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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3900) Expose progress of a major compaction in UI and/or in shell
Date Sat, 27 Aug 2011 13:26:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092290#comment-13092290
] 

Ted Yu commented on HBASE-3900:
-------------------------------

In build 2152, the following test failure is related to this JIRA (https://builds.apache.org/view/G-L/view/HBase/job/HBase-TRUNK/lastCompletedBuild/testReport/org.apache.hadoop.hbase.master/TestMasterFailover/testMasterFailoverWithMockedRITOnDeadRS/):
{code}
java.io.IOException: Error in readFields
	at org.apache.hadoop.hbase.io.HbaseObjectWritable.readObject(HbaseObjectWritable.java:584)
	at org.apache.hadoop.hbase.ipc.Invocation.readFields(Invocation.java:64)
	at org.apache.hadoop.hbase.ipc.HBaseServer$Connection.processData(HBaseServer.java:1152)
	at org.apache.hadoop.hbase.ipc.HBaseServer$Connection.readAndProcess(HBaseServer.java:1112)
	at org.apache.hadoop.hbase.ipc.HBaseServer$Listener.doRead(HBaseServer.java:669)
	at org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:463)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: A record version mismatch occured. Expecting v1, found v0
	at org.apache.hadoop.io.VersionedWritable.readFields(VersionedWritable.java:46)
	at org.apache.hadoop.hbase.HServerLoad$RegionLoad.readFields(HServerLoad.java:316)
	at org.apache.hadoop.hbase.HServerLoad.readFields(HServerLoad.java:606)
	at org.apache.hadoop.hbase.io.HbaseObjectWritable.readObject(HbaseObjectWritable.java:581)
	... 8 more
{code}

> Expose progress of a major compaction in UI and/or in shell
> -----------------------------------------------------------
>
>                 Key: HBASE-3900
>                 URL: https://issues.apache.org/jira/browse/HBASE-3900
>             Project: HBase
>          Issue Type: Task
>            Reporter: stack
>            Assignee: Brad Anderson
>              Labels: patch
>             Fix For: 0.92.0
>
>         Attachments: HBASE-3900.patch
>
>
> A general recommendation is to turn off major compactions and run them externally only
currently the only way to follow progress of a major compaction is by study of regionserver
logs.  Add a feature that gives a percentage complete of major compaction up in the UI or
in shell.

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