MultithreadedMapRunner

Can anyone provide me with a java code sample of how I can
use the
MultithreadedMapRunner
<http://lucene.apache.org/hadoop/api/org/a
pache/hadoop/mapred/lib/Multit
hreadedMapRunner.html> ? Or at least some hints? 

Please.

 

Thx. 

Peter

On the JobConf use the setMapRunnerClass() method to set the
multithreaded
map runner and set the
mapred.map.multithreadedrunner.threads property with
the number of threads you want it to use.

That would do.

And make sure your map() code is thread safe.

A

On Dec 5, 2007 2:44 PM, Peter Thygesen <thygeseninfopaq.dk> wrote:

> Can anyone provide me with a java code sample of how I
can use the
> MultithreadedMapRunner
> <http://lucene.apache.org/hadoop/api/org/a
pache/hadoop/mapred/lib/Multit
> hreadedMapRunner.html> ? Or at least some hints?
>
> Please.
>
>
>
> Thx.
>
> Peter
>
>