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Date: Thu, 28 Jul 2011 11:35:56 -0600
From: Filip Hanik - Dev Lists <devlists@hanik.com>
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To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Problem with threads in stage Service (Tomcat 7.0.14)
References: <6afd8320-3ccc-4af1-950d-c122aef844dc@correoDQ>
In-Reply-To: <6afd8320-3ccc-4af1-950d-c122aef844dc@correoDQ>
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most likely you have GC running all the time

""http-bio-80"-exec-107" daemon prio=10 tid=0x00002aaab31ea000 nid=0x47b2 runnable [0x00000000436ab000]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.get(HashMap.java:303)
at sae.HTMLEncoder.encode(HTMLEncoder.java:46)

this should not be a stage where you're stuck, unless you have a loop problem.


On 7/28/2011 9:09 AM, Alejandro Henao Gonz�lez wrote:
> Good day.
>
> I have the following problem with my tomcat.
>
> Sometimes, some threads are keep in service stage for a long time (really never exit from this stage), this causes that tomcat uses a 
> hight percentage of the CPU (100 % of 2 or 3 cores) thus the webapp executes very slow.
>
> I have a Tomcat 7.0.14 in a Redhat RHLE 5.5.
>
> The partial solution is restart the service, but this is not a practical solution(because is a 24/7 server). is posible config a timeout 
> for threads in service stage, or any solution??
>
> Thanks. Sorry for the redaction. Attached an image with the tomcat manager status and the CPU consuming.
>
>
> --------
>
> Cordial saludo.
>
> Tengo el siguiente problema con mi tomcat.
> En algunas ocasiones, algunos hilos se quedan en la etapa de servicio por demasiado tiempo (de hecho nunca salen de esta etapa), esto 
> causa que el tomcat use un alto porcenta de la CPU (el 100 % de 2 o 3 n�cluos incluso hasta los 8 a veces), y en consecuencia mi 
> aplicaci�n web trabaja demasiado lento.
>
> Tengo el Tomcat 7.0.14 en Redhat RHLE 5.5
>
> La soluci�n temporal que tengo es reiniciar el servicio, sin embargo esta no es una soluci�n pr�ctica (pues debe ser un servidor 24/7). Es 
> posible configurar alg�n timeout para hilos en la etapa de servicio, o alguna soluci�n alternativa para este problema?
>
> Muchas Gracias. Adjunto una imagen del reporte del estado por el tomcat Manager, y el uso de la CPU
>
>
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