0xffff-zhiyan commented on code in PR #20481:
URL: https://github.com/apache/kafka/pull/20481#discussion_r2438258832
##########
core/src/test/scala/kafka/server/KafkaRequestHandlerTest.scala:
##########
@@ -698,4 +699,94 @@ class KafkaRequestHandlerTest {
// cleanup
brokerTopicStats.close()
}
+
+ @Test
+ def testRequestThreadMetrics(): Unit = {
+ val time = Time.SYSTEM
+ val metricsBroker = new RequestChannelMetrics(java.util.Set.of[ApiKeys])
+ val metricsController = new
RequestChannelMetrics(java.util.Set.of[ApiKeys])
+ val requestChannelBroker = new RequestChannel(10, time, metricsBroker)
+ val requestChannelController = new RequestChannel(10, time,
metricsController)
+ val apiHandler = mock(classOf[ApiRequestHandler])
+
+ // Reset global shared counter for test
+ KafkaRequestHandlerPool.aggregateThreads.set(0)
+
+ // Create broker pool with 4 threads
+ val brokerPool = new KafkaRequestHandlerPool(
+ 0,
+ requestChannelBroker,
+ apiHandler,
+ time,
+ 4,
+ "broker"
+ )
+
+ // Verify global counter is updated
+ assertEquals(4, KafkaRequestHandlerPool.aggregateThreads.get, "global
counter should be 4 after broker pool")
+
+ // Create controller pool with 4 threads
+ val controllerPool = new KafkaRequestHandlerPool(
+ 0,
+ requestChannelController,
+ apiHandler,
+ time,
+ 4,
+ "controller"
+ )
+
+ // Verify global counter is updated to sum of both pools
+ assertEquals(8, KafkaRequestHandlerPool.aggregateThreads.get, "global
counter should be 8 after both pools")
+
+ try {
+ val aggregateMeterField =
classOf[KafkaRequestHandlerPool].getDeclaredField("aggregateIdleMeter")
+ aggregateMeterField.setAccessible(true)
+ val aggregateMeter =
aggregateMeterField.get(brokerPool).asInstanceOf[Meter]
+
+ val perPoolIdleMeterField =
classOf[KafkaRequestHandlerPool].getDeclaredField("perPoolIdleMeter")
+ perPoolIdleMeterField.setAccessible(true)
+ val brokerPerPoolIdleMeter =
perPoolIdleMeterField.get(brokerPool).asInstanceOf[Meter]
+ val controllerPerPoolIdleMeter =
perPoolIdleMeterField.get(controllerPool).asInstanceOf[Meter]
+
+ var aggregateValue = 0.0
+ var brokerPerPoolValue = 0.0
+ var controllerPerPoolValue = 0.0
+
+ Thread.sleep(2000)
Review Comment:
removed
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