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List:       hadoop-user
Subject:    RE: child JVM heap space
From:       "Devaraj Das" <ddas () yahoo-inc ! com>
Date:       2007-05-14 11:16:18
Message-ID: 00ae01c79617$9fcdb020$dc21500a () ds ! corp ! yahoo ! com
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You can try tweaking the value of the config item mapred.child.java.opts.
For instance, if you want the child JVM to have a heap size of 512 MB, set
the value of the config item to -Xmx512m.

-----Original Message-----
From: Mathijs Homminga [mailto:mathijs.homminga@knowlogy.nl] 
Sent: Monday, May 14, 2007 4:29 PM
To: hadoop-user@lucene.apache.org
Subject: child JVM heap space

Hi all,

How can I increase the maximum heap space of the child JVM's spawned by the
task tracker?
(I get 'java.lang.OutOfMemoryError: Java heap space' errors in my map tasks)

Thanks!
Mathijs Homminga

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mathijs.homminga@knowlogy.nl
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