Re: Coprocessor slow down problem!

[Anoop John <an...@gmail.com>]

Ram,  This issue was for prePut()..    postPut() was fine only...
Can you take a look that at the time of slow put what the corresponding RS
threads doing.
May be can get some clues from that.

-Anoop-


On Fri, Nov 30, 2012 at 2:04 PM, ramkrishna vasudevan <
ramkrishna.s.vasudevan@gmail.com> wrote:

> Hi
>
> Pls check if this issue is similar to HBASE-5897.  It is fixed in 0.92.2 as
> i see from the fix versions.
>
> Regards
> Ram
>
> On Fri, Nov 30, 2012 at 1:13 PM, yonghu <yo...@gmail.com> wrote:
>
> > Dear all,
> >
> > I have two tables, named test and tracking. For every put in the test
> > table, I defined a postPut trigger to insert the same data into
> > tracking table. I tested about 50 thousands tuples. The strange thing
> > for me is for the first 20 thousands tuples, the speed is very fast (I
> > made 5 times tests, every time is the same). And then, after that, the
> > insertion to tracking table will be every slow, probably 2-3 rows/sec.
> > My hbase version is 0.92.0. Can anyone tell me why and how I can
> > increase the speed?
> >
> > regards!
> >
> > Yong
> >
>

Re: Coprocessor slow down problem!

[Anoop John <an...@gmail.com>]

Hi
         You can take thread dumps?

-Anoop-

On Mon, Dec 3, 2012 at 1:29 AM, yonghu <yo...@gmail.com> wrote:

> Hi Anoop,
>
> Can you give me a more detailed information about how can I take a
> look at RS threads doing?
>
> Thanks!
>
> Yong
>
> On Sat, Dec 1, 2012 at 9:23 AM, ramkrishna vasudevan
> <ra...@gmail.com> wrote:
> > Ok...fine...Ya seeing what is happening in postPut should give an idea.
> >
> > Regards
> > Ram
> >
> > On Sat, Dec 1, 2012 at 1:52 PM, Anoop John <an...@gmail.com>
> wrote:
> >
> >> Ram,  This issue was for prePut()..    postPut() was fine only...
> >> Can you take a look that at the time of slow put what the corresponding
> RS
> >> threads doing.
> >> May be can get some clues from that.
> >>
> >> -Anoop-
> >>
> >>
> >> On Fri, Nov 30, 2012 at 2:04 PM, ramkrishna vasudevan <
> >> ramkrishna.s.vasudevan@gmail.com> wrote:
> >>
> >> > Hi
> >> >
> >> > Pls check if this issue is similar to HBASE-5897.  It is fixed in
> 0.92.2
> >> as
> >> > i see from the fix versions.
> >> >
> >> > Regards
> >> > Ram
> >> >
> >> > On Fri, Nov 30, 2012 at 1:13 PM, yonghu <yo...@gmail.com>
> wrote:
> >> >
> >> > > Dear all,
> >> > >
> >> > > I have two tables, named test and tracking. For every put in the
> test
> >> > > table, I defined a postPut trigger to insert the same data into
> >> > > tracking table. I tested about 50 thousands tuples. The strange
> thing
> >> > > for me is for the first 20 thousands tuples, the speed is very fast
> (I
> >> > > made 5 times tests, every time is the same). And then, after that,
> the
> >> > > insertion to tracking table will be every slow, probably 2-3
> rows/sec.
> >> > > My hbase version is 0.92.0. Can anyone tell me why and how I can
> >> > > increase the speed?
> >> > >
> >> > > regards!
> >> > >
> >> > > Yong
> >> > >
> >> >
> >>
>

Re: Coprocessor slow down problem!

[yonghu <yo...@gmail.com>]

Hi Anoop,

Can you give me a more detailed information about how can I take a
look at RS threads doing?

Thanks!

Yong

On Sat, Dec 1, 2012 at 9:23 AM, ramkrishna vasudevan
<ra...@gmail.com> wrote:
> Ok...fine...Ya seeing what is happening in postPut should give an idea.
>
> Regards
> Ram
>
> On Sat, Dec 1, 2012 at 1:52 PM, Anoop John <an...@gmail.com> wrote:
>
>> Ram,  This issue was for prePut()..    postPut() was fine only...
>> Can you take a look that at the time of slow put what the corresponding RS
>> threads doing.
>> May be can get some clues from that.
>>
>> -Anoop-
>>
>>
>> On Fri, Nov 30, 2012 at 2:04 PM, ramkrishna vasudevan <
>> ramkrishna.s.vasudevan@gmail.com> wrote:
>>
>> > Hi
>> >
>> > Pls check if this issue is similar to HBASE-5897.  It is fixed in 0.92.2
>> as
>> > i see from the fix versions.
>> >
>> > Regards
>> > Ram
>> >
>> > On Fri, Nov 30, 2012 at 1:13 PM, yonghu <yo...@gmail.com> wrote:
>> >
>> > > Dear all,
>> > >
>> > > I have two tables, named test and tracking. For every put in the test
>> > > table, I defined a postPut trigger to insert the same data into
>> > > tracking table. I tested about 50 thousands tuples. The strange thing
>> > > for me is for the first 20 thousands tuples, the speed is very fast (I
>> > > made 5 times tests, every time is the same). And then, after that, the
>> > > insertion to tracking table will be every slow, probably 2-3 rows/sec.
>> > > My hbase version is 0.92.0. Can anyone tell me why and how I can
>> > > increase the speed?
>> > >
>> > > regards!
>> > >
>> > > Yong
>> > >
>> >
>>

Re: Coprocessor slow down problem!

[ramkrishna vasudevan <ra...@gmail.com>]

Ok...fine...Ya seeing what is happening in postPut should give an idea.

Regards
Ram

On Sat, Dec 1, 2012 at 1:52 PM, Anoop John <an...@gmail.com> wrote:

> Ram,  This issue was for prePut()..    postPut() was fine only...
> Can you take a look that at the time of slow put what the corresponding RS
> threads doing.
> May be can get some clues from that.
>
> -Anoop-
>
>
> On Fri, Nov 30, 2012 at 2:04 PM, ramkrishna vasudevan <
> ramkrishna.s.vasudevan@gmail.com> wrote:
>
> > Hi
> >
> > Pls check if this issue is similar to HBASE-5897.  It is fixed in 0.92.2
> as
> > i see from the fix versions.
> >
> > Regards
> > Ram
> >
> > On Fri, Nov 30, 2012 at 1:13 PM, yonghu <yo...@gmail.com> wrote:
> >
> > > Dear all,
> > >
> > > I have two tables, named test and tracking. For every put in the test
> > > table, I defined a postPut trigger to insert the same data into
> > > tracking table. I tested about 50 thousands tuples. The strange thing
> > > for me is for the first 20 thousands tuples, the speed is very fast (I
> > > made 5 times tests, every time is the same). And then, after that, the
> > > insertion to tracking table will be every slow, probably 2-3 rows/sec.
> > > My hbase version is 0.92.0. Can anyone tell me why and how I can
> > > increase the speed?
> > >
> > > regards!
> > >
> > > Yong
> > >
> >
>