Szehon Ho created HIVE-7220:
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Summary: Empty dir in external table causes issue
(root_dir_external_table.q failure)
Key: HIVE-7220
URL: https://issues.apache.org/jira/browse/HIVE-7220
Project: Hive
Issue Type: Bug
Reporter: Szehon Ho
While looking at root_dir_external_table.q failure, which is doing a query on
an external table located at root ('/'), I noticed that latest Hadoop2
CombineFileInputFormat returns split representing empty directories (like
'/Users'), which leads to failure in Hive's CombineFileRecordReader as it tries
to open the directory for processing.
Tried with an external table in a normal HDFS directory, and it also returns
the same error. Looks like a real bug.
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