There is a HTablePool class in org.apache.hadoop.hbase.client package. I was
wondering is there any performance advantages/speedup in using the pool
instead of HTable?

Thank you

On Tue, Mar 1, 2011 at 8:47 AM, Weishung Chung <[EMAIL PROTECTED]> wrote:
> There is a HTablePool class in org.apache.hadoop.hbase.client package. I was
> wondering is there any performance advantages/speedup in using the pool
> instead of HTable?
>

Not that I know of.  The Pool is of HTable instances.
St.Ack

I assume your question is for HBase 0.90.x

All HTable instances used in HTablePool share the same Configuration, and
this is still one zookeeper client only.

Reducing zookeeper connections has performance advantage.

On Tue, Mar 1, 2011 at 8:47 AM, Weishung Chung <[EMAIL PROTECTED]> wrote:

> There is a HTablePool class in org.apache.hadoop.hbase.client package. I
> was
> wondering is there any performance advantages/speedup in using the pool
> instead of HTable?
>
> Thank you
>

Stack: thanks
Ted: I am using HBase 0.20, I have yet to check out 0.90.0

On Tue, Mar 1, 2011 at 11:49 AM, Ted Yu <[EMAIL PROTECTED]> wrote:

> I assume your question is for HBase 0.90.x
>
> All HTable instances used in HTablePool share the same Configuration, and
> this is still one zookeeper client only.
>
> Reducing zookeeper connections has performance advantage.
>
> On Tue, Mar 1, 2011 at 8:47 AM, Weishung Chung <[EMAIL PROTECTED]> wrote:
>
> > There is a HTablePool class in org.apache.hadoop.hbase.client package. I
> > was
> > wondering is there any performance advantages/speedup in using the pool
> > instead of HTable?
> >
> > Thank you
> >
>

I checked out 0.90 and now I see the difference :) Thanks.

On Tue, Mar 1, 2011 at 12:30 PM, Weishung Chung <[EMAIL PROTECTED]> wrote:

> Stack: thanks
> Ted: I am using HBase 0.20, I have yet to check out 0.90.0
>
>
> On Tue, Mar 1, 2011 at 11:49 AM, Ted Yu <[EMAIL PROTECTED]> wrote:
>
>> I assume your question is for HBase 0.90.x
>>
>> All HTable instances used in HTablePool share the same Configuration, and
>> this is still one zookeeper client only.
>>
>> Reducing zookeeper connections has performance advantage.
>>
>> On Tue, Mar 1, 2011 at 8:47 AM, Weishung Chung <[EMAIL PROTECTED]>
>> wrote:
>>
>> > There is a HTablePool class in org.apache.hadoop.hbase.client package. I
>> > was
>> > wondering is there any performance advantages/speedup in using the pool
>> > instead of HTable?
>> >
>> > Thank you
>> >
>>
>
>

Dear all,

I want to understand when to use HTable, HTablePool and HtableAdmin in Java API ?

I tried to read Hbase book, but I got confused.. So any help please?

How to insert data using Put in a HTablePool instance..?