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https://issues.apache.org/jira/browse/CASSANDRA-436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12755863#action_12755863
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Chris Goffinet commented on CASSANDRA-436:
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I will be testing this tonight on our cluster. I'll need roughly 15-20 hours
but should have some results tomorrow.
> OOM during major compaction on many (hundreds) of sstables
> ----------------------------------------------------------
>
> Key: CASSANDRA-436
> URL: https://issues.apache.org/jira/browse/CASSANDRA-436
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Fix For: 0.5
>
> Attachments: 0001-CASSANDRA-436-minor-fixes.txt,
> 0002-copy-FileStruct-to-SSTableScanner-and-remove-cruft.-M.txt,
> 0003-allow-ReducingIterator-to-reduce-from-one-type-to-a-di.txt,
> 0004-Replace-PriorityQueue-mess-with-a-CompactionIterator-t.txt
>
>
> compaction deserializes rows during compaction before they are needed, one
> per sstable. if we only deserialized on-demand the current algorithm would
> be fine on nearly arbitrarily large numbers of sstables. (this is only
> important b/c it is useful to disable compactions during bulk load.)
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