[HIVE-2138] Exception when no splits returned from index

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.8.0
• Fix Version/s: 0.8.0
• Component/s: Indexing
• Hadoop Flags: Reviewed
• Assignee: Syed S. Albiz
• Reporter: Russell Melick
• Created: 01/May/11 00:19
• Updated: 16/Dec/11 23:57
• Resolved: 08/Aug/11 19:07

Description

Running a query that uses indexing but doesn't return any results give an exception.

 java.lang.IllegalArgumentException: Can not create a Path from an empty string
at org.apache.hadoop.fs.Path.checkPathArg(Path.java:82)
at org.apache.hadoop.fs.Path.<init>(Path.java:90)
at org.apache.hadoop.util.StringUtils.stringToPath(StringUtils.java:224)
at org.apache.hadoop.mapred.FileInputFormat.setInputPaths(FileInputFormat.java:282)
at org.apache.hadoop.hive.ql.index.HiveIndexedInputFormat.getSplits(HiveIndexedInputFormat.java:123) 

This could potentially be fixed by creating a new empty file to use for the splits.

Once this is fixed, the index_auto_test_if_used.q can be used.

Issue Links

• is related to: HIVE-1644 use filter pushdown for automatically accessing indexes