- Plesk for Windows
Website shows the following error from time to time:
CONFIG_TEXT: HTTP Error 503.2 - Service Unavailable
The serverRuntime@appConcurrentRequestLimit setting is being exceeded.
access log there are a lot of the following records appear that point to sub-domain of example.com:
CONFIG_TEXT: W3SVC11 WIN-LL5KAFEGPDU 203.0.113.2 GET /api/company/example - 80 - 203.0.113.2 HTTP/1.1 - - - sub. example.com 200 0 0 20715 71 0
W3SVC11 WIN-LL5KAFEGPDU 203.0.113.2 GET /api/index/getindexexample indexID=58&indexID=51&indexID=61&indexID=52 80 - 203.0.113.2 HTTP/1.1 - - - sub.example.com 200 0 0 32060 117 15
There is a redirection in the website's code that makes a query to its subdomain.
Contact a website developer of example.com in order to check the code of the website: the redirection should be removed, or website code should be adjusted so that queries to sub.example.com are available.