I depends on how many tasks you created, how many slave nodes in the
cluster, how many slots allocated in each slave node, and how each node is
occupied. Each of them has corresponding setting parameters. Please refer to
hadoop document for more details.
2010/11/16 Shen LI
> How to set the numbe
Hi, Shen Li,
I'm modifying hadoop core code too. I just use the build.xml distributed
along with the source code. It just works.
2010/11/9 Shen LI
> Hi,
>
> How can I compile and use my own hadoop? I modified some source code of
> hadoop-0.20.2. Then, I tried to build it with eclipse according
Thanks Jeff. Those are all valuable links. It seems there are quite a few
people out there working on incremental MapReduce.
2010/9/1 Jeff Hammerbacher
> Hey Stephen,
>
> There have been several proposals for implementing such a feature. See
> https://issues.apache.org/jira/browse/MAPREDUCE-121
I have some job scope statistics of double type, and I want to use mechanism
like Counters (Reporter). Does Hadoop MR have such kind of thing? Thanks.
Seems you didn't register a Writable factory for your data type.
2010/7/19 Khaled BEN BAHRI
> Hello :)
>
> I developped my first mapreduce program with eclipse.
>
> when i want to execute it i have this error i tried to solve it but i
> failed :
>
>
>
> Jul 19, 2010 5:06:37 PM org.apache.hadoop.
That's a very good book. :-)
2010/6/29 Mohamed Riadh Trad
> Hi Khaled,
>
> I started with Hadoop The Definitive Guide, in addition of the sample
> programs.
>
> http://oreilly.com/catalog/9780596521981
>
> Regards.
>
> Trad Mohamed Riadh, M.Sc, Ing.
> PhD. student
> INRIA-TELECOM PARISTECH
>
> O
