Answer
Use worker threads or child processes with priority queues. Employ cooperative multitasking using event loop checkpoints or manual yielding.
Quick Answer
A custom scheduler inside Node.js: maintain a priority queue of tasks, use setImmediate() to yield between batches, implement time-slicing (run each task for max N ms, then yield), track task deadlines and deprioritize overdue ones. This is useful for multi-tenant systems where you need fair task scheduling across tenants without blocking one tenant's work.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