connect() to unix:/run/php/php7.4-fpm.sock failed (11: Resource temporarily unavailable) while connecting to upstream

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You have magento >=2.3.5 running in nginx server and your customer might face 502 error from time to time. Not always but from time to time. You check your error log for nginx and find this “4746#4746: *1502011 connect() to unix:/run/php/php7.4-fpm.sock failed (11: Resource temporarily unavailable) while connecting to upstream” . So what you do […]