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From "Jeffrey Zhong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7006) [MTTR] Study distributed log splitting to see how we can make it faster
Date Fri, 04 Jan 2013 01:13:23 GMT

     [ 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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