Technoboy- commented on a change in pull request #11500:
URL: https://github.com/apache/pulsar/pull/11500#discussion_r679583259
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File path:
pulsar-broker/src/test/java/org/apache/pulsar/broker/stats/ManagedCursorMetricsTest.java
##########
@@ -90,4 +91,66 @@ public void testManagedCursorMetrics() throws Exception {
Assert.assertEquals(metricsList.get(0).getMetrics().get("brk_ml_cursor_nonContiguousDeletedMessagesRange"),
0L);
}
+ @Test
+ public void testCursorReadWriteMetrics() throws Exception {
+ final String subName = "read-write";
+ final String topicName =
"persistent://my-namespace/use/my-ns/read-write";
+ final int messageSize = 10;
+
+ ManagedCursorMetrics metrics = new ManagedCursorMetrics(pulsar);
+
+ List<Metrics> metricsList = metrics.generate();
+ Assert.assertTrue(metricsList.isEmpty());
+
+ metricsList = metrics.generate();
+ Assert.assertTrue(metricsList.isEmpty());
+
+ @Cleanup
+ Consumer<byte[]> consumer = pulsarClient.newConsumer()
+ .topic(topicName)
+ .subscriptionType(SubscriptionType.Shared)
+ .ackTimeout(1, TimeUnit.SECONDS)
+ .subscriptionName(subName)
+ .subscribe();
+
+ @Cleanup
+ Consumer<byte[]> consumer2 = pulsarClient.newConsumer()
+ .topic(topicName)
+ .subscriptionType(SubscriptionType.Shared)
+ .ackTimeout(1, TimeUnit.SECONDS)
+ .subscriptionName(subName + "-2")
+ .subscribe();
+
+ @Cleanup
+ Producer<byte[]> producer = pulsarClient.newProducer()
+ .topic(topicName)
+ .create();
+
+ for (PulsarMockLedgerHandle ledgerHandle :
mockBookKeeper.getLedgerMap().values()) {
+ ledgerHandle.close();
+ }
+
+ for (int i = 0; i < messageSize; i++) {
+ String message = "my-message-" + i;
+ producer.send(message.getBytes());
+ if (i % 2 == 0) {
+ consumer.acknowledge(consumer.receive().getMessageId());
+ } else {
+ consumer2.acknowledge(consumer.receive().getMessageId());
+ }
+ }
+ metricsList = metrics.generate();
+ Assert.assertEquals(metricsList.size(), 3);
+
Assert.assertEquals(metricsList.get(0).getMetrics().get("brk_ml_cursor_writeLedgerSize"),
26L);
Review comment:
It will not change even if running multi-times.
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