Re: [OSM-dev] Why are so many changeset so large?

2012-10-17 Thread Paweł Paprota
On 10/17/2012 07:43 AM, Paweł Paprota wrote: I agree. I will add changeset comments to changeset descriptions on the demo instance and let's see how this turns out. I said that but then I remembered that changeset metadata is not available in the replication feed - only through public API or

Re: [OSM-dev] Why are so many changeset so large?

2012-10-17 Thread Matt Amos
On Wed, 2012-10-17 at 00:28 +0100, Tom Hughes wrote: On 17/10/12 00:04, Alex Barth wrote: - Are there technical reasons why changesets should tend to be large? Are they expensive on some level? I believe it's entirely because we've got so many people doing mechanical or semi-mechanical

Re: [OSM-dev] Why are so many changeset so large?

2012-10-17 Thread Andy Allan
On 17 October 2012 13:53, Matt Amos zerebub...@gmail.com wrote: getting to the point: this might to some extent mitigate the large changesets issue, as it would allow bboxes to be collected at a smaller granularity. however, it wouldn't be a full solution and we'd probably still need

Re: [OSM-dev] Why are so many changeset so large?

2012-10-17 Thread Paweł Paprota
On 10/17/2012 03:30 PM, Andy Allan wrote: Basically, I see no need to worry about the extent of bounding boxes, and no need to move to having bboxes on uploads instead of changesets or other complications. No matter what we do, if your interest in a changeset extends beyond the details of its

Re: [OSM-dev] Why are so many changeset so large?

2012-10-17 Thread Tom Hughes
On 17/10/12 17:20, Alex Barth wrote: Matt Amos wrote: from this, we get a single changeset/#id/upload call which applies atomically. Is that so? I thought changesets were not applied atomically leading to issues where it is hard to find out what data got applied when a connection breaks

Re: [OSM-dev] Why are so many changeset so large?

2012-10-17 Thread Paweł Paprota
On 10/17/2012 06:20 PM, Alex Barth wrote: It seems that OWL and Activity Streams have the exact same problem here... I have been talking with Matt today on IRC and to me it looks like we have been asking ourselves the same questions and overall I think that replacing a big chunk of the

Re: [OSM-dev] Why are so many changeset so large?

2012-10-17 Thread Paul Norman
From: Alex Barth [mailto:a...@mapbox.com] Subject: Re: [OSM-dev] Why are so many changeset so large? BTW, I did some cursory digging in the changesets dump and found that actually only a relatively small percentage of changesets are geographically large. Trying to use the history tab

Re: [OSM-dev] Why are so many changeset so large?

2012-10-17 Thread Michael Kugelmann
On 17.10.2012 09:15, Jochen Topf wrote: I think one reason people add bad changeset comments and organize their changesets in a bad way is that for most people those changesets and the comments just disappear into a black hole. One thing that is also bad in my point of view ist that you can't

[OSM-dev] Why are so many changeset so large?

2012-10-16 Thread Alex Barth
I really like how activity streams shows easy-to-understand changes on the map using changemonger [1,2]. At the same time it creates an alternative break down of changes that is more granular than changesets. This diverts attention from _comments on changesets_. This is not ideal in my mind -

Re: [OSM-dev] Why are so many changeset so large?

2012-10-16 Thread Tom Hughes
On 17/10/12 00:04, Alex Barth wrote: - What are the recommendations for change set sizes? Personally I tend to put everything that is logically grouped together in one changeset where possible. But by that I mean that I'll spend a few hours out collecting data in a small area and then

Re: [OSM-dev] Why are so many changeset so large?

2012-10-16 Thread Eugene Alvin Villar
Hi Alex, What do you mean by large? Do you mean changesets that span a large area (spanning whole continents)? Or changesets that have a lot of objects modified (perhaps more than 1000)? Based on the examples you provided, it seems you mean the former. Is this correct? Eugene On Wed, Oct 17,

Re: [OSM-dev] Why are so many changeset so large?

2012-10-16 Thread Alex Barth
Eugene - right, I mean changesets that are geographically large. On Oct 16, 2012, at 8:03 PM, Eugene Alvin Villar sea...@gmail.com wrote: Hi Alex, What do you mean by large? Do you mean changesets that span a large area (spanning whole continents)? Or changesets that have a lot of

Re: [OSM-dev] Why are so many changeset so large?

2012-10-16 Thread Paweł Paprota
On 10/17/2012 01:04 AM, Alex Barth wrote: I really like how activity streams shows easy-to-understand changes on the map using changemonger [1,2]. At the same time it creates an alternative break down of changes that is more granular than changesets. This diverts attention from _comments on

Re: [OSM-dev] Why are so many changeset so large?

2012-10-16 Thread Hartmut Holzgraefe
On 10/17/2012 01:04 AM, Alex Barth wrote: - http://www.openstreetmap.org/browse/changeset/13514072 wheelmap_visitor is sort of a bot, it uploads changes made to the wheelchair=* accessibility tags by anonymous users on http://wheelmap.org/ It only touches that one tag. It generates a new