Managing Cluster

After successfully deploying the PortSIP PBX cluster, you can manage and maintain the system efficiently using the built-in control scripts. These scripts allow you to start, stop, restart, monitor, remove, and upgrade individual cluster services without impacting the core PBX server.

Managing Cluster Servers

The commands in this article apply to cluster servers only (for example, Media, Queue, Meeting, or IVR servers). They must not be executed on the main PBX server.

Supported Service Types

When running cluster management commands, use the -s parameter to specify the service type. The following service names are supported:

  • media-server-only

  • queue-server-only

  • meeting-server-only

  • vr-server-only

Starting a Cluster Server

cd /opt/portsip
sudo /bin/sh cluster_ctl.sh start -s media-server-only

Replace media-server-only with the appropriate service name as required.

Restarting a Cluster Server

Checking Cluster Server Status

Stopping a Cluster Server

Removing a Cluster Server

Managing the Instant Messaging (IM) Server

The IM server is managed independently using a dedicated control script.

Start the IM Server

Restart the IM Server

Stop the IM Server

Check IM Server Status

Remove the IM Server

Managing the Data Flow Server

The Data Flow server is managed independently using a dedicated control script.

Start the Data Flow Server

Restart the Data Flow Server

Stop the Data Flow Server

Check Data Flow Server Status

Remove the Data Flow Server

Adding Servers to the Cluster

As your business grows, you may need to scale your deployment by adding additional cluster servers.

To add new servers:

  1. Follow the guides Preparing Cluster Servers and Configuring Cluster Servers to provision and configure the new nodes.

  2. Restart the resource load balancer and all cluster servers.

Note: The main PBX server does not need to be restarted when adding new cluster servers.

IM Server Scalability Considerations

  • The IM server does not currently support clustered deployment.

  • It is designed to run as a standalone service.

  • With sufficient resources (recommended 16 CPU cores and 16 GB RAM), a single IM server can support up to 50,000 concurrent online users.

  • As a result, adding multiple IM servers is not supported at this time.

Maintenance Window Recommendation

Restarting the resource load balancer and cluster servers will temporarily impact call processing. To minimize service disruption, it is strongly recommended to perform these operations during off-peak hours, such as late night or scheduled maintenance windows.

Upgrading Cluster Servers

Keeping all cluster components aligned with the latest PortSIP PBX release is essential for system stability, performance, and security.

Whenever a new PortSIP PBX version is released, all deployed cluster servers must be upgraded accordingly.

Upgrading the Main PBX Server

First, follow the guide Upgrade to the Latest Version Within v22.x to upgrade the following components:

  • Main PBX server

  • SBC server

  • IM server

  • Data Flow server

Upgrading Cluster Servers

Step 1: Download the Latest Initialization Script

❗ Important This step is mandatory, don't skip this step!

Step 2: Upgrade Individual Cluster Services

Use the -s parameter to specify the service type and the -i parameter to define the target image version.

Media Server

Queue Server

IVR Server

Meeting Server

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