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From Batyrshin Alexander <0x62...@gmail.com>
Subject Re: ABORTING region server and following HBase cluster "crash"
Date Sun, 09 Sep 2018 19:46:51 GMT
Correct me if im wrong.

But looks like if you have A and B region server that has index and primary table then possible
situation like this.

A and B under writes on table with indexes
A - crash
B failed on index update because A is not operating then B starting aborting
A after restart try to rebuild index from WAL but B at this time is aborting then A starting
aborting too
From this moment nothing happens (0 requests to region servers) and A and B is not responsible
from Master-status web interface


> On 9 Sep 2018, at 04:38, Batyrshin Alexander <0x62ash@gmail.com> wrote:
> 
> After update we still can't recover HBase cluster. Our region servers ABORTING over and
over:
> 
> prod003:
> Sep 09 02:51:27 prod003 hbase[1440]: 2018-09-09 02:51:27,395 FATAL [RpcServer.default.FPBQ.Fifo.handler=92,queue=2,port=60020]
regionserver.HRegionServer: ABORTING region server prod003,60020,1536446665703: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:51:27 prod003 hbase[1440]: 2018-09-09 02:51:27,395 FATAL [RpcServer.default.FPBQ.Fifo.handler=77,queue=7,port=60020]
regionserver.HRegionServer: ABORTING region server prod003,60020,1536446665703: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:52:19 prod003 hbase[1440]: 2018-09-09 02:52:19,224 FATAL [RpcServer.default.FPBQ.Fifo.handler=82,queue=2,port=60020]
regionserver.HRegionServer: ABORTING region server prod003,60020,1536446665703: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:52:28 prod003 hbase[1440]: 2018-09-09 02:52:28,922 FATAL [RpcServer.default.FPBQ.Fifo.handler=94,queue=4,port=60020]
regionserver.HRegionServer: ABORTING region server prod003,60020,1536446665703: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:55:02 prod003 hbase[957]: 2018-09-09 02:55:02,096 FATAL [RpcServer.default.FPBQ.Fifo.handler=95,queue=5,port=60020]
regionserver.HRegionServer: ABORTING region server prod003,60020,1536450772841: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:55:18 prod003 hbase[957]: 2018-09-09 02:55:18,793 FATAL [RpcServer.default.FPBQ.Fifo.handler=97,queue=7,port=60020]
regionserver.HRegionServer: ABORTING region server prod003,60020,1536450772841: Could not
update the index table, killing server region because couldn't write to an index table
> 
> prod004:
> Sep 09 02:52:13 prod004 hbase[4890]: 2018-09-09 02:52:13,541 FATAL [RpcServer.default.FPBQ.Fifo.handler=83,queue=3,port=60020]
regionserver.HRegionServer: ABORTING region server prod004,60020,1536446387325: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:52:50 prod004 hbase[4890]: 2018-09-09 02:52:50,264 FATAL [RpcServer.default.FPBQ.Fifo.handler=75,queue=5,port=60020]
regionserver.HRegionServer: ABORTING region server prod004,60020,1536446387325: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:53:40 prod004 hbase[4890]: 2018-09-09 02:53:40,709 FATAL [RpcServer.default.FPBQ.Fifo.handler=66,queue=6,port=60020]
regionserver.HRegionServer: ABORTING region server prod004,60020,1536446387325: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:54:00 prod004 hbase[4890]: 2018-09-09 02:54:00,060 FATAL [RpcServer.default.FPBQ.Fifo.handler=89,queue=9,port=60020]
regionserver.HRegionServer: ABORTING region server prod004,60020,1536446387325: Could not
update the index table, killing server region because couldn't write to an index table
> 
> prod005:
> Sep 09 02:52:50 prod005 hbase[3772]: 2018-09-09 02:52:50,661 FATAL [RpcServer.default.FPBQ.Fifo.handler=65,queue=5,port=60020]
regionserver.HRegionServer: ABORTING region server prod005,60020,1536446400009: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:53:27 prod005 hbase[3772]: 2018-09-09 02:53:27,542 FATAL [RpcServer.default.FPBQ.Fifo.handler=90,queue=0,port=60020]
regionserver.HRegionServer: ABORTING region server prod005,60020,1536446400009: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:54:00 prod005 hbase[3772]: 2018-09-09 02:53:59,915 FATAL [RpcServer.default.FPBQ.Fifo.handler=7,queue=7,port=60020]
regionserver.HRegionServer: ABORTING region server prod005,60020,1536446400009: Could not
update the index table, killing server region because couldn't write to an index table
> Sep 09 02:54:30 prod005 hbase[3772]: 2018-09-09 02:54:30,058 FATAL [RpcServer.default.FPBQ.Fifo.handler=16,queue=6,port=60020]
regionserver.HRegionServer: ABORTING region server prod005,60020,1536446400009: Could not
update the index table, killing server region because couldn't write to an index table
> 
> And so on...
> 
> Trace is the same everywhere:
> 
> Sep 09 02:54:30 prod005 hbase[3772]: org.apache.phoenix.hbase.index.exception.MultiIndexWriteFailureException:
 disableIndexOnFailure=true, Failed to write to multiple index tables: [KM_IDX1, KM_IDX2,
KM_HISTORY_IDX1, KM_HISTORY_IDX2, KM_HISTORY_IDX3]
