docs/hosting/configuration/environment-variables/logs.md

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title: Logs environment variables
description: Environment variables to configure logging and diagnostic data.
contentType: reference
tags:
  - environment variables
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Logs environment variables

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This page lists environment variables to set up logging for debugging. Refer to Logging in n8n for details.

n8n logs

Variable	Type	Default	Description
N8N_LOG_LEVEL	Enum string: info, warn, error, debug	info	Log output level. Refer to Log levels for details.
N8N_LOG_OUTPUT	Enum string: console, file	console	Where to output logs. Provide multiple values as a comma-separated list.
N8N_LOG_FORMAT	Enum string: text, json	text	The log format to use. text prints human readable messages. json prints one JSON object per line containing the message, level, timestamp, and all metadata. This is useful for production monitoring as well as debugging.
N8N_LOG_FILE_COUNT_MAX	Number	100	Max number of log files to keep.
N8N_LOG_FILE_SIZE_MAX	Number	16	Max size of each log file in MB.
N8N_LOG_FILE_LOCATION	String	<n8n-directory-path>/logs/n8n.log	Log file location. Requires N8N_LOG_OUTPUT set to file.
DB_LOGGING_ENABLED	Boolean	false	Whether to enable database-specific logging.
DB_LOGGING_OPTIONS	Enum string: query, error, schema, warn, info, log	error	Database log output level. To enable all logging, specify all. Refer to TypeORM logging options{:target=_blank .external-link}
DB_LOGGING_MAX_EXECUTION_TIME	Number	1000	Maximum execution time (in milliseconds) before n8n logs a warning. Set to 0 to disable long running query warning.
CODE_ENABLE_STDOUT	Boolean	false	Set to true to send Code node logs to process's stdout for debugging, monitoring, or logging purposes.
NO_COLOR	any	undefined	Set to any value to output logs without ANSI colors. For more information, see the no-color.org website{:target=_blank .external-link}.

Log streaming

Refer to Log streaming for more information on this feature.

Variable	Type	Default	Description
N8N_EVENTBUS_CHECKUNSENTINTERVAL	Number	0	How often (in milliseconds) to check for unsent event messages. Can in rare cases send message twice. Set to 0 to disable it.
N8N_EVENTBUS_LOGWRITER_SYNCFILEACCESS	Boolean	false	Whether all file access happens synchronously within the thread (true) or not (false).
N8N_EVENTBUS_LOGWRITER_KEEPLOGCOUNT	Number	3	Number of event log files to keep.
N8N_EVENTBUS_LOGWRITER_MAXFILESIZEINKB	Number	10240	Maximum size (in kilo-bytes) of an event log file before a new one starts.
N8N_EVENTBUS_LOGWRITER_LOGBASENAME	String	n8nEventLog	Basename of the event log file.