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From "Li Pi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4018) Attach memcached as secondary block cache to regionserver
Date Thu, 23 Jun 2011 17:41:48 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13053998#comment-13053998
] 

Li Pi commented on HBASE-4018:
------------------------------

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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