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Kartheek,

On 6/12/15 4:41 PM, kartheek desineedi wrote:
> Yes we upgraded to Apache Tomcat 7.0.62 but still the issue is
> persisting.
> 
> Failed request filter did not filter out any params indicating that
> the parameters are not malformed.
> 
> We are sending all the requests in the SAME manner while most of
> them succeed,few of them fail.
> 
> Which class in the tomcat source should we try adding more
> debugging if need be?

Can you add this Filter to your web application to see if the problem
is that the request itself is badly-formatted in some way?

http://tomcat.apache.org/tomcat-7.0-doc/config/filter.html#Failed_Reques
t_Filter

- -chris

> On Fri, Jun 12, 2015 at 3:34 PM, kartheek desineedi < 
> kartheekdesine...@gmail.com> wrote:
> 
>> Thanks for your response Christopher.
>> 
>> Consecutive requests in the sense when 5(for example) users send
>> requests in the normal transaction flow,one of them fails.
>> 
>> The logs at different layers of the request flow indicate that
>> the parameters are being passed from the original request till
>> the AJP port 8009 but in the request dumper logs we do NOT see
>> those parameters.
>> 
>> Since our  application would receive the requests AFTER the
>> request dumper filter it is obvious that the parameters are lost
>> even before our application gets them.
>> 
>> What would be the best log to look at in our case? Is there any
>> additional logging/config that needs to be enabled at Tomcat
>> layer?
>> 
>> 
>> 
>> 
>> On Fri, Jun 12, 2015 at 2:33 PM, Christopher Schultz < 
>> ch...@christopherschultz.net> wrote:
>> 
> Kartheek,
> 
> On 6/12/15 12:32 PM, kartheek desineedi wrote:
>>>>> We are facing a weird issue where a similar configuration
>>>>> is yielding unexpected results for consecutive requests on
>>>>> Tomcat 7.0.54.
>>>>> 
>>>>> We have enabled the request dumper filter on Tomcat 7 and
>>>>> it shows that consecutive requests are missing the
>>>>> parameters.
> 
> What do you mean "consecutive requests"?
> 
>>>>> Due to this our application is throwing a backend error and
>>>>> giving a bad user experience of not letting the user
>>>>> complete a transaction.
>>>>> 
>>>>> Did anyone face a similar issue on Tomcat 7 ?I can share
>>>>> more configuration files as required to help give more
>>>>> details on the issue.
> 
> Did you follow-up on all the questions we've already asked, and
> the ideas we've presented? You have a handful of replies on your
> earlier thread.
> 
>>>>> Helpful pointers are greatly appreciated.
>>>>> 
>>>>> LOG link:
>>>>> 
>>>>> http://www.filedropper.com/requestdumper
>>>>> 
>>>>> TCP dump -8009 http://www.filedropper.com/tcpdump
> 
> I looked, and these don't tell me anything. I have no idea what
> I'm looking at.
> 
>>>>> Additional Info:
>>>>> 
>>>>> We are not aware of any specific pattern.The transaction is
>>>>> going through Browser [HTTP | Port 80] >> Web Server [HTTP
>>>>> | Port 80] >> Mod JK [AJP 13 | Port 8009] >> Tomcat [AJP 13
>>>>> | Port 8009].The parameters are submitted through a form
>>>>> POST.We roughly see this issue once in 5 times.The log
>>>>> which we shared is from the tomcat's request dumper filter
>>>>> which is supposedly the first filter before any of the
>>>>> application level filters are invoked which means that our
>>>>> application is not even receiving them.Hope this gives you
>>>>> a better idea.
> 
> So, is the RequestDumperFilter seeing the parameters but your 
> application is not? Or are you saying that not even the 
> RequestDumperFilter is seeing the parameters?
> 
>>>>> Added the tcp dump for port 8009 which is the last layer
>>>>> before the request dumper log and the parameters are found
>>>>> in both the cases.(please ignore the file name in the
>>>>> logs)
> 
> -chris
>>> 
>>> --------------------------------------------------------------------
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>>>
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>>> 
>> 
>> 
>> -- *Saludos,* Kartheek DVRK http://dreamchannel.bigrock.in
>> 
> 
> 
> 
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