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https://issues.apache.org/jira/browse/HBASE-21464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16902808#comment-16902808
]
wenbang commented on HBASE-21464:
---------------------------------
Hi，[~apurtell]
Have you found the root cause? I am also confused about this issue.
metaCache.clearCache has been executed.
>From the log you can see that the meta location has been updated.
{code:java}
LOG.info("Call exception, tries=" + tries + ", retries=" + retries + ",
started=" +
(EnvironmentEdgeManager.currentTime() - this.globalStartTime) + " ms ago, "
+ "cancelled=" + cancelled.get() + ", msg="
+ t.getMessage() + " " +
callable.getExceptionMessageAdditionalDetail());{code}
The callable.getExceptionMessageAdditionalDetail() has printed the correct meta
location.
But why are retries still the wrong location?
> Splitting blocked with meta NSRE during split transaction
> ---------------------------------------------------------
>
> Key: HBASE-21464
> URL: https://issues.apache.org/jira/browse/HBASE-21464
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.5.0, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.8, 1.4.7
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Blocker
> Fix For: 1.4.9
>
> Attachments: HBASE-21464-branch-1.patch, HBASE-21464-branch-1.patch,
> HBASE-21464-branch-1.patch, HBASE-21464-branch-1.patch
>
>
> Splitting is blocked during split transaction. The split worker is trying to
> update meta but isn't able to relocate it after NSRE:
> {noformat}
> 2018-11-09 17:50:45,277 INFO
> [regionserver/ip-172-31-5-92.us-west-2.compute.internal/172.31.5.92:8120-splits-1541785709434]
> client.RpcRetryingCaller: Call exception, tries=13, retries=350,
> started=88590 ms ago, cancelled=false,
> msg=org.apache.hadoop.hbase.NotServingRegionException: Region hbase:meta,,1
> is not online on ip-172-31-13-83.us-west-2.compute.internal,8120,1541785618832
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:3088)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1271)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.execService(RSRpcServices.java:2198)
> at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:36617)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2396)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:124)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:297)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:277)row
> 'test,,1541785709452.5ba6596f0050c2dab969d152829227c6.44' on table
> 'hbase:meta' at region=hbase:meta,1.1588230740,
> hostname=ip-172-31-15-225.us-west-2.compute.internal,8120,1541785640586,
> seqNum=0{noformat}
> Clients, in this case YCSB, are hung with part of the keyspace missing:
> {noformat}
> 2018-11-09 17:51:06,033 DEBUG [hconnection-0x5739e567-shared--pool1-t165]
> client.ConnectionManager$HConnectionImplementation: locateRegionInMeta
> parentTable=hbase:meta, metaLocation=, attempt=14 of 35 failed; retrying
> after sleep of 20158 because: No server address listed in hbase:meta for
> region
> test,user307326104267982763,1541785754600.ef90030b05cb02305b75e9bfbc3ee081.
> containing row user3301635648728421323{noformat}
> Balancing cannot run indefinitely because the split transaction is stuck
> {noformat}
> 2018-11-09 17:49:55,478 DEBUG
> [RpcServer.default.FPBQ.Fifo.handler=29,queue=2,port=8100] master.HMaster:
> Not running balancer because 3 region(s) in transition:
> [{ef90030b05cb02305b75e9bfbc3ee081 state=SPLITTING_NEW, ts=1541785754606,
> server=ip-172-31-5-92.us-west-2.compute.internal,8120,1541785626417},
> {5ba6596f0050c2dab969d152829227c6 state=SPLITTING, ts=1541785754606,
> server=ip-172-31-5-92.us-west-2.compute....{noformat}
>
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