[HDFS-3531] EditLogFileOutputStream#preallocate should check for incomplete writes

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.0.2-alpha
• Component/s: namenode
• Hadoop Flags: Reviewed
• Assignee: Colin McCabe
• Reporter: Colin McCabe
• Created: 07/Jun/12 22:38
• Updated: 11/Oct/12 21:46
• Resolved: 13/Jun/12 06:49

Description

We need to check for short writes when using WritableByteChannel#write and related methods in EditLogFileOutputStream#preallocate so we ensure we've preallocated sufficient space.

Issue Links

• relates to: HDFS-3510 Improve FSEditLog pre-allocation
• relates to: HDFS-3479 backport HDFS-3335 (check for edit log corruption at the end of the log) to branch-1