Andrey Zagrebin created FLINK-20290:
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Summary: Duplicated output in FileSource continuous ITCase with TM
failover
Key: FLINK-20290
URL: https://issues.apache.org/jira/browse/FLINK-20290
Project: Flink
Issue Type: Bug
Components: Connectors / FileSystem
Affects Versions: 1.12.0
Reporter: Andrey Zagrebin
If FileSourceTextLinesITCase::testContinuousTextFileSource includes TM restarts
(after failing TM with TestingMiniCluster::terminateTaskExecutor, see
testContinuousTextFileSourceWithTaskManagerFailover in
[branch|https://github.com/azagrebin/flink/tree/FLINK-20118-it]) then sometimes
I observe duplicated lines in the output after running the test suite 5-10
times in IDE:
{code:java}
Test
testContinuousTextFileSourceWithTaskManagerFailover(org.apache.flink.connector.file.src.FileSourceTextLinesITCase)
failed with:
java.lang.AssertionError:
Expected: ["And by opposing end them?--To die,--to sleep,--", "And enterprises
of great pith and moment,", "And lose the name of action.--Soft you now!", "And
makes us rather bear those ills we have", "And thus the native hue of
resolution", "Be all my sins remember'd.", "But that the dread of something
after death,--", "Devoutly to be wish'd. To die,--to sleep;--", "For in that
sleep of death what dreams may come,", "For who would bear the whips and scorns
of time,", "Is sicklied o'er with the pale cast of thought;", "Must give us
pause: there's the respect", "No more; and by a sleep to say we end", "No
traveller returns,--puzzles the will,", "Or to take arms against a sea of
troubles,", "Than fly to others that we know not of?", "That flesh is heir
to,--'tis a consummation", "That makes calamity of so long life;", "That
patient merit of the unworthy takes,", "The fair Ophelia!--Nymph, in thy
orisons", "The heartache, and the thousand natural shocks", "The insolence of
office, and the spurns", "The oppressor's wrong, the proud man's contumely,",
"The pangs of despis'd love, the law's delay,", "The slings and arrows of
outrageous fortune", "The undiscover'd country, from whose bourn", "Thus
conscience does make cowards of us all;", "To be, or not to be,--that is the
question:--", "To grunt and sweat under a weary life,", "To sleep! perchance to
dream:--ay, there's the rub;", "When he himself might his quietus make", "When
we have shuffled off this mortal coil,", "Whether 'tis nobler in the mind to
suffer", "With a bare bodkin? who would these fardels bear,", "With this
regard, their currents turn awry,"]
but: was ["And by opposing end them?--To die,--to sleep,--", "And
enterprises of great pith and moment,", "And lose the name of action.--Soft you
now!", "And makes us rather bear those ills we have", "And thus the native hue
of resolution", "Be all my sins remember'd.", "But that the dread of something
after death,--", "Devoutly to be wish'd. To die,--to sleep;--", "Devoutly to be
wish'd. To die,--to sleep;--", "For in that sleep of death what dreams may
come,", "For who would bear the whips and scorns of time,", "Is sicklied o'er
with the pale cast of thought;", "Must give us pause: there's the respect", "No
more; and by a sleep to say we end", "No more; and by a sleep to say we end",
"No traveller returns,--puzzles the will,", "Or to take arms against a sea of
troubles,", "Than fly to others that we know not of?", "That flesh is heir
to,--'tis a consummation", "That flesh is heir to,--'tis a consummation", "That
makes calamity of so long life;", "The fair Ophelia!--Nymph, in thy orisons",
"The heartache, and the thousand natural shocks", "The heartache, and the
thousand natural shocks", "The slings and arrows of outrageous fortune", "The
undiscover'd country, from whose bourn", "Thus conscience does make cowards of
us all;", "To be, or not to be,--that is the question:--", "To grunt and sweat
under a weary life,", "To sleep! perchance to dream:--ay, there's the rub;",
"To sleep! perchance to dream:--ay, there's the rub;", "When we have shuffled
off this mortal coil,", "Whether 'tis nobler in the mind to suffer", "With a
bare bodkin? who would these fardels bear,", "With this regard, their currents
turn awry,"]
at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
at org.junit.Assert.assertThat(Assert.java:956)
at org.junit.Assert.assertThat(Assert.java:923)
at
org.apache.flink.connector.file.src.FileSourceTextLinesITCase.verifyResult(FileSourceTextLinesITCase.java:198)
at
org.apache.flink.connector.file.src.FileSourceTextLinesITCase.testContinuousTextFileSource(FileSourceTextLinesITCase.java:151)
at
org.apache.flink.connector.file.src.FileSourceTextLinesITCase.testContinuousTextFileSourceWithTaskManagerFailover(FileSourceTextLinesITCase.java:109)
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.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at
com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
{code}
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