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https://issues.apache.org/jira/browse/SOLR-3066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13203190#comment-13203190
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Mark Miller commented on SOLR-3066:
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So a lot of this seemed to be fixed by adding a higher timeout when we wait for
the searcher open/close counts to balance out. I think this is partially
because jenkins will run with test multipliers and so some tests start and stop
quite a few number of jetties, so it on a slow system, it can take a little
while for all cores to be released some times.
A couple of the tests that are currently ignored failed with bigger count
mismatches though. I didn't want to turn those back on without more assurance
they might pass.
So I installed freebsd in virtualbox and started playing there within the
confines of the black hole behavior. I tried to run those two tests and indeed
they failed - a couple stack trace dumps and I realized that some recovery
attempt calls where hanging - I had set timeouts for the calls to
recover/replicate, but not for the calls to sync. I added the timeouts and
those tests started passing.
So things are looking okay, except that i just saw that very rarely on jenkins,
the zkrecovery test is failing with an imbalance off by one. I'll probably make
a different issue for that less frequent case.
> SolrIndexSearcher open/close imbalance in some of the new SolrCloud tests.
> --------------------------------------------------------------------------
>
> Key: SOLR-3066
> URL: https://issues.apache.org/jira/browse/SOLR-3066
> Project: Solr
> Issue Type: Test
> Reporter: Mark Miller
>
> I have not been able to duplicate this test issue on my systems yet, but on
> jenkins, some tests that start and stop jetty instances during the test are
> having trouble cleaning up and can bleed into other tests. I'm working on
> isolating the reason for this - I seem to have been ip banned from jenkins at
> the moment, but when I can ssh in there, I will be able to speed up the
> try/feedback loop some. I've spent a lot of time trying to duplicate across 3
> other systems, but I don't see the same issue anywhere but our jenkins server
> thus far.
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