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https://issues.apache.org/jira/browse/CASSANDRA-208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716452#action_12716452
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Jiansheng Huang commented on CASSANDRA-208:
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Ok, then scale up the number of keys by 5 times, you will run into the problem.
:)
> 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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