title: How to change io.sort.mb per job?
body: <p>I am wondering if I can change the value of io.sort.mb per job? I know you can set a value for the parameter in mapred-site.xml but I want to use different values in different jobs programatically. I tried conf.setInt("io.sort.mb", someValue) but it doesn't seem to work. JVM setting has enough memory (like 2.25GB) and there is no other jobs running.</p>