Re: Does HBase 0.92 Rest client supports coprocessor execution?

[Andrew Purtell <ap...@apache.org>]

You are correct, it is not supported.

I think direct invocation of coprocessors is out of scope of the REST API,
because coprocessorExec is an arbitrary remote method call. That is the
domain of SOAP/WS. There is no WS API for HBase at this time (and none
planned that I know of).

On Thursday, August 30, 2012, anil gupta wrote:

> Hi All,
>
> I am running a HBase 0.92 cluster. I was trying to run the Aggregation
> coprocessor using HBase REST client api. When i ran the code i got the
> following error:
> java.lang.UnsupportedOperationException: coprocessorExec not implemented
>     at
>
> org.apache.hadoop.hbase.rest.client.RemoteHTable.coprocessorExec(RemoteHTable.java:712)
>     at
>
> com.intuit.ihub.hbase.poc.aggregation.client.AggregationClientRest.max(AggregationClientRest.java:101)
>     at
> com.intuit.ihub.hbase.poc.rest.client.RestClient.main(RestClient.java:52)
>
> I also looked into the code and it seems like currently it's not possible
> to run coprocessor with REST client api of HBase 0.92. Right? Is it
> available in HBase0.94 ?
> Sorry, if my question sounds pretty obvious.
>
> --
> Thanks & Regards,
> Anil Gupta
>


-- 
Best regards,

   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)

Re: Does HBase 0.92 Rest client supports coprocessor execution?

[Anil Gupta <an...@gmail.com>]

Thanks for the response, Andrew.

After failure of running CP rest API, I figured out that when the client machine is directly connected to cluster, I can run hbase client code from any machine by providing the hbase conf in classpath. :)


Best Regards,
Anil

On Sep 3, 2012, at 3:19 PM, Andrew Purtell <ap...@apache.org> wrote:

> You are correct, it is not supported.
> 
> I think direct invocation of coprocessors is out of scope of the REST API,
> because coprocessorExec is an arbitrary remote method call. That is the
> domain of SOAP/WS. There is no WS API for HBase at this time (and none
> planned that I know of).
> 
> On Thursday, August 30, 2012, anil gupta wrote:
> 
>> Hi All,
>> 
>> I am running a HBase 0.92 cluster. I was trying to run the Aggregation
>> coprocessor using HBase REST client api. When i ran the code i got the
>> following error:
>> java.lang.UnsupportedOperationException: coprocessorExec not implemented
>>    at
>> 
>> org.apache.hadoop.hbase.rest.client.RemoteHTable.coprocessorExec(RemoteHTable.java:712)
>>    at
>> 
>> com.intuit.ihub.hbase.poc.aggregation.client.AggregationClientRest.max(AggregationClientRest.java:101)
>>    at
>> com.intuit.ihub.hbase.poc.rest.client.RestClient.main(RestClient.java:52)
>> 
>> I also looked into the code and it seems like currently it's not possible
>> to run coprocessor with REST client api of HBase 0.92. Right? Is it
>> available in HBase0.94 ?
>> Sorry, if my question sounds pretty obvious.
>> 
>> --
>> Thanks & Regards,
>> Anil Gupta
>> 
> 
> 
> -- 
> Best regards,
> 
>   - Andy
> 
> Problems worthy of attack prove their worth by hitting back. - Piet Hein
> (via Tom White)