Srimanth Gunturi created AMBARI-5400:
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Summary: Inefficient default Map heap size values set by Ambari
Key: AMBARI-5400
URL: https://issues.apache.org/jira/browse/AMBARI-5400
Project: Ambari
Issue Type: Task
Components: client
Affects Versions: 1.5.1
Reporter: Srimanth Gunturi
Assignee: Srimanth Gunturi
Fix For: 1.5.1
Currently Ambari calculates the number of containers per node, and the size of
each container. This size is used to set the java heap size for Maps and
Reduces.
Ambari sets the Map heap size using the following formula - which is
inefficient usage of resources.
{code}
map_memory = math.floor(container_ram / 2)
{code}
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