You can configure number of tasktracker children and the max heap size in
hadoop-site.xml
<property>
<name>mapred.tasktracker.tasks.maximum</name>
<value>4</value>
</property>
<property>
<name>mapred.child.java.opts</name>
<value>-Xmx80m</value>
</property>-- View this message in context: http://www.nabble.com/Hadoop-on-different-hardware-tf4081558.html#a11608407 Sent from the Hadoop Users mailing list archive at Nabble.com.
