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MapReduce >> mail # user >> Hadoop datanode becomes down


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Re: Hadoop datanode becomes down
HI,
May be  datanode  is down because of  -

1.Network issues

2.Size of disk

3.find out the datanode log file.if you get any exception then u try to put
the file in HDFS.

Thanks

Manoj

On Tue, Aug 6, 2013 at 3:28 PM, Devaraj k <[EMAIL PROTECTED]> wrote:

>  Can you find out the reason for going Data node down from Data Node log?
> Do you get any exception in the client when you try to put the file in HDFS.
> ****
>
> ** **
>
> Thanks****
>
> Devaraj k****
>
> ** **
>
> *From:* Manickam P [mailto:[EMAIL PROTECTED]]
> *Sent:* 06 August 2013 15:07
> *To:* [EMAIL PROTECTED]
> *Subject:* Hadoop datanode becomes down****
>
> ** **
>
> Hi,****
>
> ** **
>
> I have a n number of file each of around 25GB. I have a cluster set up
> with 6 machines in data node and one master node. When i move this file
> from my local to HDFS location sometimes data node becomes down. Any
> specific reason for this behavior? Or do i need to follow any other way to
> move this file from local to HDFS? ****
>
> ** **
>
> Please help me to resolve this. ****
>
> ** **
>
> ** **
>
> ** **
>
> Thanks,
> Manickam P****
>

--
*
With Best Regards
Manoj Kumar Sahu
Cloudwick Technologies
Hyderabad-500016.
8374232928 /7842496524
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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