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From Gustavo Enrique Salazar Torres <gsala...@ime.usp.br>
Subject Re: java.lang.OutOfMemoryError: Java heap space
Date Wed, 07 Aug 2013 16:08:26 GMT
Hi Puneet:

You can try this at mapreduce config:

<property>
    <name>mapred.child.java.opts</name>
    <value>-Xmx4000m</value>
  </property>

Cheers
Gustavo




On Wed, Aug 7, 2013 at 11:43 AM, Puneet Agarwal <puagarwal@yahoo.com> wrote:

> 2013-08-07 20:07:30,119 FATAL org.apache.hadoop.mapred.Child: Error running child : java.lang.OutOfMemoryError:
Java heap space
>
> 2013-08-07 20:07:30,210 FATAL org.apache.giraph.graph.GraphMapper: uncaughtException:
OverrideExceptionHandler on thread Thread for syncLogs, msg = Java heap space, exiting...
> java.lang.OutOfMemoryError: Java heap space
>
>
> Hi All,
>
> Can someone help me with the above error. I am using Hadoop 1.0.0. and I tried increasing
the HEAP size, using following command,  but all in vain.
>
> export HADDOP_HEAP=4000
>
> So far I am using only about 200 mb big data. I want to use few GBs of data later.
>
> Please help
>
> Regards
>
> Puneet
>
> IIT Delhi
>
>

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