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2.10. High Availability

This section outlines the top new features for high availability.
Composable High Availability Services
The Red Hat OpenStack Platform director now opens the composable service architecture to include high availability services. This means users can split high availability services from the Controller node or scale services with dedicated custom roles. This includes the following high availability services:
  • Load Balancer (HAProxy)
  • Database (MariaDB/Galera)
  • Messaging (RabbitMQ)
  • Redis
  • Block Storage (cinder) Volume
  • Block Storage (cinder) Backup
  • OpenStack Shared File Systems (manila)