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Posted to user@nutch.apache.org by Sunil Kumar PK <pk...@gmail.com> on 2006/09/30 06:56:37 UTC

Java heap space

Hi,

When running the "dfs -ls" command in the node I am  getting the following
error,

#bin/hadoop dfs -ls
Exception in thread "Client connection to 127.0.0.1:9000"
java.lang.OutOfMemoryError: Java heap space

Experts, please help

Thanks in advance
Sunil

RE: Java heap space

Posted by Vladimir Olenin <VO...@cihi.ca>.

Unless someone has already answered that, you need to increase heap size
allocated for JVM. Not sure how to pass JVM flags to Hadoop, but
positive it must be somewhere on the website. You need to pass '-Xms64M
-Xmx128M' for example ('-Xms - minimum heap size, the other para -
maximum). See Java docs for details.

-----Original Message-----
From: Sunil Kumar PK [mailto:pksunilpk@gmail.com] 
Sent: Saturday, September 30, 2006 12:57 AM
To: nutch-user@lucene.apache.org
Subject: Java heap space

Hi,

When running the "dfs -ls" command in the node I am  getting the
following error,

#bin/hadoop dfs -ls
Exception in thread "Client connection to 127.0.0.1:9000"
java.lang.OutOfMemoryError: Java heap space

Experts, please help

Thanks in advance
Sunil