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From Cheyenne Forbes <cheyenne.osanu.for...@gmail.com>
Subject Re: How can I "use" a hbase co-processor from a User Defined Function?
Date Wed, 19 Apr 2017 15:53:31 GMT
I'd still need " *HRegion MyVar; ", *because I'd still need the name of the
region where the row of the id passed to the UDF is located and the value
returned my* "getFilesystem()" *of* "**HRegion", *what do you recommend
that I do?

Regards,

Cheyenne O. Forbes



On Tue, Apr 18, 2017 at 6:27 PM, Sergey Soldatov <sergeysoldatov@gmail.com>
wrote:

> I mean you need to modify Phoenix code itself to properly support such
> kind of features.
>
> Thanks,
> Sergey
>
> On Tue, Apr 18, 2017 at 3:52 PM, Cheyenne Forbes <
> cheyenne.osanu.forbes@gmail.com> wrote:
>
>> Could you explain a little more what you mean by that?
>>
>> Regards,
>>
>> Cheyenne O. Forbes
>>
>>
>> On Tue, Apr 18, 2017 at 4:36 PM, Sergey Soldatov <
>> sergeysoldatov@gmail.com> wrote:
>>
>>> I may be wrong, but you have chosen wrong approach. Such kind of
>>> integration need to be (should be) done on the Phoenix layer in the way
>>> like global/local indexes are implemented.
>>>
>>> Thanks,
>>> Sergey
>>>
>>> On Tue, Apr 18, 2017 at 12:34 PM, Cheyenne Forbes <
>>> cheyenne.osanu.forbes@gmail.com> wrote:
>>>
>>>> I am creating a plugin that uses Lucene to index text fields and I need
>>>> to access *getConf()* and *getFilesystem()* of *HRegion, *the Lucene
>>>> indexes are split with the regions so I need  " *HRegion MyVar; ", *I
>>>> am positive the UDF will run on the region server and not the client*.*
>>>>
>>>> Regards,
>>>>
>>>> Cheyenne O. Forbes
>>>>
>>>>
>>>> On Tue, Apr 18, 2017 at 1:22 PM, James Taylor <jamestaylor@apache.org>
>>>> wrote:
>>>>
>>>>> Shorter answer is "no". Your UDF may be executed on the client side as
>>>>> well (depending on the query) and there is of course no HRegion available
>>>>> from the client.
>>>>>
>>>>> On Tue, Apr 18, 2017 at 11:10 AM Sergey Soldatov <
>>>>> sergeysoldatov@gmail.com> wrote:
>>>>>
>>>>>> Well, theoretically there is a way of having a coprocessor that will
>>>>>> keep static public map of current rowkey processed by Phoenix and
the
>>>>>> correlated HRegion instance and get this HRegion using the key that
is
>>>>>> processed by evaluate function. But it's a completely wrong approach
for
>>>>>> both HBase and Phoenix. And it's not clear for me why SQL query may
need
>>>>>> access to the region internals.
>>>>>>
>>>>>> Thanks,
>>>>>> Sergey
>>>>>>
>>>>>> On Mon, Apr 17, 2017 at 10:04 PM, Cheyenne Forbes <
>>>>>> cheyenne.osanu.forbes@gmail.com> wrote:
>>>>>>
>>>>>>> so there is no way of getting HRegion in a UDF?
>>>>>>>
>>>>>>
>>>>>>
>>>>
>>>
>>
>

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