Shlomi Noach (GitHub) delivers the talk, "Orchestrator on Raft: Internals, Benefits and Considerations", on DAY 1 of the Percona Live Open Source Database Conference 2018, 4/24, at Santa Clara, CA.
Orchestrator uses Raft consensus as of version 3.x. This setup improves the high availability of both the orchestrator service itself as well as that of the managed topologies and allows for easier operations.
This session will briefly introduce Raft consensus concepts, and elaborate on orchestrator's use of Raft: from leader election, through high availability, cross DC deployments and DC fencing mitigation, and lightweight deployments with SQLite.
Of course, nothing comes for free, and we will discuss considerations to using Raft: expected impact, eventual consistency, and time-based assumptions.
Orchestrator/Raft is running in production at GitHub, Wix and other large and busy deployments.
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