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From "Aljoscha Krettek (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-9013) Document yarn.containers.vcores only being effective when adapting YARN config
Date Mon, 19 Mar 2018 20:30:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-9013?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aljoscha Krettek updated FLINK-9013:
------------------------------------
    Fix Version/s:     (was: 1.6.0)

> Document yarn.containers.vcores only being effective when adapting YARN config
> ------------------------------------------------------------------------------
>
>                 Key: FLINK-9013
>                 URL: https://issues.apache.org/jira/browse/FLINK-9013
>             Project: Flink
>          Issue Type: Improvement
>          Components: Documentation, YARN
>    Affects Versions: 1.5.0, 1.6.0
>            Reporter: Nico Kruber
>            Assignee: Nico Kruber
>            Priority: Major
>             Fix For: 1.5.0
>
>
> Even after specifying {{yarn.containers.vcores}} and having Flink request such a container
from YARN, it may not take these into account at all and return a container with 1 vcore.
> The YARN configuration needs to be adapted to take the vcores into account, e.g. by setting
the {{FairScheduler}} in {{yarn-site.xml}}:
> {code}
> <property>
>   <name>yarn.resourcemanager.scheduler.class</name>
>   <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler</value>
> </property>
> {code}
> This fact should be documented at least at the configuration parameter documentation
of  {{yarn.containers.vcores}}.



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