hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From sudhakara st <sudhakara...@gmail.com>
Subject Re: Hbase Locality/table balancing
Date Wed, 08 Mar 2017 09:37:35 GMT
I believe the problem is bring down the cluster is  everyday. On Hbase
start probability of re-assigns regions is more, region
re-assignment/moving region  always effect the data locality.

Regards,
Sudhakara

On Wed, Mar 8, 2017 at 12:59 PM, Anoop John <anoop.hbase@gmail.com> wrote:

> There is one config  "hbase.master.loadbalance.bytable"  using which
> user can say whether the balancing has to be done per table or
> globally balance.  I believe u r using StochasticLoadBalancer only
> which is the default.
>
> The move calls are affecting ur locality?
>
> -Anoop-
>
> On Wed, Mar 8, 2017 at 1:05 AM, Pradheep Shanmugam
> <Pradheep.Shanmugam@infor.com> wrote:
> > Hi,
> >
> > I have a Hbase(1.1.2) cluster with 8 region servers in AWS..I bring down
> the cluster everyday and bring it up again next day.
> >
> > Every day the locality keeps decreasing(95, 80, 70) and does not go up
> even after doing major compaction of all the tables. Why is it so?
> > Also the regions of a particular table are not gettting equally
> distrubuted after the cluster is up..I have to run the hbase move commands
> to move the table regions around..but the locality does not go up even
> after this..
> > But the overall regions are distributed equally across the region
> servers. I guess this is done by the balancer.
> >
> > Thanks,
> > Pradheep
>



-- 

Regards,
...sudhakara

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message