[HADOOP-10855] Allow Text to be read with a known length

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.6.0
• Component/s: io
• Target Version/s: 2.6.0
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 17/Jul/14 16:20
• Updated: 01/Dec/14 03:10
• Resolved: 23/Jul/14 00:29

Description

For the native task work (MAPREDUCE-2841) it is useful to be able to store strings in a different fashion than the default (varint-prefixed) serialization. We should provide a "read" method in Text which takes an already-known length to support this use case while still providing Text objects back to the user.

Issue Links

• relates to: MAPREDUCE-2841 Task level native optimization