12 articles
RSSHow to fix Redis Streams errors — XADD/XREAD basics, consumer group XGROUP CREATE, XACK for ack, XPENDING for stuck messages, MAXLEN ~ for trimming, XAUTOCLAIM for redelivery, and Cluster hash slot constraints.
How to fix Valkey errors — client connection refused, RESP protocol compatibility, ACL user setup, cluster slot reshard, persistence config (RDB/AOF), TLS, Sentinel mode, and migrating from Redis.
How to fix Python arq errors — worker can't find tasks, WorkerSettings class structure, cron syntax differences, msgpack serialization errors, job_id deduplication, result expiration, and Redis connection pooling.
How to fix Dramatiq errors — ActorNotFound on worker, broker connection refused, Redis vs RabbitMQ trade-offs, message retries not triggering, async actors, and django-dramatiq AppConfig setup.
How to fix BullMQ issues — queue and worker setup, Redis connection, job scheduling, retry strategies, concurrency, rate limiting, event listeners, and dashboard monitoring.
How to fix Redis Cluster errors — MOVED redirects, CROSSSLOT multi-key operations, cluster-aware client setup, hash tags for key grouping, and failover handling.
How to fix Laravel queue jobs not running — queue worker not started, wrong connection config, failed jobs, job timeouts, horizon setup, and database vs Redis queue differences.
How to fix Redis Pub/Sub issues — subscriber not receiving messages, channel name mismatches, connection handling, pattern subscriptions, and scaling with multiple processes.
How to fix Redis keys that never expire — why EXPIRE commands are silently overwritten, how SET options replace TTL, how to inspect key TTL, and how to prevent accidental TTL removal in your application.
How to fix Redis OOM command not allowed when used memory exceeds maxmemory caused by memory limits, missing eviction policies, large keys, and memory fragmentation.
How to fix the Redis ECONNREFUSED error when your application cannot connect to the Redis server on localhost:6379 or a remote host. Covers Redis not running, wrong host/port, Docker networking, firewall, AUTH required, maxclients, and TLS configuration.
How to fix Redis errors: WRONGTYPE Operation against a key holding the wrong kind of value, MISCONF Redis is configured to save RDB snapshots, OOM command not allowed, READONLY You can't write against a read only replica, and other common Redis errors. Covers key type mismatches, disk issues, memory limits, eviction policies, connection problems, and serialization.