MongoDB logLevel is not default

Description

This advisor warns if the verbosity level of MongoDB logs is higher than the default value.

The verbosity level is controlled by the logLevel parameter. Its value is an integer between 0 and 5, where 0 is the default log level (Informational) and 5 is the most verbose level.

Increasing the verbosity of log messages is useful for debugging purposes for a short period of time.

For more information, see db.setLogLevel() in the MongoDB documentation.

Rule

MONGODB_GETPARAMETER

db.adminCommand( { getParameter: 1, "logLevel": 1 } )

Resolution

Turn on or adjust the verbosity of your logs:

From the mongo/mongosh shellIn the configuration file

• Using the db.setLogLevel() method:

  db.setLogLevel(1);  
  

• using the adminCommand syntax:

db.adminCommand( { setParameter: 1, logLevel: 2 } )

Set the following parameter to default:

      setParameter:
       logLevel: 0

Restart the mongod nodes for the changes to take effect. Use the rolling restart method for your cluster or replica set.

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