hadoop-mapreduce.mapred.child.ulimit should be unlimited by default
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Key: WHIRR-490
URL: https://issues.apache.org/jira/browse/WHIRR-490
Project: Whirr
Issue Type: Bug
Components: service/hadoop
Affects Versions: 0.7.0
Environment: Hadoop Cluster on Amaazon EC2
Reporter: Jai Kumar Singh
Last week, I was struggling to run hadoop job(simple wordcount example program
comes with hadoop ) on amazon ec2. Jobs were dying saying
" Could not create the Java virtual machine ". It took me a while to figure out
that ulimit was the problem. Whirr by default assign ulimit to a constant
number but not unlimited. Setting mapred.child.java.opts to any number ( I
tried from 64mb to 4096mb on t1.micro instances to m2.4xlarge ) was throwing
error.
More details on
https://issues.apache.org/jira/browse/HADOOP-7989
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