root / lib / server / masterd.py @ e75d9a84
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# Copyright (C) 2006, 2007, 2010, 2011, 2012 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Master daemon program.
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Some classes deviates from the standard style guide since the
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inheritance from parent classes requires it.
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"""
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# pylint: disable=C0103
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# C0103: Invalid name ganeti-masterd
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import grp |
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import os |
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import pwd |
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import sys |
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import socket |
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import time |
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import tempfile |
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import logging |
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from optparse import OptionParser |
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from ganeti import config |
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from ganeti import constants |
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from ganeti import daemon |
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from ganeti import mcpu |
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from ganeti import opcodes |
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from ganeti import jqueue |
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from ganeti import locking |
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from ganeti import luxi |
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from ganeti import utils |
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from ganeti import errors |
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from ganeti import ssconf |
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from ganeti import workerpool |
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from ganeti import rpc |
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from ganeti import bootstrap |
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from ganeti import netutils |
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from ganeti import objects |
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from ganeti import query |
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from ganeti import runtime |
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from ganeti import pathutils |
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CLIENT_REQUEST_WORKERS = 16
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EXIT_NOTMASTER = constants.EXIT_NOTMASTER |
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EXIT_NODESETUP_ERROR = constants.EXIT_NODESETUP_ERROR |
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class ClientRequestWorker(workerpool.BaseWorker): |
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# pylint: disable=W0221
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def RunTask(self, server, message, client): |
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"""Process the request.
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"""
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client_ops = ClientOps(server) |
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try:
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(method, args, version) = luxi.ParseRequest(message) |
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except luxi.ProtocolError, err:
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logging.error("Protocol Error: %s", err)
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client.close_log() |
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return
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success = False
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try:
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# Verify client's version if there was one in the request
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if version is not None and version != constants.LUXI_VERSION: |
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raise errors.LuxiError("LUXI version mismatch, server %s, request %s" % |
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(constants.LUXI_VERSION, version)) |
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result = client_ops.handle_request(method, args) |
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success = True
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except errors.GenericError, err:
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logging.exception("Unexpected exception")
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success = False
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result = errors.EncodeException(err) |
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except:
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logging.exception("Unexpected exception")
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err = sys.exc_info() |
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result = "Caught exception: %s" % str(err[1]) |
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try:
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reply = luxi.FormatResponse(success, result) |
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client.send_message(reply) |
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# awake the main thread so that it can write out the data.
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server.awaker.signal() |
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except: # pylint: disable=W0702 |
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logging.exception("Send error")
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client.close_log() |
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class MasterClientHandler(daemon.AsyncTerminatedMessageStream): |
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"""Handler for master peers.
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"""
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_MAX_UNHANDLED = 1
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def __init__(self, server, connected_socket, client_address, family): |
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daemon.AsyncTerminatedMessageStream.__init__(self, connected_socket,
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client_address, |
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constants.LUXI_EOM, |
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family, self._MAX_UNHANDLED)
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self.server = server
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def handle_message(self, message, _): |
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self.server.request_workers.AddTask((self.server, message, self)) |
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class _MasterShutdownCheck: |
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"""Logic for master daemon shutdown.
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"""
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#: How long to wait between checks
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_CHECK_INTERVAL = 5.0
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#: How long to wait after all jobs are done (e.g. to give clients time to
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#: retrieve the job status)
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_SHUTDOWN_LINGER = 5.0
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def __init__(self): |
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"""Initializes this class.
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"""
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self._had_active_jobs = None |
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self._linger_timeout = None |
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def __call__(self, jq_prepare_result): |
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"""Determines if master daemon is ready for shutdown.
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@param jq_prepare_result: Result of L{jqueue.JobQueue.PrepareShutdown}
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@rtype: None or number
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@return: None if master daemon is ready, timeout if the check must be
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repeated
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"""
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if jq_prepare_result:
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# Check again shortly
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logging.info("Job queue has been notified for shutdown but is still"
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" busy; next check in %s seconds", self._CHECK_INTERVAL) |
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self._had_active_jobs = True |
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return self._CHECK_INTERVAL |
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if not self._had_active_jobs: |
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# Can shut down as there were no active jobs on the first check
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return None |
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# No jobs are running anymore, but maybe some clients want to collect some
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# information. Give them a short amount of time.
