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From Harsh J <ha...@cloudera.com>
Subject Re: NoSuchMethodException when using old mapred apis
Date Mon, 10 Sep 2012 11:35:35 GMT
P.s. Please see my reply on the stackoverflow link you'd sent, if you
are hitting the same problem.

On Mon, Sep 10, 2012 at 4:53 PM, Harsh J <harsh@cloudera.com> wrote:
> Hi,
>
> Your failure seems to be in the task-side. I suspect a mix of libraries.
>
> What version of Hadoop are you *deploying* across all nodes?
>
> On Mon, Sep 10, 2012 at 3:56 PM, Li Li <fancyerii@gmail.com> wrote:
>> hi all,
>>     I am trying an example from an tutorial for version 0.19 by using
>> hadoop 1.0.3.
>
> Why do that when 1.0.3 has its own examples and tutorials at
> http://hadoop.apache.org/common/docs/stable/?
>
>>     and it compiles but fail when running in pseudo distributed mode.
>
> I packaged your code from the below link and am able to run it just
> fine on 1.0.3. and a bunch of other versions I have on my machine.
>
> Could you share your specific error please?
>
>>     I found a question in stackoverflow
>> http://stackoverflow.com/questions/11961517/new-to-hadoop-mapreduce-getting-a-nosuchmethodexception-on-mapred-reducer-init
>>     if I don't use older version, I can't run older codes?
>
> The answer there is bogus. There is no such issue that makes you not
> use mapred.* API over mapreduce.*. The problem was something else that
> should've taken some more debugging to find out, but the asker now
> believes it was the use of the stable API.
>
> --
> Harsh J



-- 
Harsh J

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