Use Load Balancers
Use load balancers are utilized to balance network traffic across MDO application servers. MDO application servers are recommended to be configured with active-active server configuration. This means all servers are actively load balanced and may reside in different data centers for a data center physical fault tolerant solution.
Notes:
- Sticky Sessions policy will be required at the load balancer. MDO session data is not replicated across clustered servers.
- Load balancer mapping table.
| Servlet Context | Server Port | Server Context |
| /MDOSF | 8080 | /MDOSF |
| /MDO-WS | 9090 | /MDO-WS |
Database High Availability
MDO uses Microsoft SQL Server. MDO supports the below techniques to achieve high availability. Customers can determine the best option based on regulatory and compliance requirements.
- Replication
- Log Shipping
- Mirroring
- Always-On Failover Clustering
- Always-On Availability Groups
For further details on each technique it is recommended to contact a Database Administrator.
Elastic Search High Availability
Elastic search nodes are recommended to be setup in HA mode. Follow the link below for further information and configuration guidance.
https://www.elastic.co/guide/en/elasticsearch/reference/5.5/getting-started.html
RabbitMQ High Availability
RabbitMQ nodes are recommended to be setup in HA mode. For additional information and configuration guidance, follow the link below.