Hi all – I’ve created some helper functions to efficiently create HDFS Output
operators (which require common configurations). However, I run into a
duplicate operator ID error when attempting to run this, error and code are
below:
Why would the DAG be assigning a duplicate operator ID? For the record, we’re
on Apex 3.0.0 so if this is a bug that has subsequently been fixed please let
me know.
:2016-03-09 18:50:48,074 [main] DEBUG logical.LogicalPlan <init> - Initializing
LatencyViz_HDHT as
com.capitalone.vault8.citadel.operators.impl.LatencyVisualization
LatencyOut_HDHT,latencies
2016-03-09 18:50:48,079 [main] DEBUG logical.LogicalPlan <init> - Initializing
LatencyOut_HDHT as
com.capitalone.vault8.citadel.operators.impl.HdfsFileOutputOperator
DurabilityOut_HDHT,durability
2016-03-09 18:50:48,081 [main] DEBUG logical.LogicalPlan <init> - Initializing
DurabilityOut_HDHT as
com.capitalone.vault8.citadel.operators.impl.HdfsFileOutputOperator
Records_HDHT,records
java.lang.IllegalArgumentException: duplicate operator id:
OperatorMeta{name=Records_HDHT, operator=RecordMaker{name=Records_HDHT},
attributes={Attribute{defaultValue=null,
name=com.datatorrent.api.Context.OperatorContext.PARTITIONER,
codec=com.datatorrent.api.StringCodec$Object2String@6f96c77}=com.datatorrent.common.partitioner.StatelessPartitioner@be64738}}
at
com.datatorrent.stram.plan.logical.LogicalPlan.addOperator(LogicalPlan.java:865)
at
com.capitalone.vault8.citadel.Application.addHdfsOutputOp(Application.java:171)
at
com.capitalone.vault8.citadel.Application.createPipelineHdht(Application.java:215)
at com.capitalone.vault8.citadel.Application.populateDAG(Application.java:91)
at
com.datatorrent.stram.plan.logical.LogicalPlanConfiguration.prepareDAG(LogicalPlanConfiguration.java:1171)
at com.datatorrent.stram.LocalModeImpl.prepareDAG(LocalModeImpl.java:57)
at
com.capitalone.vault8.citadel.ApplicationTest.testApplication(ApplicationTest.java:29)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
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.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
private HdfsFileOutputOperator addHdfsOutputOp(DAG dag,
String opName,
String fileName,
Configuration conf) {
System.out.println(opName + "," + fileName);
HdfsFileOutputOperator outputOp = new HdfsFileOutputOperator();
outputOp.setCoreSite(conf.get("coreSite"));
outputOp.setHdfsSite(conf.get("hdfsSite"));
outputOp.setFilePath(getOutputPath(conf, fileName));
dag.addOperator(opName, outputOp);
return outputOp;
}
final HdfsFileOutputOperator latenciesOutput =
addHdfsOutputOp(dag, "LatencyOut" + label, "latencies", conf);
final HdfsFileOutputOperator durabilityOutput =
addHdfsOutputOp(dag, "DurabilityOut" + label, "durability", conf);
final HdfsFileOutputOperator recordsOut =
addHdfsOutputOp(dag, "Records" + label, "records", conf);
final HdfsFileOutputOperator recordsSchemaOut =
addHdfsOutputOp(dag, "RecordsSchema" + label, "records", conf);
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