when i try to start hadoop then its all services like TaskTracker,
JobTracker, DataNode ,SecondaryNameNode are running except NameNode.So,
HBase is unable to find hadoop as namenode is not up.So please guide me why
this is happening.i have checked all configuration files as well as iptables
/ firewall configuration for that port . everything is ok but unable to know
why this is happening
--
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Shaharyar khan,

Can you include your namenode log details.

On Tue, Apr 10, 2012 at 6:30 PM, shaharyar khan <[EMAIL PROTECTED]
> wrote:

>
> when i try to start hadoop then its all services like TaskTracker,
> JobTracker, DataNode ,SecondaryNameNode are running except NameNode.So,
> HBase is unable to find hadoop as namenode is not up.So please guide me why
> this is happening.i have checked all configuration files as well as
> iptables
> / firewall configuration for that port . everything is ok but unable to
> know
> why this is happening
> --
> View this message in context:
> http://old.nabble.com/namenode-not-starting-tp33661239p33661239.html
> Sent from the Hadoop core-user mailing list archive at Nabble.com.
>
>
--

Tousif
+918050227279

Hello,

I was using cluster for long time and not formatted the namenode.
I ran bin/stop-all.sh and bin/start-all.sh scripts only.

I am using NFS for dfs.name.dir.
hadoop.tmp.dir is a /tmp directory. I've not restarted the OS.  Any way to
recover the data?

Thanks,
Abhay

On Fri, Aug 24, 2012 at 1:01 PM, Bejoy KS <[EMAIL PROTECTED]> wrote:

> **
> Hi Abhay
>
> What is the value for hadoop.tmp.dir or dfs.name.dir . If it was set to
> /tmp the contents would be deleted on a OS restart. You need to change this
> location before you start your NN.
> Regards
> Bejoy KS
>
> Sent from handheld, please excuse typos.
> ------------------------------
> *From: * Abhay Ratnaparkhi <[EMAIL PROTECTED]>
> *Date: *Fri, 24 Aug 2012 12:58:41 +0530
> *To: *<[EMAIL PROTECTED]>
> *ReplyTo: * [EMAIL PROTECTED]
> *Subject: *namenode not starting
>
> Hello,
>
> I had a running hadoop cluster.
> I restarted it and after that namenode is unable to start. I am getting
> error saying that it's not formatted. :(
> Is it possible to recover the data on HDFS?
>
> 2012-08-24 03:17:55,378 ERROR
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: FSNamesystem
> initialization failed.
> java.io.IOException: NameNode is not formatted.
>         at
> org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:434)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:110)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:291)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:270)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:271)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:303)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:433)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:421)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1359)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1368)
> 2012-08-24 03:17:55,380 ERROR
> org.apache.hadoop.hdfs.server.namenode.NameNode: java.io.IOException:
> NameNode is not formatted.
>         at
> org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:434)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:110)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:291)
>         at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:270)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:271)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:303)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:433)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:421)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1359)
>         at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1368)
>
> Regards,
> Abhay
>
>
>