Re: "Did not receive any response from application. It is possible that the application does not exist, or that the requested url is incorrect"
Re: "Did not receive any response from application. It is possible that the application does not exist, or that the requested url is incorrect"
- Subject: Re: "Did not receive any response from application. It is possible that the application does not exist, or that the requested url is incorrect"
- From: OC <email@hidden>
- Date: Wed, 25 Feb 2015 17:57:29 +0100
Oh, and since I'm writing anyway...
On 24. 2. 2015, at 18:48, Chuck Hill <email@hidden> wrote:
> 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.
Thanks!
> Check the app logs for exceptions.
None. Far as I can say, the request -- it was CSV import, too, but none of those which went wrong -- did spawn its background thread and finished all right -- I'm logging R/Rs from application's awake/sleep, and all looks OK. Definitely no exception in my application log nearby.
> Did an instance run out of memory?
Hardly. I log the heap (and lately also the Perm Gen stuff which bit my back a couple of days ago), and there was plenty of both.
> Check the Apache error.log just to be sure.
Thanks again, I've asked the system admin to do that. I did that anyway, for that day there _was_ something fishy (hmmmm... perhaps it even might be related):
The thing is, I've got a report from a user that one request took more than 20 seconds to reload in his browser. I have found it in my logs, and App.awake to App.sleep it took 1.818 seconds. Another request reported to last a dozen of seconds from the user's point of view took 0.577 seconds App.awake to App.sleep. Weird.
Thanks again,
OC
> 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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