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https://issues.apache.org/jira/browse/HBASE-9736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeffrey Zhong updated HBASE-9736:
---------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
Thanks [[email protected]] for the review and comments. I've incorporated
your comments into the committed patch and integrated it into 0.96 and trunk
branch.
> Alow more than one log splitter per RS
> --------------------------------------
>
> Key: HBASE-9736
> URL: https://issues.apache.org/jira/browse/HBASE-9736
> Project: HBase
> Issue Type: Improvement
> Components: MTTR
> Reporter: stack
> Assignee: Jeffrey Zhong
> Priority: Critical
> Attachments: hbase-9736.patch
>
>
> IIRC, this is an idea that came from the lads at Xiaomi.
> I have a small cluster of 6 RSs and one went down. It had a few WALs. I see
> this in logs:
> 2013-10-09 05:47:27,890 DEBUG org.apache.hadoop.hbase.master.SplitLogManager:
> total tasks = 25 unassigned = 21
> WAL splitting is held up for want of slots out on the cluster to split WALs.
> We need to be careful we don't overwhelm the foreground regionservers but
> more splitters should help get all back online faster.
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