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System design patterns

Sharding, load balancing, CAP tradeoffs, and scaling patterns — interview and production ready.

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Implement Bulkhead Thread Pool Isolation in Python

Create isolated thread pools with a bulkhead pattern to protect different services from cascading failures.

bulkhead threadpool concurrency
Python 
import threading
import time
import random
from concurrent.futures import ThreadPoolExecutor


class Bulkhead:
    """Simple bulkhead isolation: separate thread pools for different tasks."""

    def __init__(self, max_workers):
        self.executor = ThreadPoolExecutor(max_workers=max_workers)
        self.active = …
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