Mirantis OpenStack HA

Source: Internet
Author: User
Tags haproxy
  • MySQL uses Galera to do active/active clusters, while using pacemaker, because Galera MySQL uses the leadership of the election mechanism quorum, so the control node of at least three
  • RABBITMQ using mirrored queues, run in active/active mode
  • Stateful services such as neutron agents use pacemaker to do active/passive deployment
  • Stateless service front end plus haproxy, so stateless service is not deployed on compute nodes

The HA deployment diagram for controller node (at least 3 nodes) is as follows, with each controller node running a haproxy that manages a VIP for all controller node, providing load balancing for HTTP and TCP protocols.

Mirantis OpenStack HA

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