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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Region server dies at regular intervals for unknown reasons.
Date Wed, 08 Feb 2017 03:21:11 GMT
You can search in master log for the region backward.
The log would tell you which region server last tried to open it.

Pastebin the relevant snippet of region server log pertaining to the
attempted open of the region.

Thanks

On Tue, Feb 7, 2017 at 7:17 PM, Kang Minwoo <minwoo.kang@outlook.com> wrote:

> Yes. I agree with you.
> But I can not upgrade right away.
>
> The problem is that region servers that have received a particular region
> continue to die.
> I got the name of that region.
>
> What would I do to find out if a region server dies when it receives a
> region?
>
> Thanks.
> ________________________________
> 보낸 사람: Ted Yu <yuzhihong@gmail.com>
> 보낸 날짜: 2017년 2월 7일 화요일 오전 11:38:23
> 받는 사람: user@hbase.apache.org
> 제목: Re: Region server dies at regular intervals for unknown reasons.
>
> 0.96 was so old.
>
> Please consider upgrading.
>
> You can do rolling upgrade to 0.98 / 1.x releases (e.g. 1.1.8 or 1.3.0).
>
> On Mon, Feb 6, 2017 at 6:04 PM, Kang Minwoo <minwoo.kang@outlook.com>
> wrote:
>
> > The version I use is very low.
> >
> > hbase: 0.96.2
> > hadoop: 2.4.1
> >
> > I did not run hbck.
> >
> > Thanks
> > ________________________________
> > 보낸 사람: Ted Yu <yuzhihong@gmail.com>
> > 보낸 날짜: 2017년 2월 7일 화요일 오전 10:40:28
> > 받는 사람: user@hbase.apache.org
> > 제목: Re: Region server dies at regular intervals for unknown reasons.
> >
> > Kang:
> > Please let us know the release of hbase and hadoop you use.
> >
> > Did you run hbck around the time region server crashed ?
> >
> > If there was inconsistency, please pastebin as well.
> >
> > Thanks
> >
> > On Mon, Feb 6, 2017 at 5:36 PM, Ganesh Viswanathan <gansvv@gmail.com>
> > wrote:
> >
> > > Check the GC logs for HBase and HDFS. Tail and post HBase logs from
> > > regionserver and from active HBase master to help debug the root cause.
> > >
> > >
> > >
> > > On Mon, Feb 6, 2017 at 5:27 PM Kang Minwoo <minwoo.kang@outlook.com>
> > > wrote:
> > >
> > > > Hello,
> > > >
> > > >
> > > > My region servers die at regular intervals for unknown reasons.
> > > > I restarted HBase and region servers continued to die.
> > > >
> > > > I solved it by eliminating Old WAL.
> > > >
> > > > Now I'm going through the logs and trying to find the cause.
> > > > But I do not know where to look.
> > > >
> > > > Please let me know if I need to watch carefully to find out why the
> > > Region
> > > > server is dying.
> > > > I think it will be very helpful.
> > > >
> > > > Not all region servers were killed, and only some region servers
> died.
> > > >
> > > > Thanks.
> > > >
> > >
> >
>

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