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.
Rainer
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
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