[OSM-talk] JOSM upload failure

[Alex S.]

Stephen Hope wrote:
> I was uploading a big section of data when I had an connection failure
> of some kind, and the upload eventually timed out. It had uploaded a
> lot of nodes, but hadn't got as far as the ways yet.
> 
> Can I assume that if I just try and upload the same data again (I have
> it saved) that it won't duplicate the nodes that uploaded last time?

If you saved after the failed upload, yes.  JOSM sets new nodes and ways 
to a negative number when you're working, then when it (the node or way) 
is uploaded, JOSM changes the number to it's 'official' id number.  If 
you retry or save to retry later, the uploaded nodes are no longer 
marked as new.