pull: empty screen for a few minutes before actual download

[shcheklein]

Version:

DVC version: 0.73.0
Python version: 3.6.8
Platform: Linux-4.15.0-1056-aws-x86_64-with-Ubuntu-18.04-bionic
Binary: False
Package: None
Filesystem type (cache directory): ('xfs', '/dev/nvme1n1')
Filesystem type (workspace): ('xfs', '/dev/nvme1n1')

Reproduce:

git clone git@github.com:iterative/dataset-registry-private.git
cd dataset-registry-private
dvc pull ILSVRC.dvc

Output:

First, it prints something very fast and everything disappears.

Then it hangs with an empty screen for a minute or two before querying the cache.

Probably it is downloading dir file?

[dberenbaum]

Unable to reproduce on main (I immediately see 0% Transferring| |0/1 [00:00<?, ?file/s] and it doesn't disappear). Closing.

[shcheklein]

Hmm, it's still the same for me. Multiple times not doing anything at all for a very long time.

Then it's downloading files, but it's very slow even with -j 50.

Progress bars got worse from the last time - I see only 2-3 of them constantly blinking.

[efiop]

Things improved in pull/fetch, but there is more to go. Closing this as stale.