I
expect mod_cache/mod_mem_cache is close to moving out of experimental. I
have no confidence in mod_disk_cache (mainly because I have not spent much time
on it in months). None of the changes I am proposing would substantially
impact the stability (famous last words :-).
Bill
-----Original Message-----what i remember is cache is able to cache unknown size document with MaxStreamingBuffer.
From: Estrade Matthieu [mailto:[EMAIL PROTECTED]]
Sent: Thursday, December 12, 2002 11:54 AM
To: [EMAIL PROTECTED]
Subject: Re: mod_cache CacheMaxStreamingBuffer
i will try to draw it:
first brigade, no length, if no EOS bucket, saving data in temp brigade
second brigade, if no EOS, concat data to temp_brigade
until finding an EOS bucket, or total length is more than MaxStreamingBuffer.
All of this is starting line 630 of mod_cache.c
then, write_headers, and write_body (with temp brigade if the document is handled with more than 1 brigade), which are pointing on disk or mem cache writing functions depending on setting.
how long do you think the cache will stay in experimental
I am using it a lot in my product which is used by many customers
I found any big problems
in worker, reverse_proxy with mem_cache, i have like 300 request on backend for 120 000 request on reverse proxy
It increase performance a lot
regards,
Matthieu
Bill Stoddard wrote:
I confirm the CacheMaxStreamingBuffer is a source of misconfiguration Using the MCacheMaxObjectSize could me a good thing. In case of CacheMaxStreamingBuffer used, i don't know how MCacheMaxObjectSize is used for because if a document is bigger than MaxStreamingBuffer, it will be never cached. are you sure MaxStreamingBuffer is not used in disk_cache ? this directive is to store all the brigade before saving the entire data with the write_headers and write_body functions, pointing on disk or mem writing functions. I think it's the same for disk and mem cache.I need to look at the old code, but if i recall correctly, mod_mem_cache would reject attempting to cache an object whose length was unknown (see the call to cache_create_entity() in mod_cache). mod_disk_cache otoh would happily attempt to cache objects whose size was not know at the start. Remember that mod_disk_cache is just writing cache objects to disk and does not need to allocate memory to hold/prefetch the object.In the same time, could you answer my old mail with the CacheSlashEndingUrl patch i made is usefull or not ?Yea, I was just looking at that. I think we can eliminate that check. I was originally afraid that this would muck up negotiation but the cache does not work with negotiated content now anyway. Bill _____________________________________________________________________ GRAND JEU SMS : Pour gagner un NOKIA 7650, envoyez le mot IF au 61321 (prix d'un SMS + 0.35 euro). Un SMS vous dira si vous avez gagné. Règlement : http://www.ifrance.com/_reloc/sign.sms
