The hardware requirements for your High Availability Add-on (HAA) are different between development and production environments.
While one node is sufficient for a development environment, three or an odd number of nodes are recommended in order to utilize the clustering features likely needed for your production environment.
Cores per Node
(15 GB for DR deployments)
Note: Always maintain an odd number of nodes. This is required to obtain a quorum needed in failure and failover scenarios.
Default port used for internal proxy traffic.
Default port ranges used for internal cluster traffic.
Used for traffic from the application to the Discovery Service, if applicable.
HTTPS access to the management UI.
8444 , 9080
Default ports used for internal
nginx < - > cnm_http/cm traffic.
Default port used for internal CRDB (Conflict-free Replicated Database) traffic.
Used for metrics exported and managed by
Recommended port for REST API traffic.
Port range for database traffic. By default, HAA uses port
Port range used for internal database shards traffic.
Used for internal
HAA only supports 64-bit operating systems and must be installed on a clean host with no other applications and synchronized with the same NTP server.
- 6.7 - 6.9 (Requires at least Minimal Install configuration)
- 7.0 - 7.6 (Requires at least Minimal Install configuration)
- 6.7 - 6.9
- 7.0 - 7.5
- All 64-bit Versions
Updated about a month ago