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https://issues.apache.org/jira/browse/HBASE-1192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12705458#action_12705458
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Jonathan Gray commented on HBASE-1192:
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Hopefully we do see this much concurrency on the block cache. I read all the
solr code, it looks solid. I'd like to try to keep our initial implementation
as simple as we can, so will probably take hints from their implementation but
write our own.
I am going to be working on HBase stuff second half of this week. I will take
their code for a spin and do some benchmarking/tests. I think we should back
the block cache with a concurrenthashmap, will try to get a patch up by friday.
> 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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