I don't see that one very often.  IIRC, it means that it sent the request to an 
instance and got a null response back.  That probably means the app threw an 
exception either very early or very late in the R-R loop.  Check the app logs 
for exceptions.  Did an instance run out of memory?  Check the Apache error.log 
just to be sure.

Chuck

On 2015-02-24, 8:35 AM, "OC" wrote:

Hello there,

what the $subject means and who reports it?

I've googled a bit before coming here, and found
(a) it seems to be a Wonder error report 
(https://github.com/wocommunity/wonder/blob/master/Utilities/Adaptors/Adaptor/errors.h)
(b) it seems to be quite common to see with Apple own applications 
(http://forums.appleinsider.com/t/418/apple-store-seems-to-be-down-right-now/40 
and more similar ones, with Knowlegde Base, with Apple WebMail, etc.)

(Incidentally, Apple uses Wonder? That's nice to know.)

But what I haven't been able to find (yet) is what it actually means? :-O I did 
succeed to find the appopriate source (transaction.c in the Adaptor) and 
function (_errorResponse) which seem to generate the report, but without a 
detailed study of the adaptor code I'm none the smarter of what condition 
causes this (well, the condition is that WOAppReq.error contains 4, but... :))

Does somebody here know, or am I to dive into the adaptor sources?

Not that I would care, but one of the users of my application did see the thing 
today :(

Thanks a lot,
OC


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