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https://issues.apache.org/jira/browse/FLINK-17817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17111829#comment-17111829
]
Caizhi Weng commented on FLINK-17817:
-------------------------------------
I remembered that FLINK-17774 actually solves this problem. To handle object
reuse, collect sink in FLINK-17774 will serialize the values in {{invoke}}
method, so there is no serializing in socket server thread. Let's wait for
FLINK-17774 to be merged so that this problem can also be solved.
> CollectResultFetcher fails with EOFException in AggregateReduceGroupingITCase
> -----------------------------------------------------------------------------
>
> Key: FLINK-17817
> URL: https://issues.apache.org/jira/browse/FLINK-17817
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream, Tests
> Affects Versions: 1.11.0
> Reporter: Robert Metzger
> Priority: Blocker
> Labels: pull-request-available, test-stability
> Fix For: 1.11.0
>
>
> CI:
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=1826&view=logs&j=e25d5e7e-2a9c-5589-4940-0b638d75a414&t=f83cd372-208c-5ec4-12a8-337462457129
> {code}
> 2020-05-19T10:34:18.3224679Z [ERROR]
> testSingleAggOnTable_SortAgg(org.apache.flink.table.planner.runtime.batch.sql.agg.AggregateReduceGroupingITCase)
> Time elapsed: 7.537 s <<< ERROR!
> 2020-05-19T10:34:18.3225273Z java.lang.RuntimeException: Failed to fetch next
> result
> 2020-05-19T10:34:18.3227634Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultIterator.nextResultFromFetcher(CollectResultIterator.java:92)
> 2020-05-19T10:34:18.3228518Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultIterator.hasNext(CollectResultIterator.java:63)
> 2020-05-19T10:34:18.3229170Z at
> org.apache.flink.shaded.guava18.com.google.common.collect.Iterators.addAll(Iterators.java:361)
> 2020-05-19T10:34:18.3229863Z at
> org.apache.flink.shaded.guava18.com.google.common.collect.Lists.newArrayList(Lists.java:160)
> 2020-05-19T10:34:18.3230586Z at
> org.apache.flink.table.planner.runtime.utils.BatchTestBase.executeQuery(BatchTestBase.scala:300)
> 2020-05-19T10:34:18.3231303Z at
> org.apache.flink.table.planner.runtime.utils.BatchTestBase.check(BatchTestBase.scala:141)
> 2020-05-19T10:34:18.3231996Z at
> org.apache.flink.table.planner.runtime.utils.BatchTestBase.checkResult(BatchTestBase.scala:107)
> 2020-05-19T10:34:18.3232847Z at
> org.apache.flink.table.planner.runtime.batch.sql.agg.AggregateReduceGroupingITCase.testSingleAggOnTable(AggregateReduceGroupingITCase.scala:176)
> 2020-05-19T10:34:18.3233694Z at
> org.apache.flink.table.planner.runtime.batch.sql.agg.AggregateReduceGroupingITCase.testSingleAggOnTable_SortAgg(AggregateReduceGroupingITCase.scala:122)
> 2020-05-19T10:34:18.3234461Z at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 2020-05-19T10:34:18.3234983Z at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 2020-05-19T10:34:18.3235632Z at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 2020-05-19T10:34:18.3236615Z at
> java.lang.reflect.Method.invoke(Method.java:498)
> 2020-05-19T10:34:18.3237256Z at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> 2020-05-19T10:34:18.3237965Z at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 2020-05-19T10:34:18.3238750Z at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> 2020-05-19T10:34:18.3239314Z at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 2020-05-19T10:34:18.3239838Z at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> 2020-05-19T10:34:18.3240362Z at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> 2020-05-19T10:34:18.3240803Z at
> org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> 2020-05-19T10:34:18.3243624Z at
> org.junit.rules.RunRules.evaluate(RunRules.java:20)
> 2020-05-19T10:34:18.3244531Z at
> org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> 2020-05-19T10:34:18.3245325Z at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> 2020-05-19T10:34:18.3246086Z at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> 2020-05-19T10:34:18.3246765Z at
> org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> 2020-05-19T10:34:18.3247390Z at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> 2020-05-19T10:34:18.3248012Z at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> 2020-05-19T10:34:18.3248779Z at
> org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> 2020-05-19T10:34:18.3249417Z at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> 2020-05-19T10:34:18.3250357Z at
> org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
> 2020-05-19T10:34:18.3251021Z at
> org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
> 2020-05-19T10:34:18.3251597Z at
> org.junit.rules.RunRules.evaluate(RunRules.java:20)
> 2020-05-19T10:34:18.3252141Z at
> org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> 2020-05-19T10:34:18.3252798Z at
> org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
> 2020-05-19T10:34:18.3253527Z at
> org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
> 2020-05-19T10:34:18.3254458Z at
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
> 2020-05-19T10:34:18.3255420Z at
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
> 2020-05-19T10:34:18.3256207Z at
> org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
> 2020-05-19T10:34:18.3257025Z at
> org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
> 2020-05-19T10:34:18.3257719Z at
> org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
> 2020-05-19T10:34:18.3258447Z at
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> 2020-05-19T10:34:18.3258948Z Caused by: java.io.EOFException
> 2020-05-19T10:34:18.3259379Z at
> java.io.DataInputStream.readUnsignedByte(DataInputStream.java:290)
> 2020-05-19T10:34:18.3259826Z at
> org.apache.flink.api.java.typeutils.runtime.MaskUtils.readIntoMask(MaskUtils.java:73)
> 2020-05-19T10:34:18.3260307Z at
> org.apache.flink.api.java.typeutils.runtime.RowSerializer.deserialize(RowSerializer.java:200)
> 2020-05-19T10:34:18.3261044Z at
> org.apache.flink.api.java.typeutils.runtime.RowSerializer.deserialize(RowSerializer.java:58)
> 2020-05-19T10:34:18.3261535Z at
> org.apache.flink.api.common.typeutils.base.ListSerializer.deserialize(ListSerializer.java:133)
> 2020-05-19T10:34:18.3262105Z at
> org.apache.flink.streaming.api.operators.collect.CollectCoordinationResponse.getResults(CollectCoordinationResponse.java:91)
> 2020-05-19T10:34:18.3262752Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultFetcher$ResultBuffer.dealWithResponse(CollectResultFetcher.java:291)
> 2020-05-19T10:34:18.3263385Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultFetcher$ResultBuffer.access$200(CollectResultFetcher.java:249)
> 2020-05-19T10:34:18.3264077Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.next(CollectResultFetcher.java:142)
> 2020-05-19T10:34:18.3264666Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultIterator.nextResultFromFetcher(CollectResultIterator.java:89)
> 2020-05-19T10:34:18.3265050Z ... 40 more
> {code}
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