I am currently using habse 0.90.4.
I want to implement Coprocessors. I know that coprocessors were part of
0.92 and in hbase book, it is clearly mention that Coprocessors are
currently on TRUNK.
Is there any way to implement coprocessors in 0.90.4 or will it be
available in next release?

--
Best Regards,
Arsalan Bilal

Hi,

The current release candidate for 0.92 has all the coprocessor goodness included. Try it if you like and let us know if it worked out for you.

Cheers,
Lars

On Dec 13, 2011, at 8:04 AM, Arsalan Bilal wrote:

> I am currently using habse 0.90.4.
> I want to implement Coprocessors. I know that coprocessors were part of
> 0.92 and in hbase book, it is clearly mention that Coprocessors are
> currently on TRUNK.
> Is there any way to implement coprocessors in 0.90.4 or will it be
> available in next release?
>
> --
> Best Regards,
> Arsalan Bilal

Arsalan,

For the Coprocessor feature, you will need to upgrade to the 0.92 release or later.

Best regards,

    - Andy
On Dec 13, 2011, at 12:04 AM, Arsalan Bilal <[EMAIL PROTECTED]> wrote:

> I am currently using habse 0.90.4.
> I want to implement Coprocessors. I know that coprocessors were part of
> 0.92 and in hbase book, it is clearly mention that Coprocessors are
> currently on TRUNK.
> Is there any way to implement coprocessors in 0.90.4 or will it be
> available in next release?
>
> --
> Best Regards,
> Arsalan Bilal

Hi,
>From where I can download release candidate for 0.92, I can only find
0.90.4 version available as the latest release

On Tue, Dec 13, 2011 at 1:18 PM, Andrew Purtell <[EMAIL PROTECTED]> wrote:

> Arsalan,
>
> For the Coprocessor feature, you will need to upgrade to the 0.92 release
> or later.
>
> Best regards,
>
>    - Andy
>
>
> On Dec 13, 2011, at 12:04 AM, Arsalan Bilal <[EMAIL PROTECTED]>
> wrote:
>
> > I am currently using habse 0.90.4.
> > I want to implement Coprocessors. I know that coprocessors were part of
> > 0.92 and in hbase book, it is clearly mention that Coprocessors are
> > currently on TRUNK.
> > Is there any way to implement coprocessors in 0.90.4 or will it be
> > available in next release?
> >
> > --
> > Best Regards,
> > Arsalan Bilal
>

--
Regards
Akhtar Muhammad Din

Akhtar,

You may find them under http://people.apache.org/~stack/hbase-0.92.0-candidate-0/

On 13-Dec-2011, at 3:04 PM, Akhtar Muhammad Din wrote:

> Hi,
> From where I can download release candidate for 0.92, I can only find
> 0.90.4 version available as the latest release
>
>
>
>
>
> On Tue, Dec 13, 2011 at 1:18 PM, Andrew Purtell <[EMAIL PROTECTED]> wrote:
>
>> Arsalan,
>>
>> For the Coprocessor feature, you will need to upgrade to the 0.92 release
>> or later.
>>
>> Best regards,
>>
>>   - Andy
>>
>>
>> On Dec 13, 2011, at 12:04 AM, Arsalan Bilal <[EMAIL PROTECTED]>
>> wrote:
>>
>>> I am currently using habse 0.90.4.
>>> I want to implement Coprocessors. I know that coprocessors were part of
>>> 0.92 and in hbase book, it is clearly mention that Coprocessors are
>>> currently on TRUNK.
>>> Is there any way to implement coprocessors in 0.90.4 or will it be
>>> available in next release?
>>>
>>> --
>>> Best Regards,
>>> Arsalan Bilal
>>
>
>
>
> --
> Regards
> Akhtar Muhammad Din

@Harsh: How can we implement coprocessors in hbase? Can you provide example
of coprocessors using 0.92 or any other informative link to use?

Hi,

Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?