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if self._linger_timeout is None: |
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self._linger_timeout = utils.RunningTimeout(self._SHUTDOWN_LINGER, True) |
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remaining = self._linger_timeout.Remaining()
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logging.info("Job queue no longer busy; shutting down master daemon"
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" in %s seconds", remaining)
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# TODO: Should the master daemon socket be closed at this point? Doing so
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# wouldn't affect existing connections.
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if remaining < 0: |
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return None |
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else:
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return remaining
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class MasterServer(daemon.AsyncStreamServer): |
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"""Master Server.
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This is the main asynchronous master server. It handles connections to the
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master socket.
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"""
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family = socket.AF_UNIX |
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def __init__(self, address, uid, gid): |
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"""MasterServer constructor
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@param address: the unix socket address to bind the MasterServer to
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@param uid: The uid of the owner of the socket
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@param gid: The gid of the owner of the socket
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"""
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temp_name = tempfile.mktemp(dir=os.path.dirname(address)) |
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daemon.AsyncStreamServer.__init__(self, self.family, temp_name) |
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os.chmod(temp_name, 0770)
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os.chown(temp_name, uid, gid) |
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os.rename(temp_name, address) |
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self.awaker = daemon.AsyncAwaker()
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# We'll only start threads once we've forked.
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self.context = None |
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self.request_workers = None |
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self._shutdown_check = None |
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def handle_connection(self, connected_socket, client_address): |
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# TODO: add connection count and limit the number of open connections to a
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# maximum number to avoid breaking for lack of file descriptors or memory.
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MasterClientHandler(self, connected_socket, client_address, self.family) |
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def setup_queue(self): |
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self.context = GanetiContext()
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self.request_workers = workerpool.WorkerPool("ClientReq", |
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CLIENT_REQUEST_WORKERS, |
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ClientRequestWorker) |
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def WaitForShutdown(self): |
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"""Prepares server for shutdown.
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"""
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if self._shutdown_check is None: |
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self._shutdown_check = _MasterShutdownCheck()
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return self._shutdown_check(self.context.jobqueue.PrepareShutdown()) |
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def server_cleanup(self): |
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"""Cleanup the server.
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This involves shutting down the processor threads and the master
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socket.
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"""
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try:
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self.close()
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finally:
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if self.request_workers: |
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self.request_workers.TerminateWorkers()
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if self.context: |
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self.context.jobqueue.Shutdown()
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class ClientOps: |
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"""Class holding high-level client operations."""
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def __init__(self, server): |
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self.server = server
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def handle_request(self, method, args): # pylint: disable=R0911 |
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context = self.server.context
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queue = context.jobqueue |
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# TODO: Parameter validation
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if not isinstance(args, (tuple, list)): |
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logging.info("Received invalid arguments of type '%s'", type(args)) |
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raise ValueError("Invalid arguments type '%s'" % type(args)) |
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# TODO: Rewrite to not exit in each 'if/elif' branch
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if method == luxi.REQ_SUBMIT_JOB:
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logging.info("Received new job")
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(job_def, ) = args |
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ops = [opcodes.OpCode.LoadOpCode(state) for state in job_def] |
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return queue.SubmitJob(ops)
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elif method == luxi.REQ_SUBMIT_MANY_JOBS:
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logging.info("Received multiple jobs")
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(job_defs, ) = args |
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jobs = [] |
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for ops in job_defs: |
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jobs.append([opcodes.OpCode.LoadOpCode(state) for state in ops]) |
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return queue.SubmitManyJobs(jobs)
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elif method == luxi.REQ_CANCEL_JOB:
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(job_id, ) = args |
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logging.info("Received job cancel request for %s", job_id)
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return queue.CancelJob(job_id)
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elif method == luxi.REQ_ARCHIVE_JOB:
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(job_id, ) = args |
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logging.info("Received job archive request for %s", job_id)
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return queue.ArchiveJob(job_id)
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elif method == luxi.REQ_AUTO_ARCHIVE_JOBS:
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(age, timeout) = args |
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logging.info("Received job autoarchive request for age %s, timeout %s",
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age, timeout) |
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return queue.AutoArchiveJobs(age, timeout)
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elif method == luxi.REQ_WAIT_FOR_JOB_CHANGE:
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(job_id, fields, prev_job_info, prev_log_serial, timeout) = args |
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logging.info("Received job poll request for %s", job_id)
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return queue.WaitForJobChanges(job_id, fields, prev_job_info,
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prev_log_serial, timeout) |
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elif method == luxi.REQ_QUERY:
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(what, fields, qfilter) = args |
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if what in constants.QR_VIA_OP: |
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result = self._Query(opcodes.OpQuery(what=what, fields=fields,
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qfilter=qfilter)) |
