opendev/system-config
Code Issues Proposed changes

Set CacheMaxExpire to 1h

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We want to limit the time we remember possibly broken index responses
which we sometimes receive from the pypi CDN. We cannot set this per
location, so this is a comprise between reducing the impact of bad eggs
in the cache and trying not to throw out the good eggs too fast.

Change-Id: If88f10cb7e3cebfa9c37a71d284d513f25b8bb52
This commit is contained in:
Dr. Jens Harbott 2021-12-17 11:40:51 +01:00
parent 42df57b545
commit 84278365d0
1 changed files with 5 additions and 0 deletions
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5
playbooks/roles/mirror/templates/mirror.vhost.j2
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@ -51,6 +51,11 @@ ErrorLogFormat "[%{cu}t] [%-m:%l] [pid %P:tid %T] %7F: %E: [client\ %a] %M% , \
# 5GiB
CacheMaxFileSize 5368709120
CacheStoreExpired On
# NOTE(frickler): 1h is a compromise between wanting to cache larger
# files for longer, like wheels and tarballs, but reducing the impact
# of broken or outdated index pages which we get delivered from pypi
# CDN sometimes.
CacheMaxExpire 3600
# Pip sets Cache-Control: max-age=0 on requests for pypi index pages.
# This means we don't use the cache for those requests. This setting
# should force the proxy to ignore cache-control on the request side