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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-820) Need mainline to flush when 'Blocking updates' goes up.
Date Tue, 12 Aug 2008 16:47:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12621880#action_12621880
] 

stack commented on HBASE-820:
-----------------------------

So, looks like a patch that resembles the patch made in 790 named 790-v2 will fix this issue.
 Flushes are scheduled just before we put up a block.

> Need mainline to flush when 'Blocking updates' goes up.
> -------------------------------------------------------
>
>                 Key: HBASE-820
>                 URL: https://issues.apache.org/jira/browse/HBASE-820
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Priority: Blocker
>             Fix For: 0.2.1, 0.3.0
>
>
> Look at the below.  Blocking goes up and flush doesn't happen for nearly ten minutes
(Other flushes happen in the meantime no problem).  We need to run a flush immediately; schedule
it before all others.
> {code}
> 2008-08-12 01:45:54,175 INFO org.apache.hadoop.hbase.regionserver.HRegion: Blocking updates
for 'IPC Server handler 9 on 60020' on region TestTable,0024119972,1218505443888: Memcache
size 64.0m is >= than blocking 64.0m size
> ...
> 2008-08-12 01:54:36,695 DEBUG org.apache.hadoop.hbase.regionserver.HRegion: Started memcache
flush for region TestTable,0024119972,1218505443888. Current region memcache size 64.0m
> {code}

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