david-streamlio commented on a change in pull request #10370:
URL: https://github.com/apache/pulsar/pull/10370#discussion_r620550371
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File path:
pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/JavaInstanceRunnable.java
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@@ -328,7 +342,8 @@ private void processResult(Record srcRecord,
srcRecord.fail();
} else {
if (result1.getResult() != null) {
- sendOutputMessage(srcRecord, result1.getResult());
+ // Grab the actual result
+ actualResult.set(result1.getResult());
Review comment:
Can you elaborate a bit? FWIW, I have tried various scenarios to keep
the call to `sendOutputMessage(srcRecord, result1.getResult());` insdie the
`whenComplete` completion stage, but in all scenarios, the exception throw is
lost. I tried catching the exception and re-throwing a `CompletionException`
and also tried calling `result.completeExceptionally()` on the sink error as
well. This was the only way to have the exception thrown by the Sink actually
caught and handled.
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