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https://issues.apache.org/jira/browse/SOLR-5345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13793776#comment-13793776
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Uwe Schindler commented on SOLR-5345:
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Yeah, thanks. On Jenkins it fails less often than on my machine, because the
number of open files for the Jenkins process was raised to something like
16,000 or more file handles. Which is horrible alltogether. We should really
tone down *all* those tests to use less than 1024 file handles, so anybody
without tuned system settings can run tests!
> OpenCloseCoreStressTest opens too many files (causing it to fail often)
> -----------------------------------------------------------------------
>
> Key: SOLR-5345
> URL: https://issues.apache.org/jira/browse/SOLR-5345
> Project: Solr
> Issue Type: Bug
> Reporter: Robert Muir
> Fix For: 4.5.1
>
>
> Typically the symptom with jenkins is strange socket failures (because
> sockets are files too).
> On my machine though i got the nice too many open files from lucene because
> it just happened to fail that way.
> In addition to holding thousands of open files, this test creates 90
> *megabytes* of logging output!
> Can we tone down the test? I havent looked at all: but it doesn't seem
> necessary to have huge numbers of cores/indexes to test the functionality, we
> should be able to do this with relatively small numbers.
> Additionally i dont think its good to use random merge/IW buffering
> parameters here, we should set ones that won't make tons of files, force the
> use of compound file format, etc.
> The massive amounts of logging should be addressed too.
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