I tried various range values. I'm not even seeing the map method and the recordreader methods. On Feb 7, 2013 3:58 AM, "java8964 java8964" <[email protected]> wrote:
> What range you gave it for mapred.task.profile.maps? And you sure your > mapper will invoke the methods you expect in the traces? > > Yong > > ------------------------------ > Date: Wed, 6 Feb 2013 23:50:08 +0200 > Subject: Profiling the Mapper using hprof on Hadoop 0.20.205 > From: [email protected] > To: [email protected] > > Hi, > I wish to profile my mapper, so I've set the properties > mapred.task.profile and mapred.task.profile.maps in mapred-site.xml. > At the end of the job I'm getting a profile.out file, however I think > it's not the profile of the mapper... none of the methods I use in the > mapper appear on any of the traces. Am I doing something wrong? > I'm using a small cluster with 4 machines. > > Thanks, > Yaron >
