Hi Stu- Thanks for the tip! Chris
On 11/3/07, Stu Hood <[EMAIL PROTECTED]> wrote: > > Hi Chris, > > A very comfortable way to pass configuration parameters to mappers is in > your JobConf. By using JobConf.set(String,String), you can set arbitrary > parameters that will be distributed to all mappers. > > In order to fetch these parameters in your Mapper, you will need to > override the MapReduceBase.configure(JobConf) method. The default > implementation of this method in MapReduceBase does nothing with the > configuration, but you can implement it to change the configuration of the > mapper by .get(String)'ing the parameters you stored and setting private > variables, etc. > > Good luck! > > Thanks, > Stu > > > -----Original Message----- > From: Chris Dyer <[EMAIL PROTECTED]> > Sent: Saturday, November 3, 2007 5:42pm > To: hadoop-user@lucene.apache.org > Subject: configuration for mappers? > > Hi hadoopers, > > What is the recommended way to send configuration type information > from the job client down to the individual map and reduce processes > that are running? I'd like to be able to specify a few options that > control the behavior of these processes, but I haven't been able to > find any documentation on how to do this. > > Thanks for any help! > > Chris > > >
