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From lars hofhansl <la...@apache.org>
Subject Re: All region server died due to "Parent directory doesn't exist"
Date Thu, 09 May 2013 16:38:59 GMT
Another symptom is that about 1h before the RSs started dying I get logs like this:
2013-05-08 15:02:50,723 DEBUG org.apache.hadoop.hbase.replication.regionserver.ReplicationSource:
Unable to open a reader, sleeping 1000 times


Replication is not the problem here, but it indicates that it suddenly cannot no longer read
the log files.
There is nothing interesting in the master log, and as I said HDFS is fine.

-- Lars



----- Original Message -----
From: lars hofhansl <larsh@apache.org>
To: "dev@hbase.apache.org" <dev@hbase.apache.org>
Cc: 
Sent: Thursday, May 9, 2013 9:16 AM
Subject: Re: All region server died due to "Parent directory doesn't exist"

Thanks Ted. I'll do the same.


----- Original Message -----
From: Ted Yu <yuzhihong@gmail.com>
To: dev@hbase.apache.org; lars hofhansl <larsh@apache.org>
Cc: 
Sent: Thursday, May 9, 2013 9:07 AM
Subject: Re: All region server died due to "Parent directory doesn't exist"

I went through the patch for HBASE-7824 one more time and didn't find
direct correlation to the issue Lars reported.

I am going over the other JIRAs in Lars' list.

Cheers

On Thu, May 9, 2013 at 8:48 AM, lars hofhansl <larsh@apache.org> wrote:

> I will try. I do not think this is the issue, though.
>
> The master is up in my case.
> Right now the cluster is in a state where each region server aborts itself
> shortly after being started (which coincides with having it's log directory
> renamed to ...-splitting).
>
>
> This is a test cluster and I could just start from scratch... This appears
> to be a serious enough problem, though, and I would like to track down the
> issue.
>
> -- Lars
>
>
>
> ----- Original Message -----
> From: Ted Yu <yuzhihong@gmail.com>
> To: "dev@hbase.apache.org" <dev@hbase.apache.org>
> Cc: "dev@hbase.apache.org" <dev@hbase.apache.org>
> Sent: Thursday, May 9, 2013 2:04 AM
> Subject: Re: All region server died due to "Parent directory doesn't exist"
>
> The config came from hbase-7824.
>
> There are other JIRAs in Lars' list which are related to log splitting.
>
> I think more investigation is needed.
>
> Cheers
>
> On May 9, 2013, at 1:59 AM, Andrew Purtell <apurtell@apache.org> wrote:
>
> > So that is HBASE-7824, right?
> >
> > On Thu, May 9, 2013 at 4:33 PM, Ted Yu <yuzhihong@gmail.com> wrote:
> >
> >> hbase.master.wait.for.log.splitting
> >
> >
> >
> >
> > --
> > Best regards,
> >
> >   - Andy
> >
> > Problems worthy of attack prove their worth by hitting back. - Piet Hein
> > (via Tom White)
>
>


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