MesosCon EU 2016

For ArangoDB 3.0 we have implemented the Raft consensus protocol in ArangoDB, thereby creating a high-performance resilient K/V store “Agency” based on Raft’s replicated log. This makes it possible to use ArangoDB instead of Zookeeper, Consul or etcd to create resilient distributed applications. Mesos and thus DC/OS are the ideal ecosystem to develop and run distributed applications, and all such applications need fault tolerant management and synchronization between the various tasks.
Features and their benefits:

- transactions involving multiple keys: simpler application logic
- complex redis-like data manipulations: less roundtrips, higher performance
- powerful preconditions for write transactions: less roundtrips, higher performance
- JSON-based HTTP/REST API: accessible from nearly all languages
- subscription to HTTP callbacks: fast reaction on changes
- user-defined supervision tasks JavaScript running in leader: easier implementation of resilience logic

As known from ArangoDB, deployment on Mesos can be done with a single click or command. By the beginning of the conference, we will have tortured ArangoDB Agency with Jepsen tests and I will announce the results in the talk, whatever they are.