Hi,
Can someone please point to any good reference that tells clearly how to
checkout Hadoop code base in eclipse, make any changes and re-compile.
Actually, I wanted to change some part in Hadoop, so wants to see the above
effect, preferrably in eclipse.

Thanks,
Bikash

1) install svn plugin inside eclipse
2) specify the appropriate repository location for hadoop
3) check out code using the plugin inside eclipse
4) make code changes, compile using ant targets, also run tests

Hope that helps, let me know if you need more details.

Sent from my iPhone

On Mar 17, 2011, at 7:47 AM, bikash sharma <[EMAIL PROTECTED]> wrote:

> Hi,
> Can someone please point to any good reference that tells clearly how to
> checkout Hadoop code base in eclipse, make any changes and re-compile.
> Actually, I wanted to change some part in Hadoop, so wants to see the above
> effect, preferrably in eclipse.
>
> Thanks,
> Bikash

http://wiki.apache.org/hadoop/EclipseEnvironment

On Thu, Mar 17, 2011 at 8:17 PM, bikash sharma <[EMAIL PROTECTED]> wrote:
> Hi,
> Can someone please point to any good reference that tells clearly how to
> checkout Hadoop code base in eclipse, make any changes and re-compile.
> Actually, I wanted to change some part in Hadoop, so wants to see the above
> effect, preferrably in eclipse.
>
> Thanks,
> Bikash
>

--
Harsh J
http://harshj.com

http://www.cloudera.com/blog/2009/04/configuring-eclipse-for-hadoop-development-a-screencast/
- Good for a starter !

On Thu, Mar 17, 2011 at 9:45 PM, Harsh J <[EMAIL PROTECTED]> wrote:
> http://wiki.apache.org/hadoop/EclipseEnvironment
>
> On Thu, Mar 17, 2011 at 8:17 PM, bikash sharma <[EMAIL PROTECTED]> wrote:
>> Hi,
>> Can someone please point to any good reference that tells clearly how to
>> checkout Hadoop code base in eclipse, make any changes and re-compile.
>> Actually, I wanted to change some part in Hadoop, so wants to see the above
>> effect, preferrably in eclipse.
>>
>> Thanks,
>> Bikash
>>
>
>
>
> --
> Harsh J
> http://harshj.com
>

--
Regards,
Bharath .V
w:http://research.iiit.ac.in/~bharath.v

Thank you all.

On Thu, Mar 17, 2011 at 12:21 PM, bharath vissapragada <
[EMAIL PROTECTED]> wrote:

>
> http://www.cloudera.com/blog/2009/04/configuring-eclipse-for-hadoop-development-a-screencast/
> - Good for a starter !
>
> On Thu, Mar 17, 2011 at 9:45 PM, Harsh J <[EMAIL PROTECTED]> wrote:
> > http://wiki.apache.org/hadoop/EclipseEnvironment
> >
> > On Thu, Mar 17, 2011 at 8:17 PM, bikash sharma <[EMAIL PROTECTED]>
> wrote:
> >> Hi,
> >> Can someone please point to any good reference that tells clearly how to
> >> checkout Hadoop code base in eclipse, make any changes and re-compile.
> >> Actually, I wanted to change some part in Hadoop, so wants to see the
> above
> >> effect, preferrably in eclipse.
> >>
> >> Thanks,
> >> Bikash
> >>
> >
> >
> >
> > --
> > Harsh J
> > http://harshj.com
> >
>
>
>
> --
> Regards,
> Bharath .V
> w:http://research.iiit.ac.in/~bharath.v
>

Hi,
I followed the pointers to checkout Hadoop in eclipse and then compiled the
source.
The ant build for build.xml is showing successful, however under the
'Problem' tab in eclipse, I am getting the following error:

"AbstractDelegationTokenIdentifier cannot be resolved to a type"

Can anyone please help.

Thanks,
Bikash
On Thu, Mar 17, 2011 at 1:52 PM, bikash sharma <[EMAIL PROTECTED]>wrote:

> Thank you all.
>
>
> On Thu, Mar 17, 2011 at 12:21 PM, bharath vissapragada <
> [EMAIL PROTECTED]> wrote:
>
>>
>> http://www.cloudera.com/blog/2009/04/configuring-eclipse-for-hadoop-development-a-screencast/
>> - Good for a starter !
>>
>> On Thu, Mar 17, 2011 at 9:45 PM, Harsh J <[EMAIL PROTECTED]> wrote:
>> > http://wiki.apache.org/hadoop/EclipseEnvironment
>> >
>> > On Thu, Mar 17, 2011 at 8:17 PM, bikash sharma <[EMAIL PROTECTED]>
>> wrote:
>> >> Hi,
>> >> Can someone please point to any good reference that tells clearly how
>> to
>> >> checkout Hadoop code base in eclipse, make any changes and re-compile.
>> >> Actually, I wanted to change some part in Hadoop, so wants to see the
>> above
>> >> effect, preferrably in eclipse.
>> >>
>> >> Thanks,
>> >> Bikash
>> >>
>> >
>> >
>> >
>> > --
>> > Harsh J
>> > http://harshj.com
>> >
>>
>>
>>
>> --
>> Regards,
>> Bharath .V
>> w:http://research.iiit.ac.in/~bharath.v
>>
>
>

P.S.
On building the project in eclipse, I also get the following two errors:

