chenyulin0719 commented on code in PR #18513:
URL: https://github.com/apache/kafka/pull/18513#discussion_r1948493346
##########
core/src/test/scala/integration/kafka/api/PlaintextAdminIntegrationTest.scala:
##########
@@ -4003,6 +3939,72 @@ class PlaintextAdminIntegrationTest extends
BaseAdminIntegrationTest {
ConfigSource.DYNAMIC_TOPIC_CONFIG, false, false,
Collections.emptyList(), null, null),
topicConfigs.get(TopicConfig.INDEX_INTERVAL_BYTES_CONFIG))
}
+
+ class BackgroundConsumerSet(testGroupId: String, defaultConsumerConfig:
Properties) {
+ private val consumerSet:
scala.collection.mutable.Set[Consumer[Array[Byte], Array[Byte]]] =
scala.collection.mutable.Set.empty
+ private val consumerThreads: scala.collection.mutable.Set[Thread] =
scala.collection.mutable.Set.empty
+ private var startLatch: CountDownLatch = new CountDownLatch(0)
+ private var stopLatch: CountDownLatch = new CountDownLatch(0)
+ private var consumerThreadRunning = new AtomicBoolean(false)
+
+ defaultConsumerConfig.setProperty(ConsumerConfig.GROUP_ID_CONFIG,
testGroupId)
+
+ def addConsumer(topic: String, configOverrides: Properties = new
Properties()): Unit = {
+ val newConsumerConfig =
defaultConsumerConfig.clone().asInstanceOf[Properties]
+ newConsumerConfig.putAll(configOverrides)
+
+ val consumer = createConsumer(configOverrides = newConsumerConfig)
+ val consumerThread = createConsumerThread(consumer, topic)
+ consumerSet.add(consumer)
+ consumerThreads.add(consumerThread)
+ }
+
+ def start(): Unit = {
+ startLatch = new CountDownLatch(consumerSet.size)
Review Comment:
The total `consumerThread` count is non-deterministed before `start()` so I
decide to keep reassigning `startLatch`.
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