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Posted to user@hbase.apache.org by Geoff Hendrey <gh...@decarta.com> on 2011/03/22 20:43:30 UTC
auto-restart regionservers
Is there a way in which regionservers can be made to automatically
restart when they crash/shutdown. We see several shutdowns every
day...just wondering if there is any mode in which the daemons can
"autorestart". BTW, I'd be happy to pursue the *cause* of the
crash/shutdown, but it just seems to be a fact of life when you are
running 10 regionservers and generating TB of data into HBase.
-g
Re: auto-restart regionservers
Posted by Jean-Daniel Cryans <jd...@apache.org>.
My 100 region servers run happily almost all the time, so I think you
should definitely investigate!
We preferred to leave the restart to your favorite cluster management
tool, no need to reinvent the wheel.
J-D
On Tue, Mar 22, 2011 at 12:43 PM, Geoff Hendrey <gh...@decarta.com> wrote:
> Is there a way in which regionservers can be made to automatically
> restart when they crash/shutdown. We see several shutdowns every
> day...just wondering if there is any mode in which the daemons can
> "autorestart". BTW, I'd be happy to pursue the *cause* of the
> crash/shutdown, but it just seems to be a fact of life when you are
> running 10 regionservers and generating TB of data into HBase.
>
>
>
> -g
>
>
Re: auto-restart regionservers
Posted by Amandeep Khurana <am...@gmail.com>.
Geoff,
In general it's not advisable to simply auto-restart regionservers without digging into the root cause. We had a case where we were doing that and the real problem got masked. Debugging it later took a lot more effort than it would have taken had we looked at it earlier on.
-Amandeep
On Mar 22, 2011, at 12:43 PM, Geoff Hendrey wrote:
> Is there a way in which regionservers can be made to automatically
> restart when they crash/shutdown. We see several shutdowns every
> day...just wondering if there is any mode in which the daemons can
> "autorestart". BTW, I'd be happy to pursue the *cause* of the
> crash/shutdown, but it just seems to be a fact of life when you are
> running 10 regionservers and generating TB of data into HBase.
>
>
>
> -g
>
Re: auto-restart regionservers
Posted by Stack <st...@duboce.net>.
Geoff:
Tell us more. Hardware, sizings, configs., versions, type of
failures. How many TBs? How many regions?
Thanks,
St.Ack
On Tue, Mar 22, 2011 at 12:43 PM, Geoff Hendrey <gh...@decarta.com> wrote:
> Is there a way in which regionservers can be made to automatically
> restart when they crash/shutdown. We see several shutdowns every
> day...just wondering if there is any mode in which the daemons can
> "autorestart". BTW, I'd be happy to pursue the *cause* of the
> crash/shutdown, but it just seems to be a fact of life when you are
> running 10 regionservers and generating TB of data into HBase.
>
>
>
> -g
>
>