[MAPREDUCE-2571] CombineFileInputFormat.getSplits throws a java.lang.ArrayStoreException

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.21.0
• Fix Version/s: 0.22.0
• Hadoop Flags: Reviewed
• Assignee: Bochun Bai
• Reporter: Bochun Bai
• Created: 07/Jun/11 04:16
• Updated: 12/Dec/11 06:19
• Resolved: 07/Jun/11 22:08

Description

The getSplits methods of
org.apache.hadoop.mapred.lib.CombineFileInputFormat
not work.

...mapred.lib.CombineFileInputFormat(0.20-style) is a proxy for ...mapreduce.lib.input.CombineFileInputFormat(0.21-style)

The 0.21-style getSplits returns ArrayList<...mapreduce.lib.input.CombineFileSplit>
and the 0.20-style delegation calls toArray(...mapred.InputSplit[])

The ...mapreduce.lib.input.CombineFileSplit is based on ...mapreduce.InputSplit
and ...mapred.InputSplit is a interface, not a super-class of ...mapreduce.InputSplit