Till Rohrmann created FLINK-7974:
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Summary: AbstractServerBase#shutdown does not wait for shutdown
completion
Key: FLINK-7974
URL: https://issues.apache.org/jira/browse/FLINK-7974
Project: Flink
Issue Type: Bug
Components: Queryable State
Affects Versions: 1.4.0
Reporter: Till Rohrmann
Priority: Critical
The {{AbstractServerBase}} does not wait for the completion of its shutdown
when calling {{AbstractServerBase#shutdown}}. This is problematic since it
leads to resource leaks and instable tests such as the {{AbstractServerTest}}.
I propose to let the {{AbstractServerBase#shutdown}} return a termination
future which is completed upon shutdown completion.
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