How to handle high number of Redis connections?

When the number of Redis connections is too high, there are several methods that can be used to handle the issue:

1. Optimize the application: Review the code of the application to ensure that a connection pool is used when connecting to Redis, to avoid creating new connections for every request. Also, check for any unnecessary connection operations, such as frequent connection and disconnection.
2. To increase the maximum number of connections for Redis, you can adjust the configuration file or use commands. Adjust the maximum number of connections accordingly based on the actual situation, but avoid unnecessarily increasing it to prevent waste of resources.
3. Optimize Redis configuration parameters: Adjust Redis configuration parameters such as timeout and maximum number of clients according to actual needs. Changes can be made either by modifying the Redis configuration file or using commands.
4. Check network connection: If the number of Redis connections is too high, it may be due to issues with the network connection. You can check the stability of the network connection, as well as whether the network bandwidth meets the requirements. If the network connection is unstable or the bandwidth is insufficient, appropriate measures can be taken to address the issue.
5. Analyze and optimize the use of Redis: Use monitoring tools or log analysis to understand how Redis is being utilized, identify the specific reasons for high connection issues. Consider optimizing Redis data structures, implementing cache strategies, and enhancing query performance.
6. Utilizing a Redis cluster: If a single Redis instance is unable to meet the connection requirements, consider using a Redis cluster to distribute the connection load. A Redis cluster can distribute data across multiple nodes and provide automatic failover and load balancing functionalities.

In conclusion, methods to address high Redis connection count include optimizing the application, increasing the maximum number of connections, optimizing configuration parameters, checking network connections, analyzing and optimizing Redis usage, and using a Redis cluster. Choose the appropriate method or use a combination based on specific circumstances.