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.hbase.index.write.TrackingParallelWriterIndexCommitter.write(TrackingParallelWriterIndexCommitter.java:235)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.hbase.index.write.IndexWriter.write(IndexWriter.java:195)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.hbase.index.write.IndexWriter.writeAndKillYourselfOnFailure(IndexWriter.java:156)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.hbase.index.write.IndexWriter.writeAndKillYourselfOnFailure(IndexWriter.java:145)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.hbase.index.Indexer.doPostWithExceptions(Indexer.java:620)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.hbase.index.Indexer.doPost(Indexer.java:595)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.hbase.index.Indexer.postBatchMutateIndispensably(Indexer.java:578)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$37.call(RegionCoprocessorHost.java:1048)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionOperation.call(RegionCoprocessorHost.java:1711)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1789)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1745)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postBatchMutateIndispensably(RegionCoprocessorHost.java:1044)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:3646)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3108)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3050)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.commitBatch(UngroupedAggregateRegionObserver.java:271)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.commitBatchWithRetries(UngroupedAggregateRegionObserver.java:241)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.rebuildIndices(UngroupedAggregateRegionObserver.java:1068)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.doPostScannerOpen(UngroupedAggregateRegionObserver.java:386)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.overrideDelegate(BaseScannerRegionObserver.java:239)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.nextRaw(BaseScannerRegionObserver.java:287)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2843)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:3080)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:36613)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2354)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:124)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:297)
> Sep 09 02:54:30 prod005 hbase[3772]:         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:277)
> 
>> On 9 Sep 2018, at 01:44, Batyrshin Alexander <0x62ash@gmail.com <mailto:0x62ash@gmail.com>>
wrote:
>> 
>> Thank you.
>> We're updating our cluster right now...
>> 
>> 
>>> On 9 Sep 2018, at 01:39, Ted Yu <yuzhihong@gmail.com <mailto:yuzhihong@gmail.com>>
wrote:
>>> 
>>> It seems you should deploy hbase with the following fix:
>>> 
>>> HBASE-21069 NPE in StoreScanner.updateReaders causes RS to crash
>>> 
>>> 1.4.7 was recently released.
>>> 
>>> FYI
>>> 
>>> On Sat, Sep 8, 2018 at 3:32 PM Batyrshin Alexander <0x62ash@gmail.com <mailto:0x62ash@gmail.com>>
wrote:
>>>  Hello,
>>> 
>>> We got this exception from prod006 server
>>> 
>>> Sep 09 00:38:02 prod006 hbase[18907]: 2018-09-09 00:38:02,532 FATAL [MemStoreFlusher.1]
regionserver.HRegionServer: ABORTING region server prod006,60020,1536235102833: Replay of
WAL required. Forcing server shutdown
>>> Sep 09 00:38:02 prod006 hbase[18907]: org.apache.hadoop.hbase.DroppedSnapshotException:
region: KM,c\xEF\xBF\xBD\x16I7\xEF\xBF\xBD\x0A"A\xEF\xBF\xBDd\xEF\xBF\xBD\xEF\xBF\xBD\x19\x07t,1536178245576.60c121ba50e67f2429b9ca2ba2a11bad.
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2645)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2322)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2284)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2170)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2095)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:508)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:478)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at java.lang.Thread.run(Thread.java:748)
>>> Sep 09 00:38:02 prod006 hbase[18907]: Caused by: java.lang.NullPointerException
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at java.util.ArrayList.<init>(ArrayList.java:178)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.StoreScanner.updateReaders(StoreScanner.java:863)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:1172)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HStore.updateStorefiles(HStore.java:1145)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HStore.access$900(HStore.java:122)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.commit(HStore.java:2505)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2600)
>>> Sep 09 00:38:02 prod006 hbase[18907]:         ... 9 more
>>> Sep 09 00:38:02 prod006 hbase[18907]: 2018-09-09 00:38:02,532 FATAL [MemStoreFlusher.1]
regionserver.HRegionServer: RegionServer abort: loaded coprocessors are: [org.apache.hadoop.hbase.regionserver.IndexHalfStoreFileReaderGenerator,
org.apache.phoenix.coprocessor.SequenceRegionObserver, org.apache.phoenix.c
>>> 
>>> After that we got ABORTING on almost every Region Servers in cluster with different
reasons:
>>> 
>>> prod003
>>> Sep 09 01:12:11 prod003 hbase[11552]: 2018-09-09 01:12:11,799 FATAL [PostOpenDeployTasks:88bfac1dfd807c4cd1e9c1f31b4f053f]
regionserver.HRegionServer: ABORTING region server prod003,60020,1536444066291: Exception
running postOpenDeployTasks; region=88bfac1dfd807c4cd1e9c1f31b4f053f
>>> Sep 09 01:12:11 prod003 hbase[11552]: java.io.InterruptedIOException: #139, interrupted.
