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https://issues.apache.org/jira/browse/HIVE-17404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16796372#comment-16796372
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Prasanth Jayachandran commented on HIVE-17404:
----------------------------------------------
+1
> Orc split generation cache does not handle files without file tail
> ------------------------------------------------------------------
>
> Key: HIVE-17404
> URL: https://issues.apache.org/jira/browse/HIVE-17404
> Project: Hive
> Issue Type: Bug
> Affects Versions: 3.0.0, 2.4.0
> Reporter: Prasanth Jayachandran
> Assignee: Aditya Shah
> Priority: Critical
> Attachments: HIVE-17404.2.patch, HIVE-17404.patch
>
>
> Some old files do not have Orc FileTail. If file tail does not exist, split
> generation should fallback to old way of storing footers.
> This can result in exceptions like below
> {code}
> ORC split generation failed with exception: Malformed ORC file. Invalid
> postscript length 9
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.generateSplitsInfo(OrcInputFormat.java:1735)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.getSplits(OrcInputFormat.java:1822)
> at
> org.apache.hadoop.hive.ql.io.HiveInputFormat.addSplitsForGroup(HiveInputFormat.java:450)
> at
> org.apache.hadoop.hive.ql.io.HiveInputFormat.getSplits(HiveInputFormat.java:569)
> at
> org.apache.hadoop.hive.ql.exec.tez.HiveSplitGenerator.initialize(HiveSplitGenerator.java:196)
> at
> org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable$1.run(RootInputInitializerManager.java:278)
> at
> org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable$1.run(RootInputInitializerManager.java:269)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1807)
> at
> org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable.call(RootInputInitializerManager.java:269)
> at
> org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable.call(RootInputInitializerManager.java:253)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.orc.FileFormatException: Malformed ORC file. Invalid
> postscript length 9
> at org.apache.orc.impl.ReaderImpl.ensureOrcFooter(ReaderImpl.java:297)
> at org.apache.orc.impl.ReaderImpl.extractFileTail(ReaderImpl.java:470)
> at
> org.apache.hadoop.hive.ql.io.orc.LocalCache.getAndValidate(LocalCache.java:103)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat$ETLSplitStrategy.getSplits(OrcInputFormat.java:804)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat$ETLSplitStrategy.runGetSplitsSync(OrcInputFormat.java:922)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat$ETLSplitStrategy.generateSplitWork(OrcInputFormat.java:891)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.scheduleSplits(OrcInputFormat.java:1763)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.generateSplitsInfo(OrcInputFormat.java:1707)
> ... 15 more
> {code}
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