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

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

    Attachment: LogSplitting Comparison.pdf


The new implementation increases performance about 2 times and become much 
better when more regions to be recovered.

The new implementation allows writes in recovery so we won't have data loss for 
"time series data" usage pattern. The down time for writes normally is about 
one or two seconds.

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
>            Assignee: Jeffrey Zhong
>             Fix For: 0.96.0
>
>         Attachments: LogSplitting Comparison.pdf, 
> 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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Reply via email to