How does this particular feature differ from the Message Tracing feature
that is already available in Carbon? Please see blog [1]. Also doesn't IS
call out to any services in any case?

How do we make sure that we can trace the message from APIM for example?

[1] -
https://dinushasblog.blogspot.com/2013/12/message-tracing-with-wso2-api-manager.html

On Wed, Sep 5, 2018 at 10:12 AM Dulanja Liyanage <[email protected]> wrote:

>
>
> On Wed, Sep 5, 2018 at 9:45 AM, Ruwan Linton <[email protected]> wrote:
>
>> +1 for the idea in general, what we need to do is to insert this ID as a
>> MDC value and configure the logging appender pattern to include that ID
>> into the logs printed into the file/console.
>>
>> We are already working on something similar to this for tracing
>> transactions across the products, for that we are using a correlation id
>> (transaction id) between products.
>>
>> This effort has to work seamlessly with that too, in the case of a
>> request that will be initiated by APIM, there will be a correlation id
>> coming in, in the request (as a HTTP header) so the ID generation logic
>> should look at this header, and generate a new ID only if that is not
>> available.
>>
>
> +1. Yes, a new ID should be generated only if an existing one is not
> available.
>
>>
>> Thanks,
>> Ruwan
>>
>> On Tue, Sep 4, 2018 at 6:38 PM Dulanja Liyanage <[email protected]> wrote:
>>
>>> How can we map a particular request between the wso2carbon.log and the
>>> HTTP access log?
>>>
>>> IMO, we should generate this Correlation ID from a custom valve and add
>>> that as a request attribute, and then extend the Access Log valve to print
>>> that ID in the HTTP Access Log as well. (I haven't tried this, but I
>>> believe this approach is feasible)
>>>
>>> Also, by doing this way you don't have to individually add the filter to
>>> each webapp in the product, because valves get engaged for all the contexts.
>>>
>>> WDYT?
>>>
>>> Thanks,
>>> Dulanja
>>>
>>> On Mon, Aug 20, 2018 at 4:53 PM, Thumilan Mikunthan <[email protected]>
>>> wrote:
>>>
>>>> Hi All,
>>>> *Problem*
>>>>
>>>> Whenever an error occurred, analyzing error log line could not give
>>>> enough information to diagnose the error. A mechanism to track each request
>>>> flow  is helpful to diagnose.
>>>>
>>>> *Solution*
>>>> Assign unique id to each request and track it down through log files.
>>>>
>>>>    -
>>>>
>>>>    Use a Request filter to filter all requests which come to WSO2 IS.
>>>>    -
>>>>
>>>>    Assign a unique id for each request.
>>>>    -
>>>>
>>>>    Print the unique id along with log lines in order to diagnose
>>>>    errors.
>>>>
>>>> *Solution Diagram*
>>>> [image: UUID Archi.jpg]
>>>>
>>>>
>>>> *Sample Scenario*
>>>> [1] - Sample Scenario (Correlation ID-sample.jpg)
>>>> We can easily understand that above error occurred because of illegal
>>>> access by tracking the unique id.
>>>>
>>>> Please give feedback regarding this architecture.
>>>>
>>>> Best Regards,
>>>> M.Thumilan
>>>>
>>>
>>>
>>>
>>> --
>>> Thanks & Regards,
>>> Dulanja Liyanage
>>> Lead, Platform Security Team
>>> WSO2 Inc.
>>>
>>
>>
>> --
>> Ruwan Linton
>> Director - Delivery, WSO2; https://wso2.com
>> Member, Apache Software Foundation; http://www.apache.org
>> <http://adroitlogic.org/>
>>
>> email: [email protected]; cell: +94 77 341 3097; phone: +94 11 2833 436
>> linkedin: http://www.linkedin.com/in/ruwanlinton
>>
>
>
>
> --
> Thanks & Regards,
> Dulanja Liyanage
> Lead, Platform Security Team
> WSO2 Inc.
>


-- 
Nuwan Dias

Director - WSO2, Inc. http://wso2.com
email : [email protected]
Phone : +94 777 775 729
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