How can I view logs in MongoDB?

There are several ways to view MongoDB logs.

1. Using MongoDB command line tools: You can connect to the MongoDB server and execute log operation commands using MongoDB command line tools (such as mongo shell). For example, you can use the command db.getLogComponents() to view log components and db.adminCommand({ getLog : “*” }) to retrieve all logs.
2. Utilizing MongoDB management tools like MongoDB Compass and Robo 3T allows you to connect to MongoDB servers and access a graphical interface to view and manage logs, offering a more intuitive and user-friendly way to analyze and monitor logs.
3. Accessing log files directly: MongoDB writes logs to files that can be directly accessed to view the logs. By default, MongoDB log files are located in the “log” subdirectory under the data directory (such as /var/log/mongodb/mongod.log). You can use a text editor or command line tools (such as cat or tail) to view the contents of the log files.

Regardless of the method used, one can view the MongoDB logs for detailed information about the database’s performance and operations.