GitHub user raniers1 created a discussion: KVM HA configuration via database: 
Global Config parameters and enabling HA on uploaded templates

Hi everyone,

I would like to get some feedback regarding the following Global Configuration 
parameters related to KVM High Availability in our staging environment running 
Apache CloudStack.

We know that these settings can be changed via the Web UI, API, or directly in 
the database. We would like to know if there are any concerns or restrictions 
regarding changing these parameters directly in the database.

The parameters in question:

| Parameter | Value |
|---|---|
| kvm.ha.recover.failure.threshold | 1 |
| kvm.ha.degraded.max.period | 300s |
| kvm.ha.activity.check.failure.ratio | ? |
| kvm.ha.activity.check.max.attempts | 5 |

Some questions:

- Is modifying these settings directly in the database safe, or could it cause 
cache inconsistencies in the Management Server (ACS 4.21.0.0 )?

Additionally, we have a second concern: we have templates that were uploaded 
**without HA enabled**. Once a template is uploaded, the HA option is no longer 
available through the Web UI. In this case, is it safe to enable HA directly in 
the database for both the templates and the VMs that were deployed from them?

- Is there any risk in enabling HA directly in the database for existing 
templates and VMs?

Thanks in advance!

GitHub link: https://github.com/apache/cloudstack/discussions/13100

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