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https://issues.apache.org/jira/browse/SOLR-3180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13219246#comment-13219246
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Yonik Seeley commented on SOLR-3180:
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We've come a long way and the monkey has uncovered a number of bugs that we've
fixed and is helping to make a really solid solution.
I just uncovered another one having to do with races on shutdown.
When we kill the Jetty instance, it can cause an interrupted exception that
closes the underlying NIO files under lucene.
If a commit is happening concurrently then what can happen is that we can end
up with more than one unfinished transaction log.
We call preCommit, which move the current tlog to prevTlog.
The commit fails, but concurrently other updates are coming in and they cause a
new tlog to be created.
Even other updates coming in after this point can also succeed since they are
simply buffered in memory by the IW.
> ChaosMonkey test failures
> -------------------------
>
> Key: SOLR-3180
> URL: https://issues.apache.org/jira/browse/SOLR-3180
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Reporter: Yonik Seeley
>
> Handle intermittent failures in the ChaosMonkey tests.
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