[AVRO-1234] Avro MapReduce jobs silently ignore input data without '.avro' extension

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.3
• Fix Version/s: 1.7.6
• Assignee: Dave Beech
• Reporter: Dave Beech
• Created: 17/Jan/13 13:45
• Updated: 23/Jan/14 21:58
• Resolved: 13/Dec/13 00:59

Description

The AvroInputFormat class explicitly checks each input path for a '.avro' extension.

If only some of the input paths have the correct extension, the remainder are silently ignored and not included in the job. However, if none of the input paths have the extension, the job will continue and succeed even though no map tasks are allocated, and no work is done.

This only happens using the old mapred API. The new mapreduce API version will happily read files regardless of extension.

Is the check necessary?