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From Gary Yang <garyya...@yahoo.com>
Subject Re: bin/hadoop namenode -format IOException: Invalid argument
Date Tue, 23 Mar 2010 19:40:58 GMT
No. The namenode is not running. "bin/hadoop namenode -format" was the very first command.
I have not got chance to start the namenode yet. Any idea?

--- On Tue, 3/23/10, Suresh Srinivas <sureshms@yahoo-inc.com> wrote:

> From: Suresh Srinivas <sureshms@yahoo-inc.com>
> Subject: Re: bin/hadoop namenode -format          IOException: Invalid argument
> To: "general@hadoop.apache.org" <general@hadoop.apache.org>
> Date: Tuesday, March 23, 2010, 12:27 PM
> Is namenode running when you tried
> this operation? If so shutdown the namenode process and try
> it again.
> 
> 
> On 3/23/10 11:19 AM, "Gary Yang" <garyyang6@yahoo.com>
> wrote:
> 
> Hi All,
> 
> I got exception below. I followed the Quick Start for the
> Pseudo-Distributed Operation. I did what the quick start
> says. Can someone help?
> 
> cat conf/core-site.xml
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl"
> href="configuration.xsl"?>
> 
> <!-- Put site-specific property overrides in this file.
> -->
> 
> <configuration>
> 
>   <property>
>     <name>fs.default.name</name>
>    
> <value>hdfs://localhost:9000</value>
>   </property>
> 
> </configuration>
> 
> 
> cat conf/hdfs-site.xml
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl"
> href="configuration.xsl"?>
> 
> <!-- Put site-specific property overrides in this file.
> -->
> 
> <configuration>
>   <property>
>     <name>dfs.replication</name>
>     <value>1</value>
>   </property>
> </configuration>
> 
> 
> cat conf/mapred-site.xml
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl"
> href="configuration.xsl"?>
> 
> <!-- Put site-specific property overrides in this file.
> -->
> 
> <configuration>
>   <property>
>     <name>mapred.job.tracker</name>
>     <value>localhost:9001</value>
>   </property>
> </configuration>
> 
> 
> 
> Below are errors:
> 
> 
> -bash-3.2# bin/hadoop namenode -format
> 10/03/23 11:54:54 INFO namenode.NameNode: STARTUP_MSG:
> /************************************************************
> STARTUP_MSG: Starting NameNode
> STARTUP_MSG:   host = Board2/192.168.0.185
> STARTUP_MSG:   args = [-format]
> STARTUP_MSG:   version = 0.20.2
> STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20
> -r 911707; compiled by 'chrisdo' on Fri Feb 19 08:07:34 UTC
> 2010
> ************************************************************/
> 10/03/23 11:54:56 INFO namenode.FSNamesystem:
> fsOwner=root,root,bin,daemon,sys,adm,disk,wheel
> 10/03/23 11:54:56 INFO namenode.FSNamesystem:
> supergroup=supergroup
> 10/03/23 11:54:56 INFO namenode.FSNamesystem:
> isPermissionEnabled=true
> 10/03/23 11:54:56 INFO common.Storage: java.io.IOException:
> Invalid argument
>         at
> sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:900)
>         at
> java.nio.channels.FileChannel.tryLock(FileChannel.java:974)
>         at
> org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.tryLock(Storage.java:527)
>         at
> org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.lock(Storage.java:505)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1087)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1110)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:856)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:948)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:965)
> 
> 10/03/23 11:54:56 ERROR namenode.NameNode:
> java.io.IOException: Invalid argument
>         at
> sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:900)
>         at
> java.nio.channels.FileChannel.tryLock(FileChannel.java:974)
>         at
> org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.tryLock(Storage.java:527)
>         at
> org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.lock(Storage.java:505)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1087)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1110)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:856)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:948)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:965)
> 
> 10/03/23 11:54:56 INFO namenode.NameNode: SHUTDOWN_MSG:
> /************************************************************
> SHUTDOWN_MSG: Shutting down NameNode at
> Board2/192.168.0.185
> ************************************************************/
> 
> 
> 
> 
> Thanks,
> 
> 
> Gary
> 
> 
> 
> 
> 
> 
> 
> 


      

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