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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16830) RSRpcServices#openRegion() should handle the case where table descriptor is null
Date Fri, 14 Oct 2016 01:34:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15573783#comment-15573783
] 

Ted Yu commented on HBASE-16830:
--------------------------------

{code}
testScanEmptyToEmpty(org.apache.hadoop.hbase.mapred.TestMultiTableSnapshotInputFormat)  Time
elapsed: 0.034 sec  <<< ERROR!
java.io.IOException: java.util.concurrent.ExecutionException: java.io.IOException: Unable
to create region directory: /tmp/scantest1_snapshot__abe45cbd-cb5f-4a97-b20e-e475516571d3/data/default/scantest1/3c1d56cec2b7990b64e3fdff852ab921
	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.util.concurrent.FutureTask.get(FutureTask.java:188)
	at org.apache.hadoop.hbase.util.ModifyRegionUtils.createRegions(ModifyRegionUtils.java:180)
	at org.apache.hadoop.hbase.snapshot.RestoreSnapshotHelper.cloneHdfsRegions(RestoreSnapshotHelper.java:527)
	at org.apache.hadoop.hbase.snapshot.RestoreSnapshotHelper.restoreHdfsRegions(RestoreSnapshotHelper.java:234)
	at org.apache.hadoop.hbase.snapshot.RestoreSnapshotHelper.restoreHdfsRegions(RestoreSnapshotHelper.java:170)
	at org.apache.hadoop.hbase.snapshot.RestoreSnapshotHelper.copySnapshotForScanner(RestoreSnapshotHelper.java:736)
	at org.apache.hadoop.hbase.mapreduce.MultiTableSnapshotInputFormatImpl.restoreSnapshot(MultiTableSnapshotInputFormatImpl.java:249)
	at org.apache.hadoop.hbase.mapreduce.MultiTableSnapshotInputFormatImpl.restoreSnapshots(MultiTableSnapshotInputFormatImpl.java:243)
	at org.apache.hadoop.hbase.mapreduce.MultiTableSnapshotInputFormatImpl.setInput(MultiTableSnapshotInputFormatImpl.java:80)
	at org.apache.hadoop.hbase.mapred.MultiTableSnapshotInputFormat.setInput(MultiTableSnapshotInputFormat.java:127)
	at org.apache.hadoop.hbase.mapred.TableMapReduceUtil.initMultiTableSnapshotMapperJob(TableMapReduceUtil.java:148)
	at org.apache.hadoop.hbase.mapred.TestMultiTableSnapshotInputFormat.runJob(TestMultiTableSnapshotInputFormat.java:60)
Caused by: java.io.IOException: Unable to create region directory: /tmp/scantest1_snapshot__abe45cbd-cb5f-4a97-b20e-e475516571d3/data/default/scantest1/3c1d56cec2b7990b64e3fdff852ab921
	at org.apache.hadoop.hbase.regionserver.HRegionFileSystem.createRegionOnFileSystem(HRegionFileSystem.java:892)
	at org.apache.hadoop.hbase.regionserver.HRegion.createHRegion(HRegion.java:6477)
	at org.apache.hadoop.hbase.util.ModifyRegionUtils.createRegion(ModifyRegionUtils.java:205)
	at org.apache.hadoop.hbase.util.ModifyRegionUtils$1.call(ModifyRegionUtils.java:173)
	at org.apache.hadoop.hbase.util.ModifyRegionUtils$1.call(ModifyRegionUtils.java:170)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
{code}
Not related to the patch.

> 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
>         Attachments: 16830.branch-1.3.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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