in particular, suppose 5 requestors request the same URL in a span of 10 seconds, where a response takes 30min (no timeouts), and is valid for 1hr. Is there a way to make the 4 requests following the first wait for the first request's results? If its not possible directly with mod_cache, is it possible via filters, and had anyone done something similar? About the end goal: we have an xml database that we use as little more than blob storage (we don't do any element indexing, etc, just store xml as blobs). For our purposes, mod_cache sounds like a smarter way to go, because rather than db semantics like select blob B from database if B = null, get data store data as B in database continue we'd have select B from http://our_apache_with_mod_cache/B and mod_cache transparently executes if B = null, get data store data as B in database continue The one hang up we have is that some requests can be very expensive - 2hrs to generate, 10mb of data. We've built semantics around our blob db to queue identical requests, but can we get this free or cheaply from apache + mod_cache + special code? ------------------------------------------------------------------------------ This message is intended only for the personal and confidential use of the designated recipient(s) named above. If you are not the intended recipient of this message you are hereby notified that any review, dissemination, distribution or copying of this message is strictly prohibited. This communication is for information purposes only and should not be regarded as an offer to sell or as a solicitation of an offer to buy any financial product, an official confirmation of any transaction, or as an official statement of Lehman Brothers. Email transmission cannot be guaranteed to be secure or error-free. Therefore, we do not represent that this information is complete or accurate and it should not be relied upon as such. All information is subject to change without notice. ---------- IRS Circular 230 Disclosure: Lehman Brothers and its affiliates do not provide tax advice. Accordingly, please be advised that any discussion of US tax matters contained within this communication (including any attachments) is not intended or written to be used and cannot be used for the purpose of (i) avoiding US tax related penalties or (ii) promoting, marketing or recommending to another party any transaction or matter addressed herein. --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
|