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https://issues.apache.org/jira/browse/HBASE-4018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13053998#comment-13053998
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Li Pi commented on HBASE-4018:
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Java has a JNI domain sockets library - though at that point you might as well
go JNI -> Memcached directly. But my C-fu is weaker than expected, and this is
taking me longer than it should.
> Attach memcached as secondary block cache to regionserver
> ---------------------------------------------------------
>
> Key: HBASE-4018
> URL: https://issues.apache.org/jira/browse/HBASE-4018
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Li Pi
> Assignee: Li Pi
>
> Currently, block caches are limited by heap size, which is limited by garbage
> collection times in Java.
> We can get around this by using memcached w/JNI as a secondary block cache.
> This should be faster than the linux file system's caching, and allow us to
> very quickly gain access to a high quality slab allocated cache.
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