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elif what == constants.QR_LOCK:
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if qfilter is not None: |
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raise errors.OpPrereqError("Lock queries can't be filtered", |
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errors.ECODE_INVAL) |
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return context.glm.QueryLocks(fields)
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elif what == constants.QR_JOB:
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return queue.QueryJobs(fields, qfilter)
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elif what in constants.QR_VIA_LUXI: |
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raise NotImplementedError |
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else:
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raise errors.OpPrereqError("Resource type '%s' unknown" % what, |
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errors.ECODE_INVAL) |
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return result
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elif method == luxi.REQ_QUERY_FIELDS:
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(what, fields) = args |
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req = objects.QueryFieldsRequest(what=what, fields=fields) |
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try:
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fielddefs = query.ALL_FIELDS[req.what] |
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except KeyError: |
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raise errors.OpPrereqError("Resource type '%s' unknown" % req.what, |
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errors.ECODE_INVAL) |
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return query.QueryFields(fielddefs, req.fields)
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elif method == luxi.REQ_QUERY_JOBS:
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(job_ids, fields) = args |
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if isinstance(job_ids, (tuple, list)) and job_ids: |
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msg = utils.CommaJoin(job_ids) |
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else:
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msg = str(job_ids)
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logging.info("Received job query request for %s", msg)
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return queue.OldStyleQueryJobs(job_ids, fields)
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elif method == luxi.REQ_QUERY_INSTANCES:
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(names, fields, use_locking) = args |
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logging.info("Received instance query request for %s", names)
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if use_locking:
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raise errors.OpPrereqError("Sync queries are not allowed", |
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errors.ECODE_INVAL) |
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op = opcodes.OpInstanceQuery(names=names, output_fields=fields, |
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use_locking=use_locking) |
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return self._Query(op) |
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elif method == luxi.REQ_QUERY_NODES:
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(names, fields, use_locking) = args |
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logging.info("Received node query request for %s", names)
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if use_locking:
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raise errors.OpPrereqError("Sync queries are not allowed", |
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errors.ECODE_INVAL) |
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op = opcodes.OpNodeQuery(names=names, output_fields=fields, |
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use_locking=use_locking) |
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return self._Query(op) |
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elif method == luxi.REQ_QUERY_GROUPS:
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(names, fields, use_locking) = args |
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logging.info("Received group query request for %s", names)
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if use_locking:
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raise errors.OpPrereqError("Sync queries are not allowed", |
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errors.ECODE_INVAL) |
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op = opcodes.OpGroupQuery(names=names, output_fields=fields) |
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return self._Query(op) |
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elif method == luxi.REQ_QUERY_NETWORKS:
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(names, fields, use_locking) = args |
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logging.info("Received network query request for %s", names)
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if use_locking:
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raise errors.OpPrereqError("Sync queries are not allowed", |
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errors.ECODE_INVAL) |
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op = opcodes.OpNetworkQuery(names=names, output_fields=fields) |
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return self._Query(op) |
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elif method == luxi.REQ_QUERY_EXPORTS:
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(nodes, use_locking) = args |
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if use_locking:
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raise errors.OpPrereqError("Sync queries are not allowed", |
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errors.ECODE_INVAL) |
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logging.info("Received exports query request")
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op = opcodes.OpBackupQuery(nodes=nodes, use_locking=use_locking) |
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return self._Query(op) |
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elif method == luxi.REQ_QUERY_CONFIG_VALUES:
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(fields, ) = args |
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logging.info("Received config values query request for %s", fields)
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op = opcodes.OpClusterConfigQuery(output_fields=fields) |
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return self._Query(op) |
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elif method == luxi.REQ_QUERY_CLUSTER_INFO:
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logging.info("Received cluster info query request")
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op = opcodes.OpClusterQuery() |
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return self._Query(op) |
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elif method == luxi.REQ_QUERY_TAGS:
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(kind, name) = args |
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logging.info("Received tags query request")
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op = opcodes.OpTagsGet(kind=kind, name=name, use_locking=False)
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return self._Query(op) |
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elif method == luxi.REQ_SET_DRAIN_FLAG:
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(drain_flag, ) = args |
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logging.info("Received queue drain flag change request to %s",
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drain_flag) |
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return queue.SetDrainFlag(drain_flag)
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elif method == luxi.REQ_SET_WATCHER_PAUSE:
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(until, ) = args |
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if until is None: |
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logging.info("Received request to no longer pause the watcher")
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else:
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if not isinstance(until, (int, float)): |
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raise TypeError("Duration must be an integer or float") |
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if until < time.time():
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raise errors.GenericError("Unable to set pause end time in the past") |
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logging.info("Received request to pause the watcher until %s", until)
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return _SetWatcherPause(until)
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else:
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logging.info("Received invalid request '%s'", method)
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raise ValueError("Invalid operation '%s'" % method) |
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def _Query(self, op): |
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"""Runs the specified opcode and returns the result.
