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dask unstable; multiple race condition errors: P2PConsistencyError, RuntimeError, FutureCancelledError ...

bugSomething is brokenSomething is broken

needs infoNeeds further information from the userNeeds further information from the user

needs reproducer

Status: Open.

#9163 In dask/distributed;

· lbesnard opened on Dec 10, 2025

LocalCluster fails to spawn requested number of workers (capped at 5 workers on Windows)

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#9134 In dask/distributed;

· jianlinshi opened on Nov 3, 2025

Semantic mismatch in <code>SpecCluster.requested</code>

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#9103 In dask/distributed;

· alisterburt opened on Aug 26, 2025

<code>SpecCluster</code> fails to remove grouped workers when they die, breaking adaptive scaling

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#9102 In dask/distributed;

· alisterburt opened on Aug 26, 2025

Dask may stop the instances on the middle of calculation without objective reason

adaptiveAll things relating to adaptive scalingAll things relating to adaptive scaling

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#9024 In dask/distributed;

· dbalabka opened on Mar 14, 2025

Get more informative timeout variable names or clarify them in the comments

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#8885 In dask/distributed;

· falfaroalmagro opened on Oct 7, 2024

Provide means to monitor which task / worker is holding the lock or semaphores

enhancementImprove existing functionality or make things work betterImprove existing functionality or make things work better

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#8772 In dask/distributed;

· carusyte opened on Jul 16, 2024

RuntimeError: Barrier task with key 'shuffle-barrier-379659673650beace1aa63b2956e7b58' does not exist. This may be caused by task fusion during graph generation. Please let us know that you ran into this by leaving a comment at distributed#7816.

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#8720 In dask/distributed;

· wangjianqiao111 opened on Jun 24, 2024

Worker status page: IndexError: deque index out of range

bugSomething is brokenSomething is broken

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#8435 In dask/distributed;

· tekumara opened on Dec 31, 2023

Data loss during p2p shuffle

bugSomething is brokenSomething is broken

needs infoNeeds further information from the userNeeds further information from the user

shuffle

Status: Open.

#8426 In dask/distributed;

· nickto opened on Dec 19, 2023

got an unexpected keyword argument 'keys' on Summit with distributed 2023.6.1 - 2023.12.0

bugSomething is brokenSomething is broken

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#8403 In dask/distributed;

· markcoletti opened on Dec 13, 2023

Debugpy on AWS Fargate

needs infoNeeds further information from the userNeeds further information from the user

Status: Open.

#8385 In dask/distributed;

· Vesyrak opened on Dec 4, 2023