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From David Smiley <david.w.smi...@gmail.com>
Subject Re: SolrCloud test fails RE "Can't find resource"
Date Tue, 01 May 2018 18:02:10 GMT
(sorry for my belated response)
Beasting a zillion times sounds like a decent option.  First I want to
compile a list to see if there are any apparent patterns though.

On Fri, Apr 27, 2018 at 11:16 AM Erick Erickson <erickerickson@gmail.com>
wrote:

> Do you think making a test that just started up a
> MiniSolrCloudCluster, created a collection then quit and then beasting
> it a zillion times might reproduce? I can help beast such a thing if
> it was available.
>
> I think there are a few root causes that are sporadically showing up
> here and there, any we can track down will help enormously in reducing
> noise.....
>
> Erick
>
> On Fri, Apr 27, 2018 at 6:34 AM, David Smiley <david.w.smiley@gmail.com>
> wrote:
> > Just thinking out loud here about something spooky...
> >
> > I've noticed some relatively rare and seemingly random SolrCloud tests
> that
> > fail to create a collection because an expected configSet resource isn't
> > found (isn't in Zookeeper where it ought to be).  The initial exception
> will
> > have "Can't find resource" then the name of the resource -- sometimes
> it's
> > solrconfig.xml or other times some language specific stop-word file or
> > something.  This happens when a collection is being created, but fails
> > because a core/replica won't load because the configSet is faulty
> because a
> > required file isn't there.  I do *not* believe this is some sort of
> > visibility race of the configSet wherein a sleep/wait before creating the
> > collection would help, because I've seen an entire test suite (test class
> > file) of many tests (test methods) all fail for the same reason. In that
> > case the MiniSolrCloudCluster was simply initialized in beforeClass and
> thus
> > ought to have "_default" ready to be used before the test methods, yet
> every
> > test method failed for the same reason.   This is very strange; the code
> > that uploads the _default configSet seems sound.  Yet there's some
> sporadic
> > bug so I guess somewhere there's either some race or there's an
> underlying
> > upload failure that is being ignored.
> >
> > I think I ought to compile a list of tests that have shown this error and
> > the dates(s) / build info in which it occurred.  Maybe there's a pattern
> /
> > something they have in common.
> > --
> > Lucene/Solr Search Committer, Consultant, Developer, Author, Speaker
> > LinkedIn: http://linkedin.com/in/davidwsmiley | Book:
> > http://www.solrenterprisesearchserver.com
>
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> --
Lucene/Solr Search Committer, Consultant, Developer, Author, Speaker
LinkedIn: http://linkedin.com/in/davidwsmiley | Book:
http://www.solrenterprisesearchserver.com

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