hbase报Dead Region Servers

Problem Description:

16010 Port started successfully, 16020 not started.

hbase-root-regionserver-hbase2.log日志:

2019-08-14 16:45:10,552 WARN  [Thread-37] hdfs.DFSClient: DataStreamer Exception
org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /hbase/default/tsdb/3f2398c5b49b581c09687c49a739b007/recovered.edits/0000000000006253152-hbase2%2C16020%2C1562822459462.1565198820284.temp could only be written to 0 of the 1 minReplication nodes. There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
    at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:2121)
    at org.apache.hadoop.hdfs.server.namenode.FSDirWriteFileOp.chooseTargetForNewBlock(FSDirWriteFileOp.java:295)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2702)
    at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:875)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:561)
    at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
    at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
    at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:872)
    at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:818)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:422)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
    at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2678)

    at org.apache.hadoop.ipc.Client.call(Client.java:1476)
    at org.apache.hadoop.ipc.Client.call(Client.java:1413)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
    at com.sun.proxy.$Proxy18.addBlock(Unknown Source)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:418)
    at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
    at com.sun.proxy.$Proxy19.addBlock(Unknown Source)
    at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:372)
    at com.sun.proxy.$Proxy20.addBlock(Unknown Source)
    at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1603)
    at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1388)
    at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:554)
2019-08-14 16:45:10,568 ERROR [RS_LOG_REPLAY_OPS-regionserver/hbase2:16020-1-Writer-2] wal.WALSplitter: Got while writing log entry to log
java.io.IOException: File /hbase/default/tsdb/3f2398c5b49b581c09687c49a739b007/recovered.edits/0000000000006253152-hbase2%2C16020%2C1562822459462.1565198820284.temp could only be written to 0 of the 1 minReplication nodes. There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
    at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:2121)
    at org.apache.hadoop.hdfs.server.namenode.FSDirWriteFileOp.chooseTargetForNewBlock(FSDirWriteFileOp.java:295)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2702)
    at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:875)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:561)
    at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
    at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
    at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:872)
    at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:818)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:422)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
    at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2678)

    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
    at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:95)
    at org.apache.hadoop.hbase.wal.WALSplitter$LogRecoveredEditsOutputSink.appendBuffer(WALSplitter.java:1601)
    at org.apache.hadoop.hbase.wal.WALSplitter$LogRecoveredEditsOutputSink.append(WALSplitter.java:1559)
    at org.apache.hadoop.hbase.wal.WALSplitter$WriterThread.writeBuffer(WALSplitter.java:1084)
    at org.apache.hadoop.hbase.wal.WALSplitter$WriterThread.doRun(WALSplitter.java:1076)
    at org.apache.hadoop.hbase.wal.WALSplitter$WriterThread.run(WALSplitter.java:1046)

 

Log on 16010:

The reason: Reference Site https://issues.apache.org/jira/browse/HBASE-12426

Description
I initially had a set of 5 region servers which had a single table which was pre split into 30 regions and was evenly distributed to all the regions with data.I then went ahead and removed/decommissioned a coupe of region servers,so in the end I have 3 region servers.Ran hbase hbck and verified there were 0 inconsistencies.However when 'status' command is issued is from hbase shell it shows a dead region server and the same is displayed in master UI as well.Fail over of hbase master did not fix the issue.On investigation we could see some WAL entries which was still pointing to the old region server.
/hbase/WALs/myserver,60020,1406745344969-splitting

After removing these orphan entries from hdfs and master failover the dead region servers went away.I wonder if this could have caused any replication issues in the cluster.

  

Solution: split file deletion / hbase / WALs

<-! View -> 

 HDFS -ls the DFS -R / HBase / Wals 

<! - Delete -> 
HDFS the DFS -rm -R / HBase / Wals / * 
<-! Restart HBase -> 
STOP-HBase .sh 
start-hbase.sh

 

16010 verified on:

 

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Origin www.cnblogs.com/yybrhr/p/11353659.html