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https://issues.apache.org/jira/browse/FLINK-15903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17029905#comment-17029905
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Nico Kruber commented on FLINK-15903:
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A random port may fail every so often, a fixed port is probably safer.
Or: select a randomly available(!) port for the tests; since you're not
actually browsing the web UI and need to know the port, this may also be an
option.
> Make REST port configurable in end to end test scripts
> ------------------------------------------------------
>
> Key: FLINK-15903
> URL: https://issues.apache.org/jira/browse/FLINK-15903
> Project: Flink
> Issue Type: Improvement
> Components: Test Infrastructure
> Reporter: Robert Metzger
> Assignee: Robert Metzger
> Priority: Major
>
> The end to end tests have the default port (8081) hardcoded. Unfortunately,
> my employer has asked me to run a daemon on my system, which uses port 8081.
> This makes executing end to end tests on my machine a cumbersome experience.
> With this ticket, I propose to make the port configurable through an
> environment variable.
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