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Posted to issues@spark.apache.org by "Dongjoon Hyun (JIRA)" <ji...@apache.org> on 2017/10/12 02:38:00 UTC
[jira] [Created] (SPARK-22258) Writing empty dataset fails with ORC
format
Dongjoon Hyun created SPARK-22258:
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Summary: Writing empty dataset fails with ORC format
Key: SPARK-22258
URL: https://issues.apache.org/jira/browse/SPARK-22258
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.3.0
Reporter: Dongjoon Hyun
Priority: Critical
Since SPARK-8501, Spark doesn't create an ORC file for empty data sets. However, SPARK-21669 is trying to get the length of the written file and fails with FileNotFoundException. This is a regression at 2.3.0 only. We had better have a test case to prevent future regression.
{code}
scala> Seq("str").toDS.limit(0).write.format("orc").save("/tmp/a")
17/10/11 19:28:59 ERROR Utils: Aborting task
java.io.FileNotFoundException: File file:/tmp/a/_temporary/0/_temporary/attempt_20171011192859_0000_m_000000_0/part-00000-aa56c3cf-ec35-48f1-bb73-23ad1480e917-c000.snappy.orc does not exist
at org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:611)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:824)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:601)
at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:421)
at org.apache.spark.sql.execution.datasources.BasicWriteTaskStatsTracker.getFileSize(BasicWriteStatsTracker.scala:60)
{code}
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