Thanks,
Royston
On 13 Dec 2011, at 09:39, Harsh J wrote:

> Akhtar,
>
> You may find them under http://people.apache.org/~stack/hbase-0.92.0-candidate-0/
>
> On 13-Dec-2011, at 3:04 PM, Akhtar Muhammad Din wrote:
>
>> Hi,
>> From where I can download release candidate for 0.92, I can only find
>> 0.90.4 version available as the latest release
>>
>>
>>
>>
>>
>> On Tue, Dec 13, 2011 at 1:18 PM, Andrew Purtell <[EMAIL PROTECTED]> wrote:
>>
>>> Arsalan,
>>>
>>> For the Coprocessor feature, you will need to upgrade to the 0.92 release
>>> or later.
>>>
>>> Best regards,
>>>
>>>  - Andy
>>>
>>>
>>> On Dec 13, 2011, at 12:04 AM, Arsalan Bilal <[EMAIL PROTECTED]>
>>> wrote:
>>>
>>>> I am currently using habse 0.90.4.
>>>> I want to implement Coprocessors. I know that coprocessors were part of
>>>> 0.92 and in hbase book, it is clearly mention that Coprocessors are
>>>> currently on TRUNK.
>>>> Is there any way to implement coprocessors in 0.90.4 or will it be
>>>> available in next release?
>>>>
>>>> --
>>>> Best Regards,
>>>> Arsalan Bilal
>>>
>>
>>
>>
>> --
>> Regards
>> Akhtar Muhammad Din
>

> Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?

This is not recommended or supported, due to lack of append support in HDFS in that release. Consider Hadoop 1.0 or CDH3.

Best regards,
   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)
----- Original Message -----
> From: Royston Sellman <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Cc:
> Sent: Tuesday, December 13, 2011 8:02 AM
> Subject: Re: hbase coprocessor availability issue in 0.90.4
>
> Hi,
>
> Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?
>
> Thanks,
> Royston
>
>
> On 13 Dec 2011, at 09:39, Harsh J wrote:
>
>>  Akhtar,
>>
>>  You may find them under
> http://people.apache.org/~stack/hbase-0.92.0-candidate-0/
>>
>>  On 13-Dec-2011, at 3:04 PM, Akhtar Muhammad Din wrote:
>>
>>>  Hi,
>>>  From where I can download release candidate for 0.92, I can only find
>>>  0.90.4 version available as the latest release
>>>
>>>
>>>
>>>
>>>
>>>  On Tue, Dec 13, 2011 at 1:18 PM, Andrew Purtell
> <[EMAIL PROTECTED]> wrote:
>>>
>>>>  Arsalan,
>>>>
>>>>  For the Coprocessor feature, you will need to upgrade to the 0.92
> release
>>>>  or later.
>>>>
>>>>  Best regards,
>>>>
>>>>   - Andy
>>>>
>>>>
>>>>  On Dec 13, 2011, at 12:04 AM, Arsalan Bilal
> <[EMAIL PROTECTED]>
>>>>  wrote:
>>>>
>>>>>  I am currently using habse 0.90.4.
>>>>>  I want to implement Coprocessors. I know that coprocessors were
> part of
>>>>>  0.92 and in hbase book, it is clearly mention that Coprocessors
> are
>>>>>  currently on TRUNK.
>>>>>  Is there any way to implement coprocessors in 0.90.4 or will it
> be
>>>>>  available in next release?
>>>>>
>>>>>  --
>>>>>  Best Regards,
>>>>>  Arsalan Bilal
>>>>
>>>
>>>
>>>
>>>  --
>>>  Regards
>>>  Akhtar Muhammad Din
>>
>

Arsalan,

> Can you provide example of coprocessors using 0.92

The unit tests provide some limited examples: http://svn.apache.org/viewvc/hbase/branches/0.92/src/test/java/org/apache/hadoop/hbase/coprocessor/

A complete example implementation is the AccessController in 0.92: http://svn.apache.org/viewvc/hbase/branches/0.92/security/src/main/java/org/apache/hadoop/hbase/security/access/
This Coprocessor implements the MasterObserver and RegionObserver interfaces. It also extends RPC with an Endpoint (a custom RPC protocol), as AccessControllerProtocol.

