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Posted to issues@flink.apache.org by yanghua <gi...@git.apache.org> on 2018/07/04 09:00:16 UTC

[GitHub] flink pull request #6245: [FLINK-9718][scala-shell]. Add enviroment variable...

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

    https://github.com/apache/flink/pull/6245#discussion_r200056172
  
    --- Diff: flink-scala-shell/start-script/start-scala-shell.sh ---
    @@ -19,6 +19,9 @@
     
     # from scala-lang 2.10.4
     
    +# Uncomment the following line to enable remote debug
    +# export FLINK_SCALA_SHELL_JAVA_OPTS="-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005"
    --- End diff --
    
    I know there is not a env variable named "FLINK_SCALA_SHELL_JAVA_OPTS" before you create. I said, it is commented, but you always used in "java" command later.
    About the bool flag, I mean we could add a flag named "remoteDebugMode" to control the "export" operation. 
    
    for example : 
    
    ```
    if $remoteDebugMode then 
    export FLINK_SCALA_SHELL_JAVA_OPTS="-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005"
    fi
    ```
    
    It's better than "comment" & "uncomment". Why do you think it hides the details of remote debug info?


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