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dask

28 indexed repositories · View on GitHub

dask
Parallel computing with task scheduling

Python · 13921 stars
dask-tutorial
Dask tutorial

Jupyter Notebook · 1859 stars
distributed
A distributed task scheduler for Dask

Python · 1692 stars
dask-ml
Scalable Machine Learning with Dask

Python · 950 stars
dask-examples
Easy-to-run example notebooks for Dask

Jupyter Notebook · 387 stars
dask-labextension
JupyterLab extension for Dask

TypeScript · 329 stars
dask-kubernetes
Native Kubernetes integration for Dask

Python · 324 stars
dask-jobqueue
Deploy Dask on job schedulers like PBS, SLURM, and SGE

Python · 256 stars
dask-docker
Docker images for dask

Jupyter Notebook · 243 stars
dask-image
Distributed image processing

Python · 226 stars
dask-gateway
A multi-tenant server for securely deploying and managing Dask clusters.

Python · 148 stars
dask-cloudprovider
Cloud provider cluster managers for Dask. Supports AWS, Google Cloud Azure and more...

Python · 147 stars
cachey
Caching based on computation time and storage space

Python · 142 stars
partd
Concurrent appendable key-value storage

Python · 107 stars
helm-chart
Helm charts for Dask

YAML · 100 stars
dask-expr

Python · 89 stars
dask-glm

Python · 78 stars
zict
Useful Mutable Mappings

Python · 72 stars
dask-yarn
Deploy dask on YARN clusters

Python · 69 stars
dask-mpi
Deploy Dask using MPI4Py

Python · 56 stars
8 more repositories live on View on GitHub

Beginner friendly Everything

Open All

__version__ resolves to "unknown" when installed via conda due to missing __commit_id__ in _version.py Open

needs triage

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

dask/dask#12591 · Opened Sep 9, 2026
da.from_zarr does not use shards (da.from_array does) Open

needs triage

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

dask/dask#12586 · 1 comment · Opened Sep 8, 2026
da.to_zarr writes corrupt data when specifying chunks or shards Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 72/100

dask/dask#12583 · Opened Sep 4, 2026
Support irregular array chunks using zarr Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 50/100

dask/dask#12581 · Opened Sep 1, 2026
set_index on read_parquet(dtype_backend="pyarrow") raises TypeError: data type '...' not understood for nested Arrow dtypes Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 52/100

dask/dask#12580 · Opened Sep 1, 2026
dask `from_npy_stack` RCE via Ungated `pickle.load` on the `.npy` Stack `info` Metadata File Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 38/100

dask/dask#12578 · Opened Aug 30, 2026
Scipy's spmatrix deprecation keeps the Upstream nightly red after #9351 — all 14 test_serialize_scipy_sparse cases fail Open

needs triage

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

dask/distributed#9353 · Opened Aug 21, 2026
set_index(..., npartitions=...) can leave inconsistent divisions metadata Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 68/100

dask/dask#12565 · 1 reaction · Opened Aug 19, 2026
Dask left merge carries over wrong index values in the presence of empty partitions Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 68/100

dask/dask#12564 · 1 comment · 1 reaction · Opened Aug 19, 2026
Assigning a DataFrame column with dd.to_datetime() changes dtypes of unrelated columns Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 65/100

dask/dask#12556 · Opened Aug 15, 2026
Dask optimization of [merge_asof + drop] graphs removes columns prematurely Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 68/100

dask/dask#12544 · 1 comment · Opened Aug 7, 2026
Unable to save dask dataframe containing list column with pandas==3 Open

needs attention needs triage

Difficulty 3/5 1-2 days Newbie friendliness 55/100

dask/dask#12543 · 1 comment · Opened Aug 6, 2026
Autochunking fails with zero length dimensions Open

needs attention needs triage

Difficulty 3/5 1-2 days Newbie friendliness 76/100

dask/dask#12537 · Opened Aug 1, 2026
Interest in Codex re-write of the dashboard? Open

needs triage

Difficulty 5/5 Over a week Newbie friendliness 25/100

dask/distributed#9339 · Opened Jul 31, 2026
Implicit re-exports in `__init__.py` Open

needs attention needs triage

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

dask/dask#12526 · Opened Jul 28, 2026
LSF broken for runtimes given in HH:MM:SS format Open

bug LSF

Difficulty 3/5 1-2 days Newbie friendliness 65/100

dask/dask-jobqueue#703 · 1 comment · Opened Jul 28, 2026
DaskJob stuck in Running forever Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

dask/dask-kubernetes#975 · Opened Jul 23, 2026
ci job failes on main due to upstream dependency changes Open

