Github user vijikarthi commented on the issue: https://github.com/apache/flink/pull/2275 @mxm - Thanks for your feedback and here is my response to some of your comments. - Do we need to run all the Yarn tests normally and secured? We already have problems with our test execution time. Perhaps we could have one dedicated test for secure setups and disable the other ones by default to run them manually if needed. [Vijay] - Yes, it is not essential to run the secure test case all the time as it consumes more cycles. Do you have any suggestion on controlling this through some mvn/surefire plugin configuration? - The testing code seems overly complicated using the custom JUnit Runner. I think we could achieve the same with @BeforeClass and @AfterClass methods in the secure IT cases. [Vijay] - It is little overhead but works out well with minimal changes to the code. We could revisit and make any changes if it creates any issues. - There is no dedicated test for the SecurityContext and the JaasConfiguration classes [Vijay] - Yes, will add UT for those classes. - It would be nice to add some documentation to the configuration web page. [Vijay] - I believe you are referring to the https://ci.apache.org/projects/flink/flink-docs-master/setup/config.html. If so, yes it certainly helps and I will be happy to add the details but I don't have access to edit the page. - We should throw exceptions if the secure configuration is not complete instead of falling back to non-authenticated execution for either Hadoop or the Jaas configuration. Otherwise, users might end up with a partly secure environment. [Vijay] - Yes, will add the validation logic
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