tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From David Cassidy <dcass...@nisports.com>
Subject Re: Apcahe's CPU goes to 100%
Date Fri, 24 May 2002 07:58:52 GMT
please post it !

I have seen this with ajp12 (not using ajp13)

D

Costas Stergiou wrote:

>I have exactly the same experience on this. Actually, If this
>problem is not solved you cannot use tomcat load-balancing features;
>thus you cannot setup a real production stable environment!!
>
>ajp12 does not have this problem though (I think because it does
>not keep open sockets).
>After some minor investigation on the problem, I think that the bug
>has to do with an infinite loop that the ajp goes in waiting for some
>data from tomcat whereas tomcat has nothing else to send.
>I have traced the exact method that this error occurs (a simple while
>loop) and I think it shouldn't be that hard for someone that knows
>the code to figure out a solution or a work around...but noone has
>responded... If someone is interested I can repost my mail where
>I even give a stack trace of the runaway process.
>
>Hope someone gives some time into this, it is a pitty having such
>a good software such as tomcat and not being able to use it in
>critical cases.
>Costas
>
>
>
>----- Original Message -----
>From: "Cammy Ng" <cammy@businetcomm.com>
>To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
>Sent: Thursday, May 23, 2002 10:22 AM
>Subject: Re: Apcahe's CPU goes to 100%
>
>
>  
>
>>I like Tomcat a lot personally, however, if I cannot get any solution of
>>this problem, I think I need to start testing other commercial software
>>    
>>
>like
>  
>
>>Jrun, etc. Since they have there own connector, it may solve this problem.
>>    
>>
>.
>  
>
>>I was spending 2 months and look over the internet everywhere,(all news
>>group, all site talking apache, tomcat, mod_jk) and come up with no
>>solution. If anyone has solution or answer on this problem Please help and
>>post it so that all people can share it..
>>
>>Thanks
>>
>>----- Original Message -----
>>From: "Costas Stergiou" <csterg@aias.gr>
>>To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
>>Sent: Thursday, May 23, 2002 11:56 PM
>>Subject: Re: Apcahe's CPU goes to 100%
>>
>>
>>    
>>
>>>Many of use have posted this problem here but I see that nobody
>>>can come up with an answer...
>>>
>>>----- Original Message -----
>>>From: "Cammy Ng" <cammy@businetcomm.com>
>>>To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
>>>Sent: Thursday, May 23, 2002 9:39 AM
>>>Subject: Re: Apcahe's CPU goes to 100%
>>>
>>>
>>>      
>>>
>>>>Hi,
>>>>
>>>>I have this problem too, but no one seems to answer this problem, I
>>>>        
>>>>
>>>believe
>>>      
>>>
>>>>it is the mod_jk connector problem. Hope someone will find the
>>>>        
>>>>
>solution
>  
>
>>>for
>>>      
>>>
>>>>this.
>>>>
>>>>Thanks
>>>>Cammy
>>>>----- Original Message -----
>>>>From: "Rajesh Mishra" <RajeshM@Cal.InterraIT.COM>
>>>>To: <tomcat-user@jakarta.apache.org>
>>>>Sent: Wednesday, May 22, 2002 9:36 PM
>>>>Subject: Apcahe's CPU goes to 100%
>>>>
>>>>
>>>>        
>>>>
>>>>>I'm using Apache1.3.12 and Tomcat3.2 for my application.After stress
>>>>>          
>>>>>
>>>>testing
>>>>        
>>>>
>>>>>for 4 hours , CPU utilization of Apache.exe process goes to 100%. As
>>>>>          
>>>>>
>a
>  
>
>>>>>result when I try to access the website , I'm getting timeouts. But
>>>>>          
>>>>>
>I
>  
>
>>>>could
>>>>        
>>>>
>>>>>still access the website with tomcat port.
>>>>>
>>>>>Has anyone experienced this problem .I'm using mod_jk for this
>>>>>          
>>>>>
>purpose
>  
>
>>>>>Regards
>>>>>Rajesh
>>>>>
>>>>>--
>>>>>To unsubscribe, e-mail:
>>>>>          
>>>>>
>>>><mailto:tomcat-user-unsubscribe@jakarta.apache.org>
>>>>        
>>>>
>>>>>For additional commands, e-mail:
>>>>>          
>>>>>
>>>><mailto:tomcat-user-help@jakarta.apache.org>
>>>>        
>>>>
>>>>--
>>>>To unsubscribe, e-mail:
>>>>        
>>>>
>>><mailto:tomcat-user-unsubscribe@jakarta.apache.org>
>>>      
>>>
>>>>For additional commands, e-mail:
>>>>        
>>>>
>>><mailto:tomcat-user-help@jakarta.apache.org>
>>>      
>>>
>>>--
>>>To unsubscribe, e-mail:
>>>      
>>>
>><mailto:tomcat-user-unsubscribe@jakarta.apache.org>
>>    
>>
>>>For additional commands, e-mail:
>>>      
>>>
>><mailto:tomcat-user-help@jakarta.apache.org>
>>    
>>
>>--
>>To unsubscribe, e-mail:
>>    
>>
><mailto:tomcat-user-unsubscribe@jakarta.apache.org>
>  
>
>>For additional commands, e-mail:
>>    
>>
><mailto:tomcat-user-help@jakarta.apache.org>
>  
>
>
>
>--
>To unsubscribe, e-mail:   <mailto:tomcat-user-unsubscribe@jakarta.apache.org>
>For additional commands, e-mail: <mailto:tomcat-user-help@jakarta.apache.org>
>
>  
>



--
To unsubscribe, e-mail:   <mailto:tomcat-user-unsubscribe@jakarta.apache.org>
For additional commands, e-mail: <mailto:tomcat-user-help@jakarta.apache.org>


Mime
View raw message