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How does Nginx look-up cached resource?

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Shuxin Yang

September 03, 2015 09:40PM

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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Subject	Author	Views	Posted
How does Nginx look-up cached resource?	Shuxin Yang	939	September 03, 2015 09:40PM
Re: How does Nginx look-up cached resource?	Maxim Dounin	305	September 04, 2015 09:24AM
Re: How does Nginx look-up cached resource?	Sergey Brester	347	September 04, 2015 11:38AM
Re: How does Nginx look-up cached resource?	Maxim Dounin	337	September 04, 2015 02:12PM
Re: How does Nginx look-up cached resource?	Sergey Brester	446	September 04, 2015 02:58PM
Re: How does Nginx look-up cached resource?	Maxim Dounin	297	September 04, 2015 03:44PM
Re: How does Nginx look-up cached resource?	Sergey Brester	333	September 04, 2015 05:02PM
Re: How does Nginx look-up cached resource?	Maxim Dounin	342	September 05, 2015 08:10PM
Re: How does Nginx look-up cached resource?	Sergey Brester	385	September 07, 2015 09:36AM
Re: How does Nginx look-up cached resource?	Maxim Dounin	361	September 07, 2015 12:20PM
Re: How does Nginx look-up cached resource?	Sergey Brester	302	September 07, 2015 12:34PM
Re: How does Nginx look-up cached resource?	Gena Makhomed	362	September 04, 2015 05:22PM
Re: How does Nginx look-up cached resource?	Maxim Dounin	326	September 05, 2015 09:58PM
Re: How does Nginx look-up cached resource?	Gena Makhomed	305	September 07, 2015 10:46AM
Re: How does Nginx look-up cached resource?	Maxim Dounin	292	September 07, 2015 01:00PM
Re: How does Nginx look-up cached resource?	Gena Makhomed	431	September 07, 2015 03:30PM
Re: How does Nginx look-up cached resource?	Sergey Brester	405	September 07, 2015 05:24PM
Re: How does Nginx look-up cached resource?	Gena Makhomed	558	September 07, 2015 07:20PM
Re: How does Nginx look-up cached resource?	Maxim Dounin	478	September 07, 2015 09:42PM
Re: How does Nginx look-up cached resource?	Gena Makhomed	440	September 08, 2015 05:08PM
Re: How does Nginx look-up cached resource?	Maxim Dounin	466	September 09, 2015 01:18PM
Re: How does Nginx look-up cached resource?	Sergey Brester	337	September 10, 2015 05:58AM
Re: How does Nginx look-up cached resource?	Sergey Brester	331	September 10, 2015 08:56AM
Re: How does Nginx look-up cached resource?	Maxim Dounin	357	September 10, 2015 10:48AM
Re: How does Nginx look-up cached resource?	Sergey Brester	318	September 10, 2015 11:08AM
Re: How does Nginx look-up cached resource?	Maxim Dounin	322	September 10, 2015 11:34AM
Re: How does Nginx look-up cached resource?	Sergey Brester	332	September 10, 2015 11:56AM
Re: How does Nginx look-up cached resource?	Maxim Dounin	346	September 10, 2015 01:00PM
Re: How does Nginx look-up cached resource?	Sergey Brester	610	September 10, 2015 04:54PM

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