[GitHub] flink issue #5886: [FLINK-9230][test] harden WebFrontendITCase#testStopYarn(...

[sihuazhou]

Github user sihuazhou commented on the issue:

    https://github.com/apache/flink/pull/5886
  
    another instance https://travis-ci.org/apache/flink/jobs/369925642...


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