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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2019/02/14 13:30:00 UTC

[jira] [Resolved] (IGNITE-3203) Hadoop: permgen leak due to new statistics thread in Hadoop.

     [ https://issues.apache.org/jira/browse/IGNITE-3203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov resolved IGNITE-3203.
-------------------------------------
    Resolution: Won't Fix

> Hadoop: permgen leak due to new statistics thread in Hadoop.
> ------------------------------------------------------------
>
>                 Key: IGNITE-3203
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3203
>             Project: Ignite
>          Issue Type: Task
>          Components: hadoop
>    Affects Versions: 1.5.0.final, 1.6
>            Reporter: Vladimir Ozerov
>            Priority: Major
>
> *Problem*
> HADOOP-12829 ticket was implemented recently. It introduces special worker thread which monitors file system statistics. When several {{HadoopClassLoader}}s are created, one thread start for each of them. As this thread is never stopped, classloaders are never unloaded -> leak.
> *Solution*
> We need to investigate on how to hack into this process and prevent start of these thread. May be we will have to implement our own threads serving the same purpose.



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