NAUTOBOT_DYNAMIC_GROUPS_MEMBER_CACHE_TIMEOUT is documented but not honored

[u1735067]

Environment

• Nautobot version (Docker tag too if applicable): 1.6.4
• Python version: 3.11
• Database platform, version: pg

Steps to Reproduce

1. Set the NAUTOBOT_DYNAMIC_GROUPS_MEMBER_CACHE_TIMEOUT=5 environment variable and start Nautobot
2. Watch the start log

Expected Behavior

Not

Refreshing dynamic group member caches...
DYNAMIC_GROUPS_MEMBER_CACHE_TIMEOUT is set to 0; skipping cache refresh

Observed Behavior

Refreshing dynamic group member caches...
DYNAMIC_GROUPS_MEMBER_CACHE_TIMEOUT is set to 0; skipping cache refresh

Additional informations

https://github.com/search?q=repo%3Anautobot%2Fnautobot%20NAUTOBOT_DYNAMIC_GROUPS_MEMBER_CACHE_TIMEOUT&type=code 😬

Also, is it normal to have a difference with CONTENT_TYPE_CACHE_TIMEOUT (not in constance), tech limitation maybe?

[gsnider2195]

@u1735067 this is an error in the documentation. Since DYNAMIC_GROUPS_MEMBER_CACHE_TIMEOUT is a constance configuration, it doesn't support Environment variables.

Also, is it normal to have a difference with CONTENT_TYPE_CACHE_TIMEOUT (not in constance), tech limitation maybe?

We decided not to use constance for this setting to improve performance since constance requires a trip to the database to retrieve the value of the setting. See this comment