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From Vijayakumar Ramdoss <nellaivi...@gmail.com>
Subject ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /var/lib/hadoop-0.20/cache/hadoop/dfs/name/current
Date Wed, 01 Feb 2012 19:57:14 GMT
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

nellaivijay@gmail.com

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