Technical Tip: HA Secondary node is stuck in reload loop

Description

Solution

This can usually be solved by disabling HA to stop the reloading of the Secondary unit, and then swapping roles, waiting for sync, and then reverting to the original roles.

1. On the Primary unit, stop reloading of the secondary by running:

config system ha     set mode off end

2. Change roles:

On the Secondary unit (unit B):

config system ha     set mode primary end

On the Primary unit (unit A):

config system ha     set mode secondary end

3. Wait for synchronization (unit A may reload once), then swap back to the original roles.

On unit B:

config system ha     set mode secondary end

On unit A:

config system ha     set mode primary end

To verify that everything is working correctly, perform a config change on the primary unit and check that it was synchronized correctly on the secondary unit.

For example, create a dummy session profile.

Primary # config profile session     edit test-profile end

Then, verify that the setting was correctly transferred to the secondary unit.

Primary # get profile session

== [ session_basic_predefined ]
== [ Outbound_Session ]
== [ Inbound_Session ]
== [ test-profile ]

Secondary # get profile session

== [ session_basic_predefined ]
== [ Outbound_Session ]
== [ Inbound_Session ]
== [ test-profile ]

If switching the roles does not fix the issue (i.e., the secondary unit still keeps reloading), create a ticket with support and provide the following information:

1. Configuration backup from both units.
2. The output of the following commands, also from both units:

diagnose sys ha show diagnose sys ha show global