Date: Wed, 9 Jun 1999 16:46:10 PDT To: firstname.lastname@example.org From: John Dilley <email@example.com> (by way of Jim Pitkow <firstname.lastname@example.org>) Message-Id: <99Jun9.221158pdt."365176"@louise.parc.xerox.com> Subject: Caching input - known problems Hi, I am working in the IETF Web Replication and Caching working group to create a report describing the current Known Problems with proxy and cache technologies. The purpose is to document the current state of technology and understand where further work needs to be applied. This is a companion to the caching research issues document that Joe Touch is editing. The Known Problems draft is not something I am writing; I have volunteered to edit the document. I do not believe any one person can (or indeed, should) be responsible for describing all known problems with web proxying, caching and replication. Instead, this must be a collaborative process within the Internet community, drawing upon the experience of researchers and especially practitioners in the field. The I-D will acknowledge each contributor (unless he or she wishes to remain anonymous). I am sending this letter to solicit your input. I have created a problem template (based upon the TCP-IMPL and cache research issues templates) to help frame the known problems. If you can please use the template to describe the issues; if not, it is still more important to get the issues documented than to have them correctly formatted. Let me know if you feel the template needs to be improved, too. Please take a look at the template included below and try to send me your input by Friday 9th July. I will summarize the input I have received by that date at the IETF WREC working group meeting the following week. The WREC working group will distribute meeting minutes to the email@example.com mailing list. Remember, this activity cannot be successful without input from the community. Lack of input implies there are no perceived problems. If you feel otherwise, speak up so we can work towards resolving them. Thank you! -- jad -- John Dilley <firstname.lastname@example.org> Hewlett-Packard Laboratories 1501 Page Mill Road MS 1U-17 Palo Alto, CA 94304 // USA Known Problems Working Draft -- on the web: http://www.hpl.hp.com/personal/John_Dilley/caching/draft-wrec-known-prob-00. html Text-only Template -- Name A short, descriptive name. Classification Please choose a standard category if possible (see list above). Description A succinct definition of the problem. Significance (High, Medium, Low) High Medium Low. Supplimental information Implications Why the problem is viewed as a problem. Indications How to detect the presence of the problem. Solution(s) Solutions that permanently fix the problem, if such are known. Workaround Practical workaround if no solution is available or usable. Contact email@example.com (Your Name) or Anonymous ================================================================ Template Instructions Name A short, descriptive name (3-5 words) name associated with the problem. In this memo, the name is used as a subsection heading. Classification Problems are grouped into categories of similar problems for ease of reading of this memo. Choose the category that best describes the problem. Suggested categories are as follows: o Specification: the spec is ambiguous, incomplete, or incorrect o Implementation: the implementation of the specification is incorrect ------------------------------------------------------------------ o Performance: perceived latency or server demand exceed reasonable bounds o Administration: care and feeding of caches is or causes a problem o Network: impact on local, global networks from cache behavior o Security: privacy, authentication concerns This is the first draft of this memo. The classification structure is in revision. In the published drafts of the memo the classification structure should be fixed but may be revised from time to time. Description A definition of the problem, succinct but including necessary background information. Significance (High, Medium, Low) May include a brief summary of the environments for which the problem is significant. Implications Why the problem is viewed as a problem. What inappropriate behavior results from it? This section should substantiate the magnitude of any problem indicated with High significance. Indications How to detect the presence of the problem. This may include references to one or more substantiating documents that demonstrate the problem. This should include the network configuration that led to the problem such that it can be reproduced. Problems that are irreproduceable will not appear in this memo. Solution(s) Solutions that permanently fix the problem, if such are known. For example, what version of the software does not exhibit the problem? Indicate if the solution is accepted by the community, one of several solutions pending agreement, or open possibly with experimental solutions. Workaround Practical workaround if no solution is available or usable. The workaround should have sufficient detail for someone experiencing the problem to get around it. Contact Contact name and email address of the person who supplied the information for this section. If you would prefer to remain anonymous the editor's name will appear here instead, but we believe in credit where credit is due.