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Posted to dev@whirr.apache.org by "Andrei Savu (Updated) (JIRA)" <ji...@apache.org> on 2012/01/30 10:09:10 UTC
[jira] [Updated] (WHIRR-490) hadoop-mapreduce.mapred.child.ulimit
should be unlimited by default
[ https://issues.apache.org/jira/browse/WHIRR-490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrei Savu updated WHIRR-490:
------------------------------
Fix Version/s: 0.7.1
Assignee: Andrei Savu
Good catch! Scheduling this for 0.7.1. Thanks!
> hadoop-mapreduce.mapred.child.ulimit should be unlimited by default
> -------------------------------------------------------------------
>
> 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
> Assignee: Andrei Savu
> Fix For: 0.7.1
>
>
> 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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