de to
> achieve transaction
> where needed.
> Since the multiple tables tend to have same row key design as you
> mentioned, region servers carry more regions, increasing load on assignment
> manager / balancer, etc.
>
> Cheers
>
> On Thu, Jun 22, 2017 at 5:44 AM, Alexander
Hi,
A general question regarding column families. It is said in the doc that
HBase doesn't do well with more than 2-3 column families because flushing
and compactions are done on a per region basis which should be addressed in
the future: http://hbase.apache.org/book.html#number.of.cfs
Is it stil
egion size is becoming too large? <--
> This is 100% depends, it depends on your environment, I/O usage, SLAs etc,
> I am not sure if anyone has done documented compaction times based on
> Region sizes. You may have to do some trial and error here.
>
> I hope this helps!
>
>
&g
Hi,
Tuning HBase performance I've found a lot of settings which affect
compaction process (off-peak hours, time between compactions, compaction
ratio, region sizes, etc.). They all seem to be useful and there are
recommendations in the doc saying which values to set. But I found no way
to assess h
ase.rpc.timeout
* hbase.client.operation.timeout
* something else I missed?
On Tue, Oct 25, 2016 at 1:21 PM, Alexander Ilyin
wrote:
> Hi Ted, Stack,
>
> thanks for the answers.
>
> We're not using Phoenix but the server process was running on some
> datanodes. We stopped i
r the 800ms penalty?
> Thanks,
> St.Ack
>
> On Mon, Oct 24, 2016 at 5:44 AM, Alexander Ilyin
> wrote:
>
> > Hi,
> >
> > I'm experiencing some spikes in HBase response time. The problem appeared
> > in one moment: before all the requests used to take 4-3
Hi,
I'm experiencing some spikes in HBase response time. The problem appeared
in one moment: before all the requests used to take 4-30ms to complete and
now some of them (several percent) take as long as 800ms decreasing
significantly an average processing time.
This happens with the requests to
ster reboot)
>
> On Mon, Oct 17, 2016 at 8:26 AM Alexander Ilyin
> wrote:
>
> > Hi,
> >
> > We have a 7-node HBase cluster (version 1.1.2) and we change some of its
> > settings from time to time which requires a restart. The problem is that
> > every time
thing be amiss in your network settings? Seeing phantom datanodes
> could be tripping things up. Are these physical machines or instances in
> the cloud?
>
> On Monday, October 17, 2016, Alexander Ilyin
> wrote:
>
> > Hi,
> >
> > We have a 7-node HBase
Hi,
We have a 7-node HBase cluster (version 1.1.2) and we change some of its
settings from time to time which requires a restart. The problem is that
every time after the restart load balancer reassigns the regions making
data locality low.
To address this issue we tried the settings described he
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