Francesc Alted wrote:
> Actually both PyTables and HDF5 have caches, and this is certainly the
> problem. You can disable caches on the PyTables side by setting the
> NODE_CACHE_SLOTS parameter to 0. You may also try to disable the HDF5 cache
> for nodes by setting METADATA_CACHE_SIZE to 0 too (only if you are using HDF5
> 1.8.x), but I don't think this scenario is supported yet in HDF5. More info
> about these paramteres in:
>
> http://www.pytables.org/docs/manual/apc.html#id356485
I'm having a problem with setting these to 0. (It's probably the
METADATA_CACHE_SIZE, since it's an HDF5 library error.) And setting it
in both the reader and writer is having no effect.
In [8]: fyle = tables.openFile("eggs.h5",mode="a",
METADATA_CACHE_SIZE=0, NODE_CACHE_SLOTS=0)
HDF5-DIAG: Error detected in HDF5 (1.8.4) thread 0:
#000: H5F.c line 2538 in H5Fset_mdc_config():
H5AC_set_cache_auto_resize_config() failed.
major: Invalid arguments to routine
minor: Bad value
#001: H5AC.c line 2743 in H5AC_set_cache_auto_resize_config(): Bad
cache configuration
major: Invalid arguments to routine
minor: Bad value
#002: H5AC.c line 3026 in H5AC_validate_config(): error(s) in new config.
major: Invalid arguments to routine
minor: Bad value
#003: H5C.c line 8256 in H5C_validate_resize_config(): initial_size
must be in the interval [min_size, max_size]
major: Invalid arguments to routine
minor: Bad value
In [9]: tables.hdf5Version
Out[9]: '1.8.4'
In [18]: tables.__version__
Out[18]: '2.1.2'
(I also tried setting the variable in tables.parameters instead of
openFile and got the same error.)
--
Anthony Foglia
Princeton Consultants
(609) 987-8787 x233
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