Plantain
commented
2 years ago I think I have tracked this all the way down to rio_tiler, in particular rio_tiler/io/base.py and geographic_bounds.
This method semi-randomly throws "Reprojection failed, err = -20, further errors will be suppressed on the transform object.", in which case it defaults to (-180.0, -90.0, 180.0, 90.0), and occasionally succeeds and returns (-179.9624834120246, -52.94556026404906, inf, inf). The inf breaks the json encoding.
def geographic_bounds(self) -> BBox:
"""return bounds in WGS84."""
try:
bounds = transform_bounds(
self.crs,
self.geographic_crs,
*self.bounds,
densify_pts=21,
)
except: # noqa
warnings.warn(
"Cannot dertermine bounds in WGS84, will default to (-180.0, -90.0, 180.0, 90.0).",
UserWarning,
)
bounds = (-180.0, -90, 180.0, 90)
return boundsIt looks like this behaviour is known about because in tile_exists there is this illuminating comment:
try:
dataset_bounds = transform_bounds(
self.crs,
self.tms.rasterio_crs,
*self.bounds,
densify_pts=21,
)
except: # noqa
# HACK: gdal will first throw an error for invalid transformation
# but if retried it will then pass.
# Note: It might return `+/-inf` values
dataset_bounds = transform_bounds(
self.crs,
self.tms.rasterio_crs,
*self.bounds,
densify_pts=21,
)
vincentsarago
It seems like Titiler can get itself in a state where subsequent reads to the same file return JSON errors. I am not sure if this is related to #409 yet.
It seems fairly easy to reproduce, I can reproduce it locally or on titiler.xyz just by repeatedly hitting tilejson.json, after about 2-3 hits it starts returning errors.
If I kill the worker locally it works fine for a few then starts erroring, returning 500's with: {"detail":"Out of range float values are not JSON compliant"}
For example:
while true; do curl 'http://localhost:8000/cog/tilejson.json?url=http://static2.skysight.io/demo.tiff&bidx=1&bidx=2&bidx=3'; done {"tilejson":"2.2.0","version":"1.0.0","scheme":"xyz","tiles":["http://localhost:8000/cog/tiles/WebMercatorQuad/{z}/{x}/{y}@1x?url=http%3A%2F%2Fstatic2.skysight.io%2Fdemo.tiff&bidx=1&bidx=2&bidx=3"],"minzoom":1,"maxzoom":7,"bounds":[-180.0,-90.0,180.0,90.0],"center":[0.0,0.0,1]}{"tilejson":"2.2.0","version":"1.0.0","scheme":"xyz","tiles":["http://localhost:8000/cog/tiles/WebMercatorQuad/{z}/{x}/{y}@1x?url=http%3A%2F%2Fstatic2.skysight.io%2Fdemo.tiff&bidx=1&bidx=2&bidx=3"],"minzoom":1,"maxzoom":7,"bounds":[-180.0,-90.0,180.0,90.0],"center":[0.0,0.0,1]}{"tilejson":"2.2.0","version":"1.0.0","scheme":"xyz","tiles":["http://localhost:8000/cog/tiles/WebMercatorQuad/{z}/{x}/{y}@1x?url=http%3A%2F%2Fstatic2.skysight.io%2Fdemo.tiff&bidx=1&bidx=2&bidx=3"],"minzoom":1,"maxzoom":7,"bounds":[-180.0,-90.0,180.0,90.0],"center":[0.0,0.0,1]}{"tilejson":"2.2.0","version":"1.0.0","scheme":"xyz","tiles":["http://localhost:8000/cog/tiles/WebMercatorQuad/{z}/{x}/{y}@1x?url=http%3A%2F%2Fstatic2.skysight.io%2Fdemo.tiff&bidx=1&bidx=2&bidx=3"],"minzoom":1,"maxzoom":7,"bounds":[-180.0,-90.0,180.0,90.0],"center":[0.0,0.0,1]}{"tilejson":"2.2.0","version":"1.0.0","scheme":"xyz","tiles":["http://localhost:8000/cog/tiles/WebMercatorQuad/{z}/{x}/{y}@1x?url=http%3A%2F%2Fstatic2.skysight.io%2Fdemo.tiff&bidx=1&bidx=2&bidx=3"],"minzoom":1,"maxzoom":7,"bounds":[-180.0,-90.0,180.0,90.0],"center":[0.0,0.0,1]}{"detail":"Out of range float values are not JSON compliant"}{"detail":"Out of range float values are not JSON compliant"}{"detail":"Out of range float values are not JSON compliant"}{"detail":"Out of range float values are not JSON compliant"}{"detail":"Out of range float values are not JSON compliant"}{"detail":"Out of range float values are not JSON compliant"}{"detail":"Out of range float values are not JSON compliant"}
Same result on titiler.xyz: while true; do curl 'https://titiler.xyz/cog/tilejson.json?url=http://static2.skysight.io/demo.tiff&bidx=1&bidx=2&bidx=3'; done
Stacktrace from local server: