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Posted to issues@hbase.apache.org by "Li Pi (JIRA)" <ji...@apache.org> on 2011/07/19 21:56:57 UTC

[jira] [Commented] (HBASE-4018) Attach memcached as secondary block cache to regionserver

    [ https://issues.apache.org/jira/browse/HBASE-4018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13067925#comment-13067925 ] 

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

I just went directly to direct byte buffers. See 4027. Closing this for now.

> 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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