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Posted to user@hbase.apache.org by J Mohamed Zahoor <jm...@gmail.com> on 2012/09/22 09:56:44 UTC
DoubleColumnInterpretor for my coprocessor
Hi
I am trying out a implementation of DoubleColumnInterpretor on the lines of LongColumnInterpretor.
Do i have to write the "readFields" and "write" methods?
./Zahoor
Re: DoubleColumnInterpretor for my coprocessor
Posted by J Mohamed Zahoor <jm...@gmail.com>.
After some dig up. it was some goof up with the jar file i loaded..
It works in both the case flawlessly now.
./Zahoor
On 26-Sep-2012, at 3:35 PM, Julian Wissmann <ju...@sdace.de> wrote:
> DoubleColumnInterpreter
Re: DoubleColumnInterpretor for my coprocessor
Posted by Julian Wissmann <ju...@sdace.de>.
Hi, can you give some more information on this?
What did you put into the jar file? Just DoubleColumnInterpreter, or also
an AgregateImplementation?
What exactly did you put in hbase-site.xml?
Julian
2012/9/22 J Mohamed Zahoor <jm...@gmail.com>
> Ok. I tried two things.
>
> 1) Loading the coproc HTD and loading the jar from hdfs
> 2) Loading the cop roc as system coproc (by setting in hbase-site.xml)
> and loading the jar from "lib" dir of HBase.
>
>
> The first approach was not working initially.
> When it was not working, the region server log showed that the coproc was
> properly loaded after i enable the table.
>
> Now after some reboot, both cases work now.
>
>
> ./Zahoor
>
> On 22-Sep-2012, at 2:51 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
>
> > Hi
> >
> > I went through the "BigDecimalColumnInterpretor" mail thread.
> > It looks like HBaseObjectWritable understands "Double" unlike BigDecimal
> in the above case.
> >
> > Digging further.
> > If anyone else has a clue.. let me know.
> >
> >
> > ./Zahoor
> >
> >
> > On 22-Sep-2012, at 1:38 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
> >
> >>
> >> The reason was than i am getting a exception like
> >>
> >> http://pastebin.com/PmFrmPNy
> >>
> >> when i exec the coprocessor.
> >>
> >> ./Zahoor
> >>
> >>
> >> On 22-Sep-2012, at 1:26 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
> >>
> >>> Hi
> >>>
> >>> I am trying out a implementation of DoubleColumnInterpretor on the
> lines of LongColumnInterpretor.
> >>> Do i have to write the "readFields" and "write" methods?
> >>>
> >>> ./Zahoor
> >>
> >
>
>
Re: DoubleColumnInterpretor for my coprocessor
Posted by J Mohamed Zahoor <jm...@gmail.com>.
Ok. I tried two things.
1) Loading the coproc HTD and loading the jar from hdfs
2) Loading the cop roc as system coproc (by setting in hbase-site.xml) and loading the jar from "lib" dir of HBase.
The first approach was not working initially.
When it was not working, the region server log showed that the coproc was properly loaded after i enable the table.
Now after some reboot, both cases work now.
./Zahoor
On 22-Sep-2012, at 2:51 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
> Hi
>
> I went through the "BigDecimalColumnInterpretor" mail thread.
> It looks like HBaseObjectWritable understands "Double" unlike BigDecimal in the above case.
>
> Digging further.
> If anyone else has a clue.. let me know.
>
>
> ./Zahoor
>
>
> On 22-Sep-2012, at 1:38 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
>
>>
>> The reason was than i am getting a exception like
>>
>> http://pastebin.com/PmFrmPNy
>>
>> when i exec the coprocessor.
>>
>> ./Zahoor
>>
>>
>> On 22-Sep-2012, at 1:26 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
>>
>>> Hi
>>>
>>> I am trying out a implementation of DoubleColumnInterpretor on the lines of LongColumnInterpretor.
>>> Do i have to write the "readFields" and "write" methods?
>>>
>>> ./Zahoor
>>
>
Re: DoubleColumnInterpretor for my coprocessor
Posted by J Mohamed Zahoor <jm...@gmail.com>.
Hi
I went through the "BigDecimalColumnInterpretor" mail thread.
It looks like HBaseObjectWritable understands "Double" unlike BigDecimal in the above case.
Digging further.
If anyone else has a clue.. let me know.
./Zahoor
On 22-Sep-2012, at 1:38 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
>
> The reason was than i am getting a exception like
>
> http://pastebin.com/PmFrmPNy
>
> when i exec the coprocessor.
>
> ./Zahoor
>
>
> On 22-Sep-2012, at 1:26 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
>
>> Hi
>>
>> I am trying out a implementation of DoubleColumnInterpretor on the lines of LongColumnInterpretor.
>> Do i have to write the "readFields" and "write" methods?
>>
>> ./Zahoor
>
Re: DoubleColumnInterpretor for my coprocessor
Posted by J Mohamed Zahoor <jm...@gmail.com>.
The reason was than i am getting a exception like
http://pastebin.com/PmFrmPNy
when i exec the coprocessor.
./Zahoor
On 22-Sep-2012, at 1:26 PM, J Mohamed Zahoor <jm...@gmail.com> wrote:
> Hi
>
> I am trying out a implementation of DoubleColumnInterpretor on the lines of LongColumnInterpretor.
> Do i have to write the "readFields" and "write" methods?
>
> ./Zahoor