Yao Zhang created FLINK-32740:
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Summary: Introduce literal null value for flink-conf.yaml
Key: FLINK-32740
URL: https://issues.apache.org/jira/browse/FLINK-32740
Project: Flink
Issue Type: Improvement
Components: API / Core
Affects Versions: 1.15.4
Reporter: Yao Zhang
Hi community,
Currently in flink-conf.yaml we only consider simplified YAML syntax like key
value pairs. And it might not be the right timing to indroduce YAML parser. As
[FLINK-23620 |https://issues.apache.org/jira/browse/FLINK-23620] has been
stated, there might be some keys that violate the YAML naming conventions.
The current situation is, if we want to unset the value (or set the value as
its default), what we could do is to remove the key value pair completely or
leave the value blank (e.g. `rest.port: `). It might be inconvenient or less
readable for conf file that controlled by other applications.
So is it necessary to add some special literal values that will be translated
to the real null value? For YAML we usually see ~, null or empty value as null
value. If necessary I would like to do this.
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