DavidLiu001 commented on code in PR #22241:
URL: https://github.com/apache/flink/pull/22241#discussion_r1148340558
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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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@@ -44,6 +44,8 @@ public FatalExceptionClassifier(
public boolean isFatal(Throwable err, Consumer<Exception>
throwableConsumer) {
if (validator.test(err)) {
throwableConsumer.accept(throwableMapper.apply(err));
+ return true;
+ } else {
Review Comment:
> > > Dont think we should return `false` right after validator.test is
`false` as it wont go into `chainedClassifier` check. Instead, we should return
false at the line 55.
> > > Good comment, PR was updated. A little difference,
`chainedClassifier` check includes `false` and `true`, It seems that new
"return false" is not needed.
>
> If we carry on to `chainedClassifier` check, the result is being `false`,
isn't it? so if there is nothing to check from `chainedClassifier`
(`chainedClassifier` is `null`), shouldn't we return `false`?
Good discussion. Since `chainedClassifier` is a private memeber of
FatalExceptionClassifier and when a chain is created, there is
`chainedClassifier` to be used, if `chainedClassifier` is `null`, it can cause
fatal exception. When `chainedClassifier` is `null`, do you think we should
return `false` not `true` ?
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