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Posted to mapreduce-dev@hadoop.apache.org by Thoihen Maibam <th...@gmail.com> on 2013/04/26 20:11:14 UTC

Cannot find JobTracker and TaskTracker classes in Hadoop 2.0.2-alpha

Hi,

Can anyone help me out where can I find JobTracker and TaskTracker classes
for the above releases, it's not present in hadoop-mapreduce-project. I was
tracing through the source code from JobSubmission but lost the flow as I
could not find the JobTracker and TaskTracker.

Are these classes replaced with some other classes ?

Regards
thoihen

Re: Cannot find JobTracker and TaskTracker classes in Hadoop 2.0.2-alpha

Posted by Thoihen Maibam <th...@gmail.com>.

Thanks Karthik


On Fri, Apr 26, 2013 at 11:58 PM, Karthik Kambatla <ka...@cloudera.com>wrote:

> Hi Thoihen
>
> Hadoop 2.x (and 0.23.x) releases have MapReduce running on YARN, which
> operates on the ResourceManager/NodeManager architecture  and not
> JobTracker/TaskTracker. Hadoop 1.x releases have the JT/TT architecture if
> you are interested in that.
>
> Thanks
> Karthik
>
>
> On Fri, Apr 26, 2013 at 11:11 AM, Thoihen Maibam <thoihen123@gmail.com
> >wrote:
>
> > Hi,
> >
> > Can anyone help me out where can I find JobTracker and TaskTracker
> classes
> > for the above releases, it's not present in hadoop-mapreduce-project. I
> was
> > tracing through the source code from JobSubmission but lost the flow as I
> > could not find the JobTracker and TaskTracker.
> >
> > Are these classes replaced with some other classes ?
> >
> > Regards
> > thoihen
> >
>

Re: Cannot find JobTracker and TaskTracker classes in Hadoop 2.0.2-alpha

Posted by Karthik Kambatla <ka...@cloudera.com>.

Hi Thoihen

Hadoop 2.x (and 0.23.x) releases have MapReduce running on YARN, which
operates on the ResourceManager/NodeManager architecture  and not
JobTracker/TaskTracker. Hadoop 1.x releases have the JT/TT architecture if
you are interested in that.

Thanks
Karthik

On Fri, Apr 26, 2013 at 11:11 AM, Thoihen Maibam <th...@gmail.com>wrote:

> Hi,
>
> Can anyone help me out where can I find JobTracker and TaskTracker classes
> for the above releases, it's not present in hadoop-mapreduce-project. I was
> tracing through the source code from JobSubmission but lost the flow as I
> could not find the JobTracker and TaskTracker.
>
> Are these classes replaced with some other classes ?
>
> Regards
> thoihen
>