network error 'previous request not completed'

[Terry Judd]

On 18/01/2012, at 07:15 PM, Phil Jimmieson wrote:

Hi folks,
I'm still using LiveCode 4.6.4 on one laptop (OS X Lion) and I have a program which retrieves data using put URL (via http) which has been occasionally showing the problem you describe. Once its broken the only solution seems to be to restart LiveCode. I tried resetall, which unfortunately also killed Remo, but didn't otherwise seem to help. I'm also using PowerDebug alongside Remo. Do you use any of these plugins?

Hi Phil - no plugins in use here, same result though, once it breaks the only solution is to restart LC (I'm on 4.6.4 as well).

Terry...


On 18 Jan 2012, at 01:09, Terry Judd wrote:

Thanks Jacqui - I think that's a separate issue. I occasionally get those empty results as well and have ways of working around them - the big difference is that unlike the 'previous request not completed' error they don't break subsequent network connections. I've added a network activity log (libURLSetLogField) for my beta tester - hopefully that will shed some light on the issue.

If anyone has personal experience of this issue I'd be keen to hear about it.

Terry...

On 18/01/2012, at 11:31 AM, J. Landman Gay wrote:

On 1/17/12 6:04 PM, Terry Judd wrote:
I'm experiencing a serious connectivity problem that appears to start
with the error 'error Previous request not completed', usually in
response to a post request, and ends with LC being pretty much
totally unresponsive to any network requests. In the IDE this can
sometimes (but not always) be rectified by calling resetAll but in
our application, the only solution is to quit the app and start
again. The post request are via https but I'm not sure whether that's
a factor. One of my beta testers is having real problems with this
(on multiple platforms) but I'm unable to replicate the problem on my
setup at the moment.

The socketTimeoutInterval is set to 5000 but when the error occurs it
will repeatedly occur no matter how long you wait between requests
(once the error occurs network connectivity is pretty much broken).

There's a discussion in the forums that seems related. I did some tests today and got very inconsistent results; about 2/3 of the time I got return values from the POST and the rest of the time I get empty in both the result and in "it". I tinkered with the timeout interval but it didn't help.


Dr Terry Judd
Senior Lecturer in Medical Education
Medical Eduction Unit
Faculty of Medicine, Dentistry & Health Sciences
The University of Melbourne


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Phil Jimmieson  phil at liverpool.ac.uk<mailto:phil at liverpool.ac.uk>  (UK) 0151 795 4236  (Mobile) 07976 983164
Computer Science Dept., Liverpool University, Ashton Building, Ashton Street
Liverpool L69 3BX              http://www.csc.liv.ac.uk/~phil/
I used to sit on a special medical board... ...but now I use this ointment.





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Dr Terry Judd
Senior Lecturer in Medical Education
Medical Eduction Unit
Faculty of Medicine, Dentistry & Health Sciences
The University of Melbourne