Krishna Kishore Bonagiri created YARN-492:
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Summary: Too many open files error to launch a container
Key: YARN-492
URL: https://issues.apache.org/jira/browse/YARN-492
Project: Hadoop YARN
Issue Type: Bug
Affects Versions: 2.0.0-alpha
Environment: RedHat Linux
Reporter: Krishna Kishore Bonagiri
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
Thanks,
Kishore
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