GEO Option to Prevent a Disabled GEO Cluster from Responding
This article relates to LoadMaster firmware version 7.2.53.
By default in previous releases, when a GEO cluster is marked as disabled it would still respond to client queries. As of LoadMaster firmware version 7.2.53, a new check box named Disabled clusters are unavailable has been introduced to the Global Balancing > Miscellaneous Params screen. This option is disabled by default. When it is enabled, requests to the cluster are dropped if a GEO cluster is disabled. The cluster name on the Global Balancing > Manage FQDNs page of the User Interface (UI) will also be displayed in red text.
RESTful Application Programming Interface (API) Details
You can enable or disable the dclustunavail parameter (Disabled clusters are unavailable) by running the modparams command. For example:
0 - Disabled
1 - Enabled