Backport fix for "parent, LightProcess exiting" logspam to Beta Cluster
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	greg
	Mar 9 2016, 6:24 PM

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See T124956, specifically this comment:

In T124956#2058147, @bd808 wrote:

In T124956#2058122, @greg wrote:

Ori made some patches that fixed this for Roan during a SWAT, but I'm still seeing this in our beta-scap-eqiad jenkins job.

See eg: https://integration.wikimedia.org/ci/job/beta-scap-eqiad/90857/console

That hiera data relies on the "role" magic in the production Puppet stack. In labs we would need to copy the same settings into a host specific hiera file (or the Hiera: namespace on wikitech)

Patch in question: https://gerrit.wikimedia.org/r/#/c/271714/

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Mentioned In: T124956: Rise in "parent, LightProcess exiting" console spam
Mentioned Here: T124956: Rise in "parent, LightProcess exiting" console spam

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greg created this task.Mar 9 2016, 6:24 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMar 9 2016, 6:24 PM

greg mentioned this in T124956: Rise in "parent, LightProcess exiting" console spam.Mar 9 2016, 6:25 PM

Trying via wikitech hiera magic at https://wikitech.wikimedia.org/w/index.php?title=Hiera:Deployment-prep/host/deployment-tin&oldid=356599

In T129385#2104047, @bd808 wrote:

Trying via wikitech hiera magic at https://wikitech.wikimedia.org/w/index.php?title=Hiera:Deployment-prep/host/deployment-tin&oldid=356599

Info: Applying configuration version '1457548824'
Notice: /Stage[main]/Hhvm/File[/etc/hhvm/php.ini]/content:
--- /etc/hhvm/php.ini   2016-03-04 20:54:08.118316447 +0000
+++ /tmp/puppet-file20160309-23308-12x373b      2016-03-09 18:48:06.516517286 +0000
@@ -22,7 +22,7 @@
 hhvm.resource_limit.core_file_size = 8589934592
 hhvm.server.apc.expire_on_sets = true
 hhvm.server.apc.ttl_limit = 172800
-hhvm.server.light_process_count = 5
+hhvm.server.light_process_count = 0
 hhvm.server.light_process_file_prefix = /var/tmp/hhvm
 hhvm.timeouts_use_wall_time = true
 include_path = .:/usr/share/php

Before: https://integration.wikimedia.org/ci/view/Beta/job/beta-scap-eqiad/93023/console

After: https://integration.wikimedia.org/ci/view/Beta/job/beta-scap-eqiad/93024/console

Restricted Application added a project: User-bd808. · View Herald TranscriptMar 9 2016, 6:49 PM

yay! thanks!

bd808 moved this task from To Do to Done on the User-bd808 board.Mar 10 2016, 4:26 PM

bd808 moved this task from Done to Archive on the User-bd808 board.Mar 14 2016, 5:55 PM

Backport fix for "parent, LightProcess exiting" logspam to Beta ClusterClosed, ResolvedPublicActions

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Backport fix for "parent, LightProcess exiting" logspam to Beta Cluster
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