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Felix seibert edited comment on FLINK-12550 at 5/20/19 8:45 AM: ---------------------------------------------------------------- {code:java} // Code in method JobMaster.requestNextInputSplit: final String host = slot != null ? slot.getTaskManagerLocation().getHostname() : null; {code} I only find this line of code in runtime.executiongraph.Execution, but not in runtime.jobmaster.JobMaster: [https://github.com/apache/flink/blob/4b38256418a96058457a356dabfdfdcee1ca633b/flink-runtime/src/main/java/org/apache/flink/runtime/executiongraph/Execution.java#L316] Do you mean this one? was (Author: felxe): {code:java} // Code in method JobMaster.requestNextInputSplit: final String host = slot != null ? slot.getTaskManagerLocation().getHostname() : null; {code} I find this line of code in flink.runtime.executiongraph.Execution: [https://github.com/apache/flink/blob/4b38256418a96058457a356dabfdfdcee1ca633b/flink-runtime/src/main/java/org/apache/flink/runtime/executiongraph/Execution.java#L316] Do you mean this one? > hostnames with a dot never receive local input splits > ----------------------------------------------------- > > Key: FLINK-12550 > URL: https://issues.apache.org/jira/browse/FLINK-12550 > Project: Flink > Issue Type: Bug > Components: API / DataSet > Affects Versions: 1.8.0 > Reporter: Felix seibert > Priority: Major > Labels: pull-request-available > Time Spent: 10m > Remaining Estimate: 0h > > LocatableInputSplitAssigner (in package api.common.io) fails to assign local > input splits to hosts whose hostname contains a dot ("."). To reproduce add > the following test to LocatableSplitAssignerTest and execute it. It will > always fail. In my mind, this is contrary to the expected behaviour, which is > that the host should obtain the one split that is stored on the very same > machine. > > {code:java} > @Test > public void testLocalSplitAssignmentForHostWithDomainName() { > try { > String hostNameWithDot = "testhost.testdomain"; > // load one split > Set<LocatableInputSplit> splits = new HashSet<LocatableInputSplit>(); > splits.add(new LocatableInputSplit(0, hostNameWithDot)); > // get next split for the host > LocatableInputSplitAssigner ia = new > LocatableInputSplitAssigner(splits); > InputSplit is = null; > ia.getNextInputSplit(hostNameWithDot, 0); > // there should be exactly zero remote and one local assignment > assertEquals(0, ia.getNumberOfRemoteAssignments()); > assertEquals(1, ia.getNumberOfLocalAssignments()); > } > catch (Exception e) { > e.printStackTrace(); > fail(e.getMessage()); > } > } > {code} > I also experienced this error in practice, and will later today open a pull > request to fix it. > > Note: I'm not sure if I selected the correct component category. > -- This message was sent by Atlassian JIRA (v7.6.3#76005)