Github user srdo commented on a diff in the pull request:
https://github.com/apache/storm/pull/1835#discussion_r93294533
--- Diff:
external/storm-kafka-client/src/main/java/org/apache/storm/kafka/spout/KafkaSpout.java
---
@@ -218,7 +223,11 @@ public void nextTuple() {
}
if (poll()) {
- setWaitingToEmit(pollKafkaBroker());
+ try {
+ setWaitingToEmit(pollKafkaBroker());
+ } catch (KafkaException e) {
--- End diff --
I think you should catch
https://kafka.apache.org/0100/javadoc/org/apache/kafka/common/errors/RetriableException.html
instead, it seems to cover all the exceptions that are expected to be
transient (leader change for example, through InvalidMetadataException).
Catching KafkaException will break interrupt handling (see
https://github.com/apache/storm/pull/1821) because InterruptException is an
instance of KafkaException.
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