[OSM-dev] Datacorruption Part IV; where way members are not in the planet

[Brett Henderson]

Lennard wrote:
> Frederik Ramm wrote:
>   
>> The problem is not that big because, as has been pointed out already, 
>> you can always "upgrade" a planet file to be consistent by applying the 
>> matching daily diff.
>>     
>
> Can this not be done automatically by the create-weekly-planet script, 
> so the published weekly planet dump is consistent to begin with?
>   
Yes, I think it could.

Until a few weeks ago, osmosis wasn't including user id information in 
the files it produced.  This has been added so both the planet dump 
process and osmosis should produce identical information.

There are a few reasons why I haven't pushed this approach.  It has 
taken time to gain confidence that the changeset process is working 
reliably but it is looking pretty solid these days.  Also with the 
current db implementation there could be some misalignment due to 
history and current tables containing different data.  I'm not familiar 
with the scripts producing the planet so there could be more to it than 
I realise.

I'd tend to hang off until 0.6 is done where we have cleaner data and 
tighter database constraints.  That would be a good time to introduce this.