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pull hangs even if all the files needed exist in cache #1839

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shcheklein opened this issue Apr 6, 2019 · 1 comment

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@shcheklein
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commented Apr 6, 2019

I've noticed that dvc pull hangs for a few seconds every time you run it. Even if all the files needed exist in cache.

(.env) [ivan@ivan ~/Projects/example-get-started]$ dvc pull
Preparing to download data from 'https://remote.dvc.org/get-started'
Preparing to collect status from https://remote.dvc.org/get-started
[#########                     ] 30% Collecting information

Is it expected or just is it just a lack of optimization?

Can be reproduced with the example-get-started project and HTTP remote.

@efiop

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commented Apr 6, 2019

Lack of optimization. Here https://github.com/iterative/dvc/blob/0.34.2/dvc/remote/local.py#L684 we collect full-blown status even for an already present cache on dvc pull, which is causing that delay. Need to fix that by skipping collecting status for already present cache files on pull/fetch. Thanks for reporting this! 🙂

@mroutis mroutis added the performance label Apr 6, 2019

@pared pared assigned pared and unassigned pared Apr 15, 2019

@efiop efiop added the c8-full-day label Apr 25, 2019

@efiop efiop added this to To do in Weekly tasks via automation Apr 25, 2019

@mroutis mroutis moved this from To do to In progress in Weekly tasks Apr 26, 2019

mroutis added a commit to mroutis/dvc that referenced this issue Apr 30, 2019

mroutis added a commit to mroutis/dvc that referenced this issue May 1, 2019

mroutis added a commit to mroutis/dvc that referenced this issue May 1, 2019

@efiop efiop closed this in #1950 May 1, 2019

Weekly tasks automation moved this from In progress to Done May 1, 2019

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