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"""
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# Queries don't have a job id
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proc = mcpu.Processor(self.server.context, None, enable_locks=False) |
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# TODO: Executing an opcode using locks will acquire them in blocking mode.
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# Consider using a timeout for retries.
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return proc.ExecOpCode(op, None) |
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class GanetiContext(object): |
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"""Context common to all ganeti threads.
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This class creates and holds common objects shared by all threads.
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"""
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# pylint: disable=W0212
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# we do want to ensure a singleton here
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_instance = None
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def __init__(self): |
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"""Constructs a new GanetiContext object.
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There should be only a GanetiContext object at any time, so this
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function raises an error if this is not the case.
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"""
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assert self.__class__._instance is None, "double GanetiContext instance" |
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# Create global configuration object
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self.cfg = config.ConfigWriter()
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# Locking manager
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self.glm = locking.GanetiLockManager(
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self.cfg.GetNodeList(),
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self.cfg.GetNodeGroupList(),
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self.cfg.GetInstanceList(),
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self.cfg.GetNetworkList())
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self.cfg.SetContext(self) |
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# RPC runner
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self.rpc = rpc.RpcRunner(self.cfg, self.glm.AddToLockMonitor) |
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# Job queue
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self.jobqueue = jqueue.JobQueue(self) |
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# setting this also locks the class against attribute modifications
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self.__class__._instance = self |
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def __setattr__(self, name, value): |
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"""Setting GanetiContext attributes is forbidden after initialization.
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"""
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assert self.__class__._instance is None, "Attempt to modify Ganeti Context" |
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object.__setattr__(self, name, value) |
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def AddNode(self, node, ec_id): |
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"""Adds a node to the configuration and lock manager.
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"""
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# Add it to the configuration
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self.cfg.AddNode(node, ec_id)
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# If preseeding fails it'll not be added
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self.jobqueue.AddNode(node)
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# Add the new node to the Ganeti Lock Manager
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self.glm.add(locking.LEVEL_NODE, node.name)
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self.glm.add(locking.LEVEL_NODE_RES, node.name)
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def ReaddNode(self, node): |
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"""Updates a node that's already in the configuration
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"""
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# Synchronize the queue again
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self.jobqueue.AddNode(node)
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def RemoveNode(self, name): |
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"""Removes a node from the configuration and lock manager.
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"""
|
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# Remove node from configuration
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self.cfg.RemoveNode(name)
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|
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# Notify job queue
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self.jobqueue.RemoveNode(name)
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# Remove the node from the Ganeti Lock Manager
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self.glm.remove(locking.LEVEL_NODE, name)
|
530 |
self.glm.remove(locking.LEVEL_NODE_RES, name)
|
531 |
|
532 |
|
533 |
def _SetWatcherPause(until): |
534 |
"""Creates or removes the watcher pause file.
|
535 |
|
536 |
@type until: None or int
|
537 |
@param until: Unix timestamp saying until when the watcher shouldn't run
|
538 |
|
539 |
"""
|
540 |
if until is None: |
541 |
utils.RemoveFile(pathutils.WATCHER_PAUSEFILE) |
542 |
else:
|
543 |
utils.WriteFile(pathutils.WATCHER_PAUSEFILE, |
544 |
data="%d\n" % (until, ))
|
545 |
|
546 |
return until
|
547 |
|
548 |
|
549 |
@rpc.RunWithRPC
|
550 |
def CheckAgreement(): |
551 |
"""Check the agreement on who is the master.
|
552 |
|
553 |
The function uses a very simple algorithm: we must get more positive
|
554 |
than negative answers. Since in most of the cases we are the master,
|
555 |
we'll use our own config file for getting the node list. In the
|
556 |
future we could collect the current node list from our (possibly
|
557 |
obsolete) known nodes.
