Are clients local to slave DC able to read data from HBase slave when
replicating data from one DC to remote DC? If not then is there a way to
design such a thing where clients are able to actively read/write from both
DCs?

On Fri, Aug 17, 2012 at 5:36 PM, Mohit Anchlia <[EMAIL PROTECTED]> wrote:
> Are clients local to slave DC able to read data from HBase slave when
> replicating data from one DC to remote DC?

Yes.

> If not then is there a way to
> design such a thing where clients are able to actively read/write from both
> DCs?

You could do this too.  Depends on your zk config (ensemble and where
you home the client in the ensemble).

St.Ack

On Sat, Aug 18, 2012 at 12:35 PM, Stack <[EMAIL PROTECTED]> wrote:

> On Fri, Aug 17, 2012 at 5:36 PM, Mohit Anchlia <[EMAIL PROTECTED]>
> wrote:
> > Are clients local to slave DC able to read data from HBase slave when
> > replicating data from one DC to remote DC?
>
> Yes.
>
> Is it also possible to setup bi-directional replication? In other words is
it possible to write to the same table to both HBase instances locally in
each DC and still be able to replicate between them?
> If not then is there a way to
> design such a thing where clients are able to actively read/write from
both
> DCs?

You could do this too.  Depends on your zk config (ensemble and where
> you home the client in the ensemble).
>
> St.Ack
>

On Sat, Aug 18, 2012 at 1:30 PM, Mohit Anchlia <[EMAIL PROTECTED]> wrote:
> Is it also possible to setup bi-directional replication? In other words is
> it possible to write to the same table to both HBase instances locally in
> each DC and still be able to replicate between them?

Only starting with 0.92.0

J-D

On Mon, Aug 20, 2012 at 3:06 PM, Jean-Daniel Cryans <[EMAIL PROTECTED]>wrote:

> On Sat, Aug 18, 2012 at 1:30 PM, Mohit Anchlia <[EMAIL PROTECTED]>
> wrote:
> > Is it also possible to setup bi-directional replication? In other words
> is
> > it possible to write to the same table to both HBase instances locally in
> > each DC and still be able to replicate between them?
>
> Only starting with 0.92.0
Thanks! could you please point me to relevant docs? On the replication page
all I see is Master-Slave configuration and I don't see Master-Master
configuration.

>
> J-D
>

It's not different, treat each cluster as a slave to the other.

J-D

On Mon, Aug 20, 2012 at 4:06 PM, Mohit Anchlia <[EMAIL PROTECTED]> wrote:
> On Mon, Aug 20, 2012 at 3:06 PM, Jean-Daniel Cryans <[EMAIL PROTECTED]>wrote:
>
>> On Sat, Aug 18, 2012 at 1:30 PM, Mohit Anchlia <[EMAIL PROTECTED]>
>> wrote:
>> > Is it also possible to setup bi-directional replication? In other words
>> is
>> > it possible to write to the same table to both HBase instances locally in
>> > each DC and still be able to replicate between them?
>>
>> Only starting with 0.92.0
>
>
> Thanks! could you please point me to relevant docs? On the replication page
> all I see is Master-Slave configuration and I don't see Master-Master
> configuration.
>
>>
>> J-D
>>

Reading through HBASE-2195/HBASE-4517 might provide some clues.
Some doc is available here: http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/replication/package-summary.html
-- Lars

________________________________
 From: Mohit Anchlia <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Monday, August 20, 2012 4:06 PM
Subject: Re: HBase replication
 
On Mon, Aug 20, 2012 at 3:06 PM, Jean-Daniel Cryans <[EMAIL PROTECTED]>wrote:

> On Sat, Aug 18, 2012 at 1:30 PM, Mohit Anchlia <[EMAIL PROTECTED]>
> wrote:
> > Is it also possible to setup bi-directional replication? In other words
> is
> > it possible to write to the same table to both HBase instances locally in
> > each DC and still be able to replicate between them?
>
> Only starting with 0.92.0
Thanks! could you please point me to relevant docs? On the replication page
all I see is Master-Slave configuration and I don't see Master-Master
configuration.

>
> J-D
>