HeartSaVioR commented on a change in pull request #25135: [SPARK-28367][SS] Use
new KafkaConsumer.poll API in Kafka connector
URL: https://github.com/apache/spark/pull/25135#discussion_r303755232
##########
File path:
external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/KafkaOffsetReader.scala
##########
@@ -419,6 +416,19 @@ private[kafka010] class KafkaOffsetReader(
stopConsumer()
_consumer = null // will automatically get reinitialized again
}
+
+ private def getPartitions(): ju.Set[TopicPartition] = {
+ var partitions = Set.empty[TopicPartition].asJava
+ val startTimeMs = System.currentTimeMillis()
+ while (partitions.isEmpty && System.currentTimeMillis() - startTimeMs <
pollTimeoutMs) {
+ // Poll to get the latest assigned partitions
+ consumer.poll(jt.Duration.ofMillis(100))
Review comment:
I'm sorry for back and forth on this, but it would be better if we can add
timeout only when it's retrying. So try once with no delay, and retry with some
timeouts (effectively sleep) only if it fails.
This would avoid introducing additional timeout when the metadata is
available, but still adding some delay between retrying. WDYT?
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