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Posted to user@hbase.apache.org by Hari Sreekumar <hs...@clickable.com> on 2010/11/08 12:04:04 UTC
Regionserver not shutting down automatically
Hi,
I have seen that the *stop-hbase.sh* script does not
execute*hbase-daemons.sh stop regionservers
*, although it does stop the master and zookeeper. Is this intentional? Why
is it? Won't it create any problems if I forget to stop all regionservers
and restart hbase before they get killed?
Thanks,
Hari
Re: Regionserver not shutting down automatically
Posted by Hari Sreekumar <hs...@clickable.com>.
Thanks John! I do stop-hbase.sh usually byt when I check jps in the
regionservers, I see that HRegionServer process is still running. I am not
sure if it automatically shuts down after some time though.
hari
On Mon, Nov 8, 2010 at 10:09 PM, Jonathan Gray <jg...@facebook.com> wrote:
> Hari,
>
> When you issue a shutdown to the master process, it performs a full cluster
> shutdown. You don't have to issue regionserver stops from the shell, the
> Master takes care of it over RPC.
>
> You can stop an individual regionserver (bin/hbase-daemon.sh stop
> regionserver) but if you're doing a full shutdown, it's best to do it
> through the master shutdown (bin/stop-hbase.sh).
>
> JG
>
> > -----Original Message-----
> > From: Hari Sreekumar [mailto:hsreekumar@clickable.com]
> > Sent: Monday, November 08, 2010 7:57 AM
> > To: user@hbase.apache.org
> > Subject: Re: Regionserver not shutting down automatically
> >
> > Hi Mike,
> > I am using hbase-0.20.6 apache version. In fact I just
> > checked
> > the sources in trunk - stop-hbase.sh (
> > http://svn.apache.org/repos/asf/hbase/trunk/bin/stop-hbase.sh) has no
> > mention of regionservers whereas start-hbase.sh (
> > http://svn.apache.org/repos/asf/hbase/trunk/bin/start-hbase.sh) does
> > have
> > code to start regionservers. Is it not supposed to be stopped in that
> > way?
> >
> > hari
> >
> > On Mon, Nov 8, 2010 at 8:53 PM, Michael Segel
> > <mi...@hotmail.com>wrote:
> >
> > >
> > > Hari,
> > >
> > > First, which version are you running?
> > > If you're running Cloudera's CDH3, then you don't want to use the
> > > start/stop HBase or Hadoop scripts.
> > >
> > > The second thing is to check your regionservers file on your HBase
> > Master
> > > node. If there are no servers listed, it won't work.
> > >
> > > HTH
> > >
> > > -Mike
> > >
> > >
> > > > Date: Mon, 8 Nov 2010 16:34:04 +0530
> > > > Subject: Regionserver not shutting down automatically
> > > > From: hsreekumar@clickable.com
> > > > To: user@hbase.apache.org
> > > >
> > > > Hi,
> > > >
> > > > I have seen that the *stop-hbase.sh* script does not
> > > > execute*hbase-daemons.sh stop regionservers
> > > > *, although it does stop the master and zookeeper. Is this
> > intentional?
> > > Why
> > > > is it? Won't it create any problems if I forget to stop all
> > regionservers
> > > > and restart hbase before they get killed?
> > > >
> > > > Thanks,
> > > > Hari
> > >
> > >
>
RE: Regionserver not shutting down automatically
Posted by Jonathan Gray <jg...@facebook.com>.
Hari,
When you issue a shutdown to the master process, it performs a full cluster shutdown. You don't have to issue regionserver stops from the shell, the Master takes care of it over RPC.
You can stop an individual regionserver (bin/hbase-daemon.sh stop regionserver) but if you're doing a full shutdown, it's best to do it through the master shutdown (bin/stop-hbase.sh).
