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Considered to be an MVP (Minimal Viable Product), this improvement does not support the features, such as defining the scope (e.g. job manager or task manager only) and a timer. The log levels of the target logger are going to be changed cluster-wide, on the job manager leader and all the currently-registered task managers. To unset the previously-changed level, pass a null log-level argument.

Another limitation is that changing the log levels is not considered to be a persistent operation for simplicity. If a task manager is (re-)joined or a standby job manager becomes the leader, the log levels on these processes remain unchanged and only will be changed upon a next call.

Compatibility, Deprecation, and Migration Plan

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