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Hadoop >> mail # user >> HADOOP UPGRADE ISSUE


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Re: HADOOP UPGRADE ISSUE
Ah alright, yes you can take down the shell instance of NN you've started
by issuing a simple Ctrl+C, and then start it with the other DNs, SNN in
the background with the regular start-dfs or start-all command. That is
safe to do.

P.s. Be sure to finalize your upgrade after adequate testing has been done.
You can do this at a later time.
On Thu, Nov 22, 2012 at 3:00 PM, yogesh dhari <[EMAIL PROTECTED]> wrote:

>  Hello Harsh..
>
> Thanks for your suggestion :-), I need more guidance over it.
>
> Terminal through I have run command
> hadoop namenode -upgrade (Say Terminal-1)
>
> terminal-1 got stuck at this point.
>
>
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 9 on 9000: starting
> ""and still cursor is blinking...""
>
> Should I do stop it using ctrl+c command.  If I do so it will kill the
> process.
>
> If I do open new terminal(say Terminal-2) and run JPS it shows
> 6374 NameNode
> 7615 Jps
>
> As you mentioned to run hadoop fs -ls /
> it shows all stored directories..( on Terminal-2 )
>
> Now. Should I kill the process over Termial-1. What should I do to make it
> complete without any loss of data..
>
> I am attaching screen shot..
>
> Please have a look
>
>
> Thanks & Regards
> Yogesh Kumar
>
>
>
>
>
>
>
>
> ------------------------------
> From: [EMAIL PROTECTED]
> Date: Thu, 22 Nov 2012 14:14:00 +0530
> Subject: Re: HADOOP UPGRADE ISSUE
> To: [EMAIL PROTECTED]
>
>
> If your UI is already up, then NN is already functional. The UI merely
> shows that your upgrade is done but has not been manually finalized by you
> (leaving it open for a rollback if needed).
>
> You could try a simple "hadoop fs -ls /" to see if NN is functional, run
> some other regular job based tests of yours, and then finalize the new
> format by issuing "hadoop dfsadmin -finalizeUpgrade" to make the upgrade
> permanent (no rollback possible after this).
>
>
> On Thu, Nov 22, 2012 at 1:49 PM, yogesh dhari <[EMAIL PROTECTED]>wrote:
>
>  Thanks Uma,
>
> I used command
> hadoop namenode -upgrade and its started well but got stuck at one point.
>
> 12/11/22 13:06:19 INFO mortbay.log: Started
> SelectChannelConnector@localhost:50070
> 12/11/22 13:06:19 INFO namenode.NameNode: Web-server up at: localhost:50070
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server Responder: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server listener on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 0 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 1 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 2 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 3 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 4 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 5 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 6 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 7 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 8 on 9000: starting
> 12/11/22 13:06:19 INFO ipc.Server: IPC Server handler 9 on 9000: starting
>
> from this point its not showing any progress for past 30 + mins...
>
>
> and Web ui shows
>
> NameNode 'localhost:9000'  Started: Thu Nov 22 13:06:17 IST 2012 Version: 1.0.4,
> r1393290  Compiled: Wed Oct 3 05:13:58 UTC 2012 by hortonfo  Upgrades: Upgrade
> for version -32 has been completed. Upgrade is not finalized.
>
> Please suggest
>
> Regards
> Yogesh Kumar
>
>
>
>
> ------------------------------
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> Subject: RE: HADOOP UPGRADE ISSUE
> Date: Thu, 22 Nov 2012 07:05:51 +0000
>
>
>  start-all.sh will not carry any arguments to pass to nodes.
> Start with start-dfs.sh
> or start directly namenode with upgrade option. ./hadoop namenode -upgrade
>
> Regards,
> Uma
>  ------------------------------
> *From:* yogesh dhari [[EMAIL PROTECTED]]
> *Sent:* Thursday, November 22, 2012 12:23 PM

Harsh J
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB