I’m trying to explore the reference block intervals in a sparse mt with 10 samples, but I’m having sporadic issues. For example, my first attempt to write out
mt.entries() ran for over three hours without completing. The next attempt (the following day, on a new cluster) wrote the table within five minutes. Similarly, I just tried to export a subset of the entries table, and my first attempt was frozen for 10 minutes. When I started the command again, it wrote a bgzipped tsv within 5 seconds.
Is there a better way to look at the reference blocks in a sparse mt? Has anyone else reported strange time differences in processing the same data recently?