v0.8.0a2

This is the release notes of v0.8.0a2. See here for the complete list of solved issues and merged PRs.

New Features

• DataFrame
  • Support initializing Mars objects from CUDA (#2308)
  • Support md.to_numeric (#2290, thanks @hoarjour!)
  • Gives an error when input DataFrame has unknown dtypes (#2355)
  • Added assign to DataFrame (#2362, thanks @hxri!)
  • Support reading csv file from oss (#2292, thanks @zebivy!)
• Tensor
  • Implements mars.tensor.stats.ks_2samp (#2324)
  • Implements mars.tensor.stats.ks_1samp (#2335)
• Learn
  • Support PyTorch Dataset for oscar (#2246, thanks @yuanchongtt!)
  • Add KFold support (#2363)
• Services
  • Add API to retrieve progress and status of tileables (#2357)
• Web
  • Add visualization page for tileable graphs (#2282, thanks @RandomY-2!)
  • Add storage infos in web (#2317)
  • Display tileable progress, status and dependency link type on task detail page (#2360, thanks @RandomY-2!)
• Others
  • [Ray] Rerun subtask for ray backend (#2288, thanks @keyile!)
  • Add experimental Dask-on-Mars support (#2289, thanks @loopyme!)

Enhancements

• Support setting multiple columns in DataFrame (#2303)
• Refactor tileable visualization classes (#2318)
• Create service classes to manage service and session operations (#2326)
• Improve wait_actor_pool_recovered (#2328, thanks @keyile!)
• Remove bokeh from package requirements (#2339)
• Optimize mars supervisor scheduling (#2325)

Bug fixes

• Fix hangs when worker main pool has failures. (#2286)
• Fix the error when multiple subtasks fetch the same data (#2322)
• [Ray] Fix ray ci (#2343, thanks @keyile!)
• Fix error in Dask-on-Mars when compute multiple objects (#2348, thanks @loopyme!)
• Fix KeyError when remote function returns None (#2371)
• Fix DataFrame comparison when data type is period (#2373)

Documentation

• Fix untranslated strings in doc (#2346)
• Fix docs of DataFrame.assign (#2367)