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https://issues.apache.org/jira/browse/FLINK-5903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15900810#comment-15900810
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ASF GitHub Bot commented on FLINK-5903:
---------------------------------------
Github user WangTaoTheTonic commented on a diff in the pull request:
https://github.com/apache/flink/pull/3408#discussion_r104855322
--- Diff:
flink-yarn/src/main/java/org/apache/flink/yarn/cli/FlinkYarnSessionCli.java ---
@@ -317,6 +319,10 @@ public AbstractYarnClusterDescriptor
createDescriptor(String defaultApplicationN
if (cmd.hasOption(SLOTS.getOpt())) {
int slots =
Integer.valueOf(cmd.getOptionValue(SLOTS.getOpt()));
yarnClusterDescriptor.setTaskManagerSlots(slots);
+ } else if (config.containsKey(ConfigConstants.YARN_VCORES)) {
--- End diff --
And in document, there still has introduction of YARN_VCORES.
```
yarn.containers.vcores The number of virtual cores (vcores) per YARN
container. By default, the
number of vcores is set to the number of slots per TaskManager, if set, or
to 1, otherwise.
```
> taskmanager.numberOfTaskSlots and yarn.containers.vcores did not work well in
> YARN mode
> ---------------------------------------------------------------------------------------
>
> Key: FLINK-5903
> URL: https://issues.apache.org/jira/browse/FLINK-5903
> Project: Flink
> Issue Type: Bug
> Components: YARN
> Reporter: Tao Wang
> Assignee: Tao Wang
> Attachments: set taskmanager.numberOfTaskSlots to 6.JPG, set
> yarn.container.vcores to 5_JM.JPG, set yarn.container.vcores to 5_RM.JPG
>
>
> Now Flink did not respect taskmanager.numberOfTaskSlots and
> yarn.containers.vcores in flink-conf.yaml, but only -s parameter in CLI.
> Details is that taskmanager.numberOfTaskSlots is not working in anyway
> andyarn.containers.vcores is only used in requesting container(TM) resources
> but not aware to TM, which means TM will always think it has default(1) Slots
> if -s is not configured.
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