squah-confluent commented on code in PR #18499:
URL: https://github.com/apache/kafka/pull/18499#discussion_r1918440313
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server-common/src/main/java/org/apache/kafka/deferred/DeferredEventQueue.java:
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@@ -82,7 +85,11 @@ public void failAll(Exception exception) {
Entry<Long, List<DeferredEvent>> entry = iter.next();
for (DeferredEvent event : entry.getValue()) {
log.info("failAll({}): failing {}.",
exception.getClass().getSimpleName(), event);
- event.complete(exception);
+ try {
+ event.complete(exception);
+ } catch (Throwable e) {
+ log.error("failAll({}): {} threw an exception.",
exception.getClass().getSimpleName(), event, e);
+ }
Review Comment:
This DeferredEvent fix was a bit of a mess. I wasn't sure if there could be
dependencies between the events, so I left it up to the caller. ie. I wasn't
sure it was safe to call the completion for offset n + 1 if the completion for
offset n wasn't called/threw for some reason.
If the group coordinator DeferredEvents are independent, I'd go for a
different approach entirely.
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