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  1. Nuxeo Platform
  2. NXP-14662

Add support for HA Redis



    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 7.1
    • Component/s: Redis


      Redis and HA

      Currently Nuxeo uses Jedis 2.1 and a direct connection to a single Redis instance.
      This basically means that Redis is a SPOF and that we don't provide a fail-over system.
      This is not a big problem since in the current architecture Redis does not play a major role, however :

      • this may change in the future
      • some clients using Nuxeo may need to use Redis in HA anyway

      Redis 2.8, Sentinel 2 and Jedis 2.2+

      Sentinel 2 introduce a way to manage a set of Redis nodes (1 master + slaves) and automatically monitor them and manage the failover.

      Since Jedis 2.2, Jedis lib supports a JedisSentinelPool so it is possible to leverage HA Redis from the client library : this basically means that jedis is able to connect to a Sentinel nodes to fetch cluster configuration.

      Nuxeo Integration

      We need at the very least to upgrade to Redis 2.2, and may be we should go to a much more recent version.

      Anyway, we need to update the RedisConfigurationDescriptor so that instead of setting a single Redis IO/Port we can define a set of Sentinel nodes.


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