-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Jesse,
On 2/11/14, 8:24 AM, Jesse Barnum wrote: > On Feb 11, 2014, at 4:56 AM, André Warnier <a...@ice-sa.com> wrote: > >> It looks that way. But this mod_proxy parameter (disablereuse, >> lowercase - I don't know if it matters) is in a section >> "BalancerMember parameters", and it is not very clear if that >> applies even if you are not using a balancer, or if it is >> forwarded to mod_proxy_ajp. Some other options in the same page >> specify this explicitly, but this one doesn't. >> >> I guess that Mark could answer that. >> >> I think that it would help, in a general sense, if there was a >> general "translation table" somewhere showing the AJP or other >> attributes or control parameters which exist, and to what option >> they correspond in respectively mod_jk and >> mod_proxy/mod_proxy_ajp. But due to the difficulty of figuring >> this out by trial and error, probably only the respective >> developers can do that. >> >>>> But I don't remember (and did not check earlier in the >>>> thread) if you indicated that you are using mod_proxy_ajp. >>>> >>>> And to answer the previous question : yes, I believe that you >>>> can keep a long keep-alive in Apache httpd, independently of >>>> how httpd connects to Tomcat. > > Once we started getting to around 5,000 connected users, our > Tomcat application became overwhelmed and unresponsive using the > AJP NIO connector. I've temporarily improved the situation by > moving to much more powerful hardware. However, it still drops a > few connections throughout the day. Are you sure the problem is Tomcat? If your clients have a long keepalive timeout with httpd and you are not using the event MPM, then each client is tying-up an HTTP connection (and thread) while not actually accomplishing anything. You may be starving your own clients by not having enough connections available to httpd. > I will experiment with other configurations on a test instance, > and load it up using the 'ab' Apache Benchmarking tool. I will post > back my results on this list. I have it on good authority that ab isn't great at launching simultaneous requests (high concurrency). Unless you have lots of servers available to generate load, you might want to try a different tool. (Though 5000 concurrent requests isn't much, so it will probably suffice) - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJS+oxFAAoJEBzwKT+lPKRYm8wP/jV2xIEiUYzZGeMCmQgHMoLk b5QtYtIPuPqjxtK1pJr+oCRDIXzCJmX8jja9Qdj+VlS+Oq57Zl8ZZ4Fv2q2j2a57 cn+fIwMWr/hm8SlnveDlA5maMchPCBIyRfg7TFWs4+5fyPbROMLjDCtFPBNA2joY 2qcFJMG4qYnRZ+uVPqRmgwD/ZjADXrKXoAOX2a7uJn0mL1rDZeDG0l9TizdeSpFq s3PrpghAIyTp3M8+RSNOiDReeHTa3/6yiHhrPUd8ppn8eXiFdN6/DzGk3SvOgynb y1ao+mXEcc2MWC2j/GSL/TiTib3RdMWGWH3nzNARol/TVeqJsqlaWnOXTho77Qfj /o5RVbTj/XWMG90nflBl4KZLKeTJczynT6/58dd+6YnxXOdyH8+20YHQsBAMxfVv AVxdqBgDZxQ6FpA5JULqXqFtLhCZ9cHh333eIKMxED+wrvGQfLUxntINKkzWHv/b 26mvQzBgZ02ZzEDEmT7wOmYfWgEtiUeRr/2CBdyPXI9O2k4knF5pPEaEp5rRQOj+ ye+r1VRnYFnNpR1LijsvzpcfuwsB9WFvNzjYj+n14e1A1yl4EvizpczNFOEPWjWW I2B1d0dp5QblW15PB1e+JZ7AaWuuCFxHV66+A+salf66zpJbhboe0Z0WYj8nG84N sxuCAv135VeKzWD/VzVo =6Don -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
