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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-208) OOM intermittently during compaction
Date Fri, 05 Jun 2009 01:28:07 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716477#action_12716477
] 

Jonathan Ellis commented on CASSANDRA-208:
------------------------------------------

Ah, thanks.  I got mixed up. :)

> OOM intermittently during compaction
> ------------------------------------
>
>                 Key: CASSANDRA-208
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-208
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: arch: x86_64
> os: Linux version 2.6.18-92.1.22.el5 
> java: nio2-ea-bin-b99-linux-x64-05_feb_2009
>            Reporter: Jiansheng Huang
>            Assignee: Jonathan Ellis
>            Priority: Critical
>             Fix For: 0.4
>
>         Attachments: 0001-CASSANDRA-208-cleanup.txt, 0002-r-m-touch.txt, 0003-split-sstable-into-data-index-and-bloom-filter-files.txt
>
>
> jvm crashes intermittently during compaction. Our test data set is not that big, less
than 10 GB.
> When jvm is about to crash, we see that it consumes a lot of memory (exceeding the max
heap size).
> The excessive memory usage during compaction is caused by the maintenance of blockIndexes_
in SSTable. this blockIndexes_ was only introduced to the apache version.

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