Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
 
For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
Three recent questions on Tomcat Convertors

Can mod_proxy receive a request in one protocol and forward it in another?

mod_proxy (in httpd 2.2.x at least) is capable of protocol conversion - at least from http to ajp. https to http, and https to ajp should also work. mod_proxy_connect provides the capability of onward connection via https according to the manual. It is not a facility I have used personally, as the requirement for a secure connection between two local machines on the same subnet is not common when compared to external secure connections. See:
http://httpd.apache.org/docs/2.2/mod/mod_proxy.html

What is ajp 1.4 protocol?

I have taken a look at "ajp 1.4 protocol". The commonly used protocol / current standard is 1.3, but there are a (very few references around to 1.4. As an educated guess, the 1.4 proposal which included some sort of negotiated content system, was dropped.

The Tomcat project page includes details of the ajp 1.3 protocol:
http://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html
but there are no similar pages for ajp 1.4 - see:
http://tomcat.apache.org/connectors-doc/


What is the "accept count" on a connector, what is its default value, and what should I set it to?

According to the documentation, the default acceptcount (the number of connections that can be help waiting in a queue) is 10. Usual recommendation is that the acceptCount be set to the same value as the maximum connections to allow for there to be one connection waiting for each one being processed, although with the throttling at the httpd rather than the tomcat level in most installations, this could be a moot point.
(written 2009-07-07)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A608 - Web Application Deployment - Apache httpd mod_proxy
  [631] Apache httpd to Tomcat - jk v proxy - (2006-03-03)
  [934] Clustering, load balancing, mod_rewrite and mod_proxy - (2006-11-21)
  [1006] Apache httpd and Apache Tomcat together tips - (2006-12-24)
  [1121] Sharing the load with Apache httpd and perhaps Tomcat - (2007-03-29)
  [1376] Choosing between mod_proxy and mod_rewrite - (2007-10-02)
  [1566] Strange behaviour of web directory requests without a trailing slash - (2008-03-06)
  [1767] mod_proxy and mod_proxy_ajp - httpd - (2008-08-22)
  [1939] mod_proxy_ajp and mod_proxy_balancer examples - (2008-12-13)
  [1944] Forwarding session and cookie requests from httpd to Tomcat - (2008-12-14)
  [2062] Virtual hosting and mod_proxy forwarding of different domains (httpd) - (2009-03-01)
  [2325] Apache, Tomcat, mod_proxy - (2009-08-06)
  [2482] Load balancing with sticky sessions (httpd / Tomcat) - (2009-10-29)
  [3293] Distributing the server load - yet ensuring that each user return to the same system (Apache httpd and Tomcat) - (2011-05-18)
  [3339] Simplest ever proxy configuration? - (2011-06-28)
  [3680] How can I run multiple web servers behind a single IP address? - (2012-04-02)
  [3892] Distributed, Balanced and Clustered Load Sharing - the difference - (2012-10-13)


Back to
Monitoring and loading tools for testing Apache Tomcat
Previous and next
or
Horse's mouth home
Forward to
PHP preg functions - examples and comparision
Some other Articles
Python classes / courses - what version do we train on?
Who is Marc Schneider of Multilingual Search Engine Optimization Inc
Debugging multipage (session based) PHP applications
PHP preg functions - examples and comparision
Three recent questions on Tomcat Convertors
Monitoring and loading tools for testing Apache Tomcat
Dogs Trust, Dog Show, Newbury
Wiltshire - a chance to improve life for everybody
Sipping at York
Westbury Bypass Refused - looking forward
4759 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 at 50 posts per page


This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2024: 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/2273_Thr ... rtors.html • PAGE BUILT: Sun Oct 11 16:07:41 2020 • BUILD SYSTEM: JelliaJamb