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-----Original Message-----
From: Naganarasimha G R (JIRA) [mailto:[email protected]] 
Sent: Monday, September 01, 2014 7:39 PM
To: [email protected]
Subject: [jira] [Created] (YARN-2487) Need to support timeout of AM When no 
containers are assigned to it for a defined period

Naganarasimha G R created YARN-2487:
---------------------------------------

             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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