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https://issues.apache.org/jira/browse/CASSANDRA-3427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140221#comment-13140221
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Sylvain Lebresne commented on CASSANDRA-3427:
---------------------------------------------
Quite honestly, the best workaround is likely to apply the attached patch on
top of 1.0.1 (you can wait for someone to review to get a bit more confidence).
Because yes, a bigger chunk_length would diminish the problem, but if you do
enough range_queries you would likely still OOM and there is point after which
a chunk_length too big is just counter-productive.
> CompressionMetadata is not shared across threads, we create a new one for
> each read
> -----------------------------------------------------------------------------------
>
> Key: CASSANDRA-3427
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3427
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.0.1
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Labels: compression
> Fix For: 1.0.2
>
> Attachments: 3427.patch
>
>
> The CompressionMetada holds the compressed block offsets in memory. Without
> being absolutely huge, this is still of non-negligible size as soon as you
> have a bit of data in the DB. Reallocating this for each read is a very bad
> idea.
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