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https://issues.apache.org/jira/browse/CASSANDRA-208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12714521#action_12714521
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Jun Rao commented on CASSANDRA-208:
-----------------------------------
In your data set, do you have a large row? Today, during compaction, a full row
may have to be buffered in memory. See
https://issues.apache.org/jira/browse/CASSANDRA-16 for more on this.
> jvm crashes intermittently during compaction
> --------------------------------------------
>
> Key: CASSANDRA-208
> URL: https://issues.apache.org/jira/browse/CASSANDRA-208
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: trunk
> 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
>
> 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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