repro -P seems to check status of dependancies too often #3644
Description
DVC 0.91.0, Windows 10, pip
Description
Running dvc repro -P on a large graph seems to check all the early dependences once for each output, even if it has already been checked.
In the following repo:
step1.dvc
|
----------------------------------------
| | | |
step2_A.dvc step2_B.dvc step2_C.dvc step2_D.dvc
Where each of the step 2 stages depends on steps 1, I think that calling dvc repro -P results in 4x checks of the outputs of step1.
I conclude this because, in my repo, I have several hundred stages in "step2" which all depend on a "step1" which is an import. When I run dvc repro -P, I get the
WARNING: DVC-file 'xxx.dvc' is locked. Its dependencies are not going to be reproduced.
message several hundred times.