Stephan Ewen created FLINK-4052:
-----------------------------------
Summary: Unstable test
Key: FLINK-4052
URL: https://issues.apache.org/jira/browse/FLINK-4052
Project: Flink
Issue Type: Bug
Components: Tests
Affects Versions: 1.0.2
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Priority: Critical
Fix For: 1.1.0
The error is the following:
{code}
ConnectionUtilsTest.testReturnLocalHostAddressUsingHeuristics:59
expected:<testing-worker-linux-docker-e744e561-3361-linux-13/172.17.5.9> but
was:</127.0.0.1>
{code}
The probable cause for the failure is that the test tries to select an unused
closed port (from the ephemeral range), and then assumes that all connections
to that port fail.
If a concurrent test actually uses that port, connections to the port will
succeed.
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