So, now i would try to install a tomcat cluster and make a simple servlet proxy [reverse] for it, then add in load-balancing logic to it [other parts like filtering n caching can be seen later] thanks for your help, its really helped me to see the project more clearly.
>A Tomcat-based reverse proxy with a pluggable load balancer would be >/huge/ in my opinion. >Having to resort to Apache (or a hardware load balancer) to distribute >load across multiple Tomcats is /really /unfortunate. >What's needed is a high-performance Java-based proxy load balancer that >makes it easy to get at the balancing algorithm. This should support >use cases like balancing new requests to the backend that currently has >the fewest active sessions or to avoid any backend which is in a >low-memory state, for instance. >Trying to hack this sort of thing into mod_proxy_balancer or mod_jk is >just so much harder than doing this sort of thing in Java. Plus there's >the benefit of "build once run anywhere", i.e. cross-platform binaries. >-- >Jess Holle >P.S. Caching at this level is quite uninteresting to me -- but could >seemingly be added via servlet request filters assuming the reverse >proxy was itself done as a servlet. Ideally the reverse proxy would >even be portable across servlet engines and designed for exposure via >JMX. [I say "designed for" as it seems everyone has their own way of >actually /doing/ JMX MBeans -- Tomcat uses Modeler and others use >something different. Me? I prefer just subclassing StandardMBean -- >but with my own value-add subclass thereof, of course :-)] >jean-frederic clere wrote: >> Sharmistha jat wrote: >>> Dear All, >>> >>> I have applied for tomcat proxy project, but i needed a little more >>> information than given in the project idea, to start with the design of >>> proxy. >>> >>> So i would like to know more about the following: >>> >>> 1) Type of proxy [reverse,content filter,caching etc]. >> >> Just a reverse proxy. >> >> For the content filter I think you mean soemthing like the ProxyPass >> and ProxyMatch of httpd, do you? If yes some filtering would be nice. >> >> Caching is interesting but not a requirement for a reverse proxy (you >> can have the static resource locally and server them locally). >> >>> >>> 2) Use [intent] >> >> The use would be to front-end TC or cluster of TC. httpd does that but >> the code is in C and it is a lot of work to have JAVA based >> administration (JMX for example). The proxy should support HTTP and >> HTTPS and could support AJP if you want. >> >>> >>> I have studied a number of servlet proxies like j2ep, noodle & Http >>> Proxy >>> Servlet in past days. >> >>Could you write a wiki on that? (Somewhere in >> http://wiki.apache.org/tomcat/). i guess u mean writing wiki about proxy servlet will give my best shot to it, but would borrow 3-4 days for the task. >> >> Cheers >> >> Jean-Frederic >> >>> >>> And was puzzled about my intent of making proxy and its designing >>> thereof. >>> >>> So, please guide me a little bit about this. >>> >>> Thanks >>> Sharmistha --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
