Release hdf5 disk memory after table or node removal with pytables or pandas

Question

I\'m using HDFStore with pandas / pytables.

After removing a table or object, hdf5 file size remains unaffected. It seems this space is reused afterwards when additi

Answer 1

see here

you need to ptrepack it, which rewrites the file.

ptrepack --chunkshape=auto --propindexes --complevel=9 --complib=blosc in.h5 out.h5

as an example (this will also compress the file).