Zakelly commented on a change in pull request #16341:
URL: https://github.com/apache/flink/pull/16341#discussion_r664210116
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/taskexecutor/TaskExecutor.java
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@@ -669,13 +677,18 @@ private void stopTaskExecutorServices() throws Exception {
taskInformation.getJobVertexId(),
tdd.getSubtaskIndex());
+ final StateChangelogStorage<?> changelogStorage =
+ changelogStoragesManager.stateChangelogStorageForJob(
+ jobId, jobInformation.getJobConfiguration());
Review comment:
I agree that we could add a datastream API for
```STATE_CHANGE_LOG_STORAGE```. We could do this later when we have several
implementation of storage.
However, I prefer make another API instead of
```enableChangelogStateBackend("memory")```. It's not user-friendly to make
user know the storage shotcut name before using changelog, especially we may
have only one storage for production in most cases.
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