Public bug reported:
KeepalivedIPv6Test.start_keepalived_process overrides
AGENT.check_child_processes_interval to 0 in an attempt to disable
process monitoring. The default value is 60 and the decision on whether
to spawn the process monitoring thread is made in
ProcessMonitor.__init__(), which is called by
KeepalivedIPv6Test.__init__() before start_keepalived_process is called,
so the process monitor is already started. Example logs:
2017-02-15 11:20:28.913 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" acquired by
"neutron.agent.linux.external_process._check_child_processes" :: waited 0.000s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:270
2017-02-15 11:20:28.914 16433 DEBUG neutron.agent.linux.utils [-] Unable to
access /tmp/tmppDICas/tmpJpJ77T/router1.pid get_value_from_file
neutron/agent/linux/utils.py:274
2017-02-15 11:20:28.914 16433 ERROR neutron.agent.linux.external_process [-]
keepalived for router with uuid router1 not found. The process should not have
died
2017-02-15 11:20:28.914 16433 WARNING neutron.agent.linux.external_process [-]
Respawning keepalived for uuid router1
2017-02-15 11:20:28.914 16433 DEBUG neutron.agent.linux.utils [-] Unable to
access /tmp/tmppDICas/tmpJpJ77T/router1.pid get_value_from_file
neutron/agent/linux/utils.py:274
2017-02-15 11:20:28.914 16433 DEBUG neutron.agent.linux.utils [-] Unable to
access /tmp/tmppDICas/tmpJpJ77T/router1.pid-vrrp get_value_from_file
neutron/agent/linux/utils.py:274
2017-02-15 11:20:28.915 16433 DEBUG neutron.agent.linux.utils [-] Running
command (rootwrap daemon): ['ip', 'netns', 'exec',
'keepalivedtest-31b1e0ad-37df-46c9-9aee-ed2cbfc117bf', 'keepalived', '-P',
'-f', '/tmp/tmppDICas/tmpJpJ77T/router1/keepalived.conf', '-p',
'/tmp/tmppDICas/tmpJpJ77T/router1.pid', '-r',
'/tmp/tmppDICas/tmpJpJ77T/router1.pid-vrrp'] execute_rootwrap_daemon
neutron/agent/linux/utils.py:113
2017-02-15 11:20:28.998 16433 DEBUG neutron.agent.linux.utils [-] Exit code: 0
execute neutron/agent/linux/utils.py:154
2017-02-15 11:20:28.998 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" released by
"neutron.agent.linux.external_process._check_child_processes" :: held 0.085s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:282
2017-02-15 11:20:28.999 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" acquired by
"neutron.agent.linux.external_process._check_child_processes" :: waited 0.000s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:270
2017-02-15 11:20:28.999 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" released by
"neutron.agent.linux.external_process._check_child_processes" :: held 0.000s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:282
2017-02-15 11:20:28.999 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" acquired by
"neutron.agent.linux.external_process._check_child_processes" :: waited 0.000s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:270
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1665061
Title:
keepalived sanity check tries to disable process monitoring, but
doesn't
Status in neutron:
New
Bug description:
KeepalivedIPv6Test.start_keepalived_process overrides
AGENT.check_child_processes_interval to 0 in an attempt to disable
process monitoring. The default value is 60 and the decision on
whether to spawn the process monitoring thread is made in
ProcessMonitor.__init__(), which is called by
KeepalivedIPv6Test.__init__() before start_keepalived_process is
called, so the process monitor is already started. Example logs:
2017-02-15 11:20:28.913 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" acquired by
"neutron.agent.linux.external_process._check_child_processes" :: waited 0.000s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:270
2017-02-15 11:20:28.914 16433 DEBUG neutron.agent.linux.utils [-] Unable to
access /tmp/tmppDICas/tmpJpJ77T/router1.pid get_value_from_file
neutron/agent/linux/utils.py:274
2017-02-15 11:20:28.914 16433 ERROR neutron.agent.linux.external_process [-]
keepalived for router with uuid router1 not found. The process should not have
died
2017-02-15 11:20:28.914 16433 WARNING neutron.agent.linux.external_process
[-] Respawning keepalived for uuid router1
2017-02-15 11:20:28.914 16433 DEBUG neutron.agent.linux.utils [-] Unable to
access /tmp/tmppDICas/tmpJpJ77T/router1.pid get_value_from_file
neutron/agent/linux/utils.py:274
2017-02-15 11:20:28.914 16433 DEBUG neutron.agent.linux.utils [-] Unable to
access /tmp/tmppDICas/tmpJpJ77T/router1.pid-vrrp get_value_from_file
neutron/agent/linux/utils.py:274
2017-02-15 11:20:28.915 16433 DEBUG neutron.agent.linux.utils [-] Running
command (rootwrap daemon): ['ip', 'netns', 'exec',
'keepalivedtest-31b1e0ad-37df-46c9-9aee-ed2cbfc117bf', 'keepalived', '-P',
'-f', '/tmp/tmppDICas/tmpJpJ77T/router1/keepalived.conf', '-p',
'/tmp/tmppDICas/tmpJpJ77T/router1.pid', '-r',
'/tmp/tmppDICas/tmpJpJ77T/router1.pid-vrrp'] execute_rootwrap_daemon
neutron/agent/linux/utils.py:113
2017-02-15 11:20:28.998 16433 DEBUG neutron.agent.linux.utils [-] Exit code:
0 execute neutron/agent/linux/utils.py:154
2017-02-15 11:20:28.998 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" released by
"neutron.agent.linux.external_process._check_child_processes" :: held 0.085s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:282
2017-02-15 11:20:28.999 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" acquired by
"neutron.agent.linux.external_process._check_child_processes" :: waited 0.000s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:270
2017-02-15 11:20:28.999 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" released by
"neutron.agent.linux.external_process._check_child_processes" :: held 0.000s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:282
2017-02-15 11:20:28.999 16433 DEBUG oslo_concurrency.lockutils [-] Lock
"_check_child_processes" acquired by
"neutron.agent.linux.external_process._check_child_processes" :: waited 0.000s
inner
/home/terry/src/neutron/.tox/dsvm-functional/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:270
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