Xuye Qin

**Is your feature request related to a problem? Please describe.** Now, we cannot know what the worker is executing from the web UI, we need to show them.

**Is your feature request related to a problem? Please describe.** We can support restarting entire service.

[BUG] Failover remote functions failed

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**Describe the bug** Failover remote functions failed. **To Reproduce** To help us reproducing this bug, please provide information below: 1. Your Python version 2. The version of Mars you use...

Now, `df.groupby().nunique()` would be delegated to `transform` to perform execution, it will be a shuffle operation which is very time consuming, we can delegate it to `aggregation` which is way...

# Motivation Now, when tileables have large number of chunks, building expr, subtask graph and so forth could become the bottleneck, we need to try to reduce the overhead. #...

## What do these changes do? This PR added pandas api coverage doc ## Related issue number Fixes #xxxx ## Check code requirements - [ ] tests added / passed...

Add backend for xarray

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**Is your feature request related to a problem? Please describe.** We can implement a xarray backend in Mars, refer to https://xarray.pydata.org/en/stable/internals/how-to-add-new-backend.html .

**Is your feature request related to a problem? Please describe.** `cluster.AffinityPropagation` can be introduced, sklearn version is https://scikit-learn.org/stable/modules/generated/sklearn.cluster.AffinityPropagation.html

**Describe the bug** `mars.tensor.array_equal` raises error when input tensor's dtype is string. **To Reproduce** To help us reproducing this bug, please provide information below: 1. Your Python version 2. The...

Mars roadmaps and enhancement proposals

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All proposals and roadmaps of Mars are listed here. Suggestions and discussions are sincerely welcomed. Roadmaps ---------- DataFrame (Phase 1: #495, done) Distributed engine (#493) Enhancement Proposals ------------------------ ### Project...