setup_queue() |
631 | 15486fa7 | Michael Hanselmann | try:
|
632 | cdd7f900 | Guido Trotter | mainloop.Run() |
633 | 15486fa7 | Michael Hanselmann | finally:
|
634 | 15486fa7 | Michael Hanselmann | master.server_cleanup() |
635 | 4331f6cd | Michael Hanselmann | finally:
|
636 | 15486fa7 | Michael Hanselmann | rpc.Shutdown() |
637 | a4af651e | Iustin Pop | finally:
|
638 | 227647ac | Guido Trotter | utils.RemoveFile(constants.MASTER_SOCKET) |
639 | a4af651e | Iustin Pop | |
640 | ffeffa1d | Iustin Pop | |
641 | 29d91329 | Michael Hanselmann | def Main(): |
642 | 04ccf5e9 | Guido Trotter | """Main function"""
|
643 | 04ccf5e9 | Guido Trotter | parser = OptionParser(description="Ganeti master daemon",
|
644 | 04ccf5e9 | Guido Trotter | usage="%prog [-f] [-d]",
|
645 | 04ccf5e9 | Guido Trotter | version="%%prog (ganeti) %s" %
|
646 | 04ccf5e9 | Guido Trotter | constants.RELEASE_VERSION) |
647 | 04ccf5e9 | Guido Trotter | parser.add_option("--no-voting", dest="no_voting", |
648 | 04ccf5e9 | Guido Trotter | help="Do not check that the nodes agree on this node"
|
649 | 04ccf5e9 | Guido Trotter | " being the master and start the daemon unconditionally",
|
650 | 04ccf5e9 | Guido Trotter | default=False, action="store_true") |
651 | 04ccf5e9 | Guido Trotter | parser.add_option("--yes-do-it", dest="yes_do_it", |
652 | 04ccf5e9 | Guido Trotter | help="Override interactive check for --no-voting",
|
653 | 04ccf5e9 | Guido Trotter | default=False, action="store_true") |
654 | 3ee53f1f | Iustin Pop | daemon.GenericMain(constants.MASTERD, parser, CheckMasterd, PrepMasterd, |
655 | b42ea9ed | Iustin Pop | ExecMasterd, multithreaded=True) |