Hi,

I just made a test with trunk GeoServer, I basically perform this request 
several times:

http://localhost:8075/geoserver/gwc/service/wmts?REQUEST=GetTile&SERVICE=WMTS&VERSION=1.0.0&LAYER=sf:AggregateGeoFeature&STYLE=&TILEMATRIX=EPSG:4326:6&TILEMATRIXSET=EPSG:4326&FORMAT=application/x-protobuf;type=mapbox-vector&TILECOL=78&TILEROW=7

and once the needed tiles are cached I always get an HIT (100% hit).

If you want to put a breakpoint the code responsible for updating the hits is 
this one:
https://github.com/nmco/geowebcache/blob/adf4f9ccf59a5124986093d8fa04471c5e6feee8/geowebcache/core/src/main/java/org/geowebcache/conveyor/ConveyorTile.java#L240-L244

So maybe you are hitting some strange corner case or a issue specific to your 
GS version.
That say I don't know much about the vector tiles format so maybe someone will 
have a better feedback.

If you don't get any more feedback, I would go ahead and open an issue with 
enough data and steps to reproduce it:
https://osgeo-org.atlassian.net/projects/GEOS/summary

Regards,

Nuno Oliveira

On 07/12/2017 01:08 PM, Ben Jerrim wrote:
Hey Nuno, if i seed the layer for png8 and request these tiles, i get a 100%
HIT on the cache for the requests. If i seed the same layer for the
mapbox-vector format I get about a 10% HIT on the cache. Apart from the
format value, the request query string is identical. I'm using the default
'line' style in both cases.

It does seem very strange.





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Nuno Miguel Carvalho Oliveira
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