exp queue: monitor queue status

[pmrowla]

Support monitoring queue status and viewing output of running experiments

• dvc queue status
• dvc queue attach
• dvc queue logs

Optional/under discussion:

Remove queued exps from exp show by default and implement exp show --queue option to include queued exps in the table

[dberenbaum]

Does this include how to deal with failed experiments? We need the ability to see which experiments failed instead of having them "disappear."

Sorry for changing requirements here, but can dvc queue attach show all output up to the current point instead of streaming only new output? This would also be really useful for completed and failed experiments. Otherwise, I think it's hard to see what's happening in the experiments, and we may need a separate command like dvc queue log.

Edit: Looking some more, I think dvc queue logs is actually a more necessary command than dvc queue attach. There's no interaction during an experiment, so directly attaching doesn't add that much value.

[dberenbaum]

dvc queue status feedback (besides showing failed experiments as mentioned above):

• Need a way to show completed experiments and to connect them to the experiment name/rev.
• Can dvc queue status show short revs instead of the long ones?
• Nice to have: can we show the time when the experiment actually started running?

[karajan1001]

close as all of the features had been implemented