You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-dev@hadoop.apache.org by "Bryan Duxbury (JIRA)" <ji...@apache.org> on 2008/01/14 16:37:34 UTC

[jira] Commented: (HADOOP-2597) [hbase] Performance - add a block cache

    [ https://issues.apache.org/jira/browse/HADOOP-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12558634#action_12558634 ] 

Bryan Duxbury commented on HADOOP-2597:
---------------------------------------

I like this idea. We could implement it with a wrapper around MapFile, something like CachingMapFile.

> [hbase] Performance - add a block cache
> ---------------------------------------
>
>                 Key: HADOOP-2597
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2597
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>            Reporter: Tom White
>
> A block cache would cache fixed size blocks (default 64k) of data read from HDFS by the MapFile. It would help read performance for data close to recently read data (see Bigtable paper, section 6). It would be configurable on a per-column family basis.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.