|
558 |
|
559 |
In order to account for cold-start of all nodes, we retry for up to
|
560 |
a minute until we get a real answer as the top-voted one. If the
|
561 |
nodes are more out-of-sync, for now manual startup of the master
|
562 |
should be attempted.
|
563 |
|
564 |
Note that for a even number of nodes cluster, we need at least half
|
565 |
of the nodes (beside ourselves) to vote for us. This creates a
|
566 |
problem on two-node clusters, since in this case we require the
|
567 |
other node to be up too to confirm our status.
|
568 |
|
569 |
"""
|
570 |
myself = netutils.Hostname.GetSysName() |
571 |
#temp instantiation of a config writer, used only to get the node list
|
572 |
cfg = config.ConfigWriter() |
573 |
node_list = cfg.GetNodeList() |
574 |
del cfg
|
575 |
retries = 6
|
576 |
while retries > 0: |
577 |
votes = bootstrap.GatherMasterVotes(node_list) |
578 |
if not votes: |
579 |
# empty node list, this is a one node cluster
|
580 |
return True |
581 |
if votes[0][0] is None: |
582 |
retries -= 1
|
583 |
time.sleep(10)
|
584 |
continue
|
585 |
break
|
586 |
if retries == 0: |
587 |
logging.critical("Cluster inconsistent, most of the nodes didn't answer"
|
588 |
" after multiple retries. Aborting startup")
|
589 |
logging.critical("Use the --no-voting option if you understand what"
|
590 |
" effects it has on the cluster state")
|
591 |
return False |
592 |
# here a real node is at the top of the list
|
593 |
all_votes = sum(item[1] for item in votes) |
594 |
top_node, top_votes = votes[0]
|
595 |
|
596 |
result = False
|
597 |
if top_node != myself:
|
598 |
logging.critical("It seems we are not the master (top-voted node"
|
599 |
" is %s with %d out of %d votes)", top_node, top_votes,
|
600 |
all_votes) |
601 |
elif top_votes < all_votes - top_votes:
|
602 |
logging.critical("It seems we are not the master (%d votes for,"
|
603 |
" %d votes against)", top_votes, all_votes - top_votes)
|
604 |
else:
|
605 |
result = True
|
606 |
|
607 |
return result
|
608 |
|
609 |
|
610 |
@rpc.RunWithRPC
|
611 |
def ActivateMasterIP(): |
612 |
# activate ip
|
613 |
cfg = config.ConfigWriter() |
614 |
master_params = cfg.GetMasterNetworkParameters() |
615 |
ems = cfg.GetUseExternalMipScript() |
616 |
runner = rpc.BootstrapRunner() |
617 |
result = runner.call_node_activate_master_ip(master_params.name, |
618 |
master_params, ems) |
619 |
|
620 |
msg = result.fail_msg |
621 |
if msg:
|
622 |
logging.error("Can't activate master IP address: %s", msg)
|
623 |
|
624 |
|
625 |
def CheckMasterd(options, args): |
626 |
"""Initial checks whether to run or exit with a failure.
|
627 |
|
628 |
"""
|
629 |
if args: # masterd doesn't take any arguments |
630 |
print >> sys.stderr, ("Usage: %s [-f] [-d]" % sys.argv[0]) |
631 |
sys.exit(constants.EXIT_FAILURE) |
632 |
|
633 |
ssconf.CheckMaster(options.debug) |
634 |
|
635 |
try:
|
636 |
options.uid = pwd.getpwnam(constants.MASTERD_USER).pw_uid |
637 |
options.gid = grp.getgrnam(constants.DAEMONS_GROUP).gr_gid |
638 |
except KeyError: |
639 |
print >> sys.stderr, ("User or group not existing on system: %s:%s" % |
640 |
(constants.MASTERD_USER, constants.DAEMONS_GROUP)) |
641 |
sys.exit(constants.EXIT_FAILURE) |
642 |
|
643 |
# Determine static runtime architecture information
|
644 |
runtime.InitArchInfo() |
645 |
|
646 |
# Check the configuration is sane before anything else
|
647 |
try:
|
648 |
config.ConfigWriter() |
649 |
except errors.ConfigVersionMismatch, err:
|
650 |
v1 = "%s.%s.%s" % constants.SplitVersion(err.args[0]) |
651 |
v2 = "%s.%s.%s" % constants.SplitVersion(err.args[1]) |
652 |
print >> sys.stderr, \
|
653 |
("Configuration version mismatch. The current Ganeti software"
|
654 |
" expects version %s, but the on-disk configuration file has"
|
655 |
" version %s. This is likely the result of upgrading the"
|
656 |
" software without running the upgrade procedure. Please contact"
|
657 |
" your cluster administrator or complete the upgrade using the"
|
658 |
" cfgupgrade utility, after reading the upgrade notes." %
|
659 |
(v1, v2)) |
660 |
sys.exit(constants.EXIT_FAILURE) |
661 |
except errors.ConfigurationError, err:
|
662 |
print >> sys.stderr, \
|
663 |
("Configuration error while opening the configuration file: %s\n"
|
664 |
"This might be caused by an incomplete software upgrade or"
|
665 |
" by a corrupted configuration file. Until the problem is fixed"
