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.
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