"dvc metrics show -a" doesn't work if a metric file is missing

[mastaer]

Hi everyone,

I have three branches. Every branch is one experiment. One experiment should create a metric file as output. Two experiments are already finished, the third experiment is still running. So I have two experiments (= branches) with a metric file and one without.

Now I want to use "dvc metrics show -a" to get the result from the two already finished experiments. But I got an error that the branch with the running experiment does not have a metric file.

I am working with the pip installed DVC (version 0.35.7). The system is a ubuntu 18.04 and use anaconda.

I got help from ruslan in the forum: https://discordapp.com/channels/485586884165107732/563406153334128681/570262271847039028

thanks for the help!

cmd: python code/train.py
deps:

• path: data/toy_3dpatients_on_mrt.npy
• path: data/toy_3dpatients_on_mrt_settings.npy
• path: data/toy_3dpatients_on_mrt_test.npy
  outs:
• cache: false
  metric: true
  path: metrics/test_local_False.json
• cache: true
  metric: false
  path: tensorboards/test_local_False_test
• cache: true
  metric: false
  path: tensorboards/test_local_False_train
• cache: true
  metric: false
  path: tensorflow_models/model_weights_test_local_False.h5

And here is the output from the command dvc metrics show -v -a

(tf-gpu) j@t:~/Documents/gitlab/0005_3d_siamesenet$ dvc metrics show -v -a
ERROR: unexpected error - [Errno 2] No such file in branch 'test_local': 'metrics/test_local_False.json'

Traceback (most recent call last):
File "/home/j/anaconda3/envs/tf-gpu/lib/python3.6/site-packages/dvc/main.py", line 37, in main
ret = cmd.run_cmd()
File "/home/j/anaconda3/envs/tf-gpu/lib/python3.6/site-packages/dvc/command/base.py", line 60, in run_cmd
return self.run()
File "/home/j/anaconda3/envs/tf-gpu/lib/python3.6/site-packages/dvc/command/metrics.py", line 47, in run
recursive=self.args.recursive,
File "/home/j/anaconda3/envs/tf-gpu/lib/python3.6/site-packages/dvc/repo/metrics/init.py", line 18, in show
return show(self.repo, *args, **kwargs)
File "/home/j/anaconda3/envs/tf-gpu/lib/python3.6/site-packages/dvc/repo/metrics/show.py", line 263, in show
metrics = _read_metrics(self, entries, branch)
File "/home/j/anaconda3/envs/tf-gpu/lib/python3.6/site-packages/dvc/repo/metrics/show.py", line 237, in _read_metrics
fd = self.tree.open(out.path)
File "/home/j/anaconda3/envs/tf-gpu/lib/python3.6/site-packages/dvc/scm/git/tree.py", line 34, in open
raise IOError(errno.ENOENT, msg, relpath)
FileNotFoundError: [Errno 2] No such file in branch 'test_local': 'metrics/test_local_False.json'

[efiop]

@mastaer The fix for this bug has been released in 0.40.1. Please upgrade. Thanks a lot for this bug report! 🙂