5d ago · 24 min read · 📖 The 500-Second Problem: What Cooperative Multitasking Actually Fixes Suppose your monitoring pipeline checks the health endpoint of 1,000 internal microservices. Each HTTP call takes about 500 milliseconds — network round-trip, DNS, TLS handshake,...
Join discussionApr 10 · 6 min read · Some things should only happen after you can't do them yourself. Posthumous is a self-hosted dead man's switch. You check in periodically (via phone, browser, CLI, or API call) and if you stop, it progresses through escalating stages before triggerin...
Join discussionApr 3 · 6 min read · Async Web Scraping in Python: httpx + asyncio for 10x Faster Data Collection Synchronous scraping makes requests one at a time. While you wait for one response, you're doing nothing. Async scraping makes 10-50 requests simultaneously — same time, 10-...
Join discussionMar 14 · 4 min read · Unlock the power of Python asyncio to write efficient, non-blocking code. This asyncio tutorial covers async programming Python developers need to get started today. Asynchronous programming has become a critical skill for Python developers aiming t...
Kklement commentedFeb 8 · 13 min read · This is the third post in the series Coroutine, IO bound and Asyncio for AI. Click the image for the series index Introduction In this post, I will briefly introduce how to utilize coroutines for LLMs. Using asyncio for LLM inference is straightfor...
Join discussionJan 31 · 14 min read · This is the second post in the series Coroutine, IO bound and Asyncio for AI. Click the image for the series index Introduction I explained coroutines and asyncio in the previous post: https://sjun.hashnode.dev/1-what-are-coroutine-asyncio-io-bound...
Join discussionJan 27 · 4 min read · Introduction Async bugs in FastAPI rarely fail loudly. They pass tests.They work locally.And then they quietly break under load. A large number of issues developers blame on FastAPI or SQLAlchemy leaked connections, hanging requests, random MissingGr...
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Jan 21 · 9 min read · Introduction In many cases, we have to run several jobs concurrently. Most developers are likely familiar with multi-threading or multi-processing, both of which Python supports through ThreadPoolExecutor and ProcessPoolExecutor. However, there is an...
Join discussionJan 21 · 3 min read · If you recently upgraded to SQLAlchemy 2.0 and suddenly saw AttributeError: 'AsyncSession' object has no attribute 'query', nothing is actually broken. This error appears because SQLAlchemy 2.0 removed legacy query patterns entirely and async session...
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