Hi Guys,
Actually i knew that i can do that but i was wondering if that is it
possible to have a hadoop-site.xml config file different on each machine ?
Can i specify on my first machine to have 2 map tasktracker with 200Mo each
and on my second machine 1 map with only 80 mo. all of them will be
connected to the same jobtracker ?
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>
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