[HDFS-3278] Umbrella Jira for HDFS-HA Phase 2

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1.0-beta
• Assignee: Todd Lipcon
• Reporter: Sanjay Radia
• Created: 13/Apr/12 23:43
• Updated: 28/Sep/15 20:50
• Resolved: 14/May/14 17:08

Description

HDFS-1623 gives a high level architecture and design for hot automatic failover of the NN. Branch HDFS-1623 was merged into trunk for tactical reasons even though the work for HA was not complete, Branch HDFS-1623 contained mechanisms for keeping a standby Hot (ie read from shared journal), dual block reports, fencing of DNs, Zookeeper library for leader election etc. This Umbrella jira covers the remaining work for HA and will link all the jiras for the remaining work. Unlike HDFS-1623 no single branch will be created - work will proceed in parallel branches.

Issue Links

• depends upon: HDFS-3042 Automatic failover support for NN HA
• depends upon: HDFS-3077 Quorum-based protocol for reading and writing edit logs
• depends upon: HDFS-3092 Enable journal protocol based editlog streaming for standby namenode