Dave Beech created AVRO-1234:
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             Summary: Avro MapReduce jobs silently ignore input data without 
'.avro' extension
                 Key: AVRO-1234
                 URL: https://issues.apache.org/jira/browse/AVRO-1234
             Project: Avro
          Issue Type: Bug
            Reporter: Dave Beech


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?

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