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Consistent Hashing with Virtual Buckets in Python

This code maps many virtual buckets onto a few physical buckets using a consistent hashing ring, ensuring balanced distribution with minimal remapping when physical buckets change.

consistent-hashing virtual-buckets sharding

Python

import random

class VirtualBuckets:
    """Maps many virtual buckets onto few physical buckets using consistent hashing."""
    
    def __init__(self, physical_buckets, virtual_factor=100):
        self.physical = list(physical_buckets)
        self.virtual_factor = virtual_factor
        self.ring = []
        self…

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