Hi,
On 05/11/11 15:31, Brett Henderson wrote:
I then used the osc file format to create not only the commonly used
daily/hourly/minutely replication files, but also a complete dump of
database history updated daily (stored in one file per day).
http://planet.openstreetmap.org/history/
I was slightly surprised then to see the creation of the new full
history files.
I wasn't sure what these are, and I think I am still confused. What is
the difference between the daily replication file and the file in
/history/? Assuming I want to have a local, current full history file,
how can I use these diffs to amend an existing full file that I have?
But I do wonder why we've now gone back to a single
massive file approach which is updated rarely and requires a full
download each time when the existing files allow incremental download of
recent changes.
Is it so bad to generate a full history file four times a year? I
haven't done the maths but I guess that downloading 300 daily diffs and
applying them to a 300-day old history file will take some time too.
What happens if users change their account names, or set their "public"
flag?
It leaves me with a few questions:
* Are the Osmosis-based daily full history extracts even used?
Should I disable/delete them?
I'm not using them but mainly because I don't know how ;)
Bye
Frederik
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