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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-8328) Pull Yarn ApplicationStatus polling out of YarnClusterClient
Date Wed, 10 Jan 2018 13:25:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-8328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16320221#comment-16320221
] 

ASF GitHub Bot commented on FLINK-8328:
---------------------------------------

Github user tillrohrmann commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5215#discussion_r160674936
  
    --- Diff: flink-yarn/src/main/java/org/apache/flink/yarn/cli/FlinkYarnSessionCli.java
---
    @@ -717,7 +645,26 @@ public int run(
     				yarnCluster.waitForClusterToBeReady();
     				yarnCluster.disconnect();
     			} else {
    -				runInteractiveCli(yarnCluster, acceptInteractiveInput);
    +
    +				ScheduledThreadPoolExecutor scheduledExecutorService = new ScheduledThreadPoolExecutor(1);
    +
    +				try (YarnApplicationStatusMonitor yarnApplicationStatusMonitor = new YarnApplicationStatusMonitor(
    +						yarnDescriptor.getYarnClient(),
    +						yarnCluster.getApplicationId(),
    +						new ScheduledExecutorServiceAdapter(scheduledExecutorService))){
    +					runInteractiveCli(
    +						yarnCluster,
    +						yarnApplicationStatusMonitor,
    +						acceptInteractiveInput);
    --- End diff --
    
    Yes it is. In one of my later PRs, I removed this code duplication. Therefore I leave
it like this for the moment.


> Pull Yarn ApplicationStatus polling out of YarnClusterClient
> ------------------------------------------------------------
>
>                 Key: FLINK-8328
>                 URL: https://issues.apache.org/jira/browse/FLINK-8328
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Client
>    Affects Versions: 1.5.0
>            Reporter: Till Rohrmann
>            Assignee: Till Rohrmann
>              Labels: flip-6
>             Fix For: 1.5.0
>
>
> In order to make the {{FlinkYarnSessionCli}} work with Flip-6, we have to pull the Yarn
{{ApplicationStatus}} polling out of the {{YarnClusterClient}}. I propose to introduce a dedicated
{{YarnApplicationStatusMonitor}}. This has also the benefit of separating concerns better.



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