[Tile-serving] [openstreetmap/mod_tile] Config: more than 10 configurations found (Issue #396)

[Hokascha]

For example, I am visualizing sensor data as some kind of heatmap. That heatmap is generated once per day and the user can freely enable overlay layers for any date - resulting in a huge amount of different configs. However, this would also be possible using vector layers at the cost of performance.

A second possible use case would be something like mapbox where users can create their own map styles and get an own config for every user map.

In the end, there will always be memory limits in the current architecture. We would need some kind of dynamic configuration to solve this. In my case, it's simply the underlying source  shape file that changes, so having variables in the config like $URL and passing that to the XML interpreter could easily provide hundreds of different configurations in a single renderd config section. But I am not deep enough in the code to estimate if this is possible.

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