If you need to set the java_options for mem., you can do this via configure in your MR job.
-----Original Message----- From: Fernando Padilla [mailto:f...@alum.mit.edu] Sent: Wednesday, July 22, 2009 9:11 AM To: common-user@hadoop.apache.org Subject: best way to set memory So.. I want to have different memory profiles for NameNode/DataNode/JobTracker/TaskTracker. But it looks like I only have one environment variable to modify, HADOOP_HEAPSIZE, but I might be running more than one on a single box/deployment/conf directory. Is there a proper way to set the memory for each kind of server? Or has an issue been created to document this bug/deficiency??
