Hello again list,
I noticed an issue with our NetCDF ImageMosaic coverages after upgrading from
2.9.0 to 2.10.0 The issue only seems to affect multi-parameter netcdf source
files and seems to fail silently unless in verbose logging mode. After the
upgrade, any data stored in a netCDF with multiple parameters returned zeros
for any data request. WMS requests resulted in a black box spanning the
dataset and WCS responses were valid containers, but all zeroed data. When I
switch to verbose logging I see a DEBUG statement that contains a stacktrace
with the following:
DEBUG [imagemosaic.catalog] - Skipping invalid granule
java.lang.IllegalArgumentException: Need to specify the coverageName for a
reader related to multiple coverages
at
org.geotools.coverage.io.netcdf.NetCDFReader.checkUnspecifiedCoverage(NetCDFReader.java:732)
at
org.geotools.coverage.io.netcdf.NetCDFReader.getOriginalEnvelope(NetCDFReader.java:753)
at
org.geotools.coverage.io.netcdf.NetCDFReader.getOriginalEnvelope(NetCDFReader.java:748)
at
org.geotools.gce.imagemosaic.GranuleDescriptor.init(GranuleDescriptor.java:365)
.
I see that some work was done under GEOT-5518 to add support for multiple bands
in NetCDF coverages and I suspect these are related. Is there a way to update
existing layers to handle the new multiple bands support without redeploying
everything? Perhaps a modification to the coverage.xml or properties file for
the affected coverages?
For clarity, my netcdf file contains the following parameters
CAT_GPML(time, z, y, x)
lat(y, x)
lon(y, x)
We don't expose the lat & lon parameters as they are only provided as a cross
check for the projection handling (and unfortunately we don't control the
source).
Thanks,
Kevin M. Weiss
Software Engineer
CRITICAL NETWORKS / HARRIS CORPORATION
harris.com / [email protected]
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