moby / moby/swarmkit

Docker Swarm Scheduling Performance with node.id Constraint

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Dominant language
Go
Stars
3.7k
Forks
676
Avg merge
4d 9h
Merged PRs (30d)
6

Description

If I created a service with docker swarm specifying e.g. node.id==node42 as a constraint what would happen from the point of view of the scheduling process? The process would be performed entirely taking into account the constraint or, having specified a constraint that forces the choice to a single node, docker only takes care of verifying if the choice is admissible "skipping" then the whole scheduling process?

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Research direction

No files, tests, or entry points are named. First identify the scheduler code that evaluates node.id constraints and determine how scheduling proceeds when only one node is admissible. Done means providing a confirmed explanation of the scheduling process and its performance implications.

Written by the indexing model from the issue text.

Assessment

Tech stack
docker, go
Domain
distributed-systems
Issue type
Documentation
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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