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https://issues.apache.org/jira/browse/HBASE-3993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13049996#comment-13049996
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Jason Rutherglen commented on HBASE-3993:
-----------------------------------------
CSLM implements deletes, which we don't need, and consumes many object pointers
which increases RAM consumption and can cause GC havoc.
> Alternatives to ConcurrentSkipListMap in MemStore
> -------------------------------------------------
>
> Key: HBASE-3993
> URL: https://issues.apache.org/jira/browse/HBASE-3993
> Project: HBase
> Issue Type: Improvement
> Reporter: Jason Rutherglen
> Priority: Minor
>
> This can be an umbrella issue for evaluating and testing alternatives to
> java.util.concurrent.ConcurrentSkipListMap in MemStore.
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