Retrieve Shell Logs

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View MongoDB Shell Logs

View MongoDB Shell Command History
Log Retention

MongoDB Shell uses Newline delimited JSON to store session logs. Starting in mongosh version 1.0.5, the log MongoDB Shell format is updated to match the MongoDB server log format. For details, see Log Messages.

You can view or tail the logs for a MongoDB Shell session based on its log ID.

Note

The MongoDB Shell redacts credentials from the command history and the logs.

View MongoDB Shell Logs

Find your Log ID.

Example

MongoDB Shell displays the log ID each time you open the shell.

$ mongosh
Current Mongosh Log ID: c2961dbd6b73b052671d9df0
Connecting to: mongodb://127.0.0.1:27017
Using MongoDB: 4.2.8
Using Mongosh: 2.3.2

View the log for the session.

MongoDB Shell saves the log for each session to your user's .mongodb/mongosh directory:

~/.mongodb/mongosh/<LogID>_log

Run the following command to view the log for a session:

cat ~/.mongodb/mongosh/<LogID>_log

Run the following command to tail the log for a session:

tail -f ~/.mongodb/mongosh/<LogID>_log

MongoDB Shell saves the log for each session to your user's C:\Users\<username>\AppData\Local\ directory:

%UserProfile%/AppData/Local/mongodb/mongosh/<LogID>_log

Run the following PowerShell command to view the log for a session:

Get-Content %UserProfile%/AppData/Local/mongodb/mongosh/<LogID>_log

Run the following PowerShell command to tail the log for a session:

Get-Content %UserProfile%/AppData/Local/mongodb/mongosh/<LogID>_log

View MongoDB Shell Command History

MongoDB Shell saves a history of all commands you've run across sessions. When a new command is issued, it is added to the beginning of the history file.

Open the following file in a text editor to view the MongoDB Shell command history:

Operating System	Path to History File
macOS and Linux	`~/.mongodb/mongosh/mongosh_repl_history`
Windows	`%UserProfile%/.mongodb/mongosh/mongosh_repl_history`

Log Retention

mongosh retains up to 100 log files for 30 days. mongosh automatically deletes log files older than 30 days.

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