Hi Drussel,

what filesystem are you writing to? We had bad case of non-reproducible
metadata corruption when writing HDF5 to older version of Lustre.

Cheers,
Andy.

[email protected] wrote onĀ 2012-05-08:
> Having investigated further, the problem is not actually connected to
> reopening of HDF5 files, and occurs, intermittently, even when I don't
> reopen the file and instead just re-write the entries in the data sets.
> I have made a build of HDF5 with its internal memory management turned
> off (on a different machine), and run the whole thing through with
> valgrind. Valgrind reports no errors (nor does hdf5), but the resulting
> files are (sometimes) reported as having errors when accessed afterwards
> either by our code or tools like h5dump.
> 
> Any suggestions as to what to try next? We have numerous various simple
> tests of our code that don't exhibit the problem and, so far, my
> attempts to produce a simpler example have not yielding something
> useful. Thanks very much.
>



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