If we kill the HMaster and try restarting it.. the following exceptions are
logged
plitting hlog 2 of 2:
hdfs://10.18.52.108:9000/hbase/.logs/linux108,60020,1302346754067/linux108%3
A60020.1302350355407, length=1459
2011-04-09 18:02:56,017 INFO org.apache.hadoop.hbase.util.FSUtils:
Recovering file
hdfs://10.18.52.108:9000/hbase/.logs/linux108,60020,1302346754067/linux108%3
A60020.1302350355407
2011-04-09 18:02:56,037 ERROR
com.huawei.isap.ump.ha.client.RPCRetryAndSwitchInvoker: Exception occured
while connecting to server : /10.18.52.108:9000
org.apache.hadoop.ipc.RemoteException:
org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException: failed to
create file
/hbase/.logs/linux108,60020,1302346754067/linux108%3A60020.1302350355407 for
DFSClient_hb_m_linux108:60000_1302352358592 on client 10.18.52.108, because
this file is already being created by NN_Recovery on 10.18.52.108
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLeaseInternal(FSN
amesystem.java:1453)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSName
system.java:1291)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFile(FSNamesystem.
java:1473)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.append(NameNode.java:628)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:541)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1105)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1101)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1099)
at org.apache.hadoop.ipc.Client.call(Client.java:942)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:239)
at $Proxy5.append(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.huawei.isap.ump.ha.client.RPCRetryAndSwitchInvoker.invokeMethod(RPCRetry
AndSwitchInvoker.java:157)
at
com.huawei.isap.ump.ha.client.RPCRetryAndSwitchInvoker.invokeMethod(RPCRetry
AndSwitchInvoker.java:145)
at
com.huawei.isap.ump.ha.client.RPCRetryAndSwitchInvoker.invoke(RPCRetryAndSwi
tchInvoker.java:54)
at $Proxy5.append(Unknown Source)
at org.apache.hadoop.hdfs.DFSClient.append(DFSClient.java:741)
at
org.apache.hadoop.hdfs.DistributedFileSystem.append(DistributedFileSystem.ja
va:366)
at org.apache.hadoop.fs.FileSystem.append(FileSystem.java:665)
at
org.apache.hadoop.hbase.util.FSUtils.recoverFileLease(FSUtils.java:634)
at
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter.splitLog(HLogSplitter.
java:261)
at
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter.splitLog(HLogSplitter.
java:188)
at
org.apache.hadoop.hbase.master.MasterFileSystem.splitLog(MasterFileSystem.ja
va:196)
at
org.apache.hadoop.hbase.master.MasterFileSystem.splitLogAfterStartup(MasterF
ileSystem.java:180)
at
org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:379
)
at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:278)
But the HMaster is starting correctly. Here only I have only 2 datanodes
and the replication factor is 2.
Regards
Ram
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