* Wink releases caching library @ 2007-11-09 20:32 Gerd Stolpmann 2007-11-09 22:16 ` [Caml-list] " Joel Reymont 0 siblings, 1 reply; 6+ messages in thread From: Gerd Stolpmann @ 2007-11-09 20:32 UTC (permalink / raw) To: caml-list; +Cc: Mika Illouz Hi list, Wink Technologies, Inc., the makers of the soon-to-be-famous people search engine (http://wink.com), have just released another OCaml library, this time for caching data: "Cache implements a caching service for storing arbitrary strings that can be located by string keys. The caching service is reachable over TCP. The cache can be distributed over several nodes. The cache can be saved to disk in regular intervals. A client module is included. Both synchronous and asynchronous access methods are defined." Downloadable at http://oss.wink.com/cache/. There is also a manual: http://oss.wink.com/cache/cache-1.0/doc/html/index.html There is also a GODI package for it (godi-cache). N.B. The library has been in production for more than a year. It's rock-stable and fast, and runs 24x7 without any problems. Gerd -- ------------------------------------------------------------ Gerd Stolpmann * Viktoriastr. 45 * 64293 Darmstadt * Germany gerd@gerd-stolpmann.de http://www.gerd-stolpmann.de Phone: +49-6151-153855 Fax: +49-6151-997714 ------------------------------------------------------------ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Caml-list] Wink releases caching library 2007-11-09 20:32 Wink releases caching library Gerd Stolpmann @ 2007-11-09 22:16 ` Joel Reymont 2007-11-09 22:49 ` Edgar Friendly 2007-11-10 15:07 ` Gerd Stolpmann 0 siblings, 2 replies; 6+ messages in thread From: Joel Reymont @ 2007-11-09 22:16 UTC (permalink / raw) To: Gerd Stolpmann; +Cc: caml-list, Mika Illouz Gerd, Why did you guys roll your own instead of using memcached? Thanks, Joel On Nov 9, 2007, at 8:32 PM, Gerd Stolpmann wrote: > "Cache implements a caching service for storing arbitrary strings that > can be located by string keys. The caching service is reachable over > TCP. The cache can be distributed over several nodes. The cache can be > saved to disk in regular intervals. A client module is included. Both > synchronous and asynchronous access methods are defined." -- http://wagerlabs.com ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Caml-list] Wink releases caching library 2007-11-09 22:16 ` [Caml-list] " Joel Reymont @ 2007-11-09 22:49 ` Edgar Friendly 2007-11-09 23:07 ` Joel Reymont 2007-11-10 15:07 ` Gerd Stolpmann 1 sibling, 1 reply; 6+ messages in thread From: Edgar Friendly @ 2007-11-09 22:49 UTC (permalink / raw) To: Joel Reymont; +Cc: Gerd Stolpmann, Mika Illouz, caml-list Joel Reymont wrote: > Gerd, > Why did you guys roll your own instead of using memcached? > Thanks, Joel > > On Nov 9, 2007, at 8:32 PM, Gerd Stolpmann wrote: > >> "Cache implements a caching service for storing arbitrary strings that >> can be located by string keys. The caching service is reachable over >> TCP. The cache can be distributed over several nodes. The cache can be >> saved to disk in regular intervals. A client module is included. Both >> synchronous and asynchronous access methods are defined." > I can't find any OCaml client for memcached. If noone interrupts me by pointing out a client that google didn't find, I think I'll go ahead and write one and see about comparing Cache with memcached. E. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Caml-list] Wink releases caching library 2007-11-09 22:49 ` Edgar Friendly @ 2007-11-09 23:07 ` Joel Reymont 2007-11-10 5:40 ` Edgar Friendly 0 siblings, 1 reply; 6+ messages in thread From: Joel Reymont @ 2007-11-09 23:07 UTC (permalink / raw) To: Edgar Friendly; +Cc: Gerd Stolpmann, Mika Illouz, caml-list On Nov 9, 2007, at 10:49 PM, Edgar Friendly wrote: > I can't find any OCaml client for memcached. If noone interrupts me > by > pointing out a client that google didn't find, I think I'll go ahead > and > write one and see about comparing Cache with memcached. That's the essence of my question. I assume it wouldn't have taken long to write a memcached client but Wink chose to write a less featured memcached of their own. I really wonder