dannycranmer commented on code in PR #22241:
URL: https://github.com/apache/flink/pull/22241#discussion_r1150564908
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flink-connectors/flink-connector-base/src/main/java/org/apache/flink/connector/base/sink/throwable/FatalExceptionClassifier.java:
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@@ -44,13 +44,13 @@ public FatalExceptionClassifier(
public boolean isFatal(Throwable err, Consumer<Exception>
throwableConsumer) {
if (validator.test(err)) {
throwableConsumer.accept(throwableMapper.apply(err));
- return false;
+ return true;
Review Comment:
@DavidLiu001 thanks for the PR but this change is very dangerous as-is,
since we are inverting the semantics of the code. This is not a backward
compatible change. Instead of changing this, can we 1/ `@Deprecate` the
existing implementation and 2/ introduce new code that is cleaner. We can
remove the deprecated version in a future Flink version.
Side comment I am concerned that no tests failed with this! Seems there is a
gap in the unit tests. Can you please add a test for this or raise a Jira to
cover that?
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