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https://issues.apache.org/jira/browse/HBASE-4010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13052345#comment-13052345
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Ted Yu edited comment on HBASE-4010 at 6/21/11 5:44 PM:
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First attempt.
TestAdmin passes.
batch put to .META. may require a new config parameter
(hbase.createtable.metabatch.size). I am thinking of using default batch of 5.
Will create MetaEditor.addRegionsToMeta() once we agree on the strategy for
batching.
was (Author: [email protected]):
First attempt.
TestAdmin passes.
batch put to .META. may require a new config parameter
(hbase.createtable.metabatch,size). I am thinking of using default batch of 5.
Will create MetaEditor.addRegionsToMeta() once we agree on the strategy for
batching.
> HMaster.createTable could be heavily optimized
> ----------------------------------------------
>
> Key: HBASE-4010
> URL: https://issues.apache.org/jira/browse/HBASE-4010
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.90.3
> Reporter: Jean-Daniel Cryans
> Assignee: Ted Yu
> Fix For: 0.92.0
>
> Attachments: 4010-v2.txt, 4010.txt
>
>
> Looking at the createTable method in HMaster (the one that's private), we
> seem to be very inefficient:
> - We set the enabled flag for the table for every region (should be done
> only once).
> - Every time we create a new region we create a new HLog and then close it
> (reuse one instead or see if it's really necessary).
> - We do one RPC to .META. per region (we should batch put).
> This should provide drastic speedups even for those creating tables with just
> 50 regions.
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