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From Sébastien Giroux (JIRA) <j...@apache.org>
Subject [jira] Issue Comment Edited: (CASSANDRA-2273) Possible Memory leak
Date Fri, 04 Mar 2011 18:17:37 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13002761#comment-13002761
] 

Sébastien Giroux edited comment on CASSANDRA-2273 at 3/4/11 6:16 PM:
---------------------------------------------------------------------

I attached the screenshot.

      was (Author: wajam):
    Heap usage spike
  
> Possible Memory leak
> --------------------
>
>                 Key: CASSANDRA-2273
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2273
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Sébastien Giroux
>            Priority: Critical
>             Fix For: 0.7.4
>
>         Attachments: heap_peak_OOM.PNG
>
>
> I have a few problematic nodes in my cluster that will crash OutOfMemory very often.
This is Cassandra 0.7.3 downloaded from Hudson.
> Heap size is 6GB, server memory is 8GB.
> Memtable are flushed at 64MB, I have 5 CFs.
> FlushLargestMemtablesAt is set at 0.8 but doesn't help with this issue.
> I will attach a screenshot showing my issue. There is no compaction going on when the
heap usage start increasing like crazy.
> It could be a configuration issue but it kinda looks like a bug to me.

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