mapbox/tilemill — Issue #1120: limit the number of columns viewed at once in datasource inspector
Author: springmeyer
Created: 2012-01-11 16:57:50+00:00
State: open
Labels: wishlist

With an osm2pgsql import you can end up with hundreds of columns. It appears that even if I modify tilemill's `Datasource.server.bones` to only show 100 features at a time, given the massive number of columns this hammers Chroms ability to render the grid. Basically what I'm seeing is that "ChromeRenderer" shows up as pinned at 100% and the grid is un-movable/hung. Chrome in general becomes ultra sluggish and requires a restart to perform well again. Perhaps there is a chrome bug or memory leak, but it seems important at least on the tilemill side to try to limit the # of columns show to something like 50/100.

Also, we currently limit the rows to 1000 - shouldn't this be something more like 200 ?