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From "Konstantinos Karanasos (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-8112) Fix min cardinality check for same source and target tags in intra-app constraints
Date Tue, 03 Apr 2018 15:37:00 GMT

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

Konstantinos Karanasos updated YARN-8112:
-----------------------------------------
    Summary: Fix min cardinality check for same source and target tags in intra-app constraints
 (was: Fix min cardinality check when source==target tag in intra-app constraints)

> Fix min cardinality check for same source and target tags in intra-app 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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