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From Remy Maucherat <r...@apache.org>
Subject Re: Problems with stress tested apps
Date Tue, 06 Apr 2004 13:17:52 GMT
Henri Gomez wrote:

> Henri Gomez wrote:
> 
>> Henri Gomez wrote:
>>
>>> Hi to all,
>>>
>>> I've got problems with some highly stressed applications using jk or jk2
>>> and tomcat 3.3.2 (same thing with TC 5.0.x).
>>>
>>> I see many errors like these in log :
>>>
>>> in TC 3.3.2 and 5.0.19 :
>>>
>>> Mar 19, 2004 1:47:51 PM org.apache.jk.common.HandlerRequest invoke
>>> INFO: Unknown message 0
>>>
>>>
>>> in 5.0.19 I've got also :
>>>
>>> Mar 19, 2004 1:47:51 PM org.apache.jk.common.HandlerRequest 
>>> decodeRequest
>>> WARNING: Error registering request
>>>
>>>
>>> There is something weird in jtc, since the INFO: Unknown message 0
>>> indicate that there is an invalid command on the AJP13 link.
>>>
>>> The problem appears with both jk and jk2, so I suspect the problem
>>> to be on the java side.
>>>
>>> I'm investigating the problem.
>>>
>>>
>>
>> While playing with TC 3.3.3-dev and JTC-dev, I didn't see (yet), the 
>> INFO: Unknown message 0 but got some :
>>
>> 6 avr. 2004 08:46:37 org.apache.jk.common.ChannelSocket processConnection
>> GRAVE: Error, releasing connection
>> java.lang.NullPointerException
>>     at 
>> org.apache.coyote.RequestInfo.setGlobalProcessor(RequestInfo.java:52)
>>     at 
>> org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:427)
>>     at 
>> org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:659) 
>>
>>     at 
>> org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:807)
>>     at 
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:644)

>>
>>     at java.lang.Thread.run(Thread.java:534)
> 
> 
> With the latest TC 3.3.3-dev, I didn't get the :
> 
> Mar 19, 2004 1:47:51 PM org.apache.jk.common.HandlerRequest invoke
> INFO: Unknown message 0

The logging has been adjusted.

> And didn't see either the java.lang.NullPointerException in 
> org.apache.coyote.RequestInfo.setGlobalProcessor(RequestInfo.java:52)

AFAIK, this was a race condition issue.

> Good for TC 5.0.22 ;)

Rémy


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