HTTP Error 503. The service is unavailable [IIS 8]

Question

I get this error every time after 1 week or 2 weeks, starting and stopping pool also does not solve the problem. when I restart the server then the problem gets resolved.

Thuyavan Ganesan · Answer

Hi, If you are restarting the server to fix this HTTP Error 503. then its a problem with your appliacation pool running out of RAM. PLease try to focus on the native memory leak in IIS Please have al look at the link below..it can shed some lights. Please let me know . Dont forget to mark as an answer if it helps!. Thanks https://serverfault.com/questions/544837/http-error-503-the-service-is-unavailable/549747#549747

Jignesh Kumar · Answer

Hi Merajuddin, I think problem with this property of A pplication pool 'Rapid Fail Protection'. Could you please check below link. https://stackoverflow.com/questions/40555924/iis-8-http-error-503-the-service-is-unavailable For more details : https://support.plesk.com/hc/en-us/articles/213917405-Application-pool-stops-randomly-within-in-a-specified-time-period-automatically-disabled-due-to-a-series-of-failures https://docs.microsoft.com/en-us/iis/configuration/system.applicationhost/applicationpools/add/failure

Thuyavan Ganesan · Answer

Hi, If you are restarting the server to fix this HTTP Error 503. then its a problem with your appliacation pool running out of RAM. PLease try to focus on the native memory leak in IIS Please have al look at the link below..it can shed some lights. Please let me know . Dont forget to mark as an answer if it helps!. Thanks