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https://issues.apache.org/jira/browse/HBASE-13653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14536902#comment-14536902
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Jerry He commented on HBASE-13653:
----------------------------------
Hi, Ted
We probably don't need to move up "this.walFactory = setupWALAndReplication()"
anymore.
The client RPC call will anyway be rejected if the region server has not
completed its initialization, even if we move up the walFactory.
ServerNotRunningYetException will be re-tried from the client.
> Uninitialized HRegionServer#walFactory may result in NullPointerException at
> region server startup
> ---------------------------------------------------------------------------------------------------
>
> Key: HBASE-13653
> URL: https://issues.apache.org/jira/browse/HBASE-13653
> Project: HBase
> Issue Type: Bug
> Components: hbase
> Reporter: Romil Choksi
> Assignee: Ted Yu
> Attachments: 13653-branch-1-v2.txt, 13653-branch-1.txt
>
>
> hbase --config /tmp/hbaseConf org.apache.hadoop.hbase.IntegrationTestIngest
> --monkey unbalance
> causes NPE
> {code}
> 2015-05-08 08:44:20,885 ERROR
> [B.defaultRpcServer.handler=28,queue=1,port=16000] master.ServerManager:
> Received exception in RPC for warmup
> server:RegionServer1,16020,1431074656202region: {ENCODED =>
> 40133c823b6d9d9dece99db1aad62730, NAME =>
> 'SYSTEM.SEQUENCE,2\x00\x00\x00,1431070054641.40133c823b6d9d9dece99db1aad62730.',
> STARTKEY => '2\x00\x00\x00', ENDKEY => '3\x00\x00\x00'}exception:
> java.io.IOException: java.io.IOException
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2154)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:101)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:130)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.getWAL(HRegionServer.java:1825)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.warmupRegion(RSRpcServices.java:1559)
> at
> org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:21997)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2112)
> ... 4 more
> {code}
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