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https://issues.apache.org/jira/browse/BEAM-4130?focusedWorklogId=152377&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-152377
 ]

ASF GitHub Bot logged work on BEAM-4130:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 08/Oct/18 19:49
            Start Date: 08/Oct/18 19:49
    Worklog Time Spent: 10m 
      Work Description: angoenka commented on a change in pull request #6607: 
[BEAM-4130] Use port 0 to pick dynamic port-BugFix
URL: https://github.com/apache/beam/pull/6607#discussion_r223478440
 
 

 ##########
 File path: 
runners/flink/src/main/java/org/apache/beam/runners/flink/FlinkJobServerDriver.java
 ##########
 @@ -201,7 +201,7 @@ public void stop() {
   private GrpcFnServer<InMemoryJobService> createJobServer() throws 
IOException {
     InMemoryJobService service = createJobService();
     GrpcFnServer<InMemoryJobService> jobServiceGrpcFnServer;
-    if (Strings.isNullOrEmpty(configuration.host)) {
+    if (configuration.port == 0) {
 
 Review comment:
   This makes the behavior less consistent.
   Example scenarios:
   When host=null : JobPort Dynamic, ArtifactPort Dynamic
   When host=localhost: JobPort 8099, ArtifactPort  8098
   When host=localhost, jobPort=0: JobPort dynamic, ArtifactPort  8098
   ....
   Just checking if the JobPort is 0 will remove this confusion

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 152377)
    Time Spent: 10h 40m  (was: 10.5h)

> Portable Flink runner JobService entry point in a Docker container
> ------------------------------------------------------------------
>
>                 Key: BEAM-4130
>                 URL: https://issues.apache.org/jira/browse/BEAM-4130
>             Project: Beam
>          Issue Type: New Feature
>          Components: runner-flink
>            Reporter: Ben Sidhom
>            Assignee: Maximilian Michels
>            Priority: Minor
>             Fix For: 2.7.0
>
>          Time Spent: 10h 40m
>  Remaining Estimate: 0h
>
> The portable Flink runner exists as a Job Service that runs somewhere. We 
> need a main entry point that itself spins up the job service (and artifact 
> staging service). The main program itself should be packaged into an uberjar 
> such that it can be run locally or submitted to a Flink deployment via `flink 
> run`.



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