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https://issues.apache.org/jira/browse/SOLR-4031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yonik Seeley updated SOLR-4031:
-------------------------------

    Fix Version/s: 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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