root / qa / qa_daemon.py @ 2237687b
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# Copyright (C) 2007, 2008, 2009, 2010 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 AssertMatch, AssertCommand, StartSSH, GetCommandOutput |
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def _InstanceRunning(node, name): |
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"""Checks whether an instance is running.
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@param node: node the instance runs on
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@param name: full name of the 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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@param node: node the instance runs on
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@param name: full name of Xen instance
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"""
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AssertCommand(["xm", "shutdown", name], node=node) |
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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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"""
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AssertCommand(["rm", "-f", constants.WATCHER_STATEFILE]) |
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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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AssertCommand(["ganeti-watcher", "-d", "--ignore-pause"]) |
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def TestPauseWatcher(): |
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"""Tests and pauses the watcher.
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"""
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master = qa_config.GetMasterNode() |
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AssertCommand(["gnt-cluster", "watcher", "pause", "4h"]) |
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cmd = ["gnt-cluster", "watcher", "info"] |
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output = GetCommandOutput(master["primary"],
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utils.ShellQuoteArgs(cmd)) |
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AssertMatch(output, r"^.*\bis paused\b.*")
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def TestResumeWatcher(): |
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"""Tests and unpauses the watcher.
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"""
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master = qa_config.GetMasterNode() |
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AssertCommand(["gnt-cluster", "watcher", "continue"]) |
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cmd = ["gnt-cluster", "watcher", "info"] |
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output = GetCommandOutput(master["primary"],
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utils.ShellQuoteArgs(cmd)) |
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AssertMatch(output, r"^.*\bis not paused\b.*")
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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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inst_name = qa_utils.ResolveInstanceName(instance["name"])
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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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AssertCommand(["gnt-instance", "info", inst_name]) |
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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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inst_name = qa_utils.ResolveInstanceName(instance["name"])
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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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AssertCommand(["gnt-instance", "info", inst_name]) |