[HDFS-1522] Merge Block.BLOCK_FILE_PREFIX and DataStorage.BLOCK_FILE_PREFIX into one constant

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 2.7.0
• Component/s: datanode
• Labels: patch
• Target Version/s: 2.7.0
• Hadoop Flags: Reviewed

Release Note

This merges Block.BLOCK_FILE_PREFIX and DataStorage.BLOCK_FILE_PREFIX into one constant. Hard-coded
literals of "blk_" in various files are also updated to use the same constant.

• Assignee: Dongming Liang
• Reporter: Konstantin Shvachko
• Created: 01/Dec/10 00:29
• Updated: 12/May/16 18:14
• Resolved: 05/Mar/15 02:01

Description

Two semantically identical constant Block.BLOCK_FILE_PREFIX and DataStorage.BLOCK_FILE_PREFIX should merged into one. Should be defined in Block, imo.
Also use cases of "blok_", like in DirectoryScanner should be replaced by the this constant.