[HADOOP-4466] SequenceFileOutputFormat is coupled to WritableComparable and Writable

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.19.0
• Fix Version/s: 0.19.0
• Component/s: io
• Release Note: Ensure that SequenceFileOutputFormat isn't tied to Writables and can be used with other Serialization frameworks.
• Assignee: Chris Wensel
• Reporter: Chris Wensel
• Created: 20/Oct/08 22:17
• Updated: 20/Nov/08 23:38
• Resolved: 23/Oct/08 04:03

Description

For some reason SequenceFileOutputFormat calls asSubclass() for OutputKeyClass and OutputValueClass. This throws a ClassCastException when using non-Writable types with the new Serialization framework.