root / qa / qa_daemon.py @ 30989e69
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# Copyright (C) 2007 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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"""Daemon related QA tests.
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"""
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import time |
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from ganeti import utils |
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from ganeti import constants |
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import qa_config |
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import qa_utils |
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import qa_error |
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from qa_utils import AssertEqual, StartSSH |
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def _InstanceRunning(node, name): |
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"""Checks whether an instance is running.
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Args:
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node: Node the instance runs on
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name: Full name of Xen instance
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"""
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cmd = utils.ShellQuoteArgs(['xm', 'list', name]) + ' >/dev/null' |
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ret = StartSSH(node['primary'], cmd).wait()
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return ret == 0 |
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def _XmShutdownInstance(node, name): |
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"""Shuts down instance using "xm" and waits for completion.
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Args:
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node: Node the instance runs on
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name: Full name of Xen instance
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"""
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master = qa_config.GetMasterNode() |
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cmd = ['xm', 'shutdown', name] |
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AssertEqual(StartSSH(node['primary'],
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utils.ShellQuoteArgs(cmd)).wait(), 0)
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# Wait up to a minute
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end = time.time() + 60
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while time.time() <= end:
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if not _InstanceRunning(node, name): |
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break
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time.sleep(5)
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else:
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raise qa_error.Error("xm shutdown failed") |
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def _ResetWatcherDaemon(): |
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"""Removes the watcher daemon's state file.
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Args:
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node: Node to be reset
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"""
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master = qa_config.GetMasterNode() |
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cmd = ['rm', '-f', constants.WATCHER_STATEFILE] |
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AssertEqual(StartSSH(master['primary'],
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utils.ShellQuoteArgs(cmd)).wait(), 0)
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def _RunWatcherDaemon(): |
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"""Runs the ganeti-watcher daemon on the master node.
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"""
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master = qa_config.GetMasterNode() |
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cmd = ['ganeti-watcher', '-d'] |
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AssertEqual(StartSSH(master['primary'],
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utils.ShellQuoteArgs(cmd)).wait(), 0)
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def PrintCronWarning(): |
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"""Shows a warning about the cron job.
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"""
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msg = ("For the following tests it's recommended to turn off the"
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" ganeti-watcher cronjob.")
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print
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print qa_utils.FormatWarning(msg)
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@qa_utils.DefineHook('daemon-automatic-restart') |
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def TestInstanceAutomaticRestart(node, instance): |
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"""Test automatic restart of instance by ganeti-watcher.
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"""
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master = qa_config.GetMasterNode() |
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inst_name = qa_utils.ResolveInstanceName(instance) |
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_ResetWatcherDaemon() |
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_XmShutdownInstance(node, inst_name) |
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_RunWatcherDaemon() |
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time.sleep(5)
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if not _InstanceRunning(node, inst_name): |
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raise qa_error.Error("Daemon didn't restart instance") |
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cmd = ['gnt-instance', 'info', inst_name] |
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AssertEqual(StartSSH(master['primary'],
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utils.ShellQuoteArgs(cmd)).wait(), 0)
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@qa_utils.DefineHook('daemon-consecutive-failures') |
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def TestInstanceConsecutiveFailures(node, instance): |
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"""Test five consecutive instance failures.
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"""
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master = qa_config.GetMasterNode() |
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inst_name = qa_utils.ResolveInstanceName(instance) |
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_ResetWatcherDaemon() |
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for should_start in ([True] * 5) + [False]: |
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_XmShutdownInstance(node, inst_name) |
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_RunWatcherDaemon() |
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time.sleep(5)
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if bool(_InstanceRunning(node, inst_name)) != should_start: |
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if should_start:
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msg = "Instance not started when it should"
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else:
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msg = "Instance started when it shouldn't"
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raise qa_error.Error(msg)
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cmd = ['gnt-instance', 'info', inst_name] |
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AssertEqual(StartSSH(master['primary'],
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utils.ShellQuoteArgs(cmd)).wait(), 0)
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