mirror of
https://github.com/frappe/gunicorn.git
synced 2026-01-14 11:09:11 +08:00
118 lines
3.8 KiB
Python
118 lines
3.8 KiB
Python
# -*- coding: utf-8 -
|
|
#
|
|
# This file is part of gunicorn released under the MIT license.
|
|
# See the NOTICE for more information.
|
|
|
|
"Bare-bones implementation of statsD's protocol, client-side"
|
|
|
|
import socket
|
|
from gunicorn.glogging import Logger
|
|
|
|
# Instrumentation constants
|
|
STATSD_DEFAULT_PORT = 8125
|
|
METRIC_VAR = "metric"
|
|
VALUE_VAR = "value"
|
|
MTYPE_VAR = "mtype"
|
|
GAUGE_TYPE = "gauge"
|
|
COUNTER_TYPE = "counter"
|
|
HISTOGRAM_TYPE = "histogram"
|
|
|
|
class Statsd(Logger):
|
|
"""statsD-based instrumentation, that passes as a logger
|
|
"""
|
|
def __init__(self, cfg):
|
|
"""host, port: statsD server
|
|
"""
|
|
Logger.__init__(self, cfg)
|
|
try:
|
|
host, port = cfg.statsd_host
|
|
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
|
self.sock.connect((host, int(port)))
|
|
except Exception:
|
|
self.sock = None
|
|
|
|
# Log errors and warnings
|
|
def critical(self, msg, *args, **kwargs):
|
|
Logger.critical(self, msg, *args, **kwargs)
|
|
self.increment("gunicorn.log.critical", 1)
|
|
|
|
def error(self, msg, *args, **kwargs):
|
|
Logger.error(self, msg, *args, **kwargs)
|
|
self.increment("gunicorn.log.error", 1)
|
|
|
|
def warning(self, msg, *args, **kwargs):
|
|
Logger.warning(self, msg, *args, **kwargs)
|
|
self.increment("gunicorn.log.warning", 1)
|
|
|
|
def exception(self, msg, *args, **kwargs):
|
|
Logger.exception(self, msg, *args, **kwargs)
|
|
self.increment("gunicorn.log.exception", 1)
|
|
|
|
# Special treatement for info, the most common log level
|
|
def info(self, msg, *args, **kwargs):
|
|
"""Log a given statistic if metric, value and type are present
|
|
"""
|
|
Logger.info(self, msg, *args, **kwargs)
|
|
extra = kwargs.get("extra", None)
|
|
if extra is not None:
|
|
metric = extra.get(METRIC_VAR, None)
|
|
value = extra.get(VALUE_VAR, None)
|
|
typ = extra.get(MTYPE_VAR, None)
|
|
if metric and value and typ:
|
|
if typ == GAUGE_TYPE:
|
|
self.gauge(metric, value)
|
|
elif typ == COUNTER_TYPE:
|
|
self.increment(metric, value)
|
|
elif typ == HISTOGRAM_TYPE:
|
|
self.histogram(metric, value)
|
|
else:
|
|
pass
|
|
|
|
# skip the run-of-the-mill logs
|
|
def debug(self, msg, *args, **kwargs):
|
|
Logger.debug(self, msg, *args, **kwargs)
|
|
|
|
def log(self, lvl, msg, *args, **kwargs):
|
|
Logger.log(self, lvl, msg, *args, **kwargs)
|
|
|
|
# access logging
|
|
def access(self, resp, req, environ, request_time):
|
|
"""Measure request duration
|
|
request_time is a datetime.timedelta
|
|
"""
|
|
Logger.access(self, resp, req, environ, request_time)
|
|
duration_in_s = request_time.seconds + float(request_time.microseconds)/10**6
|
|
self.histogram("gunicorn.request.duration", duration_in_s)
|
|
self.increment("gunicorn.requests", 1)
|
|
self.increment("gunicorn.request.status.%d" % int(resp.status.split()[0]), 1)
|
|
|
|
# statsD methods
|
|
# you can use those directly if you want
|
|
def gauge(self, name, value):
|
|
try:
|
|
if self.sock:
|
|
self.sock.send("{0}:{1}|g".format(name, value))
|
|
except Exception:
|
|
pass
|
|
|
|
def increment(self, name, value, sampling_rate=1.0):
|
|
try:
|
|
if self.sock:
|
|
self.sock.send("{0}:{1}|c|@{2}".format(name, value, sampling_rate))
|
|
except Exception:
|
|
pass
|
|
|
|
def decrement(self, name, value, sampling_rate=1.0):
|
|
try:
|
|
if self.sock:
|
|
self.sock.send("{0}:-{1}|c|@{2}".format(name, value, sampling_rate))
|
|
except Exception:
|
|
pass
|
|
|
|
def histogram(self, name, value):
|
|
try:
|
|
if self.sock:
|
|
self.sock.send("{0}:{1}|ms".format(name, value))
|
|
except Exception:
|
|
pass
|