I have some code that keeps failing on and off on a netcdf read and was
returning what appeared to be an hdf error with netcdf 4.2. I built the
netcdf library with logging and it returned the log below. I had seen
this error earlier in the year. We never quite figured it out other than
that if we uncompressed the file offline before trying to read it we
could not reproduce the error but it has returned now. The file itself
we are trying to read has 15 variables and is compressed at level 2 and
is over 1Gb when uncompressed. Can any shed more information on what
this error log is saying? Is it the fact that the file is compressed
that is the cause? The file appears to be fine when I do an ncdump and
so on and sometimes the read succeeds without throwing an error.
#000: H5Dio.c line 174 in H5Dread(): can't read data
major: Dataset
minor: Read failed
#001: H5Dio.c line 449 in H5D_read(): can't read data
major: Dataset
minor: Read failed
#002: H5Dchunk.c line 1729 in H5D_chunk_read(): unable to read raw
data chunk
major: Low-level I/O
minor: Read failed
#003: H5Dchunk.c line 2760 in H5D_chunk_lock(): data pipeline read failed
major: Data filters
minor: Filter operation failed
#004: H5Z.c line 1120 in H5Z_pipeline(): filter returned failure
during read
major: Data filters
minor: Read failed
#005: H5Zdeflate.c line 136 in H5Z_filter_deflate(): memory
allocation failed for deflate uncompression
major: Resource unavailable
minor: No space available for allocation
Error reading variable using ncvgt -101
NetCDF: HDF error
--
Ben Auer, PhD SSAI, Scientific Programmer/Analyst
NASA GSFC, Global Modeling and Assimilation Office
Code 610.1, 8800 Greenbelt Rd, Greenbelt, MD 20771
Phone: 301-286-9176 Fax: 301-614-6246
