Scaling the Cluster
Scaling a cluster includes adding or removing nodes and performing rolling upgrades.
ASI clusters automatically rebalance and update membership, so scaling operations are straightforward.
Add a Node
To scale out, simply install ASI on a new machine and join it to the cluster.
- Install ASI as per Install Additional Nodes guide
- Add the node to the load balancer and include the health check, see Load Balancers page
Remove a Node
Removing a node requires no special cluster operations.
If a node is shut down or destroyed, the cluster will automatically update its membership.
Recommended steps:
- Disable or drain the node in the load balancer
- Stop ASI services:
- Remove or decommission the machine
- Verify the updated membership through the Management Console
Rolling Upgrades / Patching
Rolling upgrades are simple: upgrade nodes one at a time while keeping the cluster running.
Typical cycle:
- Stop ASI on the node
- Upgrade ASI
- Start services
The cluster will automatically detect upgraded nodes as they come back online.