WMS-cache does not "tile" requests one same boundaries between session resulting in re-requests of already cached areas
|Reported by:||jjaf.de||Owned by:||team|
|Version:||tested||Keywords:||WMS cache hasExactMatch tiling|
WMS does pre-load cached areas but since
is false since the viewport is slighty shifted although the complete area can be rendered the whole area is re-requested from WMS-server
Re-requests are resulting in having a huge cache of [session]-times the size and stress on network and WMS-server.
A solution could be to introduce "tiling" in maybe
so that the same bounding-boxes for WMS-requests having shifted viewports are being calculated between sessions or have an algorithm to recognise total coverage from cache instead of
I would suggest the former is easier to implement maybe with help from the tiling-projection.
Set viewport to exactly same coordnates and zoom before adding WMS-layer with cache e.g. by using "Jump To Position".