[BOOKKEEPER-259] Create a topic manager using versioned write for leader election

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.2.0
• Component/s: hedwig-server
• Assignee: Sijie Guo
• Reporter: Sijie Guo
• Created: 15/May/12 03:10
• Updated: 02/May/13 02:29
• Resolved: 06/Aug/12 11:02

Description

currently, ZkTopicManager use zookeeper ephemeral node to store the owner information of a topic. so the znode will disappear when the owner hub server is down, the leader election is quite simple based on this model.

but for most key-value storage, there is no similar concepts like ephemeral node, but just providing versioned writes. so it would be better to provide a topic manager using versioned writes.

Issue Links

• blocks: BOOKKEEPER-283 Improve Hedwig Console to use Hedwig Metadata Manager.
• depends upon: BOOKKEEPER-250 Need a ledger manager like interface to manage metadata operations in Hedwig
• is depended upon by: BOOKKEEPER-262 Implement a meta store based hedwig metadata manager.