Jianbo Ma created CAMEL-19358:
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Summary: camel-kafka - Kafka consumer is still able to consume
message with keepOpen as true in ThrottlingExceptionRoutePolicy
Key: CAMEL-19358
URL: https://issues.apache.org/jira/browse/CAMEL-19358
Project: Camel
Issue Type: Bug
Components: camel-kafka
Affects Versions: 3.18.3
Reporter: Jianbo Ma
Fix For: 3.21.0
Hi,
while attempting to add the circuit breaker pattern to a route (see also
CAMEL-18759), I tried to use {{ThrottlingExceptionRoutePolicy}} to suspend and
resume the route when a specific exception is thrown. I noticed that regardless
of the {{breakOnFirstError}} setting, the message causing the circuit to be
opened is lost. If {{breakOnFirstError}} is {{true}}, logs are showing "Will
seek consumer to offset -1 and start polling again", but when the circuit is
closed the message is not consumed. I suspect that the consumer overwrites the
offset when it's suspended. If I switch to manual commits, everything works as
expected.
Reproducer here:
https://github.com/lorenzobenvenuti/camel-kafka-break-on-first-error-bug
Thanks,
lorenzo
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