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From "Bibin A Chundatt (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3558) Additional containers getting reserved from RM in case of Fair scheduler
Date Thu, 28 May 2015 14:45:32 GMT

    [ https://issues.apache.org/jira/browse/YARN-3558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14563007#comment-14563007
] 

Bibin A Chundatt commented on YARN-3558:
----------------------------------------

[~sunilg]. As discussed offline i have tried the same scenarios with only single node.
In case of single node number of container reserved is equal to number of required containers.
Only 18 containers where reserved by RM. 

> Additional containers getting reserved from RM in case of Fair scheduler
> ------------------------------------------------------------------------
>
>                 Key: YARN-3558
>                 URL: https://issues.apache.org/jira/browse/YARN-3558
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler, resourcemanager
>    Affects Versions: 2.7.0
>         Environment: OS :Suse 11 Sp3
> Setup : 2 RM 2 NM
> Scheduler : Fair scheduler
>            Reporter: Bibin A Chundatt
>         Attachments: Amlog.txt, rm.log
>
>
> Submit PI job with 16 maps
> Total container expected : 16 MAPS + 1 Reduce  + 1 AM
> Total containers reserved by RM is 21
> Below set of containers are not being used for execution
> container_1430213948957_0001_01_000020
> container_1430213948957_0001_01_000019
> RM Containers reservation and states
> {code}
>  Processing container_1430213948957_0001_01_000001 of type START
>  Processing container_1430213948957_0001_01_000001 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000001 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000002 of type START
>  Processing container_1430213948957_0001_01_000003 of type START
>  Processing container_1430213948957_0001_01_000002 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000003 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000004 of type START
>  Processing container_1430213948957_0001_01_000005 of type START
>  Processing container_1430213948957_0001_01_000004 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000005 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000002 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000004 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000006 of type RESERVED
>  Processing container_1430213948957_0001_01_000003 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000005 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000007 of type START
>  Processing container_1430213948957_0001_01_000007 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000007 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000008 of type RESERVED
>  Processing container_1430213948957_0001_01_000002 of type FINISHED
>  Processing container_1430213948957_0001_01_000006 of type START
>  Processing container_1430213948957_0001_01_000006 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000006 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000004 of type FINISHED
>  Processing container_1430213948957_0001_01_000009 of type START
>  Processing container_1430213948957_0001_01_000009 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000009 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000010 of type RESERVED
>  Processing container_1430213948957_0001_01_000003 of type FINISHED
>  Processing container_1430213948957_0001_01_000008 of type START
>  Processing container_1430213948957_0001_01_000008 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000008 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000005 of type FINISHED
>  Processing container_1430213948957_0001_01_000011 of type START
>  Processing container_1430213948957_0001_01_000011 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000011 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000007 of type FINISHED
>  Processing container_1430213948957_0001_01_000012 of type START
>  Processing container_1430213948957_0001_01_000012 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000012 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000013 of type RESERVED
>  Processing container_1430213948957_0001_01_000006 of type FINISHED
>  Processing container_1430213948957_0001_01_000010 of type START
>  Processing container_1430213948957_0001_01_000010 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000010 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000009 of type FINISHED
>  Processing container_1430213948957_0001_01_000014 of type START
>  Processing container_1430213948957_0001_01_000014 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000014 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000015 of type RESERVED
>  Processing container_1430213948957_0001_01_000008 of type FINISHED
>  Processing container_1430213948957_0001_01_000013 of type START
>  Processing container_1430213948957_0001_01_000016 of type RESERVED
>  Processing container_1430213948957_0001_01_000013 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000013 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000011 of type FINISHED
>  Processing container_1430213948957_0001_01_000016 of type START
>  Processing container_1430213948957_0001_01_000010 of type FINISHED
>  Processing container_1430213948957_0001_01_000015 of type START
>  Processing container_1430213948957_0001_01_000016 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000015 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000016 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000012 of type FINISHED
>  Processing container_1430213948957_0001_01_000017 of type START
>  Processing container_1430213948957_0001_01_000015 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000014 of type FINISHED
>  Processing container_1430213948957_0001_01_000018 of type START
>  Processing container_1430213948957_0001_01_000017 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000018 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000017 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000019 of type RESERVED
>  Processing container_1430213948957_0001_01_000020 of type RESERVED
>  Processing container_1430213948957_0001_01_000018 of type RELEASED
>  Processing container_1430213948957_0001_01_000015 of type FINISHED
>  Processing container_1430213948957_0001_01_000013 of type FINISHED
>  Processing container_1430213948957_0001_01_000016 of type FINISHED
>  Processing container_1430213948957_0001_01_000017 of type FINISHED
>  Processing container_1430213948957_0001_01_000021 of type START
>  Processing container_1430213948957_0001_01_000021 of type ACQUIRED
>  Processing container_1430213948957_0001_01_000021 of type LAUNCHED
>  Processing container_1430213948957_0001_01_000021 of type FINISHED
>  Processing container_1430213948957_0001_01_000001 of type FINISHED
> {code}
> AM assignment to Nodes
> {code}
> ---------- Find in open document(s) ----------
> Assigning container container_1430213948957_0001_01_000002 with priority 20 to NM <NODE1>:64318
> Assigning container container_1430213948957_0001_01_000003 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000004 with priority 20 to NM <NODE1>:64318
> Assigning container container_1430213948957_0001_01_000005 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000007 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000006 with priority 20 to NM <NODE1>:64318
> Assigning container container_1430213948957_0001_01_000009 with priority 20 to NM <NODE1>:64318
> Assigning container container_1430213948957_0001_01_000008 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000011 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000012 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000010 with priority 20 to NM <NODE1>:64318
> Assigning container container_1430213948957_0001_01_000014 with priority 20 to NM <NODE1>:64318
> Assigning container container_1430213948957_0001_01_000013 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000016 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000015 with priority 20 to NM <NODE1>:64318
> Assigning container container_1430213948957_0001_01_000017 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000018 with priority 20 to NM <NODE2>:64318
> Assigning container container_1430213948957_0001_01_000021 with priority 10 to NM <NODE2>:64318
> 18 occurrences have been found.
> Output completed (0 sec consumed)
> {code}



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