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https://issues.apache.org/jira/browse/HBASE-9387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13756811#comment-13756811
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Jimmy Xiang commented on HBASE-9387:
------------------------------------

+1 on v8 for commit if test is green.  One nit can be fixed at commit: there is 
abort method taking just a reason.
Another nit, the warning message is shared for several different scenarios, if 
ok, it may be better to have a little extra info specific to each scenario. 
                
> Region could get lost during assignment
> ---------------------------------------
>
>                 Key: HBASE-9387
>                 URL: https://issues.apache.org/jira/browse/HBASE-9387
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment
>    Affects Versions: 0.95.2
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>            Priority: Critical
>         Attachments: 9387-v1.txt, 9387-v3.txt, 9387-v4.2.txt, 9387-v4.3.txt, 
> 9387-v4.4.txt, 9387-v4.txt, 9387-v5.txt, 9387-v6.txt, 9387-v7.txt, 
> 9387-v8.txt, hbase-9387.patch, 
> org.apache.hadoop.hbase.TestFullLogReconstruction-output.txt
>
>
> I observed test timeout running against hadoop 2.1.0 with distributed log 
> replay turned on.
> Looks like region state for 1588230740 became inconsistent between master and 
> the surviving region server:
> {code}
> 2013-08-29 22:15:34,180 INFO  [AM.ZK.Worker-pool2-t4] 
> master.RegionStates(299): Onlined 1588230740 on 
> kiyo.gq1.ygridcore.net,57016,1377814510039
> ...
> 2013-08-29 22:15:34,587 DEBUG [Thread-221] 
> client.HConnectionManager$HConnectionImplementation(1269): locateRegionInMeta 
> parentTable=hbase:meta, metaLocation={region=hbase:meta,,1.1588230740, 
> hostname=kiyo.gq1.ygridcore.net,57016,1377814510039, seqNum=0}, attempt=2 of 
> 35 failed; retrying after sleep of 302 because: 
> org.apache.hadoop.hbase.exceptions.RegionOpeningException: Region is being 
> opened: 1588230740
>         at 
> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:2574)
>         at 
> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:3949)
>         at 
> org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:2733)
>         at 
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:26965)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2063)
>         at 
> org.apache.hadoop.hbase.ipc.RpcServer$CallRunner.run(RpcServer.java:1800)
>         at 
> org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.consumerLoop(SimpleRpcScheduler.java:165)
>         at 
> org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.access$000(SimpleRpcScheduler.java:41)
> {code}

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