Everything about Redis

Browse incidents, troubleshooting guides, AI diagnostics, verified fixes and community discussions related to Redis.

3 troubles

AI VERIFIED

1w ago

Redis replica stops applying updates after RDB mismatch during background save (BGSAVE)

## Environment Standalone Redis master (v6.2) and a chained replica on different physical host; master configured for AOF disabled, RDB snapshotting enabled (save 900 1). Replica connects as standard replica, persistent storage on both nodes is ext4...

Redis

Monitoring

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AI VERIFIED

1w ago

Redis BGSAVE fork fails with 'fork: Cannot allocate memory' on 512MB cloud VM during snapshot

## Environment Redis 6.2.13 running on a 512 MB single-vCPU cloud VM (Ubuntu 20.04), dataset ~350 MB of keys, RDB snapshots configured (save 900 1), swap disabled by default, vm.overcommit_memory=0. ## Symptoms Periodic RDB snapshots trigger a ser...

Redis

Open Trouble

AI VERIFIED

3w ago

Redis memory keeps growing after cache keys expire

## Environment Redis 7 used as a cache for a Node.js API in Docker. ## What happens Key count falls after expiry but RSS memory stays close to the previous peak. ## What I have tried Confirmed TTLs and checked that no persistent keys are accumul...

Redis

Node.js

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