You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@tomcat.apache.org by "agonat@libero.it" <ag...@libero.it> on 2010/06/05 05:33:43 UTC
R: RE: Re: intermittent SocketException on startup tomcat 5.5.28
and under JBOSS 4.2.3GA
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 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"<us...@tomcat.apache.org>, "agonat@libero.it"
<ag...@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
>
>
>THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY
MATERIAL and is thus for use only by the intended recipient. If you received
this in error, please contact the sender and delete the e-mail and its
attachments from all computers.
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: R: RE: Re: intermittent SocketException on startup tomcat 5.5.28
and under JBOSS 4.2.3GA
Posted by Pid <pi...@pidster.com>.
On 05/06/2010 10:09, Rainer Jung wrote:
> On 05.06.2010 09:23, Pid * wrote:
>> On 5 Jun 2010, at 04:33, "agonat@libero.it"<ag...@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.Caldarale@unisys.com
>>>> Data: 24/05/2010 15.38
>>>> A: "Tomcat Users List"<us...@tomcat.apache.org>, "agonat@libero.it"
>>> <ag...@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
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
Re: R: RE: Re: intermittent SocketException on startup tomcat 5.5.28
and under JBOSS 4.2.3GA
Posted by Rainer Jung <ra...@kippdata.de>.
On 05.06.2010 09:23, Pid * wrote:
> On 5 Jun 2010, at 04:33, "agonat@libero.it"<ag...@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"<us...@tomcat.apache.org>, "agonat@libero.it"
>> <ag...@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
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: R: RE: Re: intermittent SocketException on startup tomcat 5.5.28
and under JBOSS 4.2.3GA
Posted by Pid * <pi...@pidster.com>.
On 5 Jun 2010, at 04:33, "agonat@libero.it" <ag...@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
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"<us...@tomcat.apache.org>, "agonat@libero.it"
> <ag...@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
>>
>>
>> THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE
>> PROPRIETARY
> MATERIAL and is thus for use only by the intended recipient. If you
> received
> this in error, please contact the sender and delete the e-mail and its
> attachments from all computers.
>>
>>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org