Readability would be better if there were more verbs - I like the name of "_get_relmap" but then next we have "_sqlite_package_name" - maybe add a "_get" to the front of the rest of the similar functions?

Now that I think about it, though, a lot of these are probably doing similar things to other teuthology tasks. Does teuthology.misc have helpers like this? If not, standardizing on one set would be a really nice idea.