Hi, This may be the issue with namenode is not correctly formatted. On Sat, Feb 18, 2012 at 1:50 PM, Ben Cuthbert <bencuthb...@ymail.com> wrote:
> All sometimes when I startup my hadoop I get the following error > > 12/02/17 10:29:56 INFO namenode.NameNode: STARTUP_MSG: > /************************************************************ > STARTUP_MSG: Starting NameNode > STARTUP_MSG: host =iMac.local/192.168.0.191 > STARTUP_MSG: args = [] > STARTUP_MSG: version = 0.20.203.0 > STARTUP_MSG: build = > http://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-security-203-r > 1099333; compiled by 'oom' on Wed May 4 07:57:50 PDT 2011 > ************************************************************/ > 12/02/17 10:29:56 WARN impl.MetricsSystemImpl: Metrics system not started: > Cannot locate configuration: tried hadoop-metrics2-namenode.properties, > hadoop-metrics2.properties > 2012-02-17 10:29:56.994 java[4065:1903] Unable to load realm info from > SCDynamicStore > 12/02/17 10:29:57 INFO util.GSet: VM type = 64-bit > 12/02/17 10:29:57 INFO util.GSet: 2% max memory = 17.77875 MB > 12/02/17 10:29:57 INFO util.GSet: capacity = 2^21 = 2097152 entries > 12/02/17 10:29:57 INFO util.GSet: recommended=2097152, actual=2097152 > 12/02/17 10:29:57 INFO namenode.FSNamesystem: fsOwner=scottsue > 12/02/17 10:29:57 INFO namenode.FSNamesystem: supergroup=supergroup > 12/02/17 10:29:57 INFO namenode.FSNamesystem: isPermissionEnabled=true > 12/02/17 10:29:57 INFO namenode.FSNamesystem: > dfs.block.invalidate.limit=100 > 12/02/17 10:29:57 INFO namenode.FSNamesystem: isAccessTokenEnabled=false > accessKeyUpdateInterval=0 min(s), accessTokenLifetime=0 min(s) > 12/02/17 10:29:57 INFO namenode.FSNamesystem: Registered > FSNamesystemStateMBean and NameNodeMXBean > 12/02/17 10:29:57 INFO namenode.NameNode: Caching file names occuring more > than 10 times > 12/02/17 10:29:57 INFO common.Storage: Number of files = 190 > 12/02/17 10:29:57 INFO common.Storage: Number of files under construction > = 0 > 12/02/17 10:29:57 INFO common.Storage: Image file of size 26377 loaded in > 0 seconds. > 12/02/17 10:29:57 ERROR namenode.NameNode: java.lang.NullPointerException > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:1113) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:1125) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.addNode(FSDirectory.java:1028) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedAddFile(FSDirectory.java:205) > at > org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadFSEdits(FSEditLog.java:613) > at > org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSEdits(FSImage.java:1009) > at > org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:827) > at > org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:365) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:97) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:379) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:353) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:254) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:434) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1153) > at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1162) > > 12/02/17 10:29:57 INFO namenode.NameNode: SHUTDOWN_MSG: > /************************************************************ > SHUTDOWN_MSG: Shutting down NameNode at iMac.local/192.168.0.191 > ************************************************************/ -- Join me at http://hadoopworkshop.eventbrite.com/
