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HBase >> mail # user >> One Region Server fails - all M/R jobs crash.


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David Koch 2013-11-22, 15:14
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Ted Yu 2013-11-22, 15:17
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Re: One Region Server fails - all M/R jobs crash.
On Fri, Nov 22, 2013 at 4:17 PM, Ted Yu <[EMAIL PROTECTED]> wrote:

> Can you pastebin snippet of:
> 1. task logs which show failure
> 2. region server log shortly before the crash
>
> Thanks
>
>
> On Fri, Nov 22, 2013 at 7:14 AM, David Koch <[EMAIL PROTECTED]> wrote:
>
> > Hello,
> >
> > We experience reliability problems when running M/R jobs over HBase
> tables.
> > Specifically, it suffices for one Region Server to crash in order to fail
> > all M/R jobs.
> >
> > My guess is that this is not normal with a replication factor of 3.
> >
> > The HBase version is 0.94.6 installed as part of of Cloudera 4.4. HBase
> > settings are pre-sets. Cluster size is 30 machines.
> >
> > What steps can I follow to improve the situation?
> >
> > Thank you,
> >
> > /David
> >
>
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David Koch 2013-11-22, 16:55
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Ted Yu 2013-11-22, 17:27
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David Koch 2013-11-22, 17:35
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Dhaval Shah 2013-11-22, 18:00
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Ted Yu 2013-11-22, 18:05
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David Koch 2013-11-22, 19:43
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Dhaval Shah 2013-11-22, 20:06
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Asaf Mesika 2013-11-23, 17:25
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David Koch 2013-11-25, 08:36
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Dhaval Shah 2013-11-25, 16:34