I am relatively new here and starting the CDH3u1 (on vmware). The
nameserver is not coming up due to the following error:
2011-10-25 22:47:00,547 INFO org.apache.hadoop.hdfs.server.common.Storage:
Cannot access storage directory /var/lib/hadoop-0.20/cache/hadoop/dfs/name
2011-10-25 22:47:00,549 ERROR
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: FSNamesystem
initialization failed.
org.apache.hadoop.hdfs.server.common.InconsistentFSStateException: Directory
/var/lib/hadoop-0.20/cache/hadoop/dfs/name is in an inconsistent state:
storage directory does not exist or is not accessible.
at
org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:305)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:99)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:358)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:327)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:271)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:465)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1224)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1233)
Now, I first noticed there was a "lock" file. So I sudo rm'ed it and
retried. But same error. Then, not knowing what files are required (if any)
to restart, I moved the entire dir and created a new empty one. Here are
both the new and the 'sav" dirs
cloudera@cloudera-demo:/usr/lib/hadoop/logs$ ll
/var/lib/hadoop-0.20/cache/hadoop/dfs/name
total 8
drwxr-xr-x 2 hdfs hdfs 4096 2011-10-25 23:11 .
drwxr-xr-x 4 hdfs hadoop 4096 2011-10-25 23:11 ..
cloudera@cloudera-demo:/usr/lib/hadoop/logs$ ll
/var/lib/hadoop-0.20/cache/hadoop/dfs/name.sav
total 20
drwxr-xr-x 2 hdfs hdfs 4096 2011-01-24 15:24 image
drwxr-xr-x 2 hdfs hdfs 4096 2011-09-25 11:49 previous.checkpoint
drwxr-xr-x 2 hdfs hdfs 4096 2011-10-25 21:01 current
drwxr-xr-x 5 hdfs hdfs 4096 2011-10-25 23:02 .
drwxr-xr-x 4 hdfs hadoop 4096 2011-10-25 23:11 ..
So then, any recommendations on how to proceed?
thanks
