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Posted to user@hbase.apache.org by Samar Kumar <Sa...@inmobi.com> on 2013/02/04 13:07:59 UTC
remove dead regions server
Hi Everyone,
I did a "status 'detailed'" and found 3 dead region servers. I was hoping that the dead region servers would go aways after a while but they seem to exist for a long time now. Is there a way for these to be removed without restarting the master.
Using hbase 0.90.4-cdh3u3
Regards,
Samar
________________________________
The information contained in this communication is intended solely for the use of the individual or entity to whom it is addressed and others authorized to receive it. It may contain confidential or legally privileged information. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by responding to this email and then delete it from your system. The firm is neither liable for the proper and complete transmission of the information contained in this communication nor for any delay in its receipt.
Re: remove dead regions server
Posted by samar kumar <sa...@gmail.com>.
Thanks guys, we had to restart the master for another issue an that
cleaned the deadserver list too.
On 05/02/13 9:08 PM, "Bryan Beaudreault" <bb...@hubspot.com> wrote:
>There really should be no issue or slowdown involved with restarting the
>masters. The operation only takes 1-2 seconds and is pretty much
>transparent to clients. We run hundreds of M/R jobs as well as a handful
>of online APIs hitting hbase and have not seen any issue restarting
>masters
>at will whenever we need to.
>
>
>On Tue, Feb 5, 2013 at 4:04 AM, Nicolas Liochon <nk...@gmail.com> wrote:
>
>> Hi,
>>
>> Looking at the code, no.
>>
>> Nicolas
>>
>>
>> On Tue, Feb 5, 2013 at 9:21 AM, samar kumar <samar.opensource@gmail.com
>> >wrote:
>>
>> > Thanks Adrien.
>> > Sure , but is there any other way without stoping the masters.
>>Anything
>> > like cleaning the zk. Is there a time-out which cleans the dead rs or
>>max
>> > count .
>> > Regards,
>> > Samar
>> >
>> > On 05/02/13 12:38 AM, "Adrien Mogenet" <ad...@gmail.com>
>>wrote:
>> >
>> > >The easiest way is to restart your HBaseMaster. The next active
>>master
>> > >will
>> > >not register the dead RS.
>> > >
>> > >
>> > >On Mon, Feb 4, 2013 at 1:07 PM, Samar Kumar <Sa...@inmobi.com>
>> > >wrote:
>> > >
>> > >> Hi Everyone,
>> > >> I did a "status 'detailed'" and found 3 dead region servers. I
>>was
>> > >> hoping that the dead region servers would go aways after a while
>>but
>> > >>they
>> > >> seem to exist for a long time now. Is there a way for these to be
>> > >>removed
>> > >> without restarting the master.
>> > >> Using hbase 0.90.4-cdh3u3
>> > >> Regards,
>> > >> Samar
>> > >>
>> > >> ________________________________
>> > >>
>> > >> The information contained in this communication is intended solely
>>for
>> > >>the
>> > >> use of the individual or entity to whom it is addressed and others
>> > >> authorized to receive it. It may contain confidential or legally
>> > >>privileged
>> > >> information. If you are not the intended recipient you are hereby
>> > >>notified
>> > >> that any disclosure, copying, distribution or taking any action in
>> > >>reliance
>> > >> on the contents of this information is strictly prohibited and may
>>be
>> > >> unlawful. If you have received this communication in error, please
>> > >>notify
>> > >> us immediately by responding to this email and then delete it from
>> your
>> > >> system. The firm is neither liable for the proper and complete
>> > >>transmission
>> > >> of the information contained in this communication nor for any
>>delay
>> in
>> > >>its
>> > >> receipt.
>> > >>
>> > >
>> > >
>> > >
>> > >--
>> > >Adrien Mogenet
>> > >06.59.16.64.22
>> > >http://www.mogenet.me
>> >
>> >
>> >
>>
Re: remove dead regions server
Posted by Bryan Beaudreault <bb...@hubspot.com>.
There really should be no issue or slowdown involved with restarting the
masters. The operation only takes 1-2 seconds and is pretty much
transparent to clients. We run hundreds of M/R jobs as well as a handful
of online APIs hitting hbase and have not seen any issue restarting masters
at will whenever we need to.
On Tue, Feb 5, 2013 at 4:04 AM, Nicolas Liochon <nk...@gmail.com> wrote:
> Hi,
>
> Looking at the code, no.
>
> Nicolas
>
>
> On Tue, Feb 5, 2013 at 9:21 AM, samar kumar <samar.opensource@gmail.com
> >wrote:
>
> > Thanks Adrien.
> > Sure , but is there any other way without stoping the masters. Anything
> > like cleaning the zk. Is there a time-out which cleans the dead rs or max
> > count .
> > Regards,
> > Samar
> >
> > On 05/02/13 12:38 AM, "Adrien Mogenet" <ad...@gmail.com> wrote:
> >
> > >The easiest way is to restart your HBaseMaster. The next active master
> > >will
> > >not register the dead RS.
> > >
> > >
> > >On Mon, Feb 4, 2013 at 1:07 PM, Samar Kumar <Sa...@inmobi.com>
> > >wrote:
> > >
> > >> Hi Everyone,
> > >> I did a "status 'detailed'" and found 3 dead region servers. I was
> > >> hoping that the dead region servers would go aways after a while but
> > >>they
> > >> seem to exist for a long time now. Is there a way for these to be
> > >>removed
> > >> without restarting the master.
