RE: ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /var/lib/hadoop-0.20/cache/hadoop/dfs/name/current
can you try delete this directory manually? Please check other process already running with this directory configured. Regards, Uma From: Vijayakumar Ramdoss [nellaivi...@gmail.com] Sent: Thursday, February 02, 2012 1:27 AM To: common-user@hadoop.apache.org Subject: ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /var/lib/hadoop-0.20/cache/hadoop/dfs/name/current Hi All, I am trying to start the Namenode from my machine, Its throwing the error message, *ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /var/lib/hadoop-0.20/cache/hadoop/dfs/name/current* Please refer the log information from here, vijayram@ubuntu:/etc$ hadoop namenode -format 12/02/01 14:07:48 INFO namenode.NameNode: STARTUP_MSG: / STARTUP_MSG: Starting NameNode STARTUP_MSG: host = ubuntu/127.0.1.1 STARTUP_MSG: args = [-format] STARTUP_MSG: version = 0.20.2-cdh3u3 STARTUP_MSG: build = file:///data/1/tmp/nightly_2012-01-26_09-40-25_3/hadoop-0.20-0.20.2+923.194-1~squeeze -r 03b655719d13929bd68bb2c2f9cee615b389cea9; compiled by 'root' on Thu Jan 26 11:54:44 PST 2012 / Re-format filesystem in /var/lib/hadoop-0.20/cache/hadoop/dfs/name ? (Y or N) Y 12/02/01 14:08:10 INFO util.GSet: VM type = 64-bit 12/02/01 14:08:10 INFO util.GSet: 2% max memory = 17.77875 MB 12/02/01 14:08:10 INFO util.GSet: capacity = 2^21 = 2097152 entries 12/02/01 14:08:10 INFO util.GSet: recommended=2097152, actual=2097152 12/02/01 14:08:10 INFO security.UserGroupInformation: JAAS Configuration already set up for Hadoop, not re-installing. 12/02/01 14:08:10 INFO namenode.FSNamesystem: fsOwner=vijayram (auth:SIMPLE) 12/02/01 14:08:10 INFO namenode.FSNamesystem: supergroup=supergroup 12/02/01 14:08:10 INFO namenode.FSNamesystem: isPermissionEnabled=false 12/02/01 14:08:10 INFO namenode.FSNamesystem: dfs.block.invalidate.limit=1000 12/02/01 14:08:10 INFO namenode.FSNamesystem: isAccessTokenEnabled=false accessKeyUpdateInterval=0 min(s), accessTokenLifetime=0 min(s) 12/02/01 14:08:10 ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /var/lib/hadoop-0.20/cache/hadoop/dfs/name/current at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:292) at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1246) at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1265) at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1127) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1244) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1260) Thanks and Regards Vijay nellaivi...@gmail.com
Re: ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /var/lib/hadoop-0.20/cache/hadoop/dfs/name/current
Vijay, [Moving to cdh-u...@cloudera.org | https://groups.google.com/a/cloudera.org/group/cdh-user/topics since this is CDH3 specific] You need to run that command as the 'hdfs' user, since the specific dirs are writable only by the group 'hadoop': $ sudo -u hdfs hadoop namenode -format On Thu, Feb 2, 2012 at 1:27 AM, Vijayakumar Ramdoss wrote: > Hi All, > I am trying to start the Namenode from my machine, Its throwing the error > message, > *ERROR namenode.NameNode: > java.io.IOException: Cannot remove current directory: > /var/lib/hadoop-0.20/cache/hadoop/dfs/name/current* > > Please refer the log information from here, > vijayram@ubuntu:/etc$ hadoop namenode -format > 12/02/01 14:07:48 INFO namenode.NameNode: STARTUP_MSG: > / > STARTUP_MSG: Starting NameNode > STARTUP_MSG: host = ubuntu/127.0.1.1 > STARTUP_MSG: args = [-format] > STARTUP_MSG: version = 0.20.2-cdh3u3 > STARTUP_MSG: build = > file:///data/1/tmp/nightly_2012-01-26_09-40-25_3/hadoop-0.20-0.20.2+923.194-1~squeeze > -r 03b655719d13929bd68bb2c2f9cee615b389cea9; compiled by 'root' on Thu Jan > 26 11:54:44 PST 2012 > / > Re-format filesystem in /var/lib/hadoop-0.20/cache/hadoop/dfs/name ? (Y or > N) Y > 12/02/01 14:08:10 INFO util.GSet: VM type = 64-bit > 12/02/01 14:08:10 INFO util.GSet: 2% max memory = 17.77875 MB > 12/02/01 14:08:10 INFO util.GSet: capacity = 2^21 = 2097152 entries > 12/02/01 14:08:10 INFO util.GSet: recommended=2097152, actual=2097152 > 12/02/01 14:08:10 INFO security.UserGroupInformation: JAAS Configuration > already set up for Hadoop, not re-installing. > 12/02/01 14:08:10 INFO namenode.FSNamesystem: fsOwner=vijayram (auth:SIMPLE) > 12/02/01 14:08:10 INFO namenode.FSNamesystem: supergroup=supergroup > 12/02/01 14:08:10 INFO namenode.FSNamesystem: isPermissionEnabled=false > 12/02/01 14:08:10 INFO namenode.FSNamesystem: > dfs.block.invalidate.limit=1000 > 12/02/01 14:08:10 INFO namenode.FSNamesystem: isAccessTokenEnabled=false > accessKeyUpdateInterval=0 min(s), accessTokenLifetime=0 min(s) > 12/02/01 14:08:10 ERROR namenode.NameNode: java.io.IOException: Cannot > remove current directory: /var/lib/hadoop-0.20/cache/hadoop/dfs/name/current > at > org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:292) > at > org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1246) > at > org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1265) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1127) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1244) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1260) > > > Thanks and Regards > Vijay > > nellaivi...@gmail.com -- Harsh J Customer Ops. Engineer Cloudera | http://tiny.cloudera.com/about
