Github user srdo commented on a diff in the pull request:
https://github.com/apache/storm/pull/2147#discussion_r119422491
--- Diff:
external/storm-kafka-client/src/main/java/org/apache/storm/kafka/spout/KafkaSpout.java
---
@@ -170,10 +182,13 @@ private void initialize(Collection<TopicPartition>
partitions) {
final long fetchOffset = doSeek(tp, committedOffset);
setAcked(tp, fetchOffset);
}
- initialized = true;
+
+ task.start();
--- End diff --
As far as I recall the KafkaConsumer won't let you commit messages to
partitions the consumer is not assigned, so committing after
onPartitionsRevoked won't work. I think it would be a nicer solution to
eliminate most rebalances by switching to manual partition assignment
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