zsxwing commented on a change in pull request #23301: [SPARK-26350][SS]Allow to
override group id of the Kafka consumer
URL: https://github.com/apache/spark/pull/23301#discussion_r241603962
##########
File path:
external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaMicroBatchSourceSuite.scala
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@@ -581,6 +581,33 @@ abstract class KafkaMicroBatchSourceSuiteBase extends
KafkaSourceSuiteBase {
)
}
+ test("allow group.id override") {
+ // Tests code path KafkaSourceProvider.{sourceSchema(.), createSource(.)}
+ // as well as KafkaOffsetReader.createConsumer(.)
+ val topic = newTopic()
+ testUtils.createTopic(topic, partitions = 3)
+ testUtils.sendMessages(topic, (1 to 10).map(_.toString).toArray, Some(0))
+ testUtils.sendMessages(topic, (11 to 20).map(_.toString).toArray, Some(1))
+ testUtils.sendMessages(topic, (21 to 30).map(_.toString).toArray, Some(2))
+
+ val dsKafka = spark
+ .readStream
+ .format("kafka")
+ .option("kafka.group.id", "id-" + Random.nextInt())
+ .option("kafka.bootstrap.servers", testUtils.brokerAddress)
+ .option("subscribe", topic)
+ .option("startingOffsets", "earliest")
+ .load()
+ .selectExpr("CAST(value AS STRING)")
+ .as[String]
+ .map(_.toInt)
+
+ testStream(dsKafka)(
Review comment:
Yeah, we don't have an api to check this.
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