[AVRO-1232] Output of Avro data using MapReduce with TextOutputFormat is not useful

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.7.3
• Fix Version/s: 1.7.4
• Component/s: java
• Assignee: Garrett Wu
• Reporter: Garrett Wu
• Created: 11/Jan/13 23:35
• Updated: 27/Feb/13 00:54
• Resolved: 18/Jan/13 21:41

Description

When using Avro data as the output key/values of a MapReduce job with TextOutputFormat, you get output that looks like:

org.apache.avro.mapred.AvroKey@1f62000	org.apache.avro.mapred.AvroValue@1
org.apache.avro.mapred.AvroKey@1fe8c4a	org.apache.avro.mapred.AvroValue@1
org.apache.avro.mapred.AvroKey@10b85e	org.apache.avro.mapred.AvroValue@1
org.apache.avro.mapred.AvroKey@877ec817	org.apache.avro.mapred.AvroValue@1
org.apache.avro.mapred.AvroKey@3f904e5b	org.apache.avro.mapred.AvroValue@1
org.apache.avro.mapred.AvroKey@b581cda5	org.apache.avro.mapred.AvroValue@1

I think all that needs to be done is implement toString() on AvroWrapper. It should return its datum as JSON.