Hello,

I wonder if it's possible to install two different Hbase versions in
the same cluster?

Thanks

Yong

Sure, just make sure you don't cross the configurations and don't put the RS on the same nodes.
Sent from a remote device. Please excuse any typos...

Mike Segel

On Apr 16, 2012, at 6:31 AM, yonghu <[EMAIL PROTECTED]> wrote:

> Hello,
>
> I wonder if it's possible to install two different Hbase versions in
> the same cluster?
>
> Thanks
>
> Yong
>

Yes it should be fine to do if you make appropriate configuration
changes. Mainly the ZK root data directory (if you're sharing the
zk-quorum too), HDFS base root-dir, and all the service ports.

On Mon, Apr 16, 2012 at 5:01 PM, yonghu <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I wonder if it's possible to install two different Hbase versions in
> the same cluster?
>
> Thanks
>
> Yong

--
Harsh J

Mike,

Can you explain why I can't put the RS on the same node?

Thanks!

Yong

On Mon, Apr 16, 2012 at 1:33 PM, Michel Segel <[EMAIL PROTECTED]> wrote:
> Sure, just make sure you don't cross the configurations and don't put the RS on the same nodes.
>
>
> Sent from a remote device. Please excuse any typos...
>
> Mike Segel
>
> On Apr 16, 2012, at 6:31 AM, yonghu <[EMAIL PROTECTED]> wrote:
>
>> Hello,
>>
>> I wonder if it's possible to install two different Hbase versions in
>> the same cluster?
>>
>> Thanks
>>
>> Yong
>>

Well, you could, however you run a greater risk of things breaking because you forgot to change a setting in the configuration file. You would have to change port listeners, location of config files, all sorts of things that you wouldn't have to change if you just segmented the nodes, different zk quorum and hmaster.

I mean the simple answer is sure, why not. But the longer answer is that you need to think more about what you want to do, why you want to do it, and what the least invasive way of doing it.

Sent from a remote device. Please excuse any typos...

Mike Segel

On Apr 16, 2012, at 6:39 AM, yonghu <[EMAIL PROTECTED]> wrote:

> Mike,
>
> Can you explain why I can't put the RS on the same node?
>
> Thanks!
>
> Yong
>
> On Mon, Apr 16, 2012 at 1:33 PM, Michel Segel <[EMAIL PROTECTED]> wrote:
>> Sure, just make sure you don't cross the configurations and don't put the RS on the same nodes.
>>
>>
>> Sent from a remote device. Please excuse any typos...
>>
>> Mike Segel
>>
>> On Apr 16, 2012, at 6:31 AM, yonghu <[EMAIL PROTECTED]> wrote:
>>
>>> Hello,
>>>
>>> I wonder if it's possible to install two different Hbase versions in
>>> the same cluster?
>>>
>>> Thanks
>>>
>>> Yong
>>>
>