Concurrent Proxy Connection Limits
Cap concurrent connections per proxy IP — avoid burning slots, provider bans, and file descriptor exhaustion.
Cap concurrent connections per proxy IP — avoid burning slots, provider bans, and file descriptor exhaustion.
Why cap concurrency
Too many parallel connections per IP triggers provider throttles and target blocks.
Implementation
- Semaphore per proxy URL
- Global worker cap
- Provider-documented limits
Related: Scrapy middleware.
Monitoring
Track 429 and reset rates per slot.
Related: pool metrics.
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Related guides
Avoiding IP Bans with Rotation and Backoff
Practical tactics to reduce IP bans: rotation cooldown, exponential backoff, fingerprint awareness, and ops playbooks.
Proxy Pool Health Checks: What Good Looks Like
Design health probes, schedule maintenance passes, quarantine bad endpoints, and track pool quality metrics.