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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-8112) Relax cardinality check for intra-app affinity placement constraints
Date Tue, 03 Apr 2018 08:00:02 GMT

     [ https://issues.apache.org/jira/browse/YARN-8112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Weiwei Yang updated YARN-8112:
------------------------------
    Description: 
Currently following PC doesn't work 
{code:java}
-placement_spec zk=3,IN,NODE,zk
-placement_spec zk=1,IN,NODE,zk
{code}
Expectation: place 3/1 zk containers in any node of the cluster.

This is because when we do cardinality check, PC cannot be satisfied as there is no "zk" tag
placed on any node. But this is a very common user-case, hence we need to support.

  was:
Currently following PC doesn't work

 
{code:java}
-placement_spec zk=3,IN,NODE,zk
-placement_spec zk=1,IN,NODE,zk
{code}
 

Expectation: place 3/1 zk containers in any node of the cluster.

This is because when we do cardinality check, PC cannot be satisfied as there is no "zk" tag
placed on any node. But this is a very common user-case, hence we need to support.


> Relax cardinality check for intra-app affinity placement constraints
> --------------------------------------------------------------------
>
>                 Key: YARN-8112
>                 URL: https://issues.apache.org/jira/browse/YARN-8112
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Weiwei Yang
>            Priority: Major
>
> Currently following PC doesn't work 
> {code:java}
> -placement_spec zk=3,IN,NODE,zk
> -placement_spec zk=1,IN,NODE,zk
> {code}
> Expectation: place 3/1 zk containers in any node of the cluster.
> This is because when we do cardinality check, PC cannot be satisfied as there is no "zk"
tag placed on any node. But this is a very common user-case, hence we need to support.



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