Thanks for replay.
I'm sorry
I have missed e-mail regard server .xml with romment removed.
so I attached this file.
regard <Context path="" docBase="SIT/"/> i think that a mistake the correct
form is in the file.
"SIT" is name of my application.
I don't able to match timestamp of error whith a request because i don't know
how to trace all request in tomcat conaitner. How can do it?
I have essentially only catalina_log (with error) and standard_out_log (in
which i have application "SIT" stdout message).
Best regards
Agostino
>----Messaggio originale----
>Da: pid@pidster.com
>Data: 05/06/2010 21.26
>A: "Tomcat Users List"<users@tomcat.apache.org>
>Ogg: Re: R: Re: R: RE: Re: intermittent SocketException on startup tomcat
5.5.28 and under JBOSS 4.2.3GA
>
>On 05/06/2010 14:41, agonat@libero.it wrote:
>> Thanks
>>
>> The question started in
>> http://mail-archives.apache.org/mod_mbox/tomcat-users/201005.mbox/thread?
3
>> on same thread.
>>
>> Now i have reduce the number of user (about 50 user simultanely) on a
>> win2003 ED quad processor with 8GB bram (I have tomcat 5.5.28, jdk.1.6.16,
IIS
>> (with certificate instaled) on port 80 that redirect request from port 80
to
>> 8080 tomcat connector server. Besides https request are directly managed
from
>> second connector, on port 443 of tomcat.)
>>
>> So the error referred, sometime occours. In particular i have noted that
this
>> error rise when a lot user make login in the application ( in a few
second).
>> Probably this may be depend from a lot tcp/ip connection, but, this
using
>> netstat -na not appear.
>> May be i must increase the number on maxTcpConnection on win2003 server
and/or
>> reduce tcpDelay.
>> Please give me a help to resolve the problem.
>> What tool i can use for investigate who cause socket close.
>>
>> The part of default server.xml of tomcat that i have change(2 connector
>> configuration an docbase) is :
>
>I guess you missed the bit about "comments removed".
>Why not backup that file, and then create a server.xml with all of the
>comments removed?
>
>> .......
>>
>> <!-- Define a non-SSL HTTP/1.1 Connector on port 8080 -->
>> <Connector
>> port="8080" maxHttpHeaderSize="8192"
>> maxThreads="350" minSpareThreads="50" maxSpareThreads="100"
>> enableLookups="false" redirectPort="443" acceptCount="100"
>> connectionTimeout="20000" disableUploadTimeout="true" />
>>
>>
>> <!-- Note : To disable connection timeouts, set connectionTimeout value
>> to 0 -->
>>
>> <!-- Note : To use gzip compression you could set the following properties
:
>>
>> compression="on"
>> compressionMinSize="2048"
>> noCompressionUserAgents="gozilla, traviata"
>> compressableMimeType="text/html,text/xml"
>> -->
>>
>> <!-- Define a SSL HTTP/1.1 Connector on port 8443 -->
>> <!--
>> <Connector port="8443" maxHttpHeaderSize="8192"
>> maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
>> enableLookups="false" disableUploadTimeout="true"
>> acceptCount="100" scheme="https" secure="true"
>> clientAuth="false" sslProtocol="TLS" />
>> -->
>>
>> <Connector port="443" maxHttpHeaderSize="10240"
>> maxThreads="150" minSpareThreads="25" maxSpareThreads="
100"
>> enableLookups="false" disableUploadTimeout="true"
>> acceptCount="100" scheme="https" secure="true"
>> clientAuth="false" sslProtocol="TLS"
>> keystoreFile="C:\CertificatiHTTPS\aaa.pfx"
>> keystorePass="bbbb"
>> keystoreType="PKCS12"
>> />
>>
>>
>> <!-- Define an AJP 1.3 Connector on port 8009 -->
>> <Connector port="8009"
>> enableLookups="false" redirectPort="443" protocol="AJP/1.3"
/>
>>
>> <!-- Define a Proxied HTTP/1.1 Connector on port 8082 -->
>> <!-- See proxy documentation for more information about using this. --
>
>> <!--
>>
>> ........
>>
>> <!-- Define the default virtual host
>> Note: XML Schema validation will not work with Xerces 2.2.
>> -->
>> <Host name="localhost" appBase="webapps"
>> unpackWARs="true" autoDeploy="true"
>> xmlValidation="false" xmlNamespaceAware="false">
>>
>>
>> <Context path="" docBase="SIT/"/>
>
>Is the above accurate, or is the extra slash after SIT an error?
>
>If it is accurate, it's wrong and will also cause double deployment -
>once as "/SIT/" and once as "/".
>
>
>Are you able to match timestamps of the Socket close exception to a
>particular request, and is there a matching request in the log?
>
>
>p
>
>
>> <!-- Defines a cluster for this node,
>> By defining this element, means that every manager will be
>> changed.
>> So when running a cluster, only make sure that you have
webapps
>> in there
>> that need to be clustered and remove the other ones.
>> A cluster has the following parameters:
>> -->
>> ........
>>
>>
>>
>>
>>> ----Messaggio originale----
>>> Da: rainer.jung@kippdata.de
>>> Data: 05/06/2010 11.09
>>> A: "Tomcat Users List"<users@tomcat.apache.org>
>>> Ogg: Re: R: RE: Re: intermittent SocketException on startup tomcat 5.5.28
and
>> under JBOSS 4.2.3GA
>>>
>>> On 05.06.2010 09:23, Pid * wrote:
>>>> On 5 Jun 2010, at 04:33, "agonat@libero.it"<agonat@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.Caldarale@unisys.com
>>>>>> Data: 24/05/2010 15.38
>>>>>> A: "Tomcat Users List"<users@tomcat.apache.org>, "agonat@libero.it"
>>>>> <agonat@libero.it>
>>>>>> Ogg: RE: Re: intermittent SocketException on startup tomcat 5.5.28
>>>>>> and under
>>>>> JBOSS 4.2.3GA
>>>>>>
>>>>>>> From: agonat@libero.it [mailto:agonat@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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>>>
>>>
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>
>
>
|