Currently to read files without .avro extension, users have to set the flag avro.mapred.ignore.inputs.without.extension to false (by default it is true). The ticket aims to change the default value to false. The reasons to do that are:
- Other systems can create avro files without extensions. When users try to read such files, they get just partitial results silently. The behaviour may confuse users.
- Current behavior is different behavior from another supported datasource CSV and JSON.