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From Kristján Bjarni Guðmundsson <kris...@hugvit.is>
Subject Need help isolating severe Tomcat v4.1.18 bug
Date Wed, 08 Jan 2003 10:09:46 GMT
Specs and variables:
Windows NT 4 SP 6
Tomcat v4.1.18
JDK v1.4.1_01
CATALINA_OPTS=-Xms128M -Xmx1024M

At random intervals I get this error on console, it seems
that the socket for port 80 is closed and the server stops responding
What steps can I take to get more information about why this error is 
occuring?

SEVERE: Endpoint ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=80] 
ignored
exception: java.net.SocketException: socket closed
java.net.SocketException: socket closed
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:353)
        at java.net.ServerSocket.implAccept(ServerSocket.java:439)
        at java.net.ServerSocket.accept(ServerSocket.java:410)
        at 
org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(De
faultServerSocketFactory.java:107)
        at 
org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoi
nt.java:341)
        at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:497)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:530)
        at java.lang.Thread.run(Thread.java:536)
8.1.2003 03:36:47 org.apache.tomcat.util.log.CommonLogHandler log
SEVERE: Endpoint null shutdown due to exception: java.net.SocketException: 
Opera
tion now in progress: create
java.net.SocketException: Operation now in progress: create
        at java.net.ServerSocket.createImpl(ServerSocket.java:245)
        at java.net.ServerSocket.getImpl(ServerSocket.java:203)
        at java.net.ServerSocket.bind(ServerSocket.java:309)
        at java.net.ServerSocket.<init>(ServerSocket.java:183)
        at java.net.ServerSocket.<init>(ServerSocket.java:139)
        at 
org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(De
faultServerSocketFactory.java:96)
        at 
org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoi
nt.java:389)
        at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:497)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:530)
        at java.lang.Thread.run(Thread.java:536)
8.1.2003 03:36:47 org.apache.tomcat.util.log.CommonLogHandler log
SEVERE: Caught exception trying to unlock accept.
java.net.SocketException: Operation now in progress: create
        at java.net.Socket.createImpl(Socket.java:313)
        at java.net.Socket.<init>(Socket.java:286)
        at java.net.Socket.<init>(Socket.java:119)
        at 
org.apache.tomcat.util.net.PoolTcpEndpoint.stopEndpoint(PoolTcpEndpoi
nt.java:309)
        at 
org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoi
nt.java:400)
        at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:497)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:530)
        at java.lang.Thread.run(Thread.java:536)
8.1.2003 03:36:47 org.apache.tomcat.util.log.CommonLogHandler log
SEVERE: Caught exception trying to close socket.
java.lang.NullPointerException
        at 
org.apache.tomcat.util.net.PoolTcpEndpoint.stopEndpoint(PoolTcpEndpoi
nt.java:321)
        at 
org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoi
nt.java:400)
        at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:497)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:530)
        at java.lang.Thread.run(Thread.java:536)

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