[HDFS-4079] Add SnapshotManager

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Snapshot (HDFS-2802)
• Component/s: namenode
• Hadoop Flags: Reviewed
• Assignee: Tsz-wo Sze
• Reporter: Tsz-wo Sze
• Created: 19/Oct/12 00:35
• Updated: 21/Oct/12 21:36
• Resolved: 21/Oct/12 21:36

Description

SnapshotManager maintains a list for all the snapshottable directories in the namespace. It also supports snapshot related methods such as setting a directory to snapshottable, creating a snapshot, etc.