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Posted to common-issues@hadoop.apache.org by "Akira Ajisaka (Jira)" <ji...@apache.org> on 2020/10/22 18:06:00 UTC
[jira] [Commented] (HADOOP-17322) TestZKFailoverController#testNoZK
is flaky
[ https://issues.apache.org/jira/browse/HADOOP-17322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17219240#comment-17219240 ]
Akira Ajisaka commented on HADOOP-17322:
----------------------------------------
The test assumes there are no ZooKeeper services and fail in the following code:
{code:title=ZKFailoverController#doRun(String[])}
try {
initZK();
} catch (KeeperException ke) {
LOG.error("Unable to start failover controller. Unable to connect "
+ "to ZooKeeper quorum at " + zkQuorum + ". Please check the "
+ "configured value for " + ZK_QUORUM_KEY + " and ensure that "
+ "ZooKeeper is running.", ke);
return ERR_CODE_NO_ZK;
}
{code}
however, the error message shows that {{initZK()}} passed and failed later. A ZK service existed for some reason.
I'd suggest we should disable parallel tests in hadoop-common.
> TestZKFailoverController#testNoZK is flaky
> ------------------------------------------
>
> Key: HADOOP-17322
> URL: https://issues.apache.org/jira/browse/HADOOP-17322
> Project: Hadoop Common
> Issue Type: Bug
> Components: ha, test
> Reporter: Akira Ajisaka
> Priority: Major
>
> TestZKFailoverController#testNoZK failed in https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2397/4/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt
> {noformat}
> [ERROR] testNoZK(org.apache.hadoop.ha.TestZKFailoverController) Time elapsed: 0.114 s <<< ERROR!
> java.lang.IllegalStateException
> at org.apache.hadoop.thirdparty.com.google.common.base.Preconditions.checkState(Preconditions.java:492)
> at org.apache.hadoop.ha.ActiveStandbyElector.parentZNodeExists(ActiveStandbyElector.java:318)
> at org.apache.hadoop.ha.ZKFailoverController.doRun(ZKFailoverController.java:230)
> at org.apache.hadoop.ha.ZKFailoverController.access$000(ZKFailoverController.java:60)
> at org.apache.hadoop.ha.ZKFailoverController$1.run(ZKFailoverController.java:178)
> at org.apache.hadoop.ha.ZKFailoverController$1.run(ZKFailoverController.java:174)
> at org.apache.hadoop.security.SecurityUtil.doAsLoginUserOrFatal(SecurityUtil.java:485)
> at org.apache.hadoop.ha.ZKFailoverController.run(ZKFailoverController.java:174)
> at org.apache.hadoop.ha.TestZKFailoverController.runFC(TestZKFailoverController.java:700)
> at org.apache.hadoop.ha.TestZKFailoverController.testNoZK(TestZKFailoverController.java:135)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.apache.zookeeper.JUnit4ZKTestRunner$LoggedInvokeMethod.evaluate(JUnit4ZKTestRunner.java:80)
> at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
> at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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