why. -- http://wagerlabs.com ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Caml-list] Wink releases caching library 2007-11-09 23:07 ` Joel Reymont @ 2007-11-10 5:40 ` Edgar Friendly 0 siblings, 0 replies; 6+ messages in thread From: Edgar Friendly @ 2007-11-10 5:40 UTC (permalink / raw) To: Joel Reymont; +Cc: Gerd Stolpmann, Mika Illouz, caml-list Joel Reymont wrote: > That's the essence of my question. I assume it wouldn't have taken long > to write a memcached client but Wink chose to write a less featured > memcached of their own. I really wonder why. > It does seem to have features that memcached doesn't. For example: * saving the cache to disk (and, I assume, loading it on startup) * undelete of entries scheduled for deletion on modify * get if: modified < x, data_hash != x (otherwise not found) * async requests It seems to lack: * append/prepend insertion-into-cache commands * increment/decrement modifies 64-bit counters in the cache * UDP protocol support E. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Caml-list] Wink releases caching library 2007-11-09 22:16 ` [Caml-list] " Joel Reymont 2007-11-09 22:49 ` Edgar Friendly @ 2007-11-10 15:07 ` Gerd Stolpmann 1 sibling, 0 replies; 6+ messages in thread From: Gerd Stolpmann @ 2007-11-10 15:07 UTC (permalink / raw) To: Joel Reymont; +Cc: Mika Illouz, caml-list Am Freitag, den 09.11.2007, 22:16 +0000 schrieb Joel Reymont: > Gerd, > > Why did you guys roll your own instead of using memcached? We considered using memcached. However, there is no client for OCaml, and especially no asynchronous client, so we would have had to write one. I looked at the protocol, and it turned out to be weird, ad-hoc, and not very extensible. It would have been no fun developing such a client. In contrast, for developing our own caching server, it was not necessary to write any new networking code: By using the SunRPC library of Ocamlnet we got the whole communication stuff for free, and the protocol is now well-structured and easily extensible. Furthermore, we could tailor the features to our requirements, and have the guarantee that we can adapt the server to any changes. Actually, we needed only 1 day for developing the library, and another day for integrating it. This is what other companies spend for evaluating external software they might want to use. So the costs were justified, and we now have exactly the software we wanted. So the essence is: By using good tools (OCaml, Ocamlnet, etc.) we can develop the software ourselves with the same costs as the integration of an external component would have taken. Plus, we have perfectly adapted software, and are on the safe side for the future. Sounds like a good deal, right? Gerd > > Thanks, Joel > > On Nov 9, 2007, at 8:32 PM, Gerd Stolpmann wrote: > > > "Cache implements a caching service for storing arbitrary strings that > > can be located by string keys. The caching service is reachable over > > TCP. The cache can be distributed over several nodes. The cache can be > > saved to disk in regular intervals. A client module is included. Both > > synchronous and asynchronous access methods are defined." > > -- > http://wagerlabs.com > > > > _______________________________________________ > Caml-list mailing list. Subscription management: > http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list > Archives: http://caml.inria.fr > Beginner's list: http://groups.yahoo.com/group/ocaml_beginners > Bug reports: http://caml.inria.fr/bin/caml-bugs > -- ------------------------------------------------------------ Gerd Stolpmann * Viktoriastr. 45 * 64293 Darmstadt * Germany gerd@gerd-stolpmann.de http://www.gerd-stolpmann.de Phone: +49-6151-153855 Fax: +49-6151-997714 ------------------------------------------------------------ ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2007-11-10 15:07 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2007-11-09 20:32 Wink releases caching library Gerd Stolpmann 2007-11-09 22:16 ` [Caml-list] " Joel Reymont 2007-11-09 22:49 ` Edgar Friendly 2007-11-09 23:07 ` Joel Reymont 2007-11-10 5:40 ` Edgar Friendly 2007-11-10 15:07 ` Gerd Stolpmann
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