[HDFS-2212] Refactor double-buffering code out of EditLogOutputStreams

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.0
• Component/s: namenode
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 27/Jul/11 23:50
• Updated: 15/Nov/11 00:52
• Resolved: 28/Jul/11 05:46

Description

This is a small cleanup that makes EditLogFileOutputStream and EditLogBackupOutputStream more consistent with each other on how they buffer edits. It simply refactors the double-buffering behavior into a new class.