Naganarasimha G R created YARN-2487:
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Summary: Need to support timeout of AM When no containers are
assigned to it for a defined period
Key: YARN-2487
URL: https://issues.apache.org/jira/browse/YARN-2487
Project: Hadoop YARN
Issue Type: Improvement
Components: resourcemanager
Reporter: Naganarasimha G R
Assignee: Naganarasimha G R
There are some scenarios where AM will not get containers and indefinetely
waiting. We faced one such sceanrio which makes the applications to get hung :
Consider a cluster setup which has 2 NMS of each 8GB resource,
And 2 applications are launched in the default queue where in each AM is taking
2 GB each.
Each AM is placed in each of the NM. Now each AM is requesting for container of
7Gb mem resource .
As in each NM only 6GB resource is available both the applications are hung
forever.
To avoid such scenarios i would to propose
generic timeout feature for all AM's @ the yarn side such that if no containers
are assigned for an application for a defined period than yarn can timeout the
application attempt.
Default can be set to 0 where in RM will not timeout the app attempt and user
can set his own timeout when he submits the application
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