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Posted to user@hbase.apache.org by Oussama Jilal <ji...@gmail.com> on 2015/11/24 12:42:05 UTC

ZooKeeper still running in a decommissioned regionserver

Hello,

I have a running HBase cluster (where HBase_MANAGES_ZK=true) from which I
decommissioned a regionserver. The regionserver shutdown correctly but the
zookeeper is still running on that node, is it safe to just kill the ZK
process ? or there is a command which I am supposed to execute ?

Thank you.

Re: ZooKeeper still running in a decommissioned regionserver

Posted by Oussama Jilal <ji...@gmail.com>.

Hello Samir,

Thank you for your help, I stopped the zookeeper using "hbase-daemon.sh
stop zookeeper", I still have 3 more nodes running zookeeper, and things
are still up.

Thank you.

On Tue, Nov 24, 2015 at 12:15 PM, Samir Ahmic <ah...@gmail.com> wrote:

> Hi Oussama,
>
> What is the value of "hbase.zookeeper.quorum" in your config ? How many
> zookeeper instances you have in your cluster? You can stop zookeeper
> process on server with "hbase-daemon.sh stop zookeeper" command but be
> careful you mast have majority of zk ensemble up in order to zk cluster
> work correctly.
>
> Regards
> Samir
>
> On Tue, Nov 24, 2015 at 12:42 PM, Oussama Jilal <ji...@gmail.com>
> wrote:
>
> > Hello,
> >
> > I have a running HBase cluster (where HBase_MANAGES_ZK=true) from which I
> > decommissioned a regionserver. The regionserver shutdown correctly but
> the
> > zookeeper is still running on that node, is it safe to just kill the ZK
> > process ? or there is a command which I am supposed to execute ?
> >
> > Thank you.
> >
>

Re: ZooKeeper still running in a decommissioned regionserver

Posted by Samir Ahmic <ah...@gmail.com>.

Hi Oussama,

What is the value of "hbase.zookeeper.quorum" in your config ? How many
zookeeper instances you have in your cluster? You can stop zookeeper
process on server with "hbase-daemon.sh stop zookeeper" command but be
careful you mast have majority of zk ensemble up in order to zk cluster
work correctly.

Regards
Samir

On Tue, Nov 24, 2015 at 12:42 PM, Oussama Jilal <ji...@gmail.com>
wrote:

> Hello,
>
> I have a running HBase cluster (where HBase_MANAGES_ZK=true) from which I
> decommissioned a regionserver. The regionserver shutdown correctly but the
> zookeeper is still running on that node, is it safe to just kill the ZK
> process ? or there is a command which I am supposed to execute ?
>
> Thank you.
>