openstack/devstack
Code Issues Proposed changes

worlddump: request Guru Mediation reports for neutron agents

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Those reports may be helpful when debugging neutron gate issues.

pgrep is backwards compatible with old Solaris tools, which means it
does not match with commands that are longer than 15 characters. To
avoid that for neutron agent names which are longer than that, we need
to pass -f argument to match against the full cmdline.

Also killall instead of kill + pgrep in a subshell.

Change-Id: I9b3801e927c0e80443ed76e38cd8e3618e888e49
This commit is contained in:
Ihar Hrachyshka 2016-02-11 13:54:48 +01:00
parent 406b45b81a
commit ef219bfcaf
1 changed files with 21 additions and 10 deletions
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31
tools/worlddump.py
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@ -27,6 +27,16 @@ import subprocess
import sys import sys
GMR_PROCESSES = (
'nova-compute',
'neutron-dhcp-agent',
'neutron-l3-agent',
'neutron-linuxbridge-agent',
'neutron-metadata-agent',
'neutron-openvswitch-agent',
)
def get_options(): def get_options():
parser = argparse.ArgumentParser( parser = argparse.ArgumentParser(
description='Dump world state for debugging') description='Dump world state for debugging')
@ -191,17 +201,18 @@ def compute_consoles():
_dump_cmd("sudo cat %s" % fullpath) _dump_cmd("sudo cat %s" % fullpath)
def guru_meditation_report(): def guru_meditation_reports():
_header("nova-compute Guru Meditation Report") for service in GMR_PROCESSES:
_header("%s Guru Meditation Report" % service)
try: try:
subprocess.check_call(["pgrep","nova-compute"]) subprocess.check_call(['pgrep', '-f', service])
except subprocess.CalledProcessError: except subprocess.CalledProcessError:
print("Skipping as nova-compute does not appear to be running") print("Skipping as %s does not appear to be running" % service)
return continue
_dump_cmd("kill -s USR2 `pgrep nova-compute`") _dump_cmd("killall -e -USR2 %s" % service)
print("guru meditation report in nova-compute log") print("guru meditation report in %s log" % service)
def main(): def main():
@ -218,7 +229,7 @@ def main():
iptables_dump() iptables_dump()
ebtables_dump() ebtables_dump()
compute_consoles() compute_consoles()
guru_meditation_report() guru_meditation_reports()
if __name__ == '__main__': if __name__ == '__main__':