IT Log

Record various IT issues and difficulties.

Tag: Redis

  • “Manipulating Redis in Java and with Spring”

    Java Environment: 1. Create a Maven Project 2. Import Dependencies redis.clients jedis 4.3.2 Here, Jedis is used (providing APIs highly consistent with Redis commands) 3. Configure Port Forwarding Prevent Redis port from being attacked by hackers; Map the Redis port of the cloud server to the local host. Configuring in xshell: At this point, accessing…

  • Use Redis’s `KEYS` with caution; please use `SCAN` instead!

    To address the issue of avoiding KEYS in Redis and instead using SCAN, here’s a structured explanation: Why Avoid KEYS? Performance Impact: The KEYS command retrieves all keys matching a pattern in one go, which can be time-consuming (O(N) complexity) on large datasets, potentially blocking the server and affecting other operations. Resource Consumption: Collecting all…