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From AnandaVelMurugan Chandra Mohan <ananthu2...@gmail.com>
Subject Re: Stopping Hbase
Date Fri, 22 Jun 2012 07:24:46 GMT
Hi Lars,

Thanks for detailed response. I will check this.

On Fri, Jun 22, 2012 at 12:49 PM, Lars George <lars.george@gmail.com> wrote:

> Hi Anand,
>
> The stop-hbase.sh needs two things a) the list of hostnames in the
> conf/regionservers file and b) ssh access to all machines. The script then
> iterates over that list and sends the "hbase regionserver stop" command to
> each machine using ssh.
>
> In the past we had a shell command that could shutdown the cluster, but
> since there was an issue that "help shutdown" was actually running both
> command and stop the cluster, it was removed (
> https://issues.apache.org/jira/browse/HBASE-3249). You could add it back
> into your JRuby code - but that would mean patching your HBase instance.
> Another option is to write this as a separate JRuby script like so:
>
>
> include Java
> import org.apache.hadoop.hbase.HBaseConfiguration
> import org.apache.hadoop.hbase.client.HBaseAdmin
>
> puts 'Issuing shutdown command now (y|N)? '
> userin = gets.chomp
> if userin == 'Y' or userin == 'y'
>  conf = HBaseConfiguration.create()
>  admin = HBaseAdmin.new(conf)
>  admin.shutdown()
>  puts 'Shutdown issued, command runs asynchronously.'
> else
>  puts 'Aborting shutdown.'
> end
>
> puts 'Done.'
>
>
> Save this in a file called shutdown_cluster.rb and invoke it from the
> machine you have access to like so:
>
> $ bin/hbase org.jruby.Main shutdown_cluster.rb
>
> and follow the prompts.
>
> Godspeed :)
>
> Cheers,
> Lars
>
>
> On Jun 22, 2012, at 8:16 AM, AnandaVelMurugan Chandra Mohan wrote:
>
> > Hi,
> >
> > Can I stop Hbase from any node in the cluster? We have a three node
> cluster
> > and owner of two nodes is out of office. I have access to only one node
> > now. Zookeeper is running in one of the two non-accessible nodes. Can I
> run
> > <HBASE_HOME>/bin/stop-hbase.h in my node?. Will HBase stop with no
> issues?
> > Please suggest. Thanks!!
> >
> > --
> > Regards,
> > Anand
>
>


-- 
Regards,
Anand

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