Hi ,
Even I too getting the same problem(lots of broken pipe errors )with catalina
4.0.4(redhat 7.3, j2sdk1.4.1) connecting apache 2.0.40(redat 7.3) on diffrenet
machine with mod_jk,
But what happened is after it ran for cuople of hours, tomcat crases,
giving kernel out of memory error in syslog messages Did you get any workaround for this Thks, --Venkat -----Original Message----- From: Ben Ricker [mailto:[EMAIL PROTECTED]] Sent: Mon 12/23/2002 5:49 PM To: Tomcat Users List Cc: Subject: Re: Urgent - Issue with Tomcat/mod_jk? I had suspected that in the problem earlier in the day (the part of the email I posted at the end if the last email you replied to). However, what did not make sense was the connection pool woth the database also going up. If I understand the stuff below, after 85 concurrent connections (max connections + accept count) I would start getting the "Out of Processors" error. However, I cannot see how this would cause the DATABASE connection pool to grow as large as it did (we usually handle 50k connections a business day with 5 pooled connections; during the earlier problem, the database connections went to *30*, our maximum). Additionally, why would we contine to get the following error: 2002-12-23 09:07:28 Ajp13Processor[12009][18] process: invoke java.io.IOException: Broken pipe at java.net.SocketOutputStream.socketWrite(Native Method) at java.net.SocketOutputStream.write(SocketOutputStream.java:91) at org.apache.ajp.Ajp13.send(Ajp13.java:525) at org.apache.ajp.RequestHandler.finish(RequestHandler.java:501) at org.apache.ajp.Ajp13.finish(Ajp13.java:395) at org.apache.ajp.tomcat4.Ajp13Response.finishResponse(Ajp13Response.java:196) at org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:464) at org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:551) at java.lang.Thread.run(Thread.java:479) without seeing the "Out of Processor" msgs? I may be looking at two independent problems: one a scalability issue with the ajp13 processors (which are at the ddefault setting, btw) and some other issue I am in the dark about. Anyway, these questions are rhetorical. Thanks for the reply and do not feel obliged to answer back. I need to start putting pressure on the developers to help me out here. Thanks again, Ben Ricker On Mon, 2002-12-23 at 16:07, Mark Eggers wrote: > Ben, > > Disclaimer: > > I'm not a Tomcat developer, but I do use it to develop > software and integrate applications. > > In $CATALINA_HOME/conf/server.xml you should see an > entry similar to the following: > > <!-- Define an AJP 1.3 Connector on port 8009 --> > <Connector > className="org.apache.ajp.tomcat4.Ajp13Connector" > port="8009" > minProcessors="5" > maxProcessors="75" > acceptCount="10" debug="0"/> > > I'm using 4.1.18, so your entry may be a bit > different. It looks like from your error messages > that you may be running out of processors. > > The following information is taken from Tomcat's > 4.1.18 documentation. If you have the documentation > installed somewhere, the URL is: > > http://localhost/tomcat-docs/config/jk.html > > acceptCount: > > The maximum queue length for incoming connection > requests when all possible request processing threads > are in use. Any requests received when the queue is > full will be refused. The default value is 10. > > maxProcessors: > > The maximum number of request processing threads to be > created by this Connector, which therefore determines > the maximum number of simultaneous requests that can > be handled. If not specified, this attribute is set to > 20. > > NOTE:For Apache 1.3 on Unix there is a 1 to 1 mapping > between httpd processes and Ajp13Processors. You must > configure maxProcessors to be greater than or equal to > the maximum number of httpd processes your Apache web > server spawns. > > minProcessors: > > The number of request processing threads that will be > created when this Connector is first started. This > attribute should be set to a value smaller than that > set for maxProcessors. The default value is 5. > > I hope this gets you started on a productive path. > > /mde/ > > just my two cents . . . . > > __________________________________________________ > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > http://mailplus.yahoo.com > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- Ben Ricker <[EMAIL PROTECTED]> Wellinx.com -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
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