On 24 May 2016 12:33 pm, "Christopher Schultz" <ch...@christopherschultz.net> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Jakub, > > On 5/23/16 8:03 PM, Ja kub wrote: > > Christopher, Thx for response, pleas confirm or deny if I > > understand well. > > > > BIO uses thread per http connection (tcp connection). (Shame I > > didn't realize it!) NIO uses thread per request. > > It's more complicated than that, but very close. > > > With NIO thread is returned to pool as soon as request is finished > > (doGet ends). > > Yes. > > > With BIO thread is returned to pool only when tcp connection is > > closed !!! > > Yes, but even HTTP keepalive has a timeout, and the connection will be > dropped after that timeout, releasing the thread. > > > Given http://kb.mozillazine.org/Network.http.keep-alive.timeout - > > Amount of time in seconds to keep keep-alive connections alive. > > Default: 115 seconds. default tomcat keepAliveTimeout 60 s default > > tomcat maxThreads is 200 With 200 browsers with ajax pooling server > > every 50 seconds tomcat connector thread pool will be depleted and > > client no 201 will not be able to connect to tomcat ? > > Yes. > Although there is default accept queue of 100 so theoretically the conn 301 will be rejected. Right?
> > So with default configuration tomcat 7 will have problem with just > > 201 on-line clients of an ajax application (with only 4 > > requests/second) ? > > If the browse doesn't close those HTTP connections from the Ajax > clients, the yes, you can trivially DOS your server. > > > Why is BIO connector still default one in tomcat 7 server.xml? > > Because it was the default when Tomcat 7 shipped and changing defaults > that are that important is a big deal. You are welcome to change it > yourself. > > > Is there any problem with backward compatibility (don't think so, > > cause than BIO wouldn't be totally removed in 8.5, but left > > available ) ? > > BIO is 100% gone in Tomcat 8.5. > > The protocol (HTTP) and the API (servlet) are still identical, so > there should be no problems for your application in general. > > - -chris > -----BEGIN PGP SIGNATURE----- > Comment: GPGTools - http://gpgtools.org > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ > > iQIcBAEBCAAGBQJXQ71tAAoJEBzwKT+lPKRYZHIP/jbN3vhtHkLHny6kNXguh5Pl > BpwaRNHojlOqzXQUWidrmQpQPZ+8GKSUcJp3hcwCklRYNqLS9GdENodwYJFhyKRE > jVFG2KRSVI+difWKpuX+gIVEiFxUV/fQ+1ZhrNUXusElprqku+s15dqsgI5GYu3u > BlvEUVs5/rYG+KqZFCYXw5lpe/pRd3fs+zNJFKOXYqY2qQRICzXQJDCvICgPp7fZ > I804dDIR8mhOfffemgaB1OyOy4F3NsPodBA2LsVcbJpecfQy3vWPCSNkLmUT1Nee > a30Q6VjdMsq+w/C1cGnxxDwxqoK8mXnyUEIH8GmtGyiak4lzJzSXmqO3RjqXHwm8 > tJnJdWNK+lP4EY9dJQrzv4NokZN+rYb9WCogMXKHvTdpmWDzMiMQs3zyFPkbLfKw > EGeZKaY3zJFIGltPvpk/QRj0+VcXh6x3g9TUtR8ypoETrchAszCJPVUYy8H5yBaX > N3H9wrJ2OlFmjrXKNRsY1OtuTABiKjVZXtfuTIgyK4tSddM+4gme5iydmURRISMY > 7G1UQRNtLng8WFpCaIPrrBVUgXXrfkmYu9pEyjgzuMNc1/gf5stQNWH/AagOVt+J > WR2Nz4nCSjsMDCyo3+AW6pcesp7aPOJ/uAsNAZHJbZvE2mTxsw857jZxonTF1bVN > V7EDZv5G8d/FFtZuzVzf > =UEDx > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org >
