[HDFS-4126] Add reading/writing snapshot information to FSImage

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Snapshot (HDFS-2802)
• Fix Version/s: Snapshot (HDFS-2802)
• Component/s: datanode, namenode
• Hadoop Flags: Reviewed
• Assignee: Jing Zhao
• Reporter: Suresh Srinivas
• Created: 29/Oct/12 02:28
• Updated: 23/Jan/13 13:15
• Resolved: 23/Jan/13 02:48

Description

After the changes proposed in HDFS-4125 is completed, reading and writing snapshot related information from FSImage can be implemented. This jira tracks changes required for:

1. Loading snapshot information from FSImage
2. Loading snapshot related operations from editlog
3. Writing snapshot information in FSImage
4. Unit tests related to this functionality