Re: gsoc project - Tomcat proxy [query]
Please find my wiki page about existing servlet proxy at : http://wiki.apache.org/tomcat/ServletProxy I will continue to add information to this page, please suggest any changes if required On Thu, Apr 16, 2009 at 8:44 AM, Sharmistha jat sharmistha.ja...@gmail.com wrote: Thanks for suggestion. [:)] On Thu, Apr 16, 2009 at 5:50 AM, Costin Manolache cos...@gmail.com wrote: One suggestion: I think it would be nice to consider scalability - if you have one tomcat frontend forwarding to 100 backends and acting as a load balancer - you probably can't afford one connection per thread. Many of the http forwarders I know use a blocking http client library - I think this would be the wrong approach for tomcat. To do non-blocking you will need to work at coyote level, and probably make few enhancements to register your client connection with the same framework - i.e. use the same Selectors or APR poll. You would also need to implement a non-blocking http client - you can use the nio/apr as starting points as well, but the code is a bit messy ( IMHO ). Or you could just start from scratch - use an existing non-blocking http client. I have a small experimental async http client in sandbox, if you plan to go non-blocking it may be worth checking it out (I'll update it to what I have - it's kind-of-working ). But probably using the NIO/APR connectors would be a better starting point. Costin On Wed, Apr 15, 2009 at 1:18 PM, jean-frederic clere jfcl...@gmail.comwrote: Sharmistha jat wrote: 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 Yep thst is the idea. +++ CUT +++ 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. You looked to the j2ep, noodle etc, don't you? It would be nice to describe a little how they work or that least their main features and the url to there code if applicable. Just like a note on other existing implementation. Ok, will write a wiki on the existing servlet proxies, their approach and working [thanks] Cheers Jean-Frederic 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 - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
gsoc project - Tomcat proxy [query]
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]. 2) Use [intent] I have studied a number of servlet proxies like j2ep, noodle Http Proxy Servlet in past days. And was puzzled about my intent of making proxy and its designing thereof. So, please guide me a little bit about this. Thanks Sharmistha v javascript://nop/
Re: gsoc project - Tomcat proxy [query]
Thanks for suggestion. [:)] On Thu, Apr 16, 2009 at 5:50 AM, Costin Manolache cos...@gmail.com wrote: One suggestion: I think it would be nice to consider scalability - if you have one tomcat frontend forwarding to 100 backends and acting as a load balancer - you probably can't afford one connection per thread. Many of the http forwarders I know use a blocking http client library - I think this would be the wrong approach for tomcat. To do non-blocking you will need to work at coyote level, and probably make few enhancements to register your client connection with the same framework - i.e. use the same Selectors or APR poll. You would also need to implement a non-blocking http client - you can use the nio/apr as starting points as well, but the code is a bit messy ( IMHO ). Or you could just start from scratch - use an existing non-blocking http client. I have a small experimental async http client in sandbox, if you plan to go non-blocking it may be worth checking it out (I'll update it to what I have - it's kind-of-working ). But probably using the NIO/APR connectors would be a better starting point. Costin On Wed, Apr 15, 2009 at 1:18 PM, jean-frederic clere jfcl...@gmail.comwrote: Sharmistha jat wrote: 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 Yep thst is the idea. +++ CUT +++ 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. You looked to the j2ep, noodle etc, don't you? It would be nice to describe a little how they work or that least their main features and the url to there code if applicable. Just like a note on other existing implementation. Ok, will write a wiki on the existing servlet proxies, their approach and working [thanks] Cheers Jean-Frederic 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 - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
