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https://issues.apache.org/jira/browse/SENTRY-1800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045779#comment-16045779
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Na Li commented on SENTRY-1800:
-------------------------------
Are we seeing the same issue as in Sentry-1792? The changeID is continuous, but
the delta change list misses some entries at the end of the list? Sentry-1795
saves the new entry with increased changeID, there should have no missing
entries.
> Flaky testConcurrentUpdateChanges test
> --------------------------------------
>
> Key: SENTRY-1800
> URL: https://issues.apache.org/jira/browse/SENTRY-1800
> Project: Sentry
> Issue Type: Sub-task
> Components: Sentry
> Affects Versions: sentry-ha-redesign
> Reporter: Alexander Kolbasov
> Assignee: Alexander Kolbasov
> Labels: sentry-ha
> Fix For: sentry-ha-redesign
>
> Attachments: SENTRY-1800.01-sentry-ha-redesign.patch
>
>
> The fixed for SENTRY-1795 was supposed to guarantee that we don't have any
> holes in the update tables.
> The ffix includes the new test {{TestSentryStore#testDuplicateNotification}}.
> This test passes sometimes but sometimes fails, for example:
> {code}
> java.lang.AssertionError:
> Expected :5000
> Actual :4863
> <Click to see difference>
> at org.junit.Assert.fail(Assert.java:93)
> at org.junit.Assert.failNotEquals(Assert.java:647)
> at org.junit.Assert.assertEquals(Assert.java:128)
> at org.junit.Assert.assertEquals(Assert.java:472)
> at org.junit.Assert.assertEquals(Assert.java:456)
> at
> org.apache.sentry.provider.db.service.persistent.TestSentryStore.testConcurrentUpdateChanges(TestSentryStore.java:2977)
> 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$1.runReflectiveCall(FrameworkMethod.java:45)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at
> org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:62)
> {code}
> It fails here:
> {code}
> List<MSentryPermChange> changes = sentryStore.getMSentryPermChanges();
> assertEquals(numThreads * numChangesPerThread, changes.size());
> {code}
> meaning that some changes are missing. The question is whether they are
> missing with holes or we just have a shorter list?
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