sunhaibotb commented on a change in pull request #10151: [FLINK-14231] Handle
the processing-time timers before closing operator to properly support endInput
URL: https://github.com/apache/flink/pull/10151#discussion_r349979144
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File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java
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@@ -205,6 +206,8 @@
private Long syncSavepointId = null;
+ private final Map<StreamOperator<?>, ProcessingTimeServiceImpl>
processingTimeServices;
Review comment:
> map value: It's better to specify an interface, not a concrete
implementation to depend on it less.
The methods `quiesce` and `getTimersDoneFutureAfterQuiescing` need to be
added in the processing time service, but the `ProcessingTimeService` interafce
is user-oriented, so we don't want to change it due to the runtime needs. On
the other hand, `StreamTask` understands `ProcessingTimeServiceImpl` because it
uses `ProcessingTimeServiceImpl` to build instances in
`#getProcessingTimeService`. So it should be possible to use the concrete
implementation here.
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