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Posted to hdfs-issues@hadoop.apache.org by "Arpit Gupta (JIRA)" <ji...@apache.org> on 2013/08/28 20:04:54 UTC

[jira] [Updated] (HDFS-5140) Too many safemode monitor threads being created in the standby namenode causing it to fail with out of memory error

     [ https://issues.apache.org/jira/browse/HDFS-5140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arpit Gupta updated HDFS-5140:
------------------------------

    Summary: Too many safemode monitor threads being created in the standby namenode causing it to fail with out of memory error  (was: Too many safemode monitor threads being created in the standby namenode)
    
> Too many safemode monitor threads being created in the standby namenode causing it to fail with out of memory error
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5140
>                 URL: https://issues.apache.org/jira/browse/HDFS-5140
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ha
>    Affects Versions: 2.1.0-beta
>            Reporter: Arpit Gupta
>            Assignee: Jing Zhao
>            Priority: Blocker
>
> While running namenode load generator with 100 threads for 10 mins namenode was being failed over ever 2 mins.
> The standby namenode shut itself down as it ran out of memory and was not able to create another thread.
> When we searched for 'Safe mode extension entered' in the standby log it was present 55000+ times

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