Overview (Prime High Availability)

NMS Prime is a CRM, BSS and OSS platform for ISPs and Telcos.

What this app does

Prime High Availability (ProvHA) is the HA, failover, and load-balancing package for NMS Prime. It pairs a master (read/write) with a slave (read-only DB, shares provisioning load) so DHCP, TFTP, time, and DNS keep serving when one host fails — using Linux/open-source standards (ISC DHCP failover, Galera, rsync/sshfs, and related services).

It answers:

1. Who is master? — Role from provha.env and GUI master/slave IPs

2. Does provisioning survive a host failure? — DHCP failover peers; TFTP / time / DNS peer lists

3. How is slave kept in sync? — Periodic slave config rebuild; master→slave file sync

4. What about monitoring in HA? — Cacti via sshfs/autofs; Icinga in HA scenarios (see install guide)

Who uses it

Main features

1. Master / slave ProvHA configuration in the GUI

2. ISC DHCP failover (primary/secondary peers)

3. TFTP, time, and DNS peer addressing for HA

4. Slave config rebuild + master file sync commands

5. Slave cleanup (move non-needed system jobs)

6. Integration path for Monitoring (Cacti) and Detect (Icinga) in HA

Handled by neighbouring apps

Main stories

1. Run two NMS Prime hosts as master + slave with Galera

2. Keep DHCP leases and provisioning alive if one host fails

3. Sync config files and rebuild slave periodically

4. Prove failover in a controlled acceptance test

At a glance