Konstantin Knauf created FLINK-21844:
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Summary: Do not auto-configure maxParallelism when setting
"scheduler-mode: reactive"
Key: FLINK-21844
URL: https://issues.apache.org/jira/browse/FLINK-21844
Project: Flink
Issue Type: Sub-task
Components: Runtime / Coordination
Reporter: Konstantin Knauf
I believe we should not automatically change the maxParallelism when the
"scheduler-mode" is set to "reactive", because:
* it magically breaks savepoint compatibility, when you switch between default
and reactive scheduler mode
* the maximum parallelism is an orthogonal concern that in my opinion should
not be mixed with the scheduler mode. The reactive scheduler should respect the
maxParallelism, but it should not set change its default value.
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