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Re: NameNode low on available disk space
Hi,

The exact error is displayed on your log and should be somewhat self
explanatory:

org.apache.hadoop.hdfs.server.common.InconsistentFSStateException:
Directory /mnt/san1/hdfs/cache/hdfs/dfs/name is in an inconsistent
state: storage directory does not exist or is not accessible.

Please check this one's availability, permissions (the NN user should
be able to access it).

On Thu, Feb 28, 2013 at 1:46 PM, Mohit Vadhera
<[EMAIL PROTECTED]> wrote:
> Please find below logs for shutting down the namenode service. Can anybody
> check this
>
> 2013-02-28 02:07:51,752 WARN org.apache.hadoop.hdfs.server.common.Util: Path
> /mnt/san1/hdfs/cache/hdfs/dfs/name should be specified as a URI in
> configuration files. Please update hdfs configuration.
> 2013-02-28 02:07:51,754 WARN org.apache.hadoop.hdfs.server.common.Util: Path
> /mnt/san1/hdfs/cache/hdfs/dfs/name should be specified as a URI in
> configuration files. Please update hdfs configuration.
> 2013-02-28 02:07:51,754 WARN
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Only one image storage
> directory (dfs.namenode.name.dir) configured. Beware of dataloss due to lack
> of redundant storage directories!
> 2013-02-28 02:07:51,754 WARN
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Only one namespace
> edits storage directory (dfs.namenode.edits.dir) configured. Beware of
> dataloss due to lack of redundant storage directories!
> 2013-02-28 02:07:51,884 INFO org.apache.hadoop.util.HostsFileReader:
> Refreshing hosts (include/exclude) list
> 2013-02-28 02:07:51,890 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager:
> dfs.block.invalidate.limit=1000
> 2013-02-28 02:07:51,909 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager:
> dfs.block.access.token.enable=false
> 2013-02-28 02:07:51,910 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager:
> defaultReplication         = 1
> 2013-02-28 02:07:51,910 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: maxReplication
> = 512
> 2013-02-28 02:07:51,910 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: minReplication
> = 1
> 2013-02-28 02:07:51,910 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager:
> maxReplicationStreams      = 2
> 2013-02-28 02:07:51,910 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager:
> shouldCheckForEnoughRacks  = false
> 2013-02-28 02:07:51,910 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager:
> replicationRecheckInterval = 3000
> 2013-02-28 02:07:51,910 INFO
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager:
> encryptDataTransfer        = false
> 2013-02-28 02:07:51,920 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: fsOwner             > hdfs (auth:SIMPLE)
> 2013-02-28 02:07:51,920 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: supergroup          > hadmin
> 2013-02-28 02:07:51,920 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: isPermissionEnabled > true
> 2013-02-28 02:07:51,920 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: HA Enabled: false
> 2013-02-28 02:07:51,925 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Append Enabled: true
> 2013-02-28 02:07:52,462 INFO
> org.apache.hadoop.hdfs.server.namenode.NameNode: Caching file names occuring
> more than 10 times
> 2013-02-28 02:07:52,466 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
> dfs.namenode.safemode.threshold-pct = 0.9990000128746033
> 2013-02-28 02:07:52,467 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
> dfs.namenode.safemode.min.datanodes = 0
> 2013-02-28 02:07:52,467 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
> dfs.namenode.safemode.extension     = 0
> 2013-02-28 02:07:52,469 INFO org.apache.hadoop.hdfs.server.common.Storage:
> Storage directory /mnt/san1/hdfs/cache/hdfs/dfs/name does not exist.
> 2013-02-28 02:07:52,471 INFO
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping NameNode metrics

Harsh J