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https://issues.apache.org/jira/browse/CASSANDRA-19927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17882520#comment-17882520
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Francisco Guerrero commented on CASSANDRA-19927:
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+1 thanks for the patch
> [Analytics] Deprecate old compression cache and move to using cache of
> CompressionMetadata
> ------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-19927
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19927
> Project: Cassandra
> Issue Type: Improvement
> Components: Analytics Library
> Reporter: James Berragan
> Assignee: James Berragan
> Priority: Normal
> Time Spent: 50m
> Remaining Estimate: 0h
>
> The compression cache currently caches a single byte array for the
> CompressionInfo.db file, this is a problem for large files as it involves
> allocating and garbage collecting large memory segments, but also means that
> every consumer of the bytes will instantiate a CompressionMetadata object and
> allocate an individual BigLongArray to store the chunk offsets. This is
> unnecessary as the CompressionMetadata is immutable and can be re-used.
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