[OSM-dev] [OSM-talk] Error while uploading with JOSM

SteveC steve at asklater.com
Fri Feb 8 08:07:18 GMT 2008


On 7 Feb 2008, at 23:45, David Earl wrote:

> On 07/02/2008 22:18, Keith Thomson wrote:
>> David Earl wrote:
>>> For the third time in a row, on separate occasions over three  
>>> weeks that
>>> I have been uploading a significant amount of data from JOSM, this  
>>> has
>>> happened again.
>> ...
>> I have had the same problem while running coastline uploads.  Im  
>> pretty
>> sure its more of an ISP problem as when the situation occurs there  
>> are
>> other websites that become unavailable for me (e.g.
>> http://www.cl.cam.ac.uk/research/dtg/weather/ as well as  
>> openstreetmap)
>> while other sites are perfectly accessible still.  Being near  
>> Cambridge,
>> your ISP wouldnt happen to be NTL/Virgin would it?  That is my  
>> isp....
>
> It would indeed, and I had wondered whether they may be applying some
> naive test for "dubious activity".

Andy used to get this on Virgin IIRC

>
>
> It is only www.openstreetmap.org.uk that gets blocked (I can still get
> at all other web sites, including the OSM wiki, so it is either domain
> or IP specific (I'll check which next time it happens) and it has  
> always
> been in exactly the same circumstances at the same stage in the  
> upload.
> The feature of the API REST interface is lots of rapid, small
> independent requests, which would be pretty unusual for most people.
>
> I'll try to reproduce it and see if I can still get at the server via
> another route while it appears to be inaccessible directly.
>
> I'm 99% certain that there isn't anything in my router that will block
> outgoing requests like this - the router doesn't look at that level,
> it's only concerned with packets.
>
> But I did also wonder whether MS Windows Defender might be doing
> something behind my back. It would be odd to apply it to outgoing
> requests, but if they were trying to protect users against trojans,  
> they
> might try to protect users against their machine being used as what
> might look like the source of a DoS attack.
>
>> On 07/02/2008 21:58, Tom Hughes wrote:
>>> It isn't specifically an API problem as the symptoms are that I get
>>> locked out of the www.openstreetmap.org domain as a whole, not  
>>> just JOSM
>>> uploads.
>>
>> Well that's all the same server, so I'm not quite sure what you
>> mean by that?
>
> I just meant that it didn't appear to be a problem with the API alone.
> (However, it could have been something in the API or how I am using it
> that was making the server inaccessible for some reason - e.g.  
> crashing
> it - but you confirmed this wasn't the case).
>
>> Are you sure you hadn't just lost network connectivity to UCL for
>> some reason? Were you actually able to connect to the server?
>
> No I wasn't, but because the symptoms were each time precisely the  
> same
> and specifically to do with uploading via JOSM, the obvious first  
> place
> to look is with something specific to the operation, and then with
> something to do with the server. When I can't see some server at all  
> but
> can see the rest of the world without problems, my first thought is  
> that
> it is the server, not me or my ISP. Isn't that a reasonable first
> assumption?
>
> Also, the last time it happened, someone else posted a message which
> reported identical symptoms at around the same time. I really don't
> think any more that it can be coincidence, but that doesn't mean it  
> is a
> server problem either, just that it is the first place to look.
>
> Curiously, when it comes back, the upload has always continued to
> completion, even when there is more remaining to do than the original
> upload did before dropping out.
>
> David
>
>
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have fun,

SteveC | steve at asklater.com | http://www.asklater.com/steve/






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