Hello,

can you clarify one small thing for me: Do you want to access this parameter when you define the plan (aka when you call methods on the StreamExecutionEnvironment or DataStream instances)
or from within your functions/operators?

Regards,
Chesnay Schepler


On 12.12.2016 14:21, Till Rohrmann wrote:

Hi Shannon,

have you tried accessing the environment variables via |System.getenv()|? This should give you a map of string-string key value pairs where the key is the environment variable name.

If your values are not set in the returned map, then this indicates a bug in Flink and it would be great if you could open a JIRA issue.

Cheers,
Till

​

On Fri, Dec 9, 2016 at 7:33 PM, Shannon Carey <sca...@expedia.com <mailto:sca...@expedia.com>> wrote:

    This thread
    
http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/passing-environment-variables-to-flink-program-td3337.html
    
<http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/passing-environment-variables-to-flink-program-td3337.html>
    describes the impetus for the addition of yarn.taskmanager.env.

    I have configured a value within yarn.taskmanager.env, and I see
    it appearing in the Flink web UI in the list underneath Job
    Manager -> Configuration. However, I can't figure out how to
    retrieve the value from within a Flink job. It doesn't appear in
    the environment, the system properties, or my ParameterTool
    instance, and I can't figure out how I would get to it via the
    StreamExecutionEnvironment. Can anyone point me in the right
    direction?

    All I want to do is inform my Flink jobs which environment they're
    running on, so that programmers don't have to specify the
    environment as a job parameter every time they run it. I also see
    that there is a "env.java.opts" configuration… does that work in
    YARN apps (would my jobs be able to see it?)

    Thanks!
    Shannon



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