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From "Shawn Heisey (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-7319) Workaround the "Four Month Bug" causing GC pause problems
Date Fri, 27 Mar 2015 14:31:52 GMT

     [ https://issues.apache.org/jira/browse/SOLR-7319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shawn Heisey updated SOLR-7319:
-------------------------------
    Attachment: SOLR-7319.patch

Patch implementing the workaround, and documenting the fact that tools like jstat will no
longer function.

> Workaround the "Four Month Bug" causing GC pause problems
> ---------------------------------------------------------
>
>                 Key: SOLR-7319
>                 URL: https://issues.apache.org/jira/browse/SOLR-7319
>             Project: Solr
>          Issue Type: Bug
>          Components: scripts and tools
>    Affects Versions: 5.0
>            Reporter: Shawn Heisey
>            Assignee: Shawn Heisey
>             Fix For: 5.1
>
>         Attachments: SOLR-7319.patch
>
>
> A twitter engineer found a bug in the JVM that contributes to GC pause problems:
> http://www.evanjones.ca/jvm-mmap-pause.html
> We should implement the workaround and document the impact in CHANGES.txt.



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