Hey Henning, What version of Hadoop are you running, and can we have a dumbed down sample to reproduce?
On Thu, Oct 27, 2011 at 3:28 PM, Henning Blohm <henning.bl...@zfabrik.de> wrote: > Hi, > > found that several people have run into this issue, but I was not able to > find a solution yet. > > We have reduce tasks that leave a hanging "child" process. The > implementation uses a lot of third party stuff and leave Timer threads > running (as you can readily see in thread dumps). Which is bad style - no > doubt. But eventually we don't really care - when the reduce is done, its > done and the process should be really just killed rather than hanging around > and eventually impacting the cluster. > > Is there a way to force killing of child processes, e.g. based on job > configuration? > > Thanks, > Henning > -- Harsh J
