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https://issues.apache.org/jira/browse/SOLR-4031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13492247#comment-13492247
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Yonik Seeley commented on SOLR-4031:
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Thanks for tracking that down Per!
Sounds like we should definitely upgrade to the latest Jetty 8. I've marked
this for 4.1
> Rare mixup of request content
> ------------------------------
>
> Key: SOLR-4031
> URL: https://issues.apache.org/jira/browse/SOLR-4031
> Project: Solr
> Issue Type: Bug
> Components: multicore, search, SolrCloud
> Affects Versions: 4.0
> Reporter: Per Steffensen
> Labels: bug, data-integrity, mixup, request, security
> Fix For: 4.1
>
>
> We are using Solr 4.0 and run intensive performance/data-integrity/endurance
> tests on it. In very rare occasions the content of two concurrent requests to
> Solr get mixed up. We have spent a lot of time narrowing down this issue and
> found that it is a bug in Jetty 8.1.2. Therefore of course we have filed it
> as a bug with Jetty.
> Official bugzilla: https://bugs.eclipse.org/bugs/show_bug.cgi?id=392936
> Mailing list thread:
> http://dev.eclipse.org/mhonarc/lists/jetty-dev/threads.html#01530
> The reports to Jetty is very detailed so you can go and read about it there.
> We have found that the problem seems to be solved in Jetty 8.1.7. Therefore
> we are now running Solr 4.0 (plus our additional changes) on top of Jetty
> 8.1.7 instead of 8.1.2. You probably want to do the same upgrade on the
> Apache side sometime soon.
> Alt least now you know what to tell people if the start complaining about
> mixed up requests in Solr 4.0 - upgrade the Jetty underneath to 8.1.7 (or run
> tomcat or something)
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