Ok, I'm the sysamdin of which is being spoken. So I checked netstat, as I normally do. Here's a bit of info:
netstat -an | grep 172.16 | grep ESTABLISHED | wc -l (172.16 refers to the DB connection on the internal network, on a separate VLAN than the rest of the network traffic) This elicits a response of : 45 , which if I watch the sysmon on the SQL server, it shows 45 connections currently. Same command with TIME_WAIT instead, shows: 15 So at least right now, it doesn't seem to be so much a connection problem to the DB. We did his some "too many open files" errors in the Catalina.out, which I temporarily resolved by changing ulimit -n from 1024 to 8092. --- robert engstrom -----Original Message----- From: Lawrence, Gabriel [mailto:[EMAIL PROTECTED] Sent: Friday, August 08, 2003 1:47 PM To: Tomcat Users List Subject: RE: Help! heavy traffic is crapping out our site every 5 min! DBCP exceptions Try running netstat on the linux box to see how many connections are out there. This might give you some more visibility into what network connections are actually being used and where they are going. -gabe -----Original Message----- From: Barclay A. Dunn [mailto:[EMAIL PROTECTED] Sent: Friday, August 08, 2003 10:43 AM To: Tomcat Users List Subject: RE: Help! heavy traffic is crapping out our site every 5 min! DBCP exceptions your logic seems on target to me. my sysadmin (who's just as stymied as i am) says that according to his sources, sockets on linux are open files so if the open file limit is exceeded, it would affect sockets as well. any thoughts on this? barclay -----Original Message----- From: Eric J. Pinnell [mailto:[EMAIL PROTECTED] Sent: Friday, August 08, 2003 1:38 PM To: Tomcat Users List Subject: RE: Help! heavy traffic is crapping out our site every 5 min! DBCP exceptions I'm pretty sure "can't create socket" means it can't connect to the DB for some reason. I would wager the DB (or something) is refusing the connection. The fact that it said "can't create socket" means that tomcat is trying to do so. So that part of it seems alright. -e On Fri, 8 Aug 2003, Barclay A. Dunn wrote: > well, i followed the dbcp comment that says "set to 0 for unlimited" and > that turns out to be wrong. > > i also tried -1 and that is equally unuseful in terms of setting it to > unlimited. > > so i tried setting maxActive to 1000000000 and so far it is generating no > errors. no, i'm wrong. connecs shot up to around 600 or maybe more, then we > started getting the java.sql.SQLException: [Microsoft][SQLServer 2000 Driver > for JDBC]Error establishing socket. > > the db has an insanely huge connection limit of 99,999 we think. > > barclay > > -----Original Message----- > From: Eric J. Pinnell [mailto:[EMAIL PROTECTED] > Sent: Friday, August 08, 2003 1:27 PM > To: Tomcat Users List > Subject: RE: Help! heavy traffic is crapping out our site every 5 min! > DBCP exceptions > > > Is it also unlimited (or insanely huge) on the database? > > -e > > On Fri, 8 Aug 2003, Barclay A. Dunn wrote: > > > i adjusted the pool to unlimited and am still getting these errors. > > something else seems to be fekachte. > > > > barclay > > > > -----Original Message----- > > From: Eric J. Pinnell [mailto:[EMAIL PROTECTED] > > Sent: Friday, August 08, 2003 1:11 PM > > To: Tomcat Users List > > Subject: Re: Help! heavy traffic is crapping out our site every 5 min! > > DBCP exceptions > > > > > > Hi, > > > > Your pool of connections to your database is exhausted. Try upping the > > number. > > > > -e > > > > On Fri, 8 Aug 2003, Barclay A. Dunn wrote: > > > > > we are getting a ton of these errors in our catalina.out and i could use > > > help in fixing it. > > > > > > i know they are related to our connection pooling, but not what to do to > > > fix. my understanding of the underlying mechanics of connection pooling > is > > > somewhat limited. > > > > > > i have put two different but related error messages in here: > > > > > > java.sql.SQLException: DBCP could not obtain an idle db connection, pool > > > exhausted > > > at > > > > > > org.apache.commons.dbcp.AbandonedObjectPool.borrowObject(AbandonedObject Pool > > > .java:123) > > > at > > > > > > org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSourc e.ja > > > va:110) > > > at > > > > > > org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.ja va:3 > > > 12) > > > at com.happypuppy.util.HPSql.getConnection(HPSql.java:21) > > > at org.apache.jsp.index_jsp._jspService(index_jsp.java:222) > > > at > > > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > > at > > > > > > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja va:2 > > > 04) > > > at > > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) > > > at > > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatc her. > > > java:684) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDisp atch > > > er.java:575) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispat cher > > > .java:498) > > > at > > > > > > org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.ja va:8 > > > 22) > > > at org.apache.jsp._404_jsp._jspService(_404_jsp.java:373) > > > at > > > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > > at > > > > > > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja va:2 > > > 04) > > > at > > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) > > > at > > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > > at > > > > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tion > > > FilterChain.java:247) > > > at > > > > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erCh > > > ain.java:193) > > > at > > > > > > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv e.ja > > > va:260) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:643) > > > at > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) > > > at > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > > > at > > > > > > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv e.ja > > > va:191) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:643) > > > at > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) > > > at > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > > > at > > > > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:241 5) > > > at > > > > > > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java :180 > > > ) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:643) > > > at > > > > > > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa lve. > > > java:170) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:641) > > > at > > > > > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java :172 > > > ) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:641) > > > at > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) > > > at > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > > > at > > > > > > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. java > > > :174) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:643) > > > at > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) > > > at > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > > > at > > > org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:458) > > > at > > > org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:551) > > > at java.lang.Thread.run(Thread.java:536) > > > > > > org.apache.commons.dbcp.DbcpException: java.sql.SQLException: > > > [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket. > > > at > > > > > > org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverC onne > > > ctionFactory.java:85) > > > at > > > > > > org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableCon nect > > > ionFactory.java:184) > > > at > > > org.apache.commons.pool.impl.GenericObjectPool.borrowObject(Unknown > > Source) > > > at > > > > > > org.apache.commons.dbcp.AbandonedObjectPool.borrowObject(AbandonedObject Pool > > > .java:117) > > > at > > > > > > org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSourc e.ja > > > va:110) > > > at > > > > > > org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.ja va:3 > > > 12) > > > at com.happypuppy.util.HPSql.getConnection(HPSql.java:21) > > > at com.happypuppy.util.HPUser.isLoggedIn(HPUser.java:121) > > > at > > > org.apache.jsp.checkLoggedIn_jsp._jspService(checkLoggedIn_jsp.java:56) > > > at > > > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > > at > > > > > > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja va:2 > > > 04) > > > at > > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) > > > at > > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatc her. > > > java:684) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDisp atch > > > er.java:575) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispat cher > > > .java:498) > > > at > > > > > > org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.ja va:8 > > > 22) > > > at org.apache.jsp._404_jsp._jspService(_404_jsp.java:351) > > > at > > > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > > at > > > > > > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja va:2 > > > 04) > > > at > > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) > > > at > > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > > at > > > > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tion > > > FilterChain.java:247) > > > at > > > > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erCh > > > ain.java:193) > > > at > > > > > > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv e.ja > > > va:260) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:643) > > > at > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) > > > at > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > > > at > > > > > > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv e.ja > > > va:191) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:643) > > > at > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) > > > at > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > > > at > > > > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:241 5) > > > at > > > > > > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java :180 > > > ) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:643) > > > at > > > > > > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa lve. > > > java:170) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:641) > > > at > > > > > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java :172 > > > ) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:641) > > > at > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) > > > at > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > > > at > > > > > > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. java > > > :174) > > > at > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvok > > > eNext(StandardPipeline.java:643) > > > at > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) > > > at > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > > > at > > > org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:458) > > > at > > > org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:551) > > > at java.lang.Thread.run(Thread.java:536) > > > Caused by: java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for > > > JDBC]Error establishing socket. > > > at > com.microsoft.jdbc.base.BaseExceptions.createException(Unknown > > > Source) > > > at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown > > > Source) > > > at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown > > > Source) > > > at com.microsoft.jdbc.sqlserver.tds.TDSConnection.<init>(Unknown > > > Source) > > > at > > com.microsoft.jdbc.sqlserver.SQLServerImplConnection.open(Unknown > > > Source) > > > at > > > com.microsoft.jdbc.base.BaseConnection.getNewImplConnection(Unknown > > Source) > > > at com.microsoft.jdbc.base.BaseConnection.open(Unknown Source) > > > at com.microsoft.jdbc.base.BaseDriver.connect(Unknown Source) > > > at > > > > > > org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverC onne > > > ctionFactory.java:83) > > > ... 51 more > > > > > > > > > --------------------------------------------------------------------- > > 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