> > >> Using hbase 0.90.4-cdh3u3
> > >> Regards,
> > >> Samar
> > >>
> > >> ________________________________
> > >>
> > >> The information contained in this communication is intended solely for
> > >>the
> > >> use of the individual or entity to whom it is addressed and others
> > >> authorized to receive it. It may contain confidential or legally
> > >>privileged
> > >> information. If you are not the intended recipient you are hereby
> > >>notified
> > >> that any disclosure, copying, distribution or taking any action in
> > >>reliance
> > >> on the contents of this information is strictly prohibited and may be
> > >> unlawful. If you have received this communication in error, please
> > >>notify
> > >> us immediately by responding to this email and then delete it from
> your
> > >> system. The firm is neither liable for the proper and complete
> > >>transmission
> > >> of the information contained in this communication nor for any delay
> in
> > >>its
> > >> receipt.
> > >>
> > >
> > >
> > >
> > >--
> > >Adrien Mogenet
> > >06.59.16.64.22
> > >http://www.mogenet.me
> >
> >
> >
>
Re: remove dead regions server
Posted by Nicolas Liochon <nk...@gmail.com>.
Hi,
Looking at the code, no.
Nicolas
On Tue, Feb 5, 2013 at 9:21 AM, samar kumar <sa...@gmail.com>wrote:
> Thanks Adrien.
> Sure , but is there any other way without stoping the masters. Anything
> like cleaning the zk. Is there a time-out which cleans the dead rs or max
> count .
> Regards,
> Samar
>
> On 05/02/13 12:38 AM, "Adrien Mogenet" <ad...@gmail.com> wrote:
>
> >The easiest way is to restart your HBaseMaster. The next active master
> >will
> >not register the dead RS.
> >
> >
> >On Mon, Feb 4, 2013 at 1:07 PM, Samar Kumar <Sa...@inmobi.com>
> >wrote:
> >
> >> Hi Everyone,
> >> I did a "status 'detailed'" and found 3 dead region servers. I was
> >> hoping that the dead region servers would go aways after a while but
> >>they
> >> seem to exist for a long time now. Is there a way for these to be
> >>removed
> >> without restarting the master.
> >> Using hbase 0.90.4-cdh3u3
> >> Regards,
> >> Samar
> >>
> >> ________________________________
> >>
> >> The information contained in this communication is intended solely for
> >>the
> >> use of the individual or entity to whom it is addressed and others
> >> authorized to receive it. It may contain confidential or legally
> >>privileged
> >> information. If you are not the intended recipient you are hereby
> >>notified
> >> that any disclosure, copying, distribution or taking any action in
> >>reliance
> >> on the contents of this information is strictly prohibited and may be
> >> unlawful. If you have received this communication in error, please
> >>notify
> >> us immediately by responding to this email and then delete it from your
> >> system. The firm is neither liable for the proper and complete
> >>transmission
> >> of the information contained in this communication nor for any delay in
> >>its
> >> receipt.
> >>
> >
> >
> >
> >--
> >Adrien Mogenet
> >06.59.16.64.22
> >http://www.mogenet.me
>
>
>
Re: remove dead regions server
Posted by samar kumar <sa...@gmail.com>.
Thanks Adrien.
Sure , but is there any other way without stoping the masters. Anything
like cleaning the zk. Is there a time-out which cleans the dead rs or max
count .
Regards,
Samar
On 05/02/13 12:38 AM, "Adrien Mogenet" <ad...@gmail.com> wrote:
>The easiest way is to restart your HBaseMaster. The next active master
>will
>not register the dead RS.
>
>
>On Mon, Feb 4, 2013 at 1:07 PM, Samar Kumar <Sa...@inmobi.com>
>wrote:
>
>> Hi Everyone,
>> I did a "status 'detailed'" and found 3 dead region servers. I was
>> hoping that the dead region servers would go aways after a while but
>>they
>> seem to exist for a long time now. Is there a way for these to be
>>removed
>> without restarting the master.
>> Using hbase 0.90.4-cdh3u3
>> Regards,
>> Samar
>>
>> ________________________________
>>
>> The information contained in this communication is intended solely for
>>the
>> use of the individual or entity to whom it is addressed and others
>> authorized to receive it. It may contain confidential or legally
>>privileged
>> information. If you are not the intended recipient you are hereby
>>notified
>> that any disclosure, copying, distribution or taking any action in
>>reliance
>> on the contents of this information is strictly prohibited and may be
>> unlawful. If you have received this communication in error, please
>>notify
>> us immediately by responding to this email and then delete it from your
>> system. The firm is neither liable for the proper and complete
>>transmission
>> of the information contained in this communication nor for any delay in
>>its
>> receipt.
>>
>
>
>
>--
>Adrien Mogenet
>06.59.16.64.22
>http://www.mogenet.me
Re: remove dead regions server
Posted by Adrien Mogenet <ad...@gmail.com>.
The easiest way is to restart your HBaseMaster. The next active master will
not register the dead RS.
On Mon, Feb 4, 2013 at 1:07 PM, Samar Kumar <Sa...@inmobi.com> wrote:
> Hi Everyone,
> I did a "status 'detailed'" and found 3 dead region servers. I was
> hoping that the dead region servers would go aways after a while but they
> seem to exist for a long time now. Is there a way for these to be removed
> without restarting the master.
> Using hbase 0.90.4-cdh3u3
> Regards,
> Samar
>
> ________________________________
>
> The information contained in this communication is intended solely for the
> use of the individual or entity to whom it is addressed and others
> authorized to receive it. It may contain confidential or legally privileged
> information. If you are not the intended recipient you are hereby notified
> that any disclosure, copying, distribution or taking any action in reliance
> on the contents of this information is strictly prohibited and may be
> unlawful. If you have received this communication in error, please notify
> us immediately by responding to this email and then delete it from your
> system. The firm is neither liable for the proper and complete transmission
> of the information contained in this communication nor for any delay in its
> receipt.
>
--
Adrien Mogenet
06.59.16.64.22
http://www.mogenet.me