[ZEPPELIN-3610] Cluster Raft module design

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.0
• Fix Version/s: 0.9.0
• Component/s: zeppelin-server
• Labels: Cluster
• Flags: Important
• External issue URL: https://issues.apache.org/jira/browse/ZEPPELIN-3471
• External issue ID: ZEPPELIN-3471
• Assignee: Xun Liu
• Reporter: Xun Liu
• Created: 11/Jul/18 11:04
• Updated: 24/Dec/20 03:20
• Resolved: 28/Sep/18 00:53

Description

By using the Raft protocol, multiple Zeppelin-Server groups are built into a Zeppelin cluster, the cluster State Machine is maintained through the Raft protocol, and the services in the cluster are agreed upon. The Zeppelin-Server and Zeppelin-Interperter services and processes are stored in the Cluster MetaData. Metadata information;

Design document：https://docs.google.com/document/d/1a8QLSyR3M5AhlG1GIYuDTj6bwazeuVDKCRRBm-Qa3Bw/edit#heading=h.la3debsz5sjf

Issue Links

• links to: GitHub Pull Request #3074
• links to: GitHub Pull Request #3156
• links to: GitHub Pull Request #3183