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https://issues.apache.org/jira/browse/MAHOUT-1766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15223380#comment-15223380
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Suneel Marthi commented on MAHOUT-1766:
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I would go with documenting this in README
> Increase default PermGen size for spark-shell
> ---------------------------------------------
>
> Key: MAHOUT-1766
> URL: https://issues.apache.org/jira/browse/MAHOUT-1766
> Project: Mahout
> Issue Type: Improvement
> Components: Mahout spark shell
> Affects Versions: 0.11.0
> Reporter: Sergey Tryuber
> Assignee: Andrew Musselman
> Fix For: 0.12.0
>
>
> Mahout spark-shell is run with default perm gen size (64MB). Taking into
> account that it depends on lots of external jars and the whole count of used
> Java classes is very large, we constantly observe spontaneous corresponding
> OOM exceptions.
> A hot fix from our side is to modify envelope bash script (added
> -XX:PermSize=512m):
> {code}
> "$JAVA" $JAVA_HEAP_MAX -XX:PermSize=512m $MAHOUT_OPTS -classpath "$CLASSPATH"
> "org.apache.mahout.sparkbindings.shell.Main" $@
> {code}
> Of course, more elegant solution is needed. After the applied fix, the errors
> had gone.
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