[CARBONDATA-4013] NullPointerException when use ArrowCarbonReader to read carbondata created using orc ,parquet and avro files in SDK

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 2.1.0
• Component/s: other
• Environment: Spark 2.4.5 compiled jars
• Assignee: Unassigned
• Reporter: Chetan Bhat
• Created: 25/Sep/20 12:49
• Updated: 28/Sep/20 11:39
• Resolved: 28/Sep/20 11:39

Description

when use ArrowCarbonReader to read carbondata created using orc files in SDK-

java.lang.NullPointerException
at org.apache.carbondata.sdk.file.arrow.ArrowUtils.toArrowSchema(ArrowUtils.java:109)
at org.apache.carbondata.sdk.file.arrow.ArrowConverter.<init>(ArrowConverter.java:45)
at org.apache.carbondata.sdk.file.ArrowCarbonReader.readArrowBatch(ArrowCarbonReader.java:54)
at com.apache.spark.LoadFromFiles.testORCFileLoadWithComplexSchemaArrowReader(LoadFromFiles.java:1401)
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$2.evaluate(ParentRunner.java:268)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)

 

when use ArrowCarbonReader to read carbondata created using parquet and avro files in SDK

java.lang.ClassCastException: java.lang.String cannot be cast to [Ljava.lang.Object;

at org.apache.carbondata.sdk.file.arrow.StructWriter.setValue(ArrowFieldWriter.java:374)
at org.apache.carbondata.sdk.file.arrow.ArrowFieldWriter.write(ArrowFieldWriter.java:60)
at org.apache.carbondata.sdk.file.arrow.StructWriter.setValue(ArrowFieldWriter.java:377)
at org.apache.carbondata.sdk.file.arrow.ArrowFieldWriter.write(ArrowFieldWriter.java:60)
at org.apache.carbondata.sdk.file.arrow.ArrowWriter.write(ArrowWriter.java:56)
at org.apache.carbondata.sdk.file.arrow.ArrowConverter.addToArrowBuffer(ArrowConverter.java:63)
at org.apache.carbondata.sdk.file.ArrowCarbonReader.readArrowBatch(ArrowCarbonReader.java:56)
at com.apache.spark.LoadFromFiles.testParquetLoadAndCarbonArrowReader(LoadFromFiles.java:1775)