Change Details

Beta cluster varnish endpoints are running Ubuntu Precise, should be Debian Jessie to match production. This is indirectly causing some intermittent 503 issues due to prod+beta VCL changes related to gzip, which are tripping varnish bugs, which are present in the last varnish versions we built for precise (3.0.5plus~x-wm7), but fixed in the newer versions we're running on jessie (3.0.6plus-wm6).

Beta cluster varnish endpoints are running Ubuntu Precise, should be Debian Jessie to match production. This is indirectly causing some intermittent 503 issues due to prod+beta VCL changes related to gzip, which are tripping varnish bugs, which are present in the last varnish versions we built for precise (3.0.5plus~x-wm7), but fixed in the newer versions we're running on jessie (3.0.6plus-wm6). Actions to be conducted: [] create Jessie instances [] prepare puppet.git patches to update Varnish config hash and DNS alias IP addresses [] prepare mediawiki-config.git patch to change the HTCP purging entries [] switch labs public/private IP binding in OpenStack manager (breaking change) Then: [] make sure purges are properly emitted [] verify a labs instance can reach the various FQDN entries (such as en.wikipedia.beta.wmflabs.org) [] run a few browser tests jobs that hits beta (to be determined)

Beta cluster varnish endpoints are running Ubuntu Precise, should be Debian Jessie to match production. This is indirectly causing some intermittent 503 issues due to prod+beta VCL changes related to gzip, which are tripping varnish bugs, which are present in the last varnish versions we built for precise (3.0.5plus~x-wm7), but fixed in the newer versions we're running on jessie (3.0.6plus-wm6). Actions to be conducted: [] create Jessie instances [] prepare puppet.git patches to update Varnish config hash and DNS alias IP addresses [] prepare mediawiki-config.git patch to change the HTCP purging entries [] switch labs public/private IP binding in OpenStack manager (breaking change) Then: [] make sure purges are properly emitted [] verify a labs instance can reach the various FQDN entries (such as en.wikipedia.beta.wmflabs.org) [] run a few browser tests jobs that hits beta (to be determined)