http-status-code-503

How to Detect cause of 503 Service Temporarily Unavailable error and handle it?

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There is of course some apache log files. Search in your apache configuration files for ‘Log’ keyword, you’ll certainly find plenty of them. Depending on your OS and installation places may vary (in a Typical Linux server it would be /var/log/apache2/[access|error].log). Having a 503 error in Apache usually means the proxied page/service is not available. … Read more

IIS7: A process serving application pool ‘YYYYY’ suffered a fatal communication error with the Windows Process Activation Service

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I was debugging the problem for the better part of the day and when I was close to burning the building I discovered the Process Monitor tool from Sysinternals. Set it to monitor w3wp.exe and check last events before it exits after you fire a request in the browser. Hope that helps further readers.

What possibilities can cause “Service Unavailable 503” error? [closed]

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Your web pages are served by an application pool. If you disable/stop the application pool, and anyone tries to browse the application, you will get a Service Unavailable. It can happen due to multiple reasons… Your application may have crashed [check the event viewer and see if you can find event logs in your Application/System … Read more