Thanks. I made connection Pool parameters as per documentation. What I am looking for is that whether there is any chance we can close the Ajp13Processor threads in Tomcat Server if they are no longer needed, or after a particular time. Whenever I hit the URL on the browser a new thread is getting created and sooner or later it reaches the threshold. Eventually I'll have to restart the server.
-----Original Message----- From: André Warnier [mailto:a...@ice-sa.com] Sent: Tuesday, August 30, 2011 12:50 AM To: Tomcat Users List Subject: Re: Ajp13Processor threads are not getting closed. Well then.. Jagadish Raj R wrote: > Hi Andre, > > Here are the results. > > Compiled in modules: > core.c this : > prefork.c means that your front-end Apache httpd server is running in "prefork" mode. And what do the parts in red say in the link I sent you before ? > http_core.c > mod_so.c > > > KeepAlive On > MaxKeepAliveRequests 100 And this : > KeepAliveTimeout 15 means that any time a browser makes a connectionm to the server, sends a few requests on that connection, and then does not send anything anymore, the server will keep "listening" anyway for up to 15 seconds after the last request, just in case the browser /would/ send another request on that connection. And during that same time, one connection from Apache httpd to Tomcat will be kept waiting, and one thread in Tomcat will be kept waiting, for the same reason. You would probably improve the responsiveness of your server in general, by reducing this to 3 for example. > > > Thanks & Regards, > JAGADISH RAJ R > > -----Original Message----- > From: André Warnier [mailto:a...@ice-sa.com] > Sent: Thursday, August 25, 2011 4:48 PM > To: Tomcat Users List > Subject: Re: Ajp13Processor threads are not getting closed. > > To the original poster Jagadish Raj : > > Maybe let's restart from the beginning. > > First, re-read this page of the online documentation for the mod_jk connector > : > http://tomcat.apache.org/connectors-doc/reference/workers.html > Particularly, next to the connection_pool* parameters, the items in red. > > Considering that, what is the MPM used on your Apache httpd server ? > (you can see this by running "/usr/sbin/apache2 -l" or "httpd -l"; list the > result here). > (This is to find out if your httpd server is running in "prefork" mode or one > of the > multi-threading modes.) > > Then, what are the httpd settings for "KeepAlive" ? > (KeepAlive and KeepAliveTimeout). This is usually in > /etc/apache2/apache2.conf. > > > Edward Quick wrote: >> mod_jk is not Tomcat so I'm not sure you need to worry about running an >> older version of tomcat as long as it's listening on the AJP connector. >> >> >> -----Original Message----- >> From: Jagadish Raj R [mailto:jagadish_ra...@symantec.com] >> Sent: 25 August 2011 10:08 >> To: Tomcat Users List >> Subject: RE: Ajp13Processor threads are not getting closed. >> >> Hi, >> >> Apache not accepting JkWatchDogInterval parameter (think it's version >> problem). How is this problem fixed in higher Tomcat versions. Can I do the >> same in lower version of Tomcat. >> >> (As of now, I don't have a choice of upgrading Tomcat as this requires >> upgrade of TIBCO Administrator which is built on top of Tomcat) >> >> >> Thanks & Regards, >> JAGADISH RAJ R | Symantec EAI Support | M P H A S I S an HP company | Level >> 2, Tower 7, Magarpatta SEZ, Magarpatta city, Pune-411013| Mobile: +91 >> 9011047954| Email: jagadish_ra...@symantec.com >> >> >> -----Original Message----- >> From: Edward Quick [mailto:edward.qu...@iggroup.com] >> Sent: Wednesday, August 24, 2011 3:20 PM >> To: Tomcat Users List >> Subject: RE: Ajp13Processor threads are not getting closed. >> >> You could try adding JkWatchDogInterval 30. That did the trick for me. >> >> -----Original Message----- >> From: Jagadish Raj R [mailto:jagadish_ra...@symantec.com] >> Sent: 24 August 2011 10:39 >> To: Tomcat Users List >> Subject: Ajp13Processor threads are not getting closed. >> >> Hi Tomcat Users, >> >> I have a Tomcat server to which another apache webserver connects using AJP >> 1.3 Connector. I have set up a maxProcessors="75" in connector settings. >> Whenever a user creates a connection an Ajp13Processor connection thread is >> created. My problem is this thread does not get terminated even after the >> user close the session. Please help me in finding some configuration changes >> that will allow me to close these sessions/threads after a certain timeout >> value. >> >> I am pasting below the configurations I am using. >> >> <!-- Define an AJP 1.3 Connector on port 8009 --> >> <Connector className="org.apache.ajp.tomcat4.Ajp13Connector" >> port="8089" minProcessors="5" maxProcessors="75" acceptCount="10" >> connectionTimeout="60000" debug="0"/> >> >> Workers.properties file:- >> >> worker.list=ajp13 >> worker.ajp13.port=xxxx >> worker.ajp13.host=hostname >> worker.ajp13.type=ajp13 >> worker.ajp13.connection_pool_size=75 >> worker.ajp13.connection_pool_minsize=15 >> worker.ajp13.connection_pool_timeout=60 >> >> >> Logs from thread dump of tomcat process:- >> >> "Ajp13Processor[xxxx][7]" daemon prio=10 tid=0x0166c038 nid=0xe0 in >> Object.wait() [0xa64ff000..0xa64ffa28] >> at java.lang.Object.wait(Native Method) >> - waiting on <0xc6de9028> (a org.apache.ajp.tomcat4.Ajp13Processor) >> at java.lang.Object.wait(Object.java:474) >> at >> org.apache.ajp.tomcat4.Ajp13Processor.await(Ajp13Processor.java:316) >> - locked <0xc6de9028> (a org.apache.ajp.tomcat4.Ajp13Processor) >> at org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:576) >> at java.lang.Thread.run(Thread.java:595) >> >> >> Versions:- >> >> Tomcat - 4.1.27 >> Mod JK - mod_jk-apache-2.0.49-linux-i686.so >> >> >> >> >> Thanks & Regards, >> JAGADISH RAJ R | Symantec EAI Support | M P H A S I S an HP company | Level >> 2, Tower 7, Magarpatta SEZ, Magarpatta city, Pune-411013| Mobile: +91 >> 9011047954| Email: >> jagadish_ra...@symantec.com<mailto:jagadish_ra...@symantec.com> >> >> >> The information contained in this email is strictly confidential and for the >> use of the addressee only, unless otherwise indicated. If you are not the >> intended recipient, please do not read, copy, use or disclose to others this >> message or any attachment. Please also notify the sender by replying to this >> email or by telephone (+44 (0)20 7896 0011) and then delete the email and >> any copies of it. Opinions, conclusions (etc) that do not relate to the >> official business of this company shall be understood as neither given nor >> endorsed by it. IG Group Holdings plc is a company registered in England and >> Wales under number 01190902. VAT registration number 761 2978 07. Registered >> Office: Cannon Bridge House, 25 Dowgate Hill, London EC4R 2YA. Authorised >> and regulated by the Financial Services Authority. FSA Register number >> 114059. >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
