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What is a Crash (technically)... in ASP.NET - CRASH, HANG, HIGH CPU, HIGH MEMORY, DEADLOCK and OUT OF MEMORY

What is a Crash (technically)... in ASP.NET and what to do if it happens?

Many times while troubleshooting performance related issues in ASP.NET/IIS we find that customers come in saying that the ASP.NET process crashes n number of times a day, two or more. Now, the question arises, that is it really a crash, or some Yellow color error message (or a plain "Page cannot be displayed" error) which is shown on the client's browser? Well, as they say, everything that glitters is not gold. On similar grounds, every error thrown on the browser is not a crash. We need to keep multiple things in mind depending on what exactly could have caused the error, and before we decide to call it a crash, we should know what *exactly* is a crash! In the forthcoming series under "Performance" category of my blog, I will discuss basics of CRASH, HANG, HIGH CPU, HIGH MEMORY, DEADLOCK and OUT OF MEMORY issues.
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