[MAPREDUCE-1908] DistributedRaidFileSystem does not handle ChecksumException correctly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.22.0
• Component/s: contrib/raid
• Hadoop Flags: Reviewed
• Assignee: Ramkumar Vadali
• Reporter: Ramkumar Vadali
• Created: 01/Jul/10 20:40
• Updated: 12/Dec/11 06:18
• Resolved: 11/Oct/10 21:48

Description

ChecksumException reports the offset of corruption within a block,
whereas DistributedRaidFileSystem.setAlternateLocations was expecting it
to report the offset of corruption within the file.

The best way of dealing with a missing block/corrupt block is to just
use the current seek offset in the file as the position of corruption.