How is HttpContext TraceIdentifier generated in .NET Core?
16,704
Solution 1
Kestrel generates the request ID as {ConnectionId}:{Request number}. The connection id is the base32 encoded version of a long using the alphabet 1-9, and A - V. The request count is the number of requests over that connection. The nth request over a specific connection is {ConnectionId}:{n}
Solution 2
It is DateTime.UtcNow.Ticks base32 encoded.
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Author by
DarthVader
Updated on September 21, 2020Comments
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DarthVader over 3 years
How is HttpContext TraceIdentifier (aka Correlation-Id) generated?
I request a page through controller which gives me the following TraceId:
0HLEACIU86PT6:0000000DThe page fires an ajax call which has the following TraceId:
0HLEACIU86PT7:00000005As you can see, they are very similar. Is it based on time?
Why didn't I get the same TraceIdentifier?
How can I ensure the same TraceIdentifier?
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Brad almost 6 yearsThe page request and the AJAX request are two separate requests therefore different TraceId.
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davidfowl almost 6 yearsThis implementation isn't used in Kestrel.
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Konrad almost 6 yearsAnd how
ConnectionIdis generated? -
davidfowl almost 6 years
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Dave Black over 4 years@davidfowl is there a way to override how Kestrel generates the CorrelationId? I'd like to have it always use a GUID. -
Kiran B almost 3 yearsHi @DaveBlack The HttpContext.TraceIdentifier has get and set defined, So you can overwrite this in a middleware docs.microsoft.com/en-us/dotnet/api/…
