How to view redis logs

Redis log files are usually located in /var/log/redis/redis-server.log or /\redis.log. You can view the logs using command line tools such as tail -f redis-server.log. The default log level is "verbose", which can be changed by modifying the redis.conf configuration file. Redis also supports log separation, allowing logging to multiple files.

How to view Redis logs

Redis's logging feature helps users quickly identify problems and resolve errors. Here are the steps to view Redis logs:

1. Find Redis log files

Typically, Redis's log files are located at the following locations:

• Linux/macOS: /var/log/redis/redis-server.log
• Windows: /\redis.log

2. Use the command line tool to view the log

Open a command line terminal (such as Terminal or PowerShell) and navigate to the directory where the log file resides. Then use the following command to view the log:

 <code>tail -f redis-server.log</code>

3. Configure log level

By default, Redis logs at the "verbose" level. You can change the log level by modifying the redis.conf configuration file. Here are some commonly used log levels:

• debug: record all debug information
• verbose: Record all errors, warnings and notification information
• notice: record all non-debug information
• Warning: Record all warnings and error messages
• error: Only error messages are recorded

4. Separation log

Redis also allows you to log logs to multiple files or destinations. For example, you can log the error log to one file and the slow query log to another file.

To enable log detachment in redis.conf, add the following line:

 <code>slowlog-log-slower-than 10000 slowlog-max-len 128</code>

This will record all slow queries that have been executed for more than 10 milliseconds. The slow query log will be saved in the /var/log/redis/slow.log file.

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