[Pytables-users] error creating table with many columns

[Stefan K. <pon...@ya...>]

I am getting an error creating a table with 1000+ columns, the error is


  #005: H5O.c line 2157 in H5O_new_mesg(): object header message is too
large (16k max)

the full error message is below, is there a limit on the number of
columns  I can put in a table?  There error also implies there is a
limit to the size of the attributes on a table?

thanks,
Stefan


HDF5-DIAG: Error detected in HDF5 library version: 1.6.4 thread 0. 
Back trace follows.
  #000: H5D.c line 1087 in H5Dcreate(): unable to create dataset
    major(15): Dataset interface
    minor(29): Unable to initialize object
  #001: H5D.c line 2258 in H5D_create(): can't update the metadata
cache
    major(15): Dataset interface
    minor(29): Unable to initialize object
  #002: H5D.c line 1843 in H5D_update_entry_info(): unable to update
type or space header \
messages
    major(15): Dataset interface
    minor(29): Unable to initialize object
  #003: H5O.c line 2037 in H5O_append(): unable to append to object
header
    major(12): Object header layer
    minor(25): Write failed
  #004: H5O.c line 2082 in H5O_append_real(): unable to create new
message
    major(12): Object header layer
    minor(29): Unable to initialize object
  #005: H5O.c line 2157 in H5O_new_mesg(): object header message is too
large (16k max)
    major(12): Object header layer
    minor(29): Unable to initialize object
Traceback (most recent call last):
  File "join.py", line 85, in ?
    join( [( table_a, 'obs' ), ( table_b, 'perf' )],
'crpAccountMatchKey' )
  File "join.py", line 59, in join
    expectedrows=len(master_table))
  File "/apps/lib/python2.4/site-packages/tables/File.py", line 571, in
createTable
    return self._createNode(where, name, Table, doCreateNode, _log)
  File "/apps/lib/python2.4/site-packages/tables/File.py", line 499, in
_createNode
    setattr(parent, name, node)
  File "/apps/lib/python2.4/site-packages/tables/Group.py", line 635,
in __setattr__
    value._g_putUnder(self, name)
  File "/apps/lib/python2.4/site-packages/tables/Leaf.py", line 232, in
_g_putUnder
    self._create()
  File "/apps/lib/python2.4/site-packages/tables/Table.py", line 396,
in _create
    self._createTable(self._v_new_title, self.filters.complib,
obversion)
  File "TableExtension.pyx", line 265, in
TableExtension.Table._createTable
tables.exceptions.HDF5ExtError: Problems creating the table



		
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