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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2066) Perf: parallelize puts
Date Tue, 26 Jan 2010 17:04:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12805098#action_12805098

stack commented on HBASE-2066:

Patch looks good.  Make sure all licenses are 2010 on commit and add some class comment to
new classes saying what they do on commit.  You don't up the RPC version?  Otherwise it looks
great RR.

> Perf: parallelize puts
> ----------------------
>                 Key: HBASE-2066
>                 URL: https://issues.apache.org/jira/browse/HBASE-2066
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.2
>            Reporter: ryan rawson
>            Assignee: ryan rawson
>             Fix For: 0.21.0
>         Attachments: HBASE-2066-branch.patch, HBASE-2066-v2.patch
> Right now with large region count tables, the write buffer is not efficient.  This is
because we issue potentially N RPCs, where N is the # of regions in the table.  When N gets
large (lets say 1200+) things become sloowwwww.
> Instead if we batch things up using a different RPC and use thread pools, we could see
higher performance!
> This requires a RPC change...

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