Siddharth Wagle created AMBARI-3448:
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Summary: Ensure valid default values are used for mapred config
properties
Key: AMBARI-3448
URL: https://issues.apache.org/jira/browse/AMBARI-3448
Project: Ambari
Issue Type: Bug
Components: controller
Affects Versions: 1.4.1
Reporter: Siddharth Wagle
Assignee: Siddharth Wagle
Fix For: 1.4.1
To summarize, the following config properties probably need different default
values. For Ambari, we are assuming the target to be a single node cluster with
4GB RAM.
Default for a fresh HDP 2 install:
"mapreduce.map.sort.spill.percent" : "0.1"
"mapreduce.task.io.sort.mb" : "200"
"mapreduce.map.java.opts" : "-Xmx320m"
"mapreduce.map.memory.mb" : "1536"
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