[python-package] [dask] Add DaskLGBMRanker#3708

Merged

jameslamb merged 20 commits intomicrosoft:masterfrom ffineis:dask/ranker

Jan 22, 2021

+265-21

Commits on Jan 1, 2021

ranker support wip
ffineis
committed

Commits on Jan 2, 2021

fix ranker tests
ffineis
committed

Commits on Jan 4, 2021

fix _make_ranking rnd gen bug, add sleep to help w stoch binding port failed exceptions
ffineis
committed

Commits on Jan 7, 2021

add wait_for_workers to prevent Binding port exception
ffineis
committed

Commits on Jan 11, 2021

another attempt to stabilize test_dask.py
ffineis
committed

Commits on Jan 16, 2021

Commits on Jan 19, 2021

Commits on Jan 22, 2021