Hi,

I need some clarification on the following issues -

1. TransactionalTable seems to be present in the current API docs,
does that mean it will be present in the course of 0.89 and continue
to 0.90?

2. Is there a way to start up a single node in memory HBase server
programatically? I want to do it from a JUnit class to use it from
within some tests. Where can I find some sample code in this regard?

Thank you,

--
Imran M Yousuf
Blog: http://imyousuf-tech.blogs.smartitengineering.com/
Mobile: +880-1711402557

On 19 Aug 2010, at 05:57, Imran M Yousuf wrote:

> Hi,
>
> I need some clarification on the following issues -
>
> 1. TransactionalTable seems to be present in the current API docs,
> does that mean it will be present in the course of 0.89 and continue
> to 0.90?
>
> 2. Is there a way to start up a single node in memory HBase server
> programatically? I want to do it from a JUnit class to use it from
> within some tests. Where can I find some sample code in this regard?
>

I can't offer any insight on the first, but I encountered the same issues as you in the second. In the end there wasn't anyway to bring a HBase instance up I felt was fast enough to be useful in tests.

I went with mock objects, which is probably better anyway since you shouldn't really need to test the HBase code in your unit tests.

I mocked HTable in my tests and just made sure I was putting what I expected for writes and returned what I expected HBase to return for reads.

Andrew

@ Andrew:  Your HTable mock sounds interesting.  Do you think it
others would find it useful and if so, would you consider contributing
it?

@Imran, on 2.), James Kennedy and his cohort are working on making
THBase work w/ 0.89/0.90 hbase.  See their github repo for the latest
state.

St.Ack

On Wed, Aug 18, 2010 at 11:10 PM, Andrew McCall
<[EMAIL PROTECTED]> wrote:
>
> On 19 Aug 2010, at 05:57, Imran M Yousuf wrote:
>
>> Hi,
>>
>> I need some clarification on the following issues -
>>
>> 1. TransactionalTable seems to be present in the current API docs,
>> does that mean it will be present in the course of 0.89 and continue
>> to 0.90?
>>
>> 2. Is there a way to start up a single node in memory HBase server
>> programatically? I want to do it from a JUnit class to use it from
>> within some tests. Where can I find some sample code in this regard?
>>
>
> I can't offer any insight on the first, but I encountered the same issues as you in the second. In the end there wasn't anyway to bring a HBase instance up I felt was fast enough to be useful in tests.
>
> I went with mock objects, which is probably better anyway since you shouldn't really need to test the HBase code in your unit tests.
>
> I mocked HTable in my tests and just made sure I was putting what I expected for writes and returned what I expected HBase to return for reads.
>
> Andrew

On 19 Aug 2010, at 17:24, Stack wrote:

> @ Andrew:  Your HTable mock sounds interesting.  Do you think it
> others would find it useful and if so, would you consider contributing
> it?

I just used Mockito in my tests, captured the Puts etc and checked that they had the data I expected them to have.

I was really only testing that I'd turned my objects into byte arrays and was putting them in the right place. I left the workings of HBase to it's self and just assumed it was working.

Andrew

>
> @Imran, on 2.), James Kennedy and his cohort are working on making
> THBase work w/ 0.89/0.90 hbase.  See their github repo for the latest
> state.
>
> St.Ack
>
> On Wed, Aug 18, 2010 at 11:10 PM, Andrew McCall
> <[EMAIL PROTECTED]> wrote:
>>
>> On 19 Aug 2010, at 05:57, Imran M Yousuf wrote:
>>
>>> Hi,
>>>
>>> I need some clarification on the following issues -
>>>
>>> 1. TransactionalTable seems to be present in the current API docs,
>>> does that mean it will be present in the course of 0.89 and continue
>>> to 0.90?
>>>
>>> 2. Is there a way to start up a single node in memory HBase server
>>> programatically? I want to do it from a JUnit class to use it from
>>> within some tests. Where can I find some sample code in this regard?
>>>
>>
>> I can't offer any insight on the first, but I encountered the same issues as you in the second. In the end there wasn't anyway to bring a HBase instance up I felt was fast enough to be useful in tests.
>>
>> I went with mock objects, which is probably better anyway since you shouldn't really need to test the HBase code in your unit tests.
>>
>> I mocked HTable in my tests and just made sure I was putting what I expected for writes and returned what I expected HBase to return for reads.
>>
>> Andrew

Hello,

Related to (2), the closest to what you want is
org.apache.hadoop.hbase.HBaseTestingUtility. It isn't completely in memory
(it performs some I/O and it is quite slow to unit tests standards because
of that), but you can start and stop a server programmatically and it is
very useful when automating tests.

You can find code that uses it in src/test/java/org/apache/hadoop/hbase/.

On Thu, Aug 19, 2010 at 1:57 AM, Imran M Yousuf <[EMAIL PROTECTED]> wrote:

> Hi,
>
> I need some clarification on the following issues -
>
> 1. TransactionalTable seems to be present in the current API docs,
> does that mean it will be present in the course of 0.89 and continue
> to 0.90?
>
> 2. Is there a way to start up a single node in memory HBase server
> programatically? I want to do it from a JUnit class to use it from
> within some tests. Where can I find some sample code in this regard?
>
> Thank you,
>
> --
> Imran M Yousuf
> Blog: http://imyousuf-tech.blogs.smartitengineering.com/
> Mobile: +880-1711402557
>

--
Guilherme

msn: [EMAIL PROTECTED]
homepage: http://sites.google.com/site/germoglio/

On Thu, Aug 19, 2010 at 4:42 PM, Guilherme Germoglio
<[EMAIL PROTECTED]> wrote:
> Hello,
>
> Related to (2), the closest to what you want is
> org.apache.hadoop.hbase.HBaseTestingUtility. It isn't completely in memory
> (it performs some I/O and it is quite slow to unit tests standards because
> of that), but you can start and stop a server programmatically and it is
> very useful when automating tests.
>
> You can find code that uses it in src/test/java/org/apache/hadoop/hbase/.

Thanks Guilherme for the pointer. I can't find any JavaDoc so will
have a look at the test cases to checkout its usage.

/Imran

>
> On Thu, Aug 19, 2010 at 1:57 AM, Imran M Yousuf <[EMAIL PROTECTED]> wrote:
>
>> Hi,
>>
>> I need some clarification on the following issues -
>>
>> 1. TransactionalTable seems to be present in the current API docs,
>> does that mean it will be present in the course of 0.89 and continue
>> to 0.90?
>>
>> 2. Is there a way to start up a single node in memory HBase server
>> programatically? I want to do it from a JUnit class to use it from
>> within some tests. Where can I find some sample code in this regard?
>>
>> Thank you,
>>
>> --
>> Imran M Yousuf
>> Blog: http://imyousuf-tech.blogs.smartitengineering.com/
>> Mobile: +880-1711402557
>>
>
>
>
> --
> Guilherme
>
> msn: [EMAIL PROTECTED]
> homepage: http://sites.google.com/site/germoglio/
>

--
Imran M Yousuf
Blog: http://imyousuf-tech.blogs.smartitengineering.com/
Mobile: +880-1711402557