On 05/06/2010 10:09, Rainer Jung wrote: > On 05.06.2010 09:23, Pid * wrote: >> On 5 Jun 2010, at 04:33, "ago...@libero.it"<ago...@libero.it> wrote: >> >>> Hi >>> I m very tired because the intermittent socket close exception >>> reappear. >>> >>> We now use tomcat 5.5.28 on win2003 ED SO and jdk 1.6.16. >>> The error that occours is: >>> >>> 4-giu-2010 7.48.35 > > Date and Time in a bit strange format: 4th of June 2010, 07:48:35.
Ah. Yes. :) p >> What is the above? It doesn't look familiar to me. >> >> Can you refresh our memories and please post the current server.xml >> (comments removed)? >> >> >> p >> >>> org.apache.tomcat.util.net.PoolTcpEndpoint acceptSocket >>> GRAVE: Endpoint ServerSocket >>> [addr=0.0.0.0/0.0.0.0,port=0,localport=8080] >>> ignored exception: java.net.SocketException: socket closed >>> java.net.SocketException: socket closed >>> at java.net.PlainSocketImpl.socketAccept(Native Method) >>> at java.net.PlainSocketImpl.accept(Unknown Source) >>> at java.net.ServerSocket.implAccept(Unknown Source) >>> at java.net.ServerSocket.accept(Unknown Source) >>> at >>> org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket >>> (DefaultServerSocketFactory.java:61) >>> at org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket >>> (PoolTcpEndpoint. >>> java:408) >>> at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt >>> (LeaderFollowerWorkerThread.java:71) >>> at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run >>> (ThreadPool. >>> java:689) >>> at java.lang.Thread.run(Unknown Source) >>> 4-giu-2010 7.48.56 org.apache.tomcat.util.net.PoolTcpEndpoint >>> acceptSocket >>> AVVERTENZA: Reinitializing ServerSocket >>> 4-giu-2010 8.04.39 org.apache.tomcat.util.net.PoolTcpEndpoint >>> acceptSocket >>> GRAVE: Endpoint ServerSocket >>> [addr=0.0.0.0/0.0.0.0,port=0,localport=8080] >>> ignored exception: java.net.SocketException: socket closed >>> java.net.SocketException: socket closed >>> at java.net.PlainSocketImpl.socketAccept(Native Method) >>> at java.net.PlainSocketImpl.accept(Unknown Source) >>> at java.net.ServerSocket.implAccept(Unknown Source) >>> at java.net.ServerSocket.accept(Unknown Source) >>> at >>> org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket >>> (DefaultServerSocketFactory.java:61) >>> at org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket >>> (PoolTcpEndpoint. >>> java:408) >>> at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt >>> (LeaderFollowerWorkerThread.java:71) >>> at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run >>> (ThreadPool. >>> java:689) >>> at java.lang.Thread.run(Unknown Source) >>> 4-giu-2010 8.05.00 org.apache.tomcat.util.net.PoolTcpEndpoint >>> acceptSocket >>> AVVERTENZA: Reinitializing ServerSocket >>> 4-giu-2010 8.05.00 org.apache.tomcat.util.net.PoolTcpEndpoint >>> acceptSocket >>> GRAVE: Endpoint ServerSocket >>> [addr=0.0.0.0/0.0.0.0,port=0,localport=8080] >>> ignored exception: java.net.SocketException: socket closed >>> java.net.SocketException: socket closed >>> at java.net.PlainSocketImpl.socketAccept(Native Method) >>> at java.net.PlainSocketImpl.accept(Unknown Source) >>> at java.net.ServerSocket.implAccept(Unknown Source) >>> at java.net.ServerSocket.accept(Unknown Source) >>> at >>> org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket >>> (DefaultServerSocketFactory.java:61) >>> at org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket >>> (PoolTcpEndpoint. >>> java:408) >>> at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt >>> (LeaderFollowerWorkerThread.java:71) >>> at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run >>> (ThreadPool. >>> java:689) >>> at java.lang.Thread.run(Unknown Source) >>> 4-giu-2010 8.05.21 org.apache.tomcat.util.net.PoolTcpEndpoint >>> acceptSocket >>> AVVERTENZA: Reinitializing ServerSocket >>> 4-giu-2010 8.06.55 org.apache.tomcat.util.net.PoolTcpEndpoint >>> acceptSocket >>> GRAVE: Endpoint ServerSocket >>> [addr=0.0.0.0/0.0.0.0,port=0,localport=8080] >>> ignored exception: java.net.SocketException: socket closed >>> java.net.SocketException: socket closed >>> at java.net.PlainSocketImpl.socketAccept(Native Method) ..... >>> >>> This error slow down the application. >>> >>> we don't have firewall, pool of tcp connection seem correct, the >>> processor >>> and memory usage are normal (10% CPU and 50% RAM). >>> >>> >>> How can i investigte who cuse the problem? Jconsole observe memory >>> but seem >>> not tcp connection. >>> How can i understand why i have close socket? >>> whath are flakey router error? >>> How can i understand if i have saturate the connection on SO? >>> >>> Thank for all suggest >>> Best regards >>> Agostino >>> >>> >>> >>> >>>> ----Messaggio originale---- >>>> Da: chuck.caldar...@unisys.com >>>> Data: 24/05/2010 15.38 >>>> A: "Tomcat Users List"<users@tomcat.apache.org>, "ago...@libero.it" >>> <ago...@libero.it> >>>> Ogg: RE: Re: intermittent SocketException on startup tomcat 5.5.28 >>>> and under >>> JBOSS 4.2.3GA >>>> >>>>> From: ago...@libero.it [mailto:ago...@libero.it] >>>>> Subject: R: Re: intermittent SocketException on startup tomcat >>>>> 5.5.28 >>>>> and under JBOSS 4.2.3GA >>>>> >>>>> ERROR [org.apache.tomcat.util.net.JIoEndpoint] >>>>> Socket accept failed >>>>> java.net.SocketException: socket closed >>>> >>>> This isn't really a problem with the Tomcat server - it usually >>>> means the >>> client terminated the connection attempt before the socket on the >>> server end >>> could be created. If this is happening persistently, then something >>> in between >>> the client and Tomcat (e.g., a firewall or flakey router) is >>> dropping the >>> connection before it can be fully established. There's also a >>> possibility that >>> Windows is reaching some resource limit and preventing creation of >>> the server >>> end of the connection. >>>> >>>> - Chuck > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org >
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