[jira] [Assigned] (ACCUMULO-798) large ParNew can cause long-term stop-the-world java GC

["Eric Newton (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Newton reassigned ACCUMULO-798:
------------------------------------

    Assignee: Eric Newton  (was: Keith Turner)
    
> large ParNew can cause long-term stop-the-world java GC
> -------------------------------------------------------
>
>                 Key: ACCUMULO-798
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-798
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.4.1
>         Environment: running a tserver with a very large memory foot-print (16G)
>            Reporter: Eric Newton
>            Assignee: Eric Newton
>            Priority: Trivial
>             Fix For: 1.4.2
>
>
> While running a tserver with 16G of JVM memory, under continuous ingest, a ParNew collection took longer than 40 seconds.  This happened on two different servers (out of 40) after performing continuous ingest for more than 20 hours.
> Limiting the ParNew generation to 2G, and never saw this failure again.
> Recommend this setting in the examples, even though none of the examples approaches this memory size.

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