> or any other informative link to use?

I need to recover some content on Coprocessor development posted to a blog a while back. It will appear on the HBase wiki when I can get it back. In the meantime, there is:

    http://www.slideshare.net/ghelmling/new-hbase-features-coprocessors-and-security

Best regards,
   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)
----- Original Message -----
> From: Arsalan Bilal <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Cc:
> Sent: Tuesday, December 13, 2011 7:02 AM
> Subject: Re: hbase coprocessor availability issue in 0.90.4
>
> @Harsh: How can we implement coprocessors in hbase? Can you provide example
> of coprocessors using 0.92 or any other informative link to use?
>

Hi Andy,

Thanks for your reply. I had not realised there is a Hadoop 1.0. Can you tell me if there is a release for it or do I have to build my own from the source?

Royston
On 13 Dec 2011, at 16:45, Andrew Purtell wrote:

>> Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?
>
> This is not recommended or supported, due to lack of append support in HDFS in that release. Consider Hadoop 1.0 or CDH3.
>
> Best regards,
>
>
>    - Andy
>
> Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)
>
>
> ----- Original Message -----
>> From: Royston Sellman <[EMAIL PROTECTED]>
>> To: [EMAIL PROTECTED]
>> Cc:
>> Sent: Tuesday, December 13, 2011 8:02 AM
>> Subject: Re: hbase coprocessor availability issue in 0.90.4
>>
>> Hi,
>>
>> Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?
>>
>> Thanks,
>> Royston
>>
>>
>> On 13 Dec 2011, at 09:39, Harsh J wrote:
>>
>>> Akhtar,
>>>
>>> You may find them under
>> http://people.apache.org/~stack/hbase-0.92.0-candidate-0/
>>>
>>> On 13-Dec-2011, at 3:04 PM, Akhtar Muhammad Din wrote:
>>>
>>>> Hi,
>>>> From where I can download release candidate for 0.92, I can only find
>>>> 0.90.4 version available as the latest release
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Dec 13, 2011 at 1:18 PM, Andrew Purtell
>> <[EMAIL PROTECTED]> wrote:
>>>>
>>>>> Arsalan,
>>>>>
>>>>> For the Coprocessor feature, you will need to upgrade to the 0.92
>> release
>>>>> or later.
>>>>>
>>>>> Best regards,
>>>>>
>>>>>   - Andy
>>>>>
>>>>>
>>>>> On Dec 13, 2011, at 12:04 AM, Arsalan Bilal
>> <[EMAIL PROTECTED]>
>>>>> wrote:
>>>>>
>>>>>> I am currently using habse 0.90.4.
>>>>>> I want to implement Coprocessors. I know that coprocessors were
>> part of
>>>>>> 0.92 and in hbase book, it is clearly mention that Coprocessors
>> are
>>>>>> currently on TRUNK.
>>>>>> Is there any way to implement coprocessors in 0.90.4 or will it
>> be
>>>>>> available in next release?
>>>>>>
>>>>>> --
>>>>>> Best Regards,
>>>>>> Arsalan Bilal
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Regards
>>>> Akhtar Muhammad Din
>>>
>>

Royston,

Hadoop 1.0 was/is also known as the 0.20.20x branch. It's confusing, I apologize.

The current release of that branch is 0.20.205: http://hadoop.apache.org/common/releases.html#17+Oct%2C+2011%3A+release+0.20.205.0+available .

A "1.0" release from this lineage should be happening soon. The corresponding branch in Apache SVN is "branch-1.0".

Until a release happens, CDH3 is your best option for HBase.
 

