Hi Kishore, 50010 is the datanode port. Does your lsof indicate that the sockets are in CLOSE_WAIT? I had come across an issue like this where that was a symptom.
-Sandy On Wed, Mar 20, 2013 at 4:24 AM, Krishna Kishore Bonagiri < write2kish...@gmail.com> wrote: > Hi, > > I am running a date command with YARN's distributed shell example in a > loop of 1000 times in this way: > > yarn jar > /home/kbonagir/yarn/hadoop-2.0.0-alpha/share/hadoop/mapreduce/hadoop-yarn-applications-distributedshell-2.0.0-alpha.jar > org.apache.hadoop.yarn.applications.distributedshell.Client --jar > /home/kbonagir/yarn/hadoop-2.0.0-alpha/share/hadoop/mapreduce/hadoop-yarn-applications-distributedshell-2.0.0-alpha.jar > --shell_command date --num_containers 2 > > > Around 730th time or so, I am getting an error in node manager's log > saying that it failed to launch container because there are "Too many open > files" and when I observe through lsof command,I find that there is one > instance of this kind of file is left for each run of Application Master, > and it kept growing as I am running it in loop. > > node1:44871->node1:50010 > > Is this a known issue? Or am I missing doing something? Please help. > > Note: I am working on hadoop--2.0.0-alpha > > Thanks, > Kishore >
