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Posted to issues@hbase.apache.org by "Jeffrey Zhong (JIRA)" <ji...@apache.org> on 2013/01/04 02:13:23 UTC

[jira] [Updated] (HBASE-7006) [MTTR] Study distributed log splitting to see how we can make it faster

     [ https://issues.apache.org/jira/browse/HBASE-7006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeffrey Zhong updated HBASE-7006:
---------------------------------

    Attachment: ProposaltoimprovelogsplittingprocessregardingtoHBASE-7006.pdf


Hey,

I've came up a proposal to improve current log splitting process. Feedbacks are welcome! 

I temporarily assign the JIRA to me so that I can implement the proposal once it gets green light.

Thanks,
-Jeffrey


                
> [MTTR] Study distributed log splitting to see how we can make it faster
> -----------------------------------------------------------------------
>
>                 Key: HBASE-7006
>                 URL: https://issues.apache.org/jira/browse/HBASE-7006
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Priority: Critical
>             Fix For: 0.96.0
>
>         Attachments: ProposaltoimprovelogsplittingprocessregardingtoHBASE-7006.pdf
>
>
> Just saw interesting issue where a cluster went down  hard and 30 nodes had 1700 WALs to replay.  Replay took almost an hour.  It looks like it could run faster that much of the time is spent zk'ing and nn'ing.
> Putting in 0.96 so it gets a look at least.  Can always punt.

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