Github user tzulitai commented on a diff in the pull request:
https://github.com/apache/flink/pull/4321#discussion_r128178914
--- Diff:
flink-connectors/flink-connector-kafka-0.9/src/main/java/org/apache/flink/streaming/connectors/kafka/internal/KafkaConsumerThread.java
---
@@ -210,14 +214,28 @@ public void run() {
}
try {
- newPartitions =
unassignedPartitionsQueue.pollBatch();
+ if (hasAssignedPartitions) {
+ newPartitions =
unassignedPartitionsQueue.pollBatch();
+ }
+ else {
+ // if no assigned partitions
block until we get at least one
+ // instead of hot spinning this
loop. We relay on a fact that
--- End diff --
nit: typo? relay -> rely
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