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Fix Redis "Connection refused", Timeouts and "max number of clients" Errors

Self-Hosting & Infra intermediate 6 min read $0.01 Updated 2026-10-19

Troubleshooting Redis connectivity and latency: ECONNREFUSED, bind and protected-mode, requirepass and ACL errors, TLS, maxclients, connection leaks, slowlog and latency tools, big keys and KEYS, persistence stalls and client timeout settings.

The app cannot connect to Redis or gets random timeouts. Check bind and protected mode, authentication, maxclients, slow commands, big keys, blocking operations and client pool settings.

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