Best regards,
   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)
----- Original Message -----
> From: Royston Sellman <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Cc:
> Sent: Tuesday, December 13, 2011 10:42 AM
> Subject: Re: hbase coprocessor availability issue in 0.90.4
>
> Hi Andy,
>
> Thanks for your reply. I had not realised there is a Hadoop 1.0. Can you tell me
> if there is a release for it or do I have to build my own from the source?
>
> Royston
>
>
> On 13 Dec 2011, at 16:45, Andrew Purtell wrote:
>
>>>  Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?
>>
>>  This is not recommended or supported, due to lack of append support in HDFS
> in that release. Consider Hadoop 1.0 or CDH3.
>>
>>  Best regards,
>>
>>
>>     - Andy
>>
>>  Problems worthy of attack prove their worth by hitting back. - Piet Hein
> (via Tom White)
>>
>>
>>  ----- Original Message -----
>>>  From: Royston Sellman <[EMAIL PROTECTED]>
>>>  To: [EMAIL PROTECTED]
>>>  Cc:
>>>  Sent: Tuesday, December 13, 2011 8:02 AM
>>>  Subject: Re: hbase coprocessor availability issue in 0.90.4
>>>
>>>  Hi,
>>>
>>>  Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?
>>>
>>>  Thanks,
>>>  Royston
>>>
>>>
>>>  On 13 Dec 2011, at 09:39, Harsh J wrote:
>>>
>>>>  Akhtar,
>>>>
>>>>  You may find them under
>>>  http://people.apache.org/~stack/hbase-0.92.0-candidate-0/
>>>>
>>>>  On 13-Dec-2011, at 3:04 PM, Akhtar Muhammad Din wrote:
>>>>
>>>>>  Hi,
>>>>>  From where I can download release candidate for 0.92, I can
> only find
>>>>>  0.90.4 version available as the latest release
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>  On Tue, Dec 13, 2011 at 1:18 PM, Andrew Purtell
>>>  <[EMAIL PROTECTED]> wrote:
>>>>>
>>>>>>  Arsalan,
>>>>>>
>>>>>>  For the Coprocessor feature, you will need to upgrade to
> the 0.92
>>>  release
>>>>>>  or later.
>>>>>>
>>>>>>  Best regards,
>>>>>>
>>>>>>    - Andy
>>>>>>
>>>>>>
>>>>>>  On Dec 13, 2011, at 12:04 AM, Arsalan Bilal
>>>  <[EMAIL PROTECTED]>
>>>>>>  wrote:
>>>>>>
>>>>>>>  I am currently using habse 0.90.4.
>>>>>>>  I want to implement Coprocessors. I know that
> coprocessors were
>>>  part of
>>>>>>>  0.92 and in hbase book, it is clearly mention that
> Coprocessors
>>>  are
>>>>>>>  currently on TRUNK.
>>>>>>>  Is there any way to implement coprocessors in 0.90.4 or
> will it
>>>  be
>>>>>>>  available in next release?
>>>>>>>
>>>>>>>  --
>>>>>>>  Best Regards,
>>>>>>>  Arsalan Bilal
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>  --
>>>>>  Regards
>>>>>  Akhtar Muhammad Din
>>>>
>>>
>

Hi Andy,

Thanks for the pointer to the 0.20.205.0 release.

We are constrained to use Scientific Linux for our cluster and although SciLin is close to Red Hat from experience CDH does not just drop into place. We've got used to managing Hadoop/HBase for our cluster. So I'd like to avoid CDH3 for now. We will try building 1.0 for ourselves first. Plan B will be the 0.20.205 release you pointed out.

Just to clarify: browsing the SVN repo it looks like hadoop/common/branches/branch-1.0 and hadoop/common/tags/release-1.0.0-rc2 are identical. Is that correct?