Difficulty 3/5 1-2 days Newbie friendliness 75/100

dask/dask-gateway#944 · Opened Jul 23, 2026
dask-scheduler command not found with newer versions of distributed Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 52/100

dask/distributed#9335 · 1 comment · Opened Jul 22, 2026
dask.visualize shows unfused graphs, but scheduler runs fused graph Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

dask/dask#12517 · 1 comment · Opened Jul 22, 2026
dask-expr bug: `dd.drop([], axis=1)` raises `ValueError` Open

needs attention needs triage

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

dask/dask#12510 · Opened Jul 20, 2026
Optimized graph size depends on PYTHONHASHSEED (up to 30x task-count blowup) Open

needs attention needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

dask/dask#12507 · Opened Jul 16, 2026
persist() on a root read_parquet with column projection returns a corrupt collection; any later compute fails with "lost dependencies" Open

needs attention needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

dask/dask#12488 · 1 comment · Opened Jul 4, 2026
dask-worker not found on the CLI in 2026.6.0 Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

dask/dask-cloudprovider#485 · Opened Jul 3, 2026
It should be possible to provide custom Scheduler and Worker classes to ECSCluster Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

dask/dask-cloudprovider#484 · Opened Jul 1, 2026
Task._update_task crashes with "not enough values to unpack" when describe_tasks returns empty tasks Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

dask/dask-cloudprovider#483 · Opened Jun 29, 2026
Adaptivity should be managed on the scheduler Open

needs triage

Difficulty 5/5 Over a week Newbie friendliness 28/100

dask/distributed#9307 · 4 comments · Opened Jun 26, 2026
Frisky Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

dask/community#445 · Opened Jun 25, 2026
SpecCluster._correct_state_internal closes workers with Nanny's default 5s timeout; shutdown often fails on LocalCluster(processes=True) Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

dask/distributed#9300 · 3 comments · Opened Jun 12, 2026
Dask to_zarr warns and rechunks on existing array template Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 68/100

dask/dask#12458 · Opened Jun 12, 2026
`clone()` corrupts graphs containing `Task`/`GraphNode` values, breaking task-spec fusion Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 55/100

dask/dask#12455 · Opened Jun 11, 2026
Severe repartition slowdown for wide PyArrow-string DataFrames with unknown divisions Open

needs triage

Difficulty 4/5 3-5 days Newbie friendliness 45/100

dask/dask#12449 · 1 comment · Opened Jun 8, 2026
⚠️ Upstream CI failed ⚠️ Open

upstream

Difficulty 4/5 3-5 days Newbie friendliness 35/100

dask/dask#12446 · Opened Jun 5, 2026
Document (or extend) which dask.array APIs respect array.backend for host literals Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 48/100

dask/dask#12440 · 1 comment · Opened Jun 3, 2026
Security: operator Docker image uses python:3.12 (full) shipping 133 CRITICAL CVEs Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

dask/dask-kubernetes#973 · 1 comment · Opened May 27, 2026
Error calling dd.to_dask_array on a subset of columns from dataframe read from parquet file Open

needs attention needs triage

Difficulty 3/5 1-2 days Newbie friendliness 55/100

dask/dask#12411 · 5 comments · Opened May 22, 2026
Drop Python 3.10? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

dask/community#443 · 6 comments · Opened May 7, 2026
Merge on ArrowDtype columns fails with ValueError when using multiple partitions Open

needs attention needs triage

Difficulty 3/5 1-2 days Newbie friendliness 50/100

dask/dask#12374 · 1 comment · Opened May 7, 2026
PCA.transform fails if svd_solver="randomized" Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

dask/dask-ml#1023 · 1 comment · Opened May 1, 2026
Update and improve test environments Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

dask/dask-image#431 · 1 comment · Opened Apr 27, 2026
'cumsum' results differ from 'cumsum' on a pure numpy array Open

array bug needs attention

Difficulty 3/5 1-2 days Newbie friendliness 52/100

dask/dask#12359 · 4 comments · Opened Apr 23, 2026
Understanding why nan_to_num does not accept keyword arguments Open

needs attention needs triage

Difficulty 3/5 1-2 days Newbie friendliness 55/100

dask/dask#12350 · Opened Apr 8, 2026
threshold_local does not preserve data type Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

dask/dask-image#426 · 5 comments · Opened Mar 24, 2026
done_callback raises RuntimeError during interpreter shutdown Open

needs triage

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

dask/distributed#9211 · Opened Mar 18, 2026
cleanup_lingering_clusters atexit fails to stop cluster: RuntimeError in DNS resolution after executor shutdown Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

dask/dask-gateway#930 · Opened Mar 18, 2026
Control idle time on SLURMCluster.adapt() to control when workers are released. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

dask/dask-jobqueue#701 · Opened Mar 17, 2026
Performance report breaks alongside python 3.14 Open

needs info

Difficulty 4/5 3-5 days Newbie friendliness 48/100

dask/dask#12329 · 1 comment · Opened Mar 17, 2026
delayed function applied to an Array duplicates the whole dask graph on creation Open

needs attention needs triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

dask/dask#12318 · 3 comments · Opened Mar 8, 2026
Modernise blog Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

dask/dask-blog#178 · Opened Mar 5, 2026
Poorly managed shutdown of distributed and/or sqlite Open

needs attention needs triage

Difficulty 4/5 3-5 days Newbie friendliness 30/100

dask/dask#12312 · Opened Mar 4, 2026

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