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.
