[HDFS-4308] addBlock() should persist file blocks once

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha
• Fix Version/s: 2.0.3-alpha
• Component/s: namenode
• Target Version/s: 2.0.3-alpha
• Hadoop Flags: Reviewed
• Assignee: Plamen Jeliazkov
• Reporter: Konstantin Shvachko
• Created: 13/Dec/12 02:01
• Updated: 15/Feb/13 13:11
• Resolved: 29/Dec/12 04:29

Description

FSNamesystem.getAdditionalBlock() persists all file blocks twice, first in dir.removeBlock() using OP_ADD, then immediately after that in dir.persistBlocks() using OP_UPDATE_BLOCKS.
This should be aggregated in one call to logEdit().