|
666 |
" the master daemon cannot start." % str(err)) |
667 |
sys.exit(constants.EXIT_FAILURE) |
668 |
|
669 |
# If CheckMaster didn't fail we believe we are the master, but we have to
|
670 |
# confirm with the other nodes.
|
671 |
if options.no_voting:
|
672 |
if not options.yes_do_it: |
673 |
sys.stdout.write("The 'no voting' option has been selected.\n")
|
674 |
sys.stdout.write("This is dangerous, please confirm by"
|
675 |
" typing uppercase 'yes': ")
|
676 |
sys.stdout.flush() |
677 |
|
678 |
confirmation = sys.stdin.readline().strip() |
679 |
if confirmation != "YES": |
680 |
print >> sys.stderr, "Aborting." |
681 |
sys.exit(constants.EXIT_FAILURE) |
682 |
|
683 |
else:
|
684 |
# CheckAgreement uses RPC and threads, hence it needs to be run in
|
685 |
# a separate process before we call utils.Daemonize in the current
|
686 |
# process.
|
687 |
if not utils.RunInSeparateProcess(CheckAgreement): |
688 |
sys.exit(constants.EXIT_FAILURE) |
689 |
|
690 |
# ActivateMasterIP also uses RPC/threads, so we run it again via a
|
691 |
# separate process.
|
692 |
|
693 |
# TODO: decide whether failure to activate the master IP is a fatal error
|
694 |
utils.RunInSeparateProcess(ActivateMasterIP) |
695 |
|
696 |
|
697 |
def PrepMasterd(options, _): |
698 |
"""Prep master daemon function, executed with the PID file held.
|
699 |
|
700 |
"""
|
701 |
# This is safe to do as the pid file guarantees against
|
702 |
# concurrent execution.
|
703 |
utils.RemoveFile(pathutils.MASTER_SOCKET) |
704 |
|
705 |
mainloop = daemon.Mainloop() |
706 |
master = MasterServer(pathutils.MASTER_SOCKET, options.uid, options.gid) |
707 |
return (mainloop, master)
|
708 |
|
709 |
|
710 |
def ExecMasterd(options, args, prep_data): # pylint: disable=W0613 |
711 |
"""Main master daemon function, executed with the PID file held.
|
712 |
|
713 |
"""
|
714 |
(mainloop, master) = prep_data |
715 |
try:
|
716 |
rpc.Init() |
717 |
try:
|
718 |
master.setup_queue() |
719 |
try:
|
720 |
mainloop.Run(shutdown_wait_fn=master.WaitForShutdown) |
721 |
finally:
|
722 |
master.server_cleanup() |
723 |
finally:
|
724 |
rpc.Shutdown() |
725 |
finally:
|
726 |
utils.RemoveFile(pathutils.MASTER_SOCKET) |
727 |
|
728 |
logging.info("Clean master daemon shutdown")
|
729 |
|
730 |
|
731 |
def Main(): |
732 |
"""Main function"""
|
733 |
parser = OptionParser(description="Ganeti master daemon",
|
734 |
usage="%prog [-f] [-d]",
|
735 |
version="%%prog (ganeti) %s" %
|
736 |
constants.RELEASE_VERSION) |
737 |
parser.add_option("--no-voting", dest="no_voting", |
738 |
help="Do not check that the nodes agree on this node"
|
739 |
" being the master and start the daemon unconditionally",
|
740 |
default=False, action="store_true") |
741 |
parser.add_option("--yes-do-it", dest="yes_do_it", |
742 |
help="Override interactive check for --no-voting",
|
743 |
default=False, action="store_true") |
744 |
daemon.GenericMain(constants.MASTERD, parser, CheckMasterd, PrepMasterd, |
745 |
ExecMasterd, multithreaded=True)
|