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Posted to user@hbase.apache.org by Pablo Medina <pa...@gmail.com> on 2013/11/28 02:26:58 UTC

Replication metrics with more than one Peer/Slave

Hi all,

Knowing that replication metrics are global at the region server level in
HBase 0.94.13, what is the meaning of a metric like sizeOfLogQueue when
replicating to more than one peer/slave? Is it the queue size reported by
the "last" replication source thread ? does the last thread win ? Can I
have a situation where a replication source thread is hidden by the other
one ?. In general, how can I understand/analyze replication metrics with
more than one peer?

Thanks!

Pablo.

Re: Replication metrics with more than one Peer/Slave

Posted by Pablo Medina <pa...@gmail.com>.

I know that in 0.95 metrics are reported by peer. I want to understand what
is the expected behavior in 0.94.13. Can you share your experience when
looking at the metrics of more than one peer?
El 28/11/2013 19:05, "Asaf Mesika" <as...@gmail.com> escribió:

> I tacked the same problem, and was answerd it was fixed in 0.95
>
> On Thursday, November 28, 2013, Pablo Medina wrote:
>
> > Hi all,
> >
> > Knowing that replication metrics are global at the region server level in
> > HBase 0.94.13, what is the meaning of a metric like sizeOfLogQueue when
> > replicating to more than one peer/slave? Is it the queue size reported by
> > the "last" replication source thread ? does the last thread win ? Can I
> > have a situation where a replication source thread is hidden by the other
> > one ?. In general, how can I understand/analyze replication metrics with
> > more than one peer?
> >
> > Thanks!
> >
> > Pablo.
> >
>

Re: Replication metrics with more than one Peer/Slave

Posted by Asaf Mesika <as...@gmail.com>.

I tacked the same problem, and was answerd it was fixed in 0.95

On Thursday, November 28, 2013, Pablo Medina wrote:

> Hi all,
>
> Knowing that replication metrics are global at the region server level in
> HBase 0.94.13, what is the meaning of a metric like sizeOfLogQueue when
> replicating to more than one peer/slave? Is it the queue size reported by
> the "last" replication source thread ? does the last thread win ? Can I
> have a situation where a replication source thread is hidden by the other
> one ?. In general, how can I understand/analyze replication metrics with
> more than one peer?
>
> Thanks!
>
> Pablo.
>