Hi, There:
I'm Nginx newbie. I have a question regarding how nginx lookup a
cached resource.
As far as I can tell, given a cache-key k. Nginx uses crc32(k) as
as the key to lookup
the cached resource in a RB tree, and use md5(k) verify if conflict take
place; the
key k per se is not used for looking up resource. Is my understanding
correct?
If so, how can we guarantee that crc32 and md5 combined can uniquely
identify a resource?
Thanks
Shuxin
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