[osmosis-dev] Error on a node modified and deleted in the same changeset

[Michael Spreng]

Hi

This problem comes from the diff, when an object is deleted, the Version
is not incremented. But for logical reasons, it should. This
incrementation is missing in osmosis as well as osmconvert, so at the
moment, custom diffs can't be merged while keeping them sorted.

Michael

On 02.05.2013 20:28, Jocelyn Jaubert wrote:
> Hi,
>
> I have just switched to Geofabrik's diffs to update my Switzerland .pbf file, and I'm hitting an issue with diffs. I'm not quite sure if the issue is with osmosis or not.
>
> When downloading these two files:
>
> http://download.geofabrik.de/europe/switzerland-updates/000/000/058.osc.gz
> http://download.geofabrik.de/europe/switzerland-updates/000/000/059.osc.gz
>
> and merging them through --read-replication-interval
>
> You will see that node 559647562 is present twice, with the same changeset:
>
> <?xml version='1.0' encoding='UTF-8'?>
> <osmChange version="0.6" generator="Osmosis 0.41">
>   <modify>
>     <node id="559647562" version="2" timestamp="2013-04-29T12:55:06Z" uid="65044" user="hugi" changeset="15907651" lat="46.9473255" lon="7.4651306"/>
>   </modify>
>   <delete>
>     <node id="559647562" version="2" timestamp="2013-05-01T00:33:27Z" uid="65044" user="hugi" changeset="15907651" lat="46.9473255" lon="7.4651306"/>
>   </delete>
> </osmChange>
>
> So first question: should this be correctly handled by osmosis ? Currently, a --sort-change complains about a non-sorted file:
>
> GRAVE: Thread for task 1-read-xml-change failed
> org.openstreetmap.osmosis.core.OsmosisRuntimeException: Pipeline entities are not sorted, previous entity type=Node, id=559647562, version=2 current entity type=Node, id=559647562, version=2.
>
>
>
> According to this node history:
>
> http://www.openstreetmap.org/browse/node/559647562/history
>
> this node was in fact deleted in a following changeset
>
> Could there be an issue with how the diffs are generated ?
>
>
> Thanks,
> Jocelyn
>
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