Hardware Requirements
The hardware requirements for your High Availability Add-on (HAA) are different between development and production environments.
Development Environments
HAA Nodes
1
3+
RAM
6 GB
8 GB
Storage
10 GB
20 GB
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.
Production Environments
HAA Nodes
3
3+
Cores per Node
4
8+
Storage
75 GB
150+ GB
Network
1 G
10+ G
Note: Always maintain an odd number of nodes. This is required to obtain a quorum needed in failure and failover scenarios.
TCP Ports
1968
Default port used for internal proxy traffic.
3333-3339
36379-36380
Default port ranges used for internal cluster traffic.
8001
Used for traffic from the application to the Discovery Service, if applicable.
8443
Used for HTTPS access to the management UI.
8444 , 9080
Default ports used for internal nginx < - > cnm_http/cm traffic.
9081
Default port used for internal CRDB (Conflict-free Replicated Database) traffic.
8070-8071
Used for metrics exported and managed by nginx.
9443
Recommended port for REST API traffic.
10000-19999
Port range for database traffic. By default, HAA uses port 10000.
20000-29999
Port range used for internal database shards traffic.
53, 5353
Used for internal DNS/mDNS traffic.
Important!
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.
RHEL/CentOS 6
- 6.7 - 6.9 (Requires at least Minimal Install configuration)
RHEL/CentOS 7
- 7.0 - 7.6 (Requires at least Minimal Install configuration)
Oracle Linux
- 6.7 - 6.9
- 7.0 - 7.5
Amazon Linux
- All 64-bit Versions
Updated about a month ago