Netbox v4.0.5 django-debug-toolbar==4.4.2 Delays of Several Seconds on each request

[marsteel]

Deployment Type

Self-hosted

NetBox Version

v4.0.5

Python Version

3.10

Steps to Reproduce

Upgrade to Netbox v4.0.5 from v4.0.3
Click each items like SITES/Sites or RACKS/Racks, it takes ~10seconds for web browser to load result.

Expected Behavior

Upgrade to Netbox v4.0.5 from v4.0.3
Click each items like SITES/Sites or RACKS/Racks, it takes <1 seconds for web browser to load result.

Observed Behavior

Upgrade to Netbox v4.0.5 from v4.0.3
Click each items like SITES/Sites or RACKS/Racks, it takes ~10seconds for web browser to load result.

[marsteel]

Seems it is caused by django-debug-toolbar==4.4.2 in requirements.txt
There are delay if host can't resolve host.docker.internal

The workaround is add entry for host.docker.internal in /etc/hosts

127.0.0.1 localhost
127.0.0.1 host.docker.internal

or rollback django-debug-toolbar==4.4.2 to 4.3.0 in requirements.txt

There is the discussion. django-commons/django-debug-toolbar#1927

[jeremystretch]

Thanks for taking the time to report this @marsteel! Turns out this is the reason I had an issue with DNS rate limiting last week. 😆