In message <[email protected]>, Daniel Sell wr
ites:
>For example, these two URLs result in the same content:
>
>/index.php?a=1&b=2
>/index.php?b=2&a=1
>
>The URL generation is out of my control, and there are many possible
>parameters.
>
>As far as I can tell, Varnish will generate different hashes for these two
>URLs. Is there anything I can do?
If you know the parameters are from a finite set, you can rewrite
vcl_hash to do them one at a time in a specific order:
hash_data (the url)
hash_data (param 'a')
hash_data (param 'b')
hash_data (param 'c')
A Vmod which sorts the params alphabetically might be a good idea if
this is a general problem
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[email protected] | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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