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From "Yesha Vora (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-7730) Add memory management configs to yarn-default
Date Wed, 10 Jan 2018 22:26:00 GMT
Yesha Vora created YARN-7730:
--------------------------------

             Summary: Add memory management configs to yarn-default
                 Key: YARN-7730
                 URL: https://issues.apache.org/jira/browse/YARN-7730
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Yesha Vora
            Priority: Minor


Add below configuration and description to yarn-defaults.xml
{code}
"yarn.nodemanager.resource.memory.enabled"
// the default value is false, we need to set to true here to enable the cgroups based memory
monitoring.


"yarn.nodemanager.resource.memory.cgroups.soft-limit-percentage"
// the default value is 90.0f, which means in memory congestion case, the container can still
keep/reserve 90% resource for its claimed value. It cannot be set to above 100 or set as negative
value.

"yarn.nodemanager.resource.memory.cgroups.swappiness"
// The percentage that memory can be swapped or not. default value is 0, which means container
memory cannot be swapped out. If not set, linux cgroup setting by default set to 60 which
means 60% of memory can potentially be swapped out when system memory is not enough.{code}



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