Using geoserver 2.9.2. I'm generating vector-tiles (geojson output, EPSG:27700) for the full extent of a layer, for only one zoom level. Estimated number of tiles is around 17.000.000. After full generation, when I can see that each job has completed, let's say, 2125000 tiles, on disk I have only around 1.000.000 files.
the disk quota is set at 10 GiB, and the total size of tiles cache is 4.5 GiB.
I tried to use only one thread... same result: the tiles completed displayed by GWC interface is different by the number of files on disk.
In OL, when I hit the missing tile, and on the request header I can see the MISS, on disk, the missing file is generated.
The geoserver is running in a docker container, with cachedir mapped on a NAS. (I tried also on a fresh installed geoserver (not using a docker container)
Somebody know what is with this difference between GWC completed tiles and actual files on disk?
note1: if for a given extent is generating 16 PNG files, for the same extent is generating only 1 geojson file.
The ratio between PNG generated files and GEOJSON generated files is 16:1, which makes sense: for ~17.000.000 estimated tiles to generate ~1.000.000 files. The rest of vector tiles are missing, and when I request a missed one, the header is marked as MISS and is generated on disk.