Xintong Song created FLINK-16563:
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Summary: CommandLineParser should fail with explicit error message
when parsing recognized arguments.
Key: FLINK-16563
URL: https://issues.apache.org/jira/browse/FLINK-16563
Project: Flink
Issue Type: Improvement
Components: Runtime / Configuration
Affects Versions: 1.10.0
Reporter: Xintong Song
Fix For: 1.11.0
Currently, {{CommandLineParser}} will stop parsing silently if it meets an
unrecognized option, leaving the remaining tokens to "args" rather than
"options".
This sometimes lead to problems due to absence of subsequence options, and the
error messages do not point to the true root cause.
[Example|[http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Flink-1-10-container-memory-configuration-with-Mesos-td33594.html]]
reported in the user ML.
I've checked and it seems that the "args" generated by {{CommandLineParser }}is
not really used anywhere. Therefore, I propose to make the parser fail fast
with explicit error message at unrecognized tokens.
The proposed changes are basically as follows:
* In {{CommandLineParser#parse}}, call {{DefaultParser#parse}} with the
argument {{stopAtNonOption}} set to {{false}}.
* Remove args from {{ClusterConfiguration}} and its sub-classes.
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