Description Resource Path Location Type
The project was not built since its build path is incomplete. Cannot find
the class file for com.sun.javadoc.RootDoc. Fix the build path then try
building this project Hadoop Unknown Java Problem
The type com.sun.javadoc.RootDoc cannot be resolved. It is indirectly
referenced from required .class files
ExcludePrivateAnnotationsJDiffDoclet.java
Hadoop/src/java/org/apache/hadoop/classification/tools line 1 Java Problem
On Thu, Mar 17, 2011 at 7:41 PM, bikash sharma <[EMAIL PROTECTED]>wrote:

> Hi,
> I followed the pointers to checkout Hadoop in eclipse and then compiled the
> source.
> The ant build for build.xml is showing successful, however under the
> 'Problem' tab in eclipse, I am getting the following error:
>
> "AbstractDelegationTokenIdentifier cannot be resolved to a type"
>
> Can anyone please help.
>
> Thanks,
> Bikash
>
>
> On Thu, Mar 17, 2011 at 1:52 PM, bikash sharma <[EMAIL PROTECTED]>wrote:
>
>> Thank you all.
>>
>>
>> On Thu, Mar 17, 2011 at 12:21 PM, bharath vissapragada <
>> [EMAIL PROTECTED]> wrote:
>>
>>>
>>> http://www.cloudera.com/blog/2009/04/configuring-eclipse-for-hadoop-development-a-screencast/
>>> - Good for a starter !
>>>
>>> On Thu, Mar 17, 2011 at 9:45 PM, Harsh J <[EMAIL PROTECTED]> wrote:
>>> > http://wiki.apache.org/hadoop/EclipseEnvironment
>>> >
>>> > On Thu, Mar 17, 2011 at 8:17 PM, bikash sharma <
>>> [EMAIL PROTECTED]> wrote:
>>> >> Hi,
>>> >> Can someone please point to any good reference that tells clearly how
>>> to
>>> >> checkout Hadoop code base in eclipse, make any changes and re-compile.
>>> >> Actually, I wanted to change some part in Hadoop, so wants to see the
>>> above
>>> >> effect, preferrably in eclipse.
>>> >>
>>> >> Thanks,
>>> >> Bikash
>>> >>
>>> >
>>> >
>>> >
>>> > --
>>> > Harsh J
>>> > http://harshj.com
>>> >
>>>
>>>
>>>
>>> --
>>> Regards,
>>> Bharath .V
>>> w:http://research.iiit.ac.in/~bharath.v
>>>
>>
>>
>

I resolved these errors. I was missing tools.jar which I added as external
.jar file.

On Thu, Mar 17, 2011 at 8:37 PM, bikash sharma <[EMAIL PROTECTED]>wrote:

> P.S.
> On building the project in eclipse, I also get the following two errors:
>
> Description Resource Path Location Type
> The project was not built since its build path is incomplete. Cannot find
> the class file for com.sun.javadoc.RootDoc. Fix the build path then try
> building this project Hadoop Unknown Java Problem
> The type com.sun.javadoc.RootDoc cannot be resolved. It is indirectly
> referenced from required .class files
> ExcludePrivateAnnotationsJDiffDoclet.java
> Hadoop/src/java/org/apache/hadoop/classification/tools line 1 Java Problem
>
>
> On Thu, Mar 17, 2011 at 7:41 PM, bikash sharma <[EMAIL PROTECTED]>wrote:
>
>> Hi,
>> I followed the pointers to checkout Hadoop in eclipse and then compiled
>> the source.
>> The ant build for build.xml is showing successful, however under the
>> 'Problem' tab in eclipse, I am getting the following error:
>>
>> "AbstractDelegationTokenIdentifier cannot be resolved to a type"
>>
>> Can anyone please help.
>>
>> Thanks,
>> Bikash
>>
>>
>> On Thu, Mar 17, 2011 at 1:52 PM, bikash sharma <[EMAIL PROTECTED]>wrote:
>>
>>> Thank you all.
>>>
>>>
>>> On Thu, Mar 17, 2011 at 12:21 PM, bharath vissapragada <
>>> [EMAIL PROTECTED]> wrote:
>>>
>>>>
>>>> http://www.cloudera.com/blog/2009/04/configuring-eclipse-for-hadoop-development-a-screencast/
>>>> - Good for a starter !
>>>>
>>>> On Thu, Mar 17, 2011 at 9:45 PM, Harsh J <[EMAIL PROTECTED]>
>>>> wrote:
>>>> > http://wiki.apache.org/hadoop/EclipseEnvironment
>>>> >
>>>> > On Thu, Mar 17, 2011 at 8:17 PM, bikash sharma <
>>>> [EMAIL PROTECTED]> wrote:
>>>> >> Hi,
>>>> >> Can someone please point to any good reference that tells clearly how
>>>> to
>>>> >> checkout Hadoop code base in eclipse, make any changes and
>>>> re-compile.
>>>> >> Actually, I wanted to change some part in Hadoop, so wants to see the
>>>> above
>>>> >> effect, preferrably in eclipse.
>>>> >>
>>>> >> Thanks,
>>>> >> Bikash
>>>> >>
>>>> >
>>>> >
>>>> >
>>>> > --
>>>> > Harsh J
>>>> > http://harshj.com
>>>> >
>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>> Bharath .V
>>>> w:http://research.iiit.ac.in/~bharath.v
>>>>
>>>
>>>
>>
>