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Haibo Sun commented on FLINK-13516: ----------------------------------- The failure of the case is due to the failure of authentication when the yarn client requests access authorization of resource manager, and subsequent retries lead to test timeout. New encryption types of aes128-cts-hmac-sha256-128 and aes256-cts-hmac-sha384-192 (for Kerberos 5) enabled by default were added in Java 11, while the current version of MiniKdc used by Flink does not support these encryption types and does not work well when these encryption types are enabled, which results in the authentication failure. There are two solutions to fix this issue, one is to add a configuration template named "minikdc-krb5.conf" in the test resource directory, and explicitly set default_tkt_enctypes and default_tgs_enctypes to use aes128-cts-hmac-sha1-96 in the template file, the other is to bump MiniKdc to the latest version 3.2.0 (I tested that this version has solved this problem). I've tested both solutions on my local machine, and all tests that depend on MiniKdc work well on Java 8 and Java 11. Considering that the version of MiniKdc will be updated sooner or later, I suggest to use the second solution. [~Zentol], what do you think? > YARNSessionFIFOSecuredITCase fails on Java 11 > --------------------------------------------- > > Key: FLINK-13516 > URL: https://issues.apache.org/jira/browse/FLINK-13516 > Project: Flink > Issue Type: Sub-task > Components: Deployment / YARN, Tests > Reporter: Chesnay Schepler > Assignee: Haibo Sun > Priority: Major > Fix For: 1.10.0 > > > {{YARNSessionFIFOSecuredITCase#testDetachedMode}} times out when run on Java > 11. This may be related to security changes in Java 11. -- This message was sent by Atlassian Jira (v8.3.2#803003)