Royston

 
On 13 Dec 2011, at 19:11, Andrew Purtell wrote:

> Royston,
>
> Hadoop 1.0 was/is also known as the 0.20.20x branch. It's confusing, I apologize.
>
> The current release of that branch is 0.20.205: http://hadoop.apache.org/common/releases.html#17+Oct%2C+2011%3A+release+0.20.205.0+available .
>
> A "1.0" release from this lineage should be happening soon. The corresponding branch in Apache SVN is "branch-1.0".
>
> Until a release happens, CDH3 is your best option for HBase.
>  
>
> Best regards,
>
>
>    - Andy
>
> Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)
>
>
> ----- Original Message -----
>> From: Royston Sellman <[EMAIL PROTECTED]>
>> To: [EMAIL PROTECTED]
>> Cc:
>> Sent: Tuesday, December 13, 2011 10:42 AM
>> Subject: Re: hbase coprocessor availability issue in 0.90.4
>>
>> Hi Andy,
>>
>> Thanks for your reply. I had not realised there is a Hadoop 1.0. Can you tell me
>> if there is a release for it or do I have to build my own from the source?
>>
>> Royston
>>
>>
>> On 13 Dec 2011, at 16:45, Andrew Purtell wrote:
>>
>>>> Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?
>>>
>>> This is not recommended or supported, due to lack of append support in HDFS
>> in that release. Consider Hadoop 1.0 or CDH3.
>>>
>>> Best regards,
>>>
>>>
>>>     - Andy
>>>
>>> Problems worthy of attack prove their worth by hitting back. - Piet Hein
>> (via Tom White)
>>>
>>>
>>> ----- Original Message -----
>>>> From: Royston Sellman <[EMAIL PROTECTED]>
>>>> To: [EMAIL PROTECTED]
>>>> Cc:
>>>> Sent: Tuesday, December 13, 2011 8:02 AM
>>>> Subject: Re: hbase coprocessor availability issue in 0.90.4
>>>>
>>>> Hi,
>>>>
>>>> Does hbase-0.92.0-candidate-0 run with hadoop 0.20.2?
>>>>
>>>> Thanks,
>>>> Royston
>>>>
>>>>
>>>> On 13 Dec 2011, at 09:39, Harsh J wrote:
>>>>
>>>>> Akhtar,
>>>>>
>>>>> You may find them under
>>>> http://people.apache.org/~stack/hbase-0.92.0-candidate-0/
>>>>>
>>>>> On 13-Dec-2011, at 3:04 PM, Akhtar Muhammad Din wrote:
>>>>>
>>>>>> Hi,
>>>>>> From where I can download release candidate for 0.92, I can
>> only find
>>>>>> 0.90.4 version available as the latest release
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Tue, Dec 13, 2011 at 1:18 PM, Andrew Purtell
>>>> <[EMAIL PROTECTED]> wrote:
>>>>>>
>>>>>>> Arsalan,
>>>>>>>
>>>>>>> For the Coprocessor feature, you will need to upgrade to
>> the 0.92
>>>> release
>>>>>>> or later.
>>>>>>>
>>>>>>> Best regards,
>>>>>>>
>>>>>>>    - Andy
>>>>>>>
>>>>>>>
>>>>>>> On Dec 13, 2011, at 12:04 AM, Arsalan Bilal
>>>> <[EMAIL PROTECTED]>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> I am currently using habse 0.90.4.
>>>>>>>> I want to implement Coprocessors. I know that
>> coprocessors were
>>>> part of
>>>>>>>> 0.92 and in hbase book, it is clearly mention that
>> Coprocessors
>>>> are
>>>>>>>> currently on TRUNK.
>>>>>>>> Is there any way to implement coprocessors in 0.90.4 or
>> will it
>>>> be
>>>>>>>> available in next release?
>>>>>>>>
>>>>>>>> --
>>>>>>>> Best Regards,
>>>>>>>> Arsalan Bilal
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Regards
>>>>>> Akhtar Muhammad Din
>>>>>
>>>>
>>