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Recommend PyMongo AsyncMongoClient over deprecated Motor #25

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khelanmodi merged 1 commit into from
May 26, 2026
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Recommend PyMongo AsyncMongoClient over deprecated Motor #25

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13 changes: 10 additions & 3 deletions skills/connection/SKILL.md
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Expand Up @@ -37,9 +37,16 @@ Borrow from pool → Execute operation → Return to pool → Prune idle connect
exceeding `maxIdleTimeMS`.

**Synchronous vs Asynchronous Drivers:**
- **Synchronous** (PyMongo, Java sync): Thread blocks; pool size often matches
thread pool size
- **Asynchronous** (Node.js, Motor): Non-blocking I/O; smaller pools suffice
- **Synchronous** (PyMongo `MongoClient`, Java sync): Thread blocks; pool size
often matches thread pool size
- **Asynchronous** (Node.js, PyMongo `AsyncMongoClient`): Non-blocking I/O;
smaller pools suffice

> **Python async note:** Use PyMongo's native `AsyncMongoClient` (PyMongo
> 4.9+), **not** Motor. MongoDB announced Motor's deprecation in May 2024 in
> favor of PyMongo's built-in async API; Motor receives only critical fixes
> through May 2026 and is end-of-life after that. New Python async code on
> Azure DocumentDB should import `from pymongo import AsyncMongoClient`.

**Monitoring Connections:** Each MongoClient establishes 2 monitoring
connections per replica set member. Formula:
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