Last post Nov 24, 2017 03:12 AM by Fei Han - MSFT
Nov 23, 2017 11:46 AM|satyam khare|LINK
I got this to my website ,my website has 6 sub domain and all the subdomain and main domain get this error on some fix time.
3:00 am (UTC) for 5-6 min and after that it automatically
goes i think its a pool size error but i put the max pool size in my web.config then to its not getting solved
i read a lot of article to know about this error and tried but i not fond any solution
Nov 23, 2017 01:22 PM|mgebhard|LINK
If the 503 happens at the same time each day then I would assume the web server or IIS are configured to recycle. If the times are NOT consistent and the web server/IIS are NOT configured to recycle then you probably have a code bug like a memory leak.
Take a look at the event logs to see if there is any information that will help. Try running a trace using the Windows Performance Monitor to check for memory usage. Make sure the app pool is configured to log if the pool restarts.
Other than the basics above you might need to come up with a debugging plan to find the issue.
Nov 23, 2017 02:38 PM|satyam khare|LINK
Hi mgebhard thanks for replying
The service unavailable error 503 occours the same time only for a duration of 5-6 min only and goes.How could i resolve this .
Nov 24, 2017 03:12 AM|Fei Han - MSFT|LINK
The service unavailable error 503 occours the same time
When you website becomes unavailable, please check the status of your website and corresponding App pool on IIS, and please check if you App pool is configured to recycle at scheduled time. As mgebhard mentioned, you can debug further into what is causing
the issue by monitoring the usage of server resources and checking logs etc.