1058748 - Set SNIPPET_HTTP_MAX_AGE to 10 minutes on snippets.mozilla.com

Status: RESOLVED FIXED

(Infrastructure & Operations Graveyard :: WebOps: Other, task)

Description

[Osmose [:osmose, :mkelly]]

Hi! We'd like to change the SNIPPET_HTTP_MAX_AGE setting on snippets.mozilla.com from 300 to 600. Thanks!

Comment 1

[C. Liang [:cyliang]]

I've added the lines listed below to local.py, pushing out the change to the dev and staging environments.  Please let me know if the changes that I made are acting as expected before I push them out to production.  

# bug 1058748
# Snippets-specific caching
SNIPPET_HTTP_MAX_AGE = 90  # Time to cache HTTP responses for snippets.

Comment 2

[Osmose [:osmose, :mkelly]]

(In reply to C. Liang [:cyliang] from comment #1)
> I've added the lines listed below to local.py, pushing out the change to the
> dev and staging environments.  Please let me know if the changes that I made
> are acting as expected before I push them out to production.  
> 
> # bug 1058748
> # Snippets-specific caching
> SNIPPET_HTTP_MAX_AGE = 90  # Time to cache HTTP responses for snippets.

Dev and stage both have a maxage matching the setting, so they're good. Prod is going to have 600 instead of 90 when you update it though, right? Just wanted to make sure I'm not misunderstanding. :D

Comment 3

[C. Liang [:cyliang]]

My bad with the cut and paste for dev and stage.  I didn't see any SNIPPET_HTTP_MAX_AGE setting in the local.py for those environments and copied the line out of local.py-dist.

I've changed SNIPPET_HTTP_MAX_AGE from 300 to 600 in production and pushed that change out:

$ diff ~/local.py /data/snippets/src/snippets.mozilla.com/snippets/settings/local.py
81c81,82
< SNIPPET_HTTP_MAX_AGE = 300
---
> # bug 1058748 - upped from 300 to 600
> SNIPPET_HTTP_MAX_AGE = 600

Comment 4

[Jake Maul [:jakem]]

Just to filling a blank for anyone watching this, Zeus is already set with a max-age maximum of 6 hours for snippets.mozilla.com, so nothing needs to be changed there to get the benefit of this 300->600 increase. I do see assets being cached in Zeus for up to 10min now, so it does appear to be working. I don't have stats from before the change, but right now the Zeus hit rate is around 95-97%.

Comment 5

[Osmose [:osmose, :mkelly]]

Snippets is sending a matching max-age, so we're good here. Thanks!