You can use nova.conf configuration
options to indicate where Compute will log events, the level of
logging, and customize log formats.
To customize log formats for OpenStack Compute, use these configuration option settings.
| Configuration option=Default value | (Type) Description |
| debug=False | (BoolOpt)Print debugging output (set logging level to DEBUG instead of default WARNING level). |
| default_log_levels=['amqplib=WARN', 'sqlalchemy=WARN', 'boto=WARN', 'suds=INFO', 'keystone=INFO', 'eventlet.wsgi.server=WARN'] | (ListOpt)list of logger=LEVEL pairs |
| fatal_deprecations=False | (BoolOpt)make deprecations fatal |
| fatal_exception_format_errors=False | (BoolOpt)make exception message format errors fatal |
| instance_format=[instance: %(uuid)s] | (StrOpt)If an instance is passed with the log message, format it like this |
| instance_uuid_format=[instance: %(uuid)s] | (StrOpt)If an instance UUID is passed with the log message, format it like this |
| log_config=None | (StrOpt)If this option is specified, the logging configuration file specified is used and overrides any other logging options specified. Please see the Python logging module documentation for details on logging configuration files. |
| log_date_format=%Y-%m-%d %H:%M:%S | (StrOpt)Format string for %%(asctime)s in log records. Default: %(default)s |
| log_dir=None | (StrOpt)(Optional) The base directory used for relative --log-file paths |
| log_file=None | (StrOpt)(Optional) Name of log file to output to. If no default is set, logging will go to stdout. |
| log_format=%(asctime)s %(levelname)8s [%(name)s] %(message)s | (StrOpt)A logging.Formatter log message format string which may use any of the available logging.LogRecord attributes. Default: %(default)s |
| logfile_mode=0644 | (StrOpt)Default file mode used when creating log files |
| logging_context_format_string=%(asctime)s.%(msecs)03d %(levelname)s %(name)s [%(request_id)s %(user)s %(tenant)s] %(instance)s%(message)s | (StrOpt)format string to use for log messages with context |
| logging_debug_format_suffix=%(funcName)s %(pathname)s:%(lineno)d | (StrOpt)data to append to log format when level is DEBUG |
| logging_default_format_string=%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s | (StrOpt)format string to use for log messages without context |
| logging_exception_prefix=%(asctime)s.%(msecs)03d %(process)d TRACE %(name)s %(instance)s | (StrOpt)prefix each line of exception output with this format |
| publish_errors=False | (BoolOpt)publish error events |
| syslog_log_facility=LOG_USER | (StrOpt)syslog facility to receive log lines |
| use_stderr=True | (BoolOpt)Log output to standard error |
| use_syslog=False | (BoolOpt)Use syslog for logging. |
| verbose=False | (BoolOpt)Print more verbose output (set logging level to INFO instead of default WARNING level). |
