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Posted to hdfs-issues@hadoop.apache.org by "Ayush Saxena (Jira)" <ji...@apache.org> on 2023/05/10 04:47:00 UTC

[jira] [Assigned] (HDFS-16991) Fix testMkdirsRaceWithObserverRead

     [ https://issues.apache.org/jira/browse/HDFS-16991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ayush Saxena reassigned HDFS-16991:
-----------------------------------

    Assignee: fanluo

> Fix testMkdirsRaceWithObserverRead
> ----------------------------------
>
>                 Key: HDFS-16991
>                 URL: https://issues.apache.org/jira/browse/HDFS-16991
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs
>    Affects Versions: 3.3.4
>            Reporter: fanluo
>            Assignee: fanluo
>            Priority: Minor
>              Labels: pull-request-available
>
> The test case testMkdirsRaceWithObserverRead which in TestObserverNode sometimes failed like this:
> {code:java}
> java.lang.AssertionError: Client #1 lastSeenStateId=-9223372036854775808 activStateId=5
> null    at org.junit.Assert.fail(Assert.java:89)
>     at org.junit.Assert.assertTrue(Assert.java:42)
>     at org.apache.hadoop.hdfs.server.namenode.ha.TestObserverNode.testMkdirsRaceWithObserverRead(TestObserverNode.java:607)
>     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:59)
>     at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) {code}
> i think the Thread.sleep() should move into the sub threads, like this:
> {code:java}
> public void run() {
>   try {
>     fs.mkdirs(DIR_PATH);
>     Thread.sleep(150); // wait until mkdir is logged
>     clientState.lastSeenStateId = HATestUtil.getLastSeenStateId(fs);
>     assertSentTo(fs, 0);    FileStatus stat = fs.getFileStatus(DIR_PATH);
>     assertSentTo(fs, 2);
>     assertTrue("Should be a directory", stat.isDirectory());
>   } catch (FileNotFoundException ioe) {
>     clientState.fnfe = ioe;
>   } catch (Exception e) {
>     fail("Unexpected exception: " + e);
>   }
> } {code}



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