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From Neutron sharc <neutronsh...@gmail.com>
Subject Re: hbase 0.94.26 hangs when a datanode is suspended via SIGSTOP
Date Wed, 08 Jul 2015 18:26:33 GMT
Some update.

It turns out we were using a wrong HDFS version.  The issue is gone once we
pull in the right hadoop-hdfs jar.


On Mon, Jun 22, 2015 at 10:29 AM, Ted Yu <yuzhihong@gmail.com> wrote:

> bq. my hbase client keeps stuck
>
> Can you provide stack trace for the client ?
>
> Were region servers operating properly ? Can you check server logs during
> that time frame ?
>
> Cheers
>
> On Thu, Jun 18, 2015 at 1:54 AM, Neutron sharc <neutronsharc@gmail.com>
> wrote:
>
> > Btw,  hbase 0.94.26 is on top of HDFS 2.5.0-chd5.3.2.
> >
> > On Wed, Jun 17, 2015 at 10:41 AM, Neutron sharc <neutronsharc@gmail.com>
> > wrote:
> >
> > > Hi community,
> > >
> > > I am testing the time to recovery of hbase 0.94.26.   0.94.26 can
> > tolerate
> > > region server failures very smoothly.   However, it seems  client
> cannot
> > > recover when a datanode is suspended (through kill -SIGSTOP).   When DN
> > is
> > > paused,  I expect hbase client will timeout and pick the next DN with
> > > data.  However my hbase client keeps stuck there, until I resume DN
> with
> > > SIGCONT.
> > >
> > > Are there any special parameters I should tune regarding this scenario?
> > > Thanks!
> > >
> > >
> > >
> > > -Neutron
> > >
> >
>

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