Hi there,

I'm not sure if I'm doing something wrong, but I have a strange behavior of 
h5repack.

I am creating a HDF5 file with a simple dataset and attach a dimension scale 
dataset to the first dimension of that dataset. Because my Data can be 
interpreted in different ways, I need to attach some custom attributes to the 
scale dataset, for example "UNITS" or "SUB_CLASS".
So far so good, writing that file works as expected, HDFView shows the contents 
correctly, reading the file back works fine.

When I run h5repack with that file however, I get the following output:

HDF5-DIAG: Error detected in HDF5 (1.8.15-patch1) thread 0:
  #000: C:\autotest\HDF518ReleaseRWDITAR\src\H5A.c line 259 in H5Acreate2(): 
unable to create attribute
    major: Attribute
    minor: Unable to initialize object
  #001: C:\autotest\HDF518ReleaseRWDITAR\src\H5Aint.c line 167 in H5A_create(): 
attribute already exists
    major: Attribute
    minor: Object already exists
h5repack: <myfile.h5>: Could not copy data to: myfile-repacked.h5

When I debug into the h5repack tool, I localized the point at which some error 
occurs.
It is, when h5repack tries to create one of my custom attributes of the 
dimension scale dataset (h5repack_refs.c, line 599, attr_out = H5Acreate2(...)) 
==> attr_out = -1, called from do_copy_refobjs()

Has anybody some idea, what could go wrong ?
If it helps I could post the dumps of the original and the repacked files...

Best regards,
Detlef

---
Detlef Sanchen
Senior Software Engineer

WITec GmbH
Lise-Meitner-Str. 6, 89081 Ulm, Germany
Phone: +49 (0)731 140 70-0, Fax: +49 (0)731 140 70-200
Email: [email protected], web: www.WITec.de

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