Do http headers need to fit in a single FastCGI record?

Maxim Dounin mdounin at
Wed Apr 25 09:07:23 UTC 2012


On Tue, Apr 24, 2012 at 06:13:42PM -0700, Mike Gagnon wrote:

> Hello,
> I have noticed that http requests with large headers leads to 500 errors
> (more than 64k). From a previous discussion on the mailing list (2007),
> Igor said that the entire FastCGI request (except body) must fit into a
> single record.  Is that limitation still true today?

It's still true.  You should get "[alert] ... fastcgi request 
record is too big: ..." in logs when you hit the limit.

Maxim Dounin

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