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Ports & Networking

Clustron DKV uses different types of ports for communication between managers, nodes, and clients.

Understanding these ports is essential for proper setup and troubleshooting.

Port Types Overview​

Clustron uses three categories of ports:

  • Management Port → manager communication
  • Cluster Ports → node-to-node communication
  • Client Ports → client-to-node communication

Firewall Configuration​

The Clustron installer automatically opens the required firewall ports on the local machine.

The following ranges are configured during installation:

Management:              7801–7810
Cluster Communication:   7811–7860
Client Communication:    7861–7899

These ranges are designed to support multiple nodes on a single machine.

Important​

  • These rules apply to the local machine only
  • In multi-machine setups, ensure ports are accessible between machines
  • Network firewalls or cloud security groups must allow this traffic

Management Port (7801)​

Each machine runs one manager on the management port.

Default: 7801

Purpose​

  • Administrative commands
  • Store creation and management
  • Cluster coordination

Usage​

Connect-DkvManager -Managers 10.0.0.11:7801

Cluster Ports​

Cluster ports are used for communication between nodes.

These ports are defined using ClustronPort when creating a store.

Example​

ClustronPort = 7811 → nodes use 7811, 7812, ...

Purpose​

  • Node-to-node communication
  • Data synchronization
  • Cluster coordination

Client Ports​

Client ports are used for client connections.

These are defined using ClientPort.

Example​

ClientPort = 7861 → nodes use 7861, 7862, ...

Purpose​

  • Application connections
  • Client operations (Put/Get/Delete, etc.)

How Ports Work Together​

Client → Client Port → Node  
Node ↔ Cluster Port ↔ Node  
Admin → Management Port → Manager

Single Machine Setup​

  • All ports run on the same machine
  • No external networking required
  • Ensure ports do not conflict

Multi-Machine Setup​

  • Ports must be accessible across machines
  • Firewall rules must allow traffic
  • Use reachable IP addresses (not localhost)

Common Issues​

Port Already in Use​

  • Ensure selected ports are free
  • Avoid overlapping ranges

Clients Cannot Connect​

  • Verify client port is open
  • Check firewall rules
  • Ensure store is running

Nodes Not Joining Cluster​

  • Verify cluster ports are open
  • Check connectivity between machines

What’s Next​

👉 Continue to Monitoring & Metrics to observe store behavior