Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hadoop >> mail # user >> Re: NoSuchMethodException when using old mapred apis


Copy link to this message
-
Re: NoSuchMethodException when using old mapred apis
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 <[EMAIL PROTECTED]> 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
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB