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RunCommandMonitoringProtocol throws an exception if runcommand.arguments is not specified
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Description

Setting up a runcommand monitor fails if runcommand.arguments is not specified in RunCommand's configuration:

Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 588, in _runCallbacks
Oct 12 13:13:41 lvs1003 pybal[28500]: current.result = callback(current.result, *args, **kw)
Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/pybal/coordinator.py", line 163, in _ready
Oct 12 13:13:41 lvs1003 pybal[28500]: self.createMonitoringInstances(coordinator)
Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/pybal/coordinator.py", line 212, in createMonitoringInstances
Oct 12 13:13:41 lvs1003 pybal[28500]: monitor = monitorclass(coordinator, self, lvsservice.configuration)
Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/pybal/monitors/runcommand.py", line 120, in __init__
Oct 12 13:13:41 lvs1003 pybal[28500]: self.arguments = self._getConfigStringList('arguments', locals=locals)
Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/pybal/monitor.py", line 129, in _getConfigStringList
Oct 12 13:13:41 lvs1003 pybal[28500]: val = eval(self.configuration[key], locals, globals)
Oct 12 13:13:41 lvs1003 pybal[28500]: exceptions.KeyError: 'runcommand.arguments'
Oct 12 13:13:41 lvs1003 pybal[28500]: Unhandled error in Deferred:
Oct 12 13:13:41 lvs1003 pybal[28500]: Traceback (most recent call last):
Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 588, in _runCallbacks
Oct 12 13:13:41 lvs1003 pybal[28500]: current.result = callback(current.result, *args, **kw)
Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 859, in _cbDeferred
Oct 12 13:13:41 lvs1003 pybal[28500]: self.callback(self.resultList)
Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 393, in callback
Oct 12 13:13:41 lvs1003 pybal[28500]: self._startRunCallbacks(result)
Oct 12 13:13:41 lvs1003 pybal[28500]: File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 501, in _startRunCallbacks
Oct 12 13:13:41 lvs1003 pybal[28500]: self._runCallbacks()

If runcommand.arguments is not specified, PyBal should default to [""] instead.

Details

Related Changes in Gerrit:
SubjectRepoBranchLines +/-
1.14.2: do not crash on empty runcommand.argumentsoperations/debs/pybalmaster+7 -0
1.14.2: do not crash on empty runcommand.argumentsoperations/debs/pybal1.14+7 -0
runcommand: do not crash on empty runcommand.argumentsoperations/debs/pybalmaster+39 -1
runcommand: do not crash on empty runcommand.argumentsoperations/debs/pybal1.14+39 -1
hieradata: force present and empty runcommand.argumentsoperations/puppetproduction+4 -0
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Related Objects

Event Timeline

• ema created this task.Oct 13 2017, 9:57 AM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptOct 13 2017, 9:57 AM
• ema triaged this task as Medium priority.Oct 13 2017, 9:58 AM
gerritbot subscribed.Oct 13 2017, 9:58 AM

Change 383997 had a related patch set uploaded (by Filippo Giunchedi; owner: Filippo Giunchedi):
[operations/puppet@production] hieradata: force present and empty runcommand.arguments

https://gerrit.wikimedia.org/r/383997

gerritbot added a project: Patch-For-Review.Oct 13 2017, 9:58 AM

Change 384000 had a related patch set uploaded (by Ema; owner: Ema):
[operations/debs/pybal@master] runcommand: do not crash on empty runcommand.arguments

https://gerrit.wikimedia.org/r/384000

gerritbot added a comment.Oct 13 2017, 10:14 AM

Change 383997 merged by Filippo Giunchedi:
[operations/puppet@production] hieradata: force present and empty runcommand.arguments

https://gerrit.wikimedia.org/r/383997

Stashbot subscribed.Oct 13 2017, 10:22 AM

Mentioned in SAL (#wikimedia-operations) [2017-10-13T10:22:48Z] <godog> roll-restart pybal to apply https://gerrit.wikimedia.org/r/#/c/383997/ - T178149

• ema moved this task from Backlog to LoadBalancer on the Traffic board.Oct 13 2017, 2:28 PM
gerritbot added a comment.Oct 16 2017, 9:32 AM

Change 384000 merged by Ema:
[operations/debs/pybal@master] runcommand: do not crash on empty runcommand.arguments

https://gerrit.wikimedia.org/r/384000

gerritbot added a comment.Oct 16 2017, 9:33 AM

Change 384480 had a related patch set uploaded (by Ema; owner: Ema):
[operations/debs/pybal@1.14] runcommand: do not crash on empty runcommand.arguments

https://gerrit.wikimedia.org/r/384480

gerritbot added a comment.Oct 16 2017, 9:34 AM

Change 384480 merged by Ema:
[operations/debs/pybal@1.14] runcommand: do not crash on empty runcommand.arguments

https://gerrit.wikimedia.org/r/384480

gerritbot added a comment.Oct 16 2017, 9:36 AM

Change 384483 had a related patch set uploaded (by Ema; owner: Ema):
[operations/debs/pybal@master] 1.14.2: do not crash on empty runcommand.arguments

https://gerrit.wikimedia.org/r/384483

gerritbot added a comment.Oct 16 2017, 9:38 AM

Change 384483 merged by Ema:
[operations/debs/pybal@master] 1.14.2: do not crash on empty runcommand.arguments

https://gerrit.wikimedia.org/r/384483

gerritbot added a comment.Oct 16 2017, 9:38 AM

Change 384484 had a related patch set uploaded (by Ema; owner: Ema):
[operations/debs/pybal@1.14] 1.14.2: do not crash on empty runcommand.arguments

https://gerrit.wikimedia.org/r/384484

gerritbot added a comment.Oct 16 2017, 9:38 AM

Change 384484 merged by Ema:
[operations/debs/pybal@1.14] 1.14.2: do not crash on empty runcommand.arguments

https://gerrit.wikimedia.org/r/384484

Stashbot added a comment.Oct 16 2017, 9:44 AM

Mentioned in SAL (#wikimedia-operations) [2017-10-16T09:44:49Z] <ema> upgrading ulsfo LVSs to pybal 1.14.2 (T178149, T177815)

Stashbot mentioned this in T177815: Alerts on LVS services with one single realserver.Oct 16 2017, 9:44 AM
Stashbot added a comment.Oct 16 2017, 9:54 AM

Mentioned in SAL (#wikimedia-operations) [2017-10-16T09:54:33Z] <ema> upgrading esams LVSs to pybal 1.14.2 (T178149, T177815)

Stashbot added a comment.Oct 16 2017, 10:03 AM

Mentioned in SAL (#wikimedia-operations) [2017-10-16T10:03:13Z] <ema> upgrading codfw LVSs to pybal 1.14.2 (T178149, T177815)

Stashbot added a comment.Oct 16 2017, 12:38 PM

Mentioned in SAL (#wikimedia-operations) [2017-10-16T12:38:38Z] <ema> upgrading eqiad LVSs to pybal 1.14.2 (T178149, T177815)

• ema closed this task as Resolved.Oct 16 2017, 12:46 PM
• ema claimed this task.

PyBal upgraded to 1.14.2 on all LVS hosts.

fgiunchedi mentioned this in T178078: RESTBase logs disappeared from logstash.Oct 19 2017, 8:14 AM
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