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https://issues.apache.org/jira/browse/SOLR-13054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16717651#comment-16717651
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ASF subversion and git services commented on SOLR-13054:
--------------------------------------------------------
Commit c5426ecd1807ab75f86b5932b64944fc7df85718 in lucene-solr's branch
refs/heads/branch_7x from Chris Hostetter
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=c5426ec ]
SOLR-13054: rewrite TriggerSetPropertiesIntegrationTest
test no longer depends on changing static non-final non-volatile variables used
by multiple threads
test also no longer depends on arbitrary sleep calls, instead threads
await/poll on concurrent signaling objects/queues
(cherry picked from commit 3147c131e0ce997259f7bcf31e655d43dd99ef59)
> TriggerSetPropertiesIntegrationTest cleanup
> -------------------------------------------
>
> Key: SOLR-13054
> URL: https://issues.apache.org/jira/browse/SOLR-13054
> Project: Solr
> Issue Type: Test
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Hoss Man
> Assignee: Hoss Man
> Priority: Major
> Attachments: SOLR-13054.patch
>
>
> While investigating some odd jenkins failures from
> TriggerSetPropertiesIntegrationTest, I'm left with the conclusion that as
> implemented, the test was susceptible to order of operation bugs due to how
> the multiple threads would access a static _non-final *non-volatile*_
> CountdownLatch for keeping track of when/if anough iterations had past --
> based on the (limited) logging that was being produced, it seemed like
> thescheduled threads were picing up the "first" {{new CountdownLatch(1)}}
> assigned to that variable, even though the test expected it to use the second
> {{new CountdownLatch(2)}}
> It's possible that just marking this variable {{volatile}} would have
> prevented these failures -- but as designed the test was also very dependent
> on arbitrary {{sleep()}} delays, so instead i've redisgned it to use
> differnet signaling mechanisms using {{await()}} calls on concurrent signal
> structures.
> Opening this issue to track these test improvements and any subsequent tweaks
> needed
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