thanx a lot...is working fine now
> From: [email protected] > Date: Sat, 25 Jan 2014 12:15:08 +0530 > Subject: Re: Datanode Shutting down automatically > To: [email protected] > > You reformatted your NameNode at some point, but likely failed to also > clear out the DN data directories, which would not auto-wipe > themselves. > > Clear the contents of /app/hadoop/tmp/dfs/data at the DN and it should > start up the next time you invoke it. > > P.s. Please do not email [email protected] with any user > questions. It exists for project level discussions and announcements. > > On Sat, Jan 25, 2014 at 11:15 AM, Pranav Gadekar <[email protected]> > wrote: > > This is my log file. > > > > 014-01-24 17:24:58,238 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: > > STARTUP_MSG: > > /************************************************************ > > STARTUP_MSG: Starting DataNode > > STARTUP_MSG: host = user/127.0.1.1 > > STARTUP_MSG: args = [] > > STARTUP_MSG: version = 1.2.1 > > STARTUP_MSG: build = > > https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2 -r > > 1503152; compiled by 'mattf' on Mon Jul 22 15:23:09 PDT 2013 > > STARTUP_MSG: java = 1.6.0_27 > > ************************************************************/ > > 2014-01-24 17:24:58,622 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: > > loaded properties from hadoop-metrics2.properties > > 2014-01-24 17:24:58,669 INFO > > org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source > > MetricsSystem,sub=Stats registered. > > 2014-01-24 17:24:58,670 INFO > > org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period > > at 10 second(s). > > 2014-01-24 17:24:58,670 INFO > > org.apache.hadoop.metrics2.impl.MetricsSystemImpl: DataNode metrics system > > started > > 2014-01-24 17:24:58,877 INFO > > org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source ugi > > registered. > > 2014-01-24 17:24:58,880 WARN > > org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source name ugi already > > exists! > > 2014-01-24 17:25:10,778 ERROR > > org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: > > Incompatible namespaceIDs in /app/hadoop/tmp/dfs/data: namenode namespaceID > > = 102782159; datanode namespaceID = 1227483104 > > at > > org.apache.hadoop.hdfs.server.datanode.DataStorage.doTransition(DataStorage.java:232) > > at > > org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(DataStorage.java:147) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:414) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:321) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1712) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1651) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1669) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1795) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1812) > > > > 2014-01-24 17:25:10,779 INFO > > org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG: > > /************************************************************ > > SHUTDOWN_MSG: Shutting down DataNode at user/127.0.1.1 > > ************************************************************/ > > 2014-01-24 17:26:13,413 INFO > > org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG: > > /************************************************************ > > STARTUP_MSG: Starting DataNode > > STARTUP_MSG: host = user/127.0.1.1 > > STARTUP_MSG: args = [] > > STARTUP_MSG: version = 1.2.1 > > STARTUP_MSG: build = > > https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2 -r > > 1503152; compiled by 'mattf' on Mon Jul 22 15:23:09 PDT 2013 > > STARTUP_MSG: java = 1.6.0_27 > > ************************************************************/ > > 2014-01-24 17:26:13,510 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: > > loaded properties from hadoop-metrics2.properties > > 2014-01-24 17:26:13,518 INFO > > org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source > > MetricsSystem,sub=Stats registered. > > 2014-01-24 17:26:13,518 INFO > > org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period > > at 10 second(s). > > 2014-01-24 17:26:13,518 INFO > > org.apache.hadoop.metrics2.impl.MetricsSystemImpl: DataNode metrics system > > started > > 2014-01-24 17:26:13,626 INFO > > org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source ugi > > registered. > > 2014-01-24 17:26:13,628 WARN > > org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source name ugi already > > exists! > > 2014-01-24 17:26:28,860 ERROR > > org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: > > Incompatible namespaceIDs in /app/hadoop/tmp/dfs/data: namenode namespaceID > > = 102782159; datanode namespaceID = 1227483104 > > at > > org.apache.hadoop.hdfs.server.datanode.DataStorage.doTransition(DataStorage.java:232) > > at > > org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(DataStorage.java:147) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:414) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:321) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1712) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1651) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1669) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1795) > > at > > org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1812) > > > > 2014-01-24 17:26:28,860 INFO > > org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG: > > /************************************************************ > > SHUTDOWN_MSG: Shutting down DataNode at user/127.0.1.1 > > ************************************************************/ > > > > > > Shutdown command is initialised automatically. > > Please take a look and respond with a solution. > > > > -- > Harsh J
