[GitHub] [kafka] dengziming commented on a diff in pull request #12104: KAFKA-13746: Attempt to fix flaky test by waiting to fetch 2 topics f…

[GitBox]

dengziming commented on code in PR #12104:
URL: https://github.com/apache/kafka/pull/12104#discussion_r865512959


##########
core/src/test/scala/integration/kafka/admin/TopicCommandIntegrationTest.scala:
##########
@@ -733,12 +733,18 @@ class TopicCommandIntegrationTest extends 
KafkaServerTestHarness with Logging wi
       killBroker(0)
       val aliveServers = brokers.filterNot(_.config.brokerId == 0)
       TestUtils.waitForPartitionMetadata(aliveServers, underMinIsrTopic, 0)
-      val output = TestUtils.grabConsoleOutput(
-        topicService.describeTopic(new 
TopicCommandOptions(Array("--under-min-isr-partitions"))))
+      var output = ""
+      TestUtils.waitUntilTrue(
+        () => {
+          output = TestUtils.grabConsoleOutput(
+            topicService.describeTopic(new 
TopicCommandOptions(Array("--under-min-isr-partitions"))))

Review Comment:
   Sorry, it seems we won't remove a broker from isr if it's the only replica 
so this change doesn't make sense, to make it work as expected we should change 
it like this:
   ```
   xxxx && broker.metadataCache.getPartitionInfo(offlineTopic, 0).get.leader() 
== MetadataResponse.NO_LEADER_ID
   ```



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