Hi,

May be you should try to look at JobControl (see TestJobControl.java for
particular example).

Regards,
Lukas

On Wed, Jul 9, 2008 at 10:28 PM, Mori Bellamy <[EMAIL PROTECTED]> wrote:

> Hey all,
> I'm trying to chain multiple mapreduce jobs together to accomplish a
> complex task. I believe that the way to do it is as follows:
>
> JobConf conf = new JobConf(getConf(), MyClass.class);
> //configure job.... set mappers, reducers, etc
> SequenceFileOutputFormat.setOutputPath(conf,myPath1);
> JobClient.runJob(conf);
>
> //new job
> JobConf conf2 = new JobConf(getConf(),MyClass.class)
> SequenceFileInputFormat.setInputPath(conf,myPath1);
> //more configuration...
> JobClient.runJob(conf2)
>
> Is this the canonical way to chain jobs? I'm having some trouble with this
> method -- for especially long jobs, the latter MR tasks sometimes do not
> start up.
>



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http://blog.lukas-vlcek.com/

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