Yan Xu created MESOS-7098:
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Summary: Added something like `--undefok` in Mesos flags
Key: MESOS-7098
URL: https://issues.apache.org/jira/browse/MESOS-7098
Project: Mesos
Issue Type: Improvement
Components: stout
Reporter: Yan Xu
Mesos flags currently has an {{unknowns}} argument in the {{load}} method to
ignore unknown flags:
https://github.com/apache/mesos/blob/c2388a511c775dd6f392961b06fd7738bf051dbc/3rdparty/stout/include/stout/flags/flags.hpp#L74-L86
However to use it you can have to programmatically set it before producing a
binary. Plus it's makes all unknown flags OK.
This makes it hard to use for operators who in the case upgrading to a new
version of binary that stops supporting a removed flag.
Gflags supports a {{--undefok=flagname,flagname}} flag and we can do something
similar.
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