[netcdfgroup] Unusable hdf5 files as result of chunking

To: NetCDF Group List <netcdfgroup@xxxxxxxxxxxxxxxx>
Subject: [netcdfgroup] Unusable hdf5 files as result of chunking
From: Heiko Klein <Heiko.Klein@xxxxxx>
Date: Thu, 23 Oct 2014 13:14:46 +0200

Hi,

when chunking some files, they are afterwards unusable. Running the command;

$ nccopy -k 4 -c "time/1,X/,Y/" aromeisingoperasjonell.ncaromeisingoperasjonell.nc4


works well, but then

$ ncdump -hs aromeisingoperasjonell.nc4
netcdf aromeisingoperasjonell {
dimensions:
NetCDF: HDF error
Location: file ncdump.c; line 1381


When running the nccopy command without chunking, the hdf5 file is usable.

I tried nccopy both with netcdf 4.3.2 and netcdf 4.3.0, both withhdf5-1.8.11 on ubuntu 12.04 64bit.

When removing the variable h(X,Y) from the example-file, it seems towork with chunking?



Link to  aromeisingoperasjonell.nc.gz (122 MB): https://db.tt/RQpafocg



Best regards,

Heiko

--
Dr. Heiko Klein                              Tel. + 47 22 96 32 58
Development Section / IT Department          Fax. + 47 22 69 63 55
Norwegian Meteorological Institute           http://www.met.no
P.O. Box 43 Blindern  0313 Oslo NORWAY

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