Logging
accesslog
--access-logfile FILE
None
The Access log file to write to.
'-'
means log to stdout.
disable_redirect_access_to_syslog
--disable-redirect-access-to-syslog
False
Disable redirect access logs to syslog.
New in version 19.8.
access_log_format
--access-logformat STRING
%(h)s %(l)s %(u)s %(t)s "%(r)s" %(s)s %(b)s "%(f)s" "%(a)s"
The access log format.
Identifier | Description |
---|---|
h | remote address |
l | ‘-‘ |
u | user name |
t | date of the request |
r | status line (e.g. GET / HTTP/1.1 ) |
m | request method |
U | URL path without query string |
q | query string |
H | protocol |
s | status |
B | response length |
b | response length or ‘-‘ (CLF format) |
f | referer |
a | user agent |
T | request time in seconds |
D | request time in microseconds |
L | request time in decimal seconds |
p | process ID |
{Header}i | request header |
{Header}o | response header |
{Variable}e | environment variable |
errorlog
--error-logfile FILE, --log-file FILE
-
The Error log file to write to.
Using '-'
for FILE makes gunicorn log to stderr.
Changed in version 19.2: Log to stderr by default.
loglevel
--log-level LEVEL
info
The granularity of Error log outputs.
Valid level names are:
- debug
- info
- warning
- error
- critical
capture_output
--capture-output
False
Redirect stdout/stderr to specified file in errorlog.
New in version 19.6.
logger_class
--logger-class STRING
gunicorn.glogging.Logger
The logger you want to use to log events in Gunicorn.
The default class (gunicorn.glogging.Logger
) handle most of normal usages in logging. It provides error and access logging.
You can provide your own logger by giving Gunicorn a Python path to a subclass like gunicorn.glogging.Logger
.
logconfig
--log-config FILE
None
The log config file to use. Gunicorn uses the standard Python logging module’s Configuration file format.
logconfig_dict
--log-config-dict
{}
The log config dictionary to use, using the standard Python logging module’s dictionary configuration format. This option takes precedence over the logconfig option, which uses the older file configuration format.
Format: https://docs.python.org/3/library/logging.config.html#logging.config.dictConfig
New in version 19.8.
syslog_addr
--log-syslog-to SYSLOG_ADDR
udp://localhost:514
Address to send syslog messages.
Address is a string of the form:
unix://PATH#TYPE
: for unix domain socket.TYPE
can bestream
for the stream driver ordgram
for the dgram driver.stream
is the default.udp://HOST:PORT
: for UDP socketstcp://HOST:PORT
: for TCP sockets
syslog
--log-syslog
False
Send Gunicorn logs to syslog.
Changed in version 19.8: You can now disable sending access logs by using the disable_redirect_access_to_syslog setting.
syslog_prefix
--log-syslog-prefix SYSLOG_PREFIX
None
Makes Gunicorn use the parameter as program-name in the syslog entries.
All entries will be prefixed by gunicorn.<prefix>
. By default the program name is the name of the process.
syslog_facility
--log-syslog-facility SYSLOG_FACILITY
user
Syslog facility name
enable_stdio_inheritance
-R, --enable-stdio-inheritance
False
Enable stdio inheritance.
Enable inheritance for stdio file descriptors in daemon mode.
Note: To disable the Python stdout buffering, you can to set the user environment variable PYTHONUNBUFFERED
.
statsd_host
--statsd-host STATSD_ADDR
None
host:port
of the statsd server to log to.
New in version 19.1.
statsd_prefix
--statsd-prefix STATSD_PREFIX
(empty string)
Prefix to use when emitting statsd metrics (a trailing .
is added, if not provided).
New in version 19.2.