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HDFS, mail # user - Re: two name node both in standby state?why?


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Re: two name node both in standby state?why?
ch huang 2013-07-26, 07:34
but i have not set autofailover,the ZKFC is really need for manual failover
switch?

On Fri, Jul 26, 2013 at 3:22 PM, Bing Jiang <[EMAIL PROTECTED]>wrote:

> 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
> Tel:(86)134-2619-1361
> weibo: http://weibo.com/jiangbinglover
> BLOG: www.binospace.com
> BLOG: http://blog.sina.com.cn/jiangbinglover
> Focus on distributed computing, HDFS/HBase
>
+
Venkatarami Netla 2013-07-26, 09:38