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Posted to user@hbase.apache.org by Mehmet Simsek <nu...@gmail.com> on 2013/04/19 14:15:58 UTC
Starting Region Server with HBase API
Hi, I can stop region server by using HBaseAdmin class but cannot start.
How can I start region server by using Hbase API?
HRegionServer class has startRegionServer method, Can I use this class?
--
M. Nurettin ŞİMŞEK
Re: Starting Region Server with HBase API
Posted by Ted Yu <yu...@gmail.com>.
Have you used Puppet ?
It can restart region server if region server dies midway.
Cheers
On Apr 20, 2013, at 1:55 AM, Mehmet Simsek <nu...@gmail.com> wrote:
> Hi Ted,
>
> In our cluster,some region server may be stopped because of running jobs.
>
> We want to control region servers every 15 or 30 minutes and if there are dead region servers,these will be started automatically in java application.
>
> We can maybe run this program in unix server.
>
> Thanks.
>
> M.Nurettin Şimşek
>
> On 19 Nis 2013, at 20:30, Ted Yu <yu...@gmail.com> wrote:
>
>> Can you tell us a bit more about your requirement ?
>>
>> Looks like you want to control the cluster size (number of region servers
>> in particular). Once the requirement is outlined, we can think of formal
>> way to address it.
>>
>> Thanks
>>
>> On Fri, Apr 19, 2013 at 9:34 AM, Mehmet Simsek <nu...@gmail.com>wrote:
>>
>>> Security isn't necessary for us.We want to start region server in java
>>> application.
>>>
>>> How can we do?
>>>
>>> Mehmet Şimşek
>>>
>>> On 19 Nis 2013, at 19:08, Ted Yu <yu...@gmail.com> wrote:
>>>
>>>> By java application I assume it is an HBase client.
>>>> Is your HBase cluster secure ?
>>>>
>>>> How you thought about security implication of allowing client app to
>>> start
>>>> region server ?
>>>>
>>>> Cheers
>>>>
>>>> On Fri, Apr 19, 2013 at 7:52 AM, Mehmet Simsek <nurettinsimsek@gmail.com
>>>> wrote:
>>>>
>>>>> Can I use script to start region server in java application starting in
>>>>> windows platform?
>>>
Re: Starting Region Server with HBase API
Posted by Mehmet Simsek <nu...@gmail.com>.
Hi Ted,
In our cluster,some region server may be stopped because of running jobs.
We want to control region servers every 15 or 30 minutes and if there are dead region servers,these will be started automatically in java application.
We can maybe run this program in unix server.
Thanks.
M.Nurettin Şimşek
On 19 Nis 2013, at 20:30, Ted Yu <yu...@gmail.com> wrote:
> Can you tell us a bit more about your requirement ?
>
> Looks like you want to control the cluster size (number of region servers
> in particular). Once the requirement is outlined, we can think of formal
> way to address it.
>
> Thanks
>
> On Fri, Apr 19, 2013 at 9:34 AM, Mehmet Simsek <nu...@gmail.com>wrote:
>
>> Security isn't necessary for us.We want to start region server in java
>> application.
>>
>> How can we do?
>>
>> Mehmet Şimşek
>>
>> On 19 Nis 2013, at 19:08, Ted Yu <yu...@gmail.com> wrote:
>>
>>> By java application I assume it is an HBase client.
>>> Is your HBase cluster secure ?
>>>
>>> How you thought about security implication of allowing client app to
>> start
>>> region server ?
>>>
>>> Cheers
>>>
>>> On Fri, Apr 19, 2013 at 7:52 AM, Mehmet Simsek <nurettinsimsek@gmail.com
>>> wrote:
>>>
>>>> Can I use script to start region server in java application starting in
>>>> windows platform?
>>
Re: Starting Region Server with HBase API
Posted by Ted Yu <yu...@gmail.com>.
Can you tell us a bit more about your requirement ?
Looks like you want to control the cluster size (number of region servers
in particular). Once the requirement is outlined, we can think of formal
way to address it.
Thanks
On Fri, Apr 19, 2013 at 9:34 AM, Mehmet Simsek <nu...@gmail.com>wrote:
> Security isn't necessary for us.We want to start region server in java
> application.
>
> How can we do?
>
> Mehmet Şimşek
>
> On 19 Nis 2013, at 19:08, Ted Yu <yu...@gmail.com> wrote:
>
> > By java application I assume it is an HBase client.
> > Is your HBase cluster secure ?
> >
> > How you thought about security implication of allowing client app to
> start
> > region server ?
> >
> > Cheers
> >
> > On Fri, Apr 19, 2013 at 7:52 AM, Mehmet Simsek <nurettinsimsek@gmail.com
> >wrote:
> >
> >> Can I use script to start region server in java application starting in
> >> windows platform?
> >>
>
Re: Starting Region Server with HBase API
Posted by Mehmet Simsek <nu...@gmail.com>.
Security isn't necessary for us.We want to start region server in java application.
How can we do?
Mehmet Şimşek
On 19 Nis 2013, at 19:08, Ted Yu <yu...@gmail.com> wrote:
> By java application I assume it is an HBase client.
> Is your HBase cluster secure ?
>
> How you thought about security implication of allowing client app to start
> region server ?
>
> Cheers
>
> On Fri, Apr 19, 2013 at 7:52 AM, Mehmet Simsek <nu...@gmail.com>wrote:
>
>> Can I use script to start region server in java application starting in
>> windows platform?
>>
Re: Starting Region Server with HBase API
Posted by Ted Yu <yu...@gmail.com>.
By java application I assume it is an HBase client.
Is your HBase cluster secure ?
How you thought about security implication of allowing client app to start
region server ?
Cheers
On Fri, Apr 19, 2013 at 7:52 AM, Mehmet Simsek <nu...@gmail.com>wrote:
> Can I use script to start region server in java application starting in
> windows platform?
>
Re: Starting Region Server with HBase API
Posted by Mehmet Simsek <nu...@gmail.com>.
Can I use script to start region server in java application starting in
windows platform?
Re: Starting Region Server with HBase API
Posted by Ted Yu <yu...@gmail.com>.
startRegionServer creates a new Thread, wrapping the passed in
HRegionServer.
Can you use script to start region server ?
Cheers
On Fri, Apr 19, 2013 at 5:15 AM, Mehmet Simsek <nu...@gmail.com>wrote:
> Hi, I can stop region server by using HBaseAdmin class but cannot start.
>
> How can I start region server by using Hbase API?
>
>
> HRegionServer class has startRegionServer method, Can I use this class?
> --
> M. Nurettin ŞİMŞEK
>