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https://issues.apache.org/jira/browse/HBASE-16830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15575738#comment-15575738
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Stephen Yuan Jiang commented on HBASE-16830:
--------------------------------------------

[~tedyu], seems like you are "re-inventing the wheel yourself" :-) You fixed 
HBASE-16359 in 1.4 and 2.0; I think porting the change to 1.3 should fix this 
problem.

> RSRpcServices#openRegion() should handle the case where table descriptor is 
> null
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-16830
>                 URL: https://issues.apache.org/jira/browse/HBASE-16830
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.3.0
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>             Fix For: 1.3.0
>
>         Attachments: 16830.branch-1.3.txt, 16830.branch-1.3.txt, 
> testClusterId-output.txt
>
>
> Over in HBASE-16349, [~mantonov] pointed me to the failed TestClusterId in 
> Jenkins 1.3 build.
> I ran the test locally with Java 8 and consistently stumbled over timeout in 
> starting the mini cluster:
> {code}
> 2016-10-13 15:41:05,276 INFO  
> [RpcServer.FifoWFPBQ.priority.handler=5,queue=1,port=59233] 
> regionserver.RSRpcServices(1620): Open hbase:namespace,,1476398463993.        
>                        7ab1d0b3b7be8b9a7ce9af61c29d5342.
> 2016-10-13 15:41:05,277 ERROR 
> [RpcServer.FifoWFPBQ.priority.handler=5,queue=1,port=59233] 
> ipc.RpcServer(2320): Unexpected throwable object
> java.lang.NullPointerException
>   at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.openRegion(RSRpcServices.java:1679)
>   at 
> org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:22737)
>   at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2270)
>   at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:123)
>   at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:188)
>   at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:168)
> {code}
> It turned out that htd for hbase:namespace table was null.
> Once the NPE is fixed, the test passes.



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