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https://issues.apache.org/jira/browse/HBASE-1192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12705343#action_12705343
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stack commented on HBASE-1192:
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@Shalin
Thank you for the pointer to the rich lode on lock-free cache.
@Jon
What you think? Thread scheduler is not fair in java. Synchronizations could
make for thread pile-ups with some left out in the cold never getting a look-in
(the 'bottlenecks', I presume, referenced in the issue). Could push out our
99.5th percentile.
> LRU-style map for the block cache
> ---------------------------------
>
> Key: HBASE-1192
> URL: https://issues.apache.org/jira/browse/HBASE-1192
> Project: Hadoop HBase
> Issue Type: New Feature
> Components: regionserver
> Reporter: Jonathan Gray
> Assignee: ryan rawson
> Priority: Blocker
> Fix For: 0.20.0
>
> Attachments: hbase-1192-v1.patch, hbase-1192-v2.patch,
> hbase-1192-v3.patch
>
>
> We need to decide what structure to use to back the block cache. The primary
> decision is whether to continue using SoftReferences or to build our own
> structure.
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