[OSM-dev] Data corruption :) II

[Stefan de Konink]

Tom Hughes wrote:
> Stefan de Konink wrote:
> 
>>> Occasional referential integrity problems = 1 (you :-)
>>
>> Fix = 1000 + 1 users! And no referential problems anymore + a nice 
>> reverse proxy infrastructure :) + Probably faster lookups.
> 
> + synchronisation issues

Minutely diffs work perfect. The NL crew is already creating a minutely 
diff tile cache invalidator; where statitics were already implemented.

> + loss of control unless all proxy targets are maintained by
>   the OSM admin team

The OSM admin team maintains the proxy. And targets get checked if they 
have the latest minutely's every hour -> if not, remove from pool.

>>> Seriously, there aren't that many problems considering. It's clearly
>>> not ideal, hence why it's being fixed. But the fix isn't as trivial as
>>> you make it sound, so it's been agreed to fix a few other problems and
>>> introduce some extra useful features at the same time, thus minimising
>>> down-time for everybody.
>>
>> What is the down time you expect for 0.6 migration?
> 
> We are still attempting to quantify that.

New server an option?


Stefan