How to view the running status of redis

View Redis running status by using the Redis INFO command to obtain server statistics. Use monitoring tools such as RedisInsight, Prometheus, and Grafana to monitor Redis in real time. Check process information (ps aux | grep redis) to get CPU and memory usage. View the log file (tail /var/log/redis/redis.log) to find errors and warning messages. Use dedicated commands such as SENTINEL slaves mymaster to get specific instance information.

How to view Redis running status

Redis is a popular open source key-value database that is often used for caching and messaging. Monitoring Redis's operating status is critical to ensure its reliability and performance. Here is how to view the status of Redis:

1. Use the Redis command

The most direct way is to use the Redis command <code>INFO</code> . This command returns detailed statistics about the Redis server, including:

• Server version
• Number of connected clients
• Memory usage
• Number of commands processed
• Copy the information (if enabled)

To use this command, use a Redis client (for example, redis-cli ) to connect to the Redis server and run the following command:

 <code>INFO</code>

2. Use monitoring tools

Many monitoring tools support Redis, such as:

• RedisInsight : It is a tool designed for monitoring Redis, providing real-time dashboards, alerts and performance analysis.
• Prometheus : A popular open source monitoring system that monitors Redis and stores metrics in a time series database.
• Grafana : A data visualization tool that can be used to create a dashboard for Redis running status.

3. Check process information

On Unix systems, you can use the following command to view the operation information of the Redis process:

 <code>ps aux | grep redis</code>

This returns a list of process ID, CPU usage, and memory usage.

4. Log files

Redis logs error and warning messages to a log file, which can be viewed by the following command:

 <code>tail /var/log/redis/redis.log</code>

(The location of the log file may vary by system.)

5. Use special commands

Some Redis instances may be configured with dedicated commands to provide run status information. For example, the following command is used to view the running status of Sentinel:

 <code>SENTINEL slaves mymaster</code>

By regularly monitoring the operating status of Redis, you can identify problems early and take measures to resolve them to ensure the stable operation of the Redis server.

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