hongfei zhang created FLINK-28635:
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Summary: HybridSourceReader availabilityFuture always completed
Key: FLINK-28635
URL: https://issues.apache.org/jira/browse/FLINK-28635
Project: Flink
Issue Type: Bug
Components: Connectors / Common
Affects Versions: 1.15.1, 1.15.0
Reporter: hongfei zhang
HybridSourceReader may contains multi SourceReader.
AvailabilityFuture is variable in some reader like kafka, but
AvailabilityFuture is not always changing in HybridSourceReader.
This leads to a problem:
* task busy time is calculated based on idle time
* idle time is based on operator AvailabilityFuture
* When the idle time is constant, it will always be busy
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