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From vivek <vivvekbha...@gmail.com>
Subject Re: Error and problem when running a hadoop job
Date Tue, 09 Sep 2014 17:31:22 GMT
is there any namespace mismatch?
Try to delete the data in datanode directory

On Tue, Sep 9, 2014 at 10:41 PM, Sandeep Khurana <skhurana333@gmail.com>
wrote:

> check the log file at ...../hadoop/hadoop-datanide-latdevweb02.out (As per
> ur last screen shot). There can be various reasons of datanode not
> starting, the real issue will be logged into this file.
>
> On Tue, Sep 9, 2014 at 10:06 PM, YIMEN YIMGA Gael <
> gael.yimen-yimga@sgcib.com> wrote:
>
>> Hi,
>>
>>
>>
>> When I run the following command to launch DATANODE as shown in the
>> screenshot below, all is ok
>>
>> But when I run JPS command, I do not see the datanode process
>>
>>
>>
>>
>>
>> That’s where my worry is L L
>>
>>
>>
>> Standing by ….
>>
>>
>>
>> *From:* vivek [mailto:vivvekbharat@gmail.com]
>> *Sent:* Tuesday 9 September 2014 17:27
>>
>> *To:* user@hadoop.apache.org
>> *Subject:* Re: Error and problem when running a hadoop job
>>
>>
>>
>> check whether datanode is started.
>>
>>
>>
>>
>>
>> On Tue, Sep 9, 2014 at 7:26 PM, YIMEN YIMGA Gael <
>> gael.yimen-yimga@sgcib.com> wrote:
>>
>> Yes, all about ssh access, have been done.
>>
>>
>>
>> My cluster is a single node cluster.
>>
>>
>>
>> Standing by …
>>
>>
>>
>> *From:* Sandeep Khurana [mailto:skhurana333@gmail.com]
>> *Sent:* Tuesday 9 September 2014 15:54
>> *To:* user@hadoop.apache.org
>> *Subject:* Re: Error and problem when running a hadoop job
>>
>>
>>
>> I hope you did do passphrase less ssh access to localhost by generating
>> keys etc?
>>
>> On Sep 9, 2014 7:18 PM, "YIMEN YIMGA Gael" <gael.yimen-yimga@sgcib.com>
>> wrote:
>>
>> Hello Dear hadoopers,
>>
>>
>>
>> I hope you are doing well.
>>
>>
>>
>> I tried to run WordCount.jar file to experience running hadoop jobs.
>> After launching the program as shown in the screenshot below, I have the
>> message in the screenshot.
>>
>> The job tries to connect to the datanode. But failed after 10 attempts, I
>> got the error in the second screenshot.
>>
>> After that, I first stop all the Hadoop deamons, second format the dfs,
>> third re-launch Hadoop deamons, and I notice using the JPS command that
>> DATANODE is not running.
>>
>> I then run the datanode alone with the command bin/hadoop –deamon.sh
>>  start datanode as shown in the third screenshot, but the datanode is still
>> not up and running.
>>
>>
>>
>> Could someone advice in this case, please ?
>>
>>
>>
>> Standing by for your habitual support.
>>
>>
>>
>> Thank in advance.
>>
>>
>>
>> GYY
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
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>> --
>>
>>
>>
>>
>>
>>
>>
>> Thanks and Regards,
>>
>> VIVEK KOUL
>>
>
>
>
> --
> Thanks and regards
> Sandeep Khurana
>



-- 







Thanks and Regards,

VIVEK KOUL

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