sudo -u hdfs hdfs haadmin -failover --forceactive nn1 nn2 run this to make one is active
Thanks & Regards Venkatram On Fri, Jul 26, 2013 at 1:04 PM, ch huang <justlo...@gmail.com> wrote: > 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 <jiangbinglo...@gmail.com>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 <justlo...@gmail.com> >> >>> 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 >> > > -- N Venkata Rami Reddy Hadoop Admin Cloudwick Technologies
