- Release Notes
- Hardware and Software Requirements
- Alerts and Monitoring
- Active/Active Disaster Recovery Installation
- Upgrading
Active/Active Disaster Recovery Installation
Configuring DNS Entries
Before installing HAA, you must define your domain using DNS. You must create an A Record for each of the six (or more) Linux servers where you plan to install HAA. At least three servers are required for each of the two datacenter sites. All the A Records associated with a datacenter must correspond to an NS Record.
To configure the DNS entries, take the following steps:
For example:
- Your domain is:
mydomain.com
- You would like to name the HAA cluster
mycluster
-
You have three nodes in the cluster:
node1
(IP address1.1.1.1
)node2
(2.2.2.2
)node3
(3.3.3.3
)
-
In the FQDN field, enter the
mycluster.mydomain.com
value, and add the following records in the DNS table formydomain.com
:mycluster.mydomain.com NS node1.mycluster.mydomain.com node2.mycluster.mydomain.com node3.mycluster.mydomain.com node1.mycluster.mydomain.com A 1.1.1.1 node2.mycluster.mydomain.com A 2.2.2.2 node3.mycluster.mydomain.com A 3.3.3.3
mycluster.mydomain.com NS node1.mycluster.mydomain.com node2.mycluster.mydomain.com node3.mycluster.mydomain.com node1.mycluster.mydomain.com A 1.1.1.1 node2.mycluster.mydomain.com A 2.2.2.2 node3.mycluster.mydomain.com A 3.3.3.3
HAA CRDB Setup
sudo ./rl_uninstall.sh
.
Installing HAA Nodes
Take the following steps on all the nodes in both datacenters:
Creating and Configuring the Clusters
To create a cluster, take the following steps on all the nodes in the datacenter:
Creating a Geo-distributed Database
To create geo-distributed databases, take the following steps:
After activation is complete, the time primary datacenter HAA application's Databases displays an active Redis CRDB
database with a green Sync symbol under Status to indicate enabling of the database sync on the Primary Datacenter.
Configuring UiPath.Orchestrator.dll.config
From the primary datacenter HAA application:
For the secondary datacenter:
- Open the Databases tab and click Configuration.
- Copy the Endpoint before the backslash and apply to the
UiPath.Orchestrator.dll.config
file for the secondary datacenter Orchestrator.