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Nginx: Protecting upstream from overload on cache miss
source link: https://blog.jakubholy.net/2015/10/01/nginx-protecting-upstream-from-overload-on-cache-miss/
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Nginx: Protecting upstream from overload on cache miss
October 1, 2015
These 2 magical lines will protect your upstream server from possible overload of many users try to access the same in cached or expired content:
<3 Nginx
You can verify this using Shopify's Toxiproxy.proxy_cache_use_stale updating timeout; # Serve the cached version even when outdated while refreshing it proxy_cache_lock on; # Only one req is allowed to load/refresh the item, others wait / get the stale one
<3 Nginx
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