Hi All,

I am facing recurring region server down issue below are the error can
anybody help me out this:-



java.io.IOException: File from recovered queue is nowhere to be found
        at
org.apache.hadoop.hbase.replication.regionserver.ReplicationSource$ReplicationSourceWorkerThread.openReader(ReplicationSource.java:804)
        at
org.apache.hadoop.hbase.replication.regionserver.ReplicationSource$ReplicationSourceWorkerThread.run(ReplicationSource.java:542)
Caused by: java.io.FileNotFoundException: File does not exist:
/hbase/oldWALs/xxxxxxxxxx
        at
org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:66)
        at
org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:56)
        at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsUpdateTimes(FSNamesystem.java:1932)
        at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1873)
        at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1853)
        at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1825)
        at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:559)
        at
org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.getBlockLocations(AuthorizationProviderProxyClientProtocol.java:87)
        at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:363)
        at
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
        at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:619)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1060)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2044)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2040)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1707)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2038)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at
org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
        at
org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:73)
        at
org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1215)
        at
org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1203)
        at
org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1193)
        at
org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:299)
        at
org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:265)
        at
org.apache.hadoop.hdfs.DFSInputStream.<init>(DFSInputStream.java:257)
        at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1492)
        at
org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:302)
        at
org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:298)
        at
org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
        at
org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:298)
        at
org.apache.hadoop.fs.FilterFileSystem.open(FilterFileSystem.java:161)
        at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:766)
        at
org.apache.hadoop.hbase.wal.WALFactory.createReader(WALFactory.java:291)
        at
org.apache.hadoop.hbase.wal.WALFactory.createReader(WALFactory.java:267)
        at
org.apache.hadoop.hbase.wal.WALFactory.createReader(WALFactory.java:255)
        at
org.apache.hadoop.hbase.wal.WALFactory.createReader(WALFactory.java:397)
        at
org.apache.hadoop.hbase.replication.regionserver.ReplicationWALReaderManager.openReader(ReplicationWALReaderManager.java:69)
        at
org.apache.hadoop.hbase.replication.regionserver.ReplicationSource$ReplicationSourceWorkerThread.openReader(ReplicationSource.java:746)
        ... 1 more
Caused by:
org.apache.hadoop.ipc.RemoteException(java.io.FileNotFoundException): File
does not exist: /hbase/oldWALs/xxxxxxxxx
        at
org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:66)
        at
org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:56)
        at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsUpdateTimes(FSNamesystem.java:1932)

Best Regards,
ANKIT BEOHAR

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