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https://issues.apache.org/jira/browse/HBASE-20139?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Abhishek Singh Chouhan updated HBASE-20139:
-------------------------------------------
Status: Patch Available (was: Open)
branch-1 patch applies to branch-1.4 too.
> NPE in RSRpcServices.get() when getRegion throws an exception
> -------------------------------------------------------------
>
> Key: HBASE-20139
> URL: https://issues.apache.org/jira/browse/HBASE-20139
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.3.1
> Reporter: Abhishek Singh Chouhan
> Assignee: Abhishek Singh Chouhan
> Priority: Minor
> Fix For: 1.3.2, 1.5.0, 1.4.3
>
> Attachments: HBASE-20139.branch-1.001.patch,
> HBASE-20139.branch-1.3.001.patch
>
>
> We can get a NPE in RsRpcServices at
> {code:java}
> } finally {
> if (regionServer.metricsRegionServer != null) {
> regionServer.metricsRegionServer.updateGet(
> -> region.getTableDesc().getTableName(), EnvironmentEdgeManager.currentTime()
> - before);
> }
> if (quota != null) {
> quota.close();
> }{code}
> when region itself is null which might happen when getRegion throws an
> exception, this is then sent back to the client which is not able to handle
> this/make sense of it.
> {code:java}
> 2018-03-06 08:31:25,100 DEBUG [0,queue=4,port=60020] ipc.RpcServer -
> RpcServer.FifoWFPBQ.default.handler=30,queue=4,port=60020: callId: 5605567
> service: ClientService methodName: Get size: 79 connection: xyz:58736
> deadline: 9223372036854775807
> java.io.IOException
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2431)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:124)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:188)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:168)
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.get(RSRpcServices.java:2246)
> at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:35068)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2373)
> ... 3 more{code}
> This has been fixed by [~stack] over at HBASE-18946 for master, backporting
> the same to branch-1, 1.3 and 1.4
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