currentNumberOfTask=8
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.client.AsyncProcess.waitForMaximumCurrentTasks(AsyncProcess.java:1853)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.client.AsyncProcess.waitForMaximumCurrentTasks(AsyncProcess.java:1823)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.client.AsyncProcess.waitForAllPreviousOpsAndReset(AsyncProcess.java:1899)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.client.BufferedMutatorImpl.backgroundFlushCommits(BufferedMutatorImpl.java:250)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.client.BufferedMutatorImpl.flush(BufferedMutatorImpl.java:213)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:1484)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.client.HTable.put(HTable.java:1031)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.MetaTableAccessor.put(MetaTableAccessor.java:1033)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.MetaTableAccessor.putToMetaTable(MetaTableAccessor.java:1023)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.MetaTableAccessor.updateLocation(MetaTableAccessor.java:1433)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.MetaTableAccessor.updateRegionLocation(MetaTableAccessor.java:1400)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.regionserver.HRegionServer.postOpenDeployTasks(HRegionServer.java:2041)
>>> Sep 09 01:12:11 prod003 hbase[11552]:         at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler$PostOpenDeployTasksThread.run(OpenRegionHandler.java:329)
>>> 
>>> prod002
>>> Sep 09 01:12:30 prod002 hbase[29056]: 2018-09-09 01:12:30,144 FATAL [RpcServer.default.FPBQ.Fifo.handler=36,queue=6,port=60020]
regionserver.HRegionServer: ABORTING region server prod002,60020,1536235138673: Could not
update the index table, killing server region because couldn't write to an index table
>>> Sep 09 01:12:30 prod002 hbase[29056]: org.apache.phoenix.hbase.index.exception.MultiIndexWriteFailureException:
 disableIndexOnFailure=true, Failed to write to multiple index tables: [KM_IDX1, KM_IDX2,
KM_HISTORY1, KM_HISTORY2, 
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.hbase.index.write.TrackingParallelWriterIndexCommitter.write(TrackingParallelWriterIndexCommitter.java:235)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.hbase.index.write.IndexWriter.write(IndexWriter.java:195)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.hbase.index.write.IndexWriter.writeAndKillYourselfOnFailure(IndexWriter.java:156)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.hbase.index.write.IndexWriter.writeAndKillYourselfOnFailure(IndexWriter.java:145)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.hbase.index.Indexer.doPostWithExceptions(Indexer.java:620)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.hbase.index.Indexer.doPost(Indexer.java:595)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.hbase.index.Indexer.postBatchMutateIndispensably(Indexer.java:578)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$37.call(RegionCoprocessorHost.java:1048)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionOperation.call(RegionCoprocessorHost.java:1711)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1789)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1745)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postBatchMutateIndispensably(RegionCoprocessorHost.java:1044)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:3646)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3108)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3050)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.commitBatch(UngroupedAggregateRegionObserver.java:271)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.access$000(UngroupedAggregateRegionObserver.java:164)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver$1.doMutation(UngroupedAggregateRegionObserver.java:246)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.index.PhoenixIndexFailurePolicy.doBatchWithRetries(PhoenixIndexFailurePolicy.java:455)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.handleIndexWriteException(UngroupedAggregateRegionObserver.java:929)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.commitBatchWithRetries(UngroupedAggregateRegionObserver.java:243)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.rebuildIndices(UngroupedAggregateRegionObserver.java:1077)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.doPostScannerOpen(UngroupedAggregateRegionObserver.java:386)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.overrideDelegate(BaseScannerRegionObserver.java:239)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.nextRaw(BaseScannerRegionObserver.java:287)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2843)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:3080)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:36613)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2354)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:124)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:297)
>>> Sep 09 01:12:30 prod002 hbase[29056]:         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:277)
>>> 
>>> 
>>> And etc...
>>> 
>>> Master-status web interface shows that contact lost from this aborted servers.

>> 
> 


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