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 <[email protected]> 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
>
>
