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MapReduce, mail # user - two name node both in standby state?why?


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ch huang 2013-07-26, 07:04
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Re: two name node both in standby state?why?
Bing Jiang 2013-07-26, 07:22
Please check whether the process of  DFSZKFailoverController is open or
not, and each namenode should be attached with a DFSZKFailoverController.
2013/7/26 ch huang <[EMAIL PROTECTED]>

> i have no idea,why?
>
> 2013-07-26 22:55:30,772 INFO org.apache.hadoop.http.HttpServer: Jetty
> bound to port 50070
> 2013-07-26 22:55:30,772 INFO org.mortbay.log: jetty-6.1.26.cloudera.2
> 2013-07-26 22:55:31,001 WARN
> org.apache.hadoop.security.authentication.server.AuthenticationFilter:
> 'signature.secret' configuration not set, using a random value as secret
> 2013-07-26 22:55:31,054 INFO org.mortbay.log: Started
> SelectChannelConnector@node1:50070
> 2013-07-26 22:55:31,054 INFO
> org.apache.hadoop.hdfs.server.namenode.NameNode: Web-server up at:
> node1:50070
> 2013-07-26 22:55:31,057 INFO org.apache.hadoop.ipc.Server: IPC Server
> Responder: starting
> 2013-07-26 22:55:31,058 INFO org.apache.hadoop.ipc.Server: IPC Server
> listener on 8020: starting
> 2013-07-26 22:55:31,072 INFO
> org.apache.hadoop.hdfs.server.namenode.NameNode: NameNode up at: node1/
> 192.168.142.129:8020
> 2013-07-26 22:55:31,072 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Starting services
> required for standby state
> 2013-07-26 22:55:31,074 INFO
> org.apache.hadoop.hdfs.server.namenode.ha.EditLogTailer: Will roll logs on
> active node at node2/192.168.142.130:8020 every 120 seconds.
> 2013-07-26 22:55:31,084 INFO
> org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer: Starting
> standby checkpoint thread...
> Checkpointing active NN at node2:50070
> Serving checkpoints at node1/192.168.142.129:50070
> 2013-07-26 22:57:31,112 INFO
> org.apache.hadoop.hdfs.server.namenode.ha.EditLogTailer: Triggering log
> roll on remote NameNode node2/192.168.142.130:8020
> 2013-07-26 22:57:31,329 WARN
> org.apache.hadoop.hdfs.server.namenode.ha.EditLogTailer: Unable to trigger
> a roll of the active NN
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.StandbyException):
> Operation category JOURNAL is not supported in state standby
>         at
> org.apache.hadoop.hdfs.server.namenode.ha.StandbyState.checkOperation(StandbyState.java:87)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode$NameNodeHAContext.checkOperation(NameNode.java:1401)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkOperation(FSNamesystem.java:871)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.rollEditLog(FSNamesystem.java:4577)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.rollEditLog(NameNodeRpcServer.java:756)
>         at
> org.apache.hadoop.hdfs.protocolPB.NamenodeProtocolServerSideTranslatorPB.rollEditLog(NamenodeProtocolServerSideTranslatorPB.java:129)
>         at
> org.apache.hadoop.hdfs.protocol.proto.NamenodeProtocolProtos$NamenodeProtocolService$2.callBlockingMethod(NamenodeProtocolProtos.java:8762)
>         at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1002)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1701)
>

--
Bing Jiang
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