The process ids of each individual task can be seen using jps and jconsole commands provided by java.
jconsole command on command-line interface provides a GUI screen for monitoring running tasks within java. The tasks are only visible as java virtual machine instance in the os system monitoring tool. Regards, Varad Meru ----------------------------------- Sent from my iPod On 29-Sep-2011, at 0:15, bikash sharma <[email protected]> wrote: > Hi, > Is it possible to get the process id of each task in a MapReduce job? > When I run a mapreduce job and do a monitoring in linux using ps, i just see > the id of the mapreduce job process but not its constituent map/reduce > tasks. > The use case is to monitor the resource usage of each task by using sar > utility in linux with specific process id of task. > > Thanks, > Bikash
