[fix][flaky-test] BookKeeperClusterTestCase.setup() #1
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September 28, 2022 23:15
congbobo184
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Sep 29, 2022
Fixes: #15773 #16863 #16860 ### Motivation ``` Error: Tests run: 11, Failures: 1, Errors: 0, Skipped: 3, Time elapsed: 87.06 s <<< FAILURE! - in org.apache.pulsar.packages.management.storage.bookkeeper.BookKeeperPackagesStorageTest Error: setUp(org.apache.pulsar.packages.management.storage.bookkeeper.BookKeeperPackagesStorageTest) Time elapsed: 13.089 s <<< FAILURE! org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss at org.apache.zookeeper.KeeperException.create(KeeperException.java:102) at org.apache.bookkeeper.zookeeper.ZooKeeperWatcherBase.waitForConnection(ZooKeeperWatcherBase.java:159) at org.apache.bookkeeper.zookeeper.ZooKeeperClient$Builder.build(ZooKeeperClient.java:260) at org.apache.bookkeeper.test.ZooKeeperUtil.restartCluster(ZooKeeperUtil.java:133) at org.apache.bookkeeper.test.ZooKeeperUtil.startCluster(ZooKeeperUtil.java:104) at org.apache.pulsar.packages.management.storage.bookkeeper.bookkeeper.test.BookKeeperClusterTestCase.startZKCluster(BookKeeperClusterTestCase.java:238) at org.apache.pulsar.packages.management.storage.bookkeeper.bookkeeper.test.BookKeeperClusterTestCase.setUp(BookKeeperClusterTestCase.java:178) at org.apache.pulsar.packages.management.storage.bookkeeper.bookkeeper.test.BookKeeperClusterTestCase.setUp(BookKeeperClusterTestCase.java:166) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132) at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:61) at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:366) at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:320) at org.testng.internal.TestInvoker.runConfigMethods(TestInvoker.java:701) at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:527) at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:174) at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46) at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:822) at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:147) at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.testng.TestRunner.privateRun(TestRunner.java:764) at org.testng.TestRunner.run(TestRunner.java:585) at org.testng.SuiteRunner.runTest(SuiteRunner.java:384) at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378) at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337) at org.testng.SuiteRunner.run(SuiteRunner.java:286) at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53) at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96) at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218) at org.testng.TestNG.runSuitesLocally(TestNG.java:1140) at org.testng.TestNG.runSuites(TestNG.java:1069) at org.testng.TestNG.run(TestNG.java:1037) at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:135) at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.executeSingleClass(TestNGDirectoryTestSuite.java:112) at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.executeLazy(TestNGDirectoryTestSuite.java:123) at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.execute(TestNGDirectoryTestSuite.java:90) at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:146) at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345) at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418) ``` The root cause is that the zk client randomly selects IPV4 and IPV6 when parsing localhost, can connect when using IPV4, and fails when using IPV6. Therefore, if you continue to randomly connect to IPV6, the connection will timeout. https://github.com/apache/zookeeper/blob/bc1b231c9e32667b2978c86a6a64833470973dbd/zookeeper-server/src/main/java/org/apache/zookeeper/client/StaticHostProvider.java#L140-L146 Thanks to @poorbarcode for helping me locate the problem ### Modifications add @AfterMethod(alwaysRun = true) use Adress replace hostName ### Documentation - [x] `doc-not-needed` ### Matching PR in the forked repository PR in forked repository: - congbobo184#1
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