JG
> -----Original Message-----
> From: Hari Sreekumar [mailto:hsreekumar@clickable.com]
> Sent: Monday, November 08, 2010 7:57 AM
> To: user@hbase.apache.org
> Subject: Re: Regionserver not shutting down automatically
>
> Hi Mike,
> I am using hbase-0.20.6 apache version. In fact I just
> checked
> the sources in trunk - stop-hbase.sh (
> http://svn.apache.org/repos/asf/hbase/trunk/bin/stop-hbase.sh) has no
> mention of regionservers whereas start-hbase.sh (
> http://svn.apache.org/repos/asf/hbase/trunk/bin/start-hbase.sh) does
> have
> code to start regionservers. Is it not supposed to be stopped in that
> way?
>
> hari
>
> On Mon, Nov 8, 2010 at 8:53 PM, Michael Segel
> <mi...@hotmail.com>wrote:
>
> >
> > Hari,
> >
> > First, which version are you running?
> > If you're running Cloudera's CDH3, then you don't want to use the
> > start/stop HBase or Hadoop scripts.
> >
> > The second thing is to check your regionservers file on your HBase
> Master
> > node. If there are no servers listed, it won't work.
> >
> > HTH
> >
> > -Mike
> >
> >
> > > Date: Mon, 8 Nov 2010 16:34:04 +0530
> > > Subject: Regionserver not shutting down automatically
> > > From: hsreekumar@clickable.com
> > > To: user@hbase.apache.org
> > >
> > > Hi,
> > >
> > > I have seen that the *stop-hbase.sh* script does not
> > > execute*hbase-daemons.sh stop regionservers
> > > *, although it does stop the master and zookeeper. Is this
> intentional?
> > Why
> > > is it? Won't it create any problems if I forget to stop all
> regionservers
> > > and restart hbase before they get killed?
> > >
> > > Thanks,
> > > Hari
> >
> >
Re: Regionserver not shutting down automatically
Posted by Hari Sreekumar <hs...@clickable.com>.
Hi Mike,
I am using hbase-0.20.6 apache version. In fact I just checked
the sources in trunk - stop-hbase.sh (
http://svn.apache.org/repos/asf/hbase/trunk/bin/stop-hbase.sh) has no
mention of regionservers whereas start-hbase.sh (
http://svn.apache.org/repos/asf/hbase/trunk/bin/start-hbase.sh) does have
code to start regionservers. Is it not supposed to be stopped in that way?
hari
On Mon, Nov 8, 2010 at 8:53 PM, Michael Segel <mi...@hotmail.com>wrote:
>
> Hari,
>
> First, which version are you running?
> If you're running Cloudera's CDH3, then you don't want to use the
> start/stop HBase or Hadoop scripts.
>
> The second thing is to check your regionservers file on your HBase Master
> node. If there are no servers listed, it won't work.
>
> HTH
>
> -Mike
>
>
> > Date: Mon, 8 Nov 2010 16:34:04 +0530
> > Subject: Regionserver not shutting down automatically
> > From: hsreekumar@clickable.com
> > To: user@hbase.apache.org
> >
> > Hi,
> >
> > I have seen that the *stop-hbase.sh* script does not
> > execute*hbase-daemons.sh stop regionservers
> > *, although it does stop the master and zookeeper. Is this intentional?
> Why
> > is it? Won't it create any problems if I forget to stop all regionservers
> > and restart hbase before they get killed?
> >
> > Thanks,
> > Hari
>
>
RE: Regionserver not shutting down automatically
Posted by Michael Segel <mi...@hotmail.com>.
Hari,
First, which version are you running?
If you're running Cloudera's CDH3, then you don't want to use the start/stop HBase or Hadoop scripts.
The second thing is to check your regionservers file on your HBase Master node. If there are no servers listed, it won't work.
HTH
-Mike
> Date: Mon, 8 Nov 2010 16:34:04 +0530
> Subject: Regionserver not shutting down automatically
> From: hsreekumar@clickable.com
> To: user@hbase.apache.org
>
> Hi,
>
> I have seen that the *stop-hbase.sh* script does not
> execute*hbase-daemons.sh stop regionservers
> *, although it does stop the master and zookeeper. Is this intentional? Why
> is it? Won't it create any problems if I forget to stop all regionservers
> and restart hbase before they get killed?
>
> Thanks,
> Hari