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From "Heng Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15406) Split / merge switch left disabled after early termination of hbck
Date Fri, 18 Mar 2016 02:54:33 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Heng Chen updated HBASE-15406:
------------------------------
    Attachment: test.patch

with the test.patch,  do as follows:

1.  bin/hbase hbck -abort -disableSplitAndMerge  // this will abort hbck with switches left.

2.  then open the shell,  try splitormerge_switch command, you will see.
{code}
hbase(main):001:0> splitormerge_switch 'SPLIT', true

ERROR: java.io.IOException: Can't set splitOrMerge switch due to old lock!
	at org.apache.hadoop.hbase.zookeeper.SplitOrMergeTracker.setSplitOrMergeEnabled(SplitOrMergeTracker.java:98)
	at org.apache.hadoop.hbase.master.MasterRpcServices.setSplitOrMergeEnabled(MasterRpcServices.java:1529)
	at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java:60636)
	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2229)
	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:109)
	at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137)
	at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112)
	at java.lang.Thread.run(Thread.java:745)
{code}

3. bin/hbase hbck  -disableSplitAndMerge  

4. try 'splitormerge_enabled'  command,  you will see the switch set back.

> Split / merge switch left disabled after early termination of hbck
> ------------------------------------------------------------------
>
>                 Key: HBASE-15406
>                 URL: https://issues.apache.org/jira/browse/HBASE-15406
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Priority: Critical
>             Fix For: 2.0.0, 1.3.0, 1.4.0
>
>         Attachments: HBASE-15406.patch, HBASE-15406.v1.patch, HBASE-15406_v1.patch, test.patch,
wip.patch
>
>
> This was what I did on cluster with 1.4.0-SNAPSHOT built Thursday:
> Run 'hbase hbck -disableSplitAndMerge' on gateway node of the cluster
> Terminate hbck early
> Enter hbase shell where I observed:
> {code}
> hbase(main):001:0> splitormerge_enabled 'SPLIT'
> false
> 0 row(s) in 0.3280 seconds
> hbase(main):002:0> splitormerge_enabled 'MERGE'
> false
> 0 row(s) in 0.0070 seconds
> {code}
> Expectation is that the split / merge switches should be restored to default value after
hbck exits.



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