jiajunwang commented on a change in pull request #1460:
URL: https://github.com/apache/helix/pull/1460#discussion_r504343539
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File path:
helix-core/src/main/java/org/apache/helix/messaging/handling/AsyncCallbackService.java
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@@ -62,15 +62,6 @@ void verifyMessage(Message message) {
throw new HelixException(errorMsg);
}
Review comment:
Alternatively, if the exception is not graceful, we can return null when
createHandler() is triggered. This is much better than returning a handler that
does nothing (but still consume system resources).
Of course, the callers of createHandler() need to be improved to tolerate
the null return value.
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