| Lucas_Werkmeister_WMDE added a comment. |
This change was deployed for about four hours yesterday, and during that time it seems to have improved the caching behavior a lot: based on Grafana data (permalink), the overall hit rate went from 8.5% to 60%.
awk -F';' ' $1=="hit" { hit+=$3 } $1=="miss" { miss+=$3 } ENDFILE { print 100*hit/(hit+miss) "%"; hit=0; miss=0; } ' without-change.csv with-change.csv
However, it may also have caused T179156: 503 spikes and resulting API slowness starting 18:45 October 26 :/
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To: WMDE-leszek, Lucas_Werkmeister_WMDE
Cc: Krinkle, aaron, gerritbot, Ladsgroup, daniel, Aklapper, Jonas, Lucas_Werkmeister_WMDE, Lahi, Lordiis, GoranSMilovanovic, Adik2382, Th3d3v1ls, Ramalepe, Liugev6, QZanden, Lewizho99, Maathavan, Agabi10, Wikidata-bugs, aude, Mbch331
Cc: Krinkle, aaron, gerritbot, Ladsgroup, daniel, Aklapper, Jonas, Lucas_Werkmeister_WMDE, Lahi, Lordiis, GoranSMilovanovic, Adik2382, Th3d3v1ls, Ramalepe, Liugev6, QZanden, Lewizho99, Maathavan, Agabi10, Wikidata-bugs, aude, Mbch331
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