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https://issues.apache.org/jira/browse/HIVE-14869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15536982#comment-15536982
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Prasanth Jayachandran commented on HIVE-14869:
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grrr.. this was meant to be created in ORC project.
> Make ORC Reader resilient to 0 length files
> -------------------------------------------
>
> Key: HIVE-14869
> URL: https://issues.apache.org/jira/browse/HIVE-14869
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
>
> Orc reader will throw IndexOutOfBounds if used directly. Following is the
> exception
> {code}
> Caused by: java.lang.IndexOutOfBoundsException
> at java.nio.Buffer.checkIndex(Buffer.java:540)
> at java.nio.HeapByteBuffer.get(HeapByteBuffer.java:139)
> at org.apache.orc.impl.ReaderImpl.extractFileTail(ReaderImpl.java:515)
> at org.apache.orc.impl.ReaderImpl.<init>(ReaderImpl.java:368)
> at org.apache.orc.OrcFile.createReader(OrcFile.java:222)
> at org.apache.orc.TestReader.testReadZeroLengthFile(TestReader.java:57)
> 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:47)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at
> org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:19)
> ... 22 more
> {code}
> Input format usually avoids such files but not generating splits but if
> someone uses the Reader directly on invalid files it should be resilient too.
> OrcOutputFormat will not create a 0 length so this shouldn't be a problem for
> files written by Orc itself.
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