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Metrics sent on request and arbiter

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This commit is contained in:
Alexis Le-Quoc 2014-05-07 19:11:55 -04:00
parent 0b5cc1e293
commit 35c7147419
2 changed files with 30 additions and 9 deletions
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0
gunicorn/instrument/__init__.py Normal file
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41
gunicorn/instrument/statsd.py
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@ -14,6 +14,9 @@ METRIC_VAR = "metric"
VALUE_VAR = "value"
MTYPE_VAR = "mtype"
SAMPLING_VAR = "sampling"
GAUGE_TYPE = "gauge"
COUNTER_TYPE = "counter"
HISTOGRAM_TYPE = "histogram"
class Statsd(Logger):
"""statsD-based instrumentation, that passes as a logger
@ -22,6 +25,7 @@ class Statsd(Logger):
"""host, port: statsD server
"""
Logger.__init__(self, cfg)
self.trace = cfg.debug
try:
host, port = cfg.statsd_to
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
@ -49,59 +53,76 @@ class Statsd(Logger):
def info(self, msg, *args, **kwargs):
"""Log a given statistic if metric, value, sampling are present
"""
Logger.info(self, msg, *args, **kwargs)
metric = kwargs.get(METRIC_VAR, None)
value = kwargs.get(VALUE_VAR, None)
typ = kwargs.get(MTYPE_VAR, None)
if metric and value and typ:
if typ == "gauge":
self.gauge(metric, value)
elif typ == "counter":
sampling = kwargs.get(SAMPLING_VAR, 1.0)
if metric and value and typ:
self._sanitize(kwargs)
if typ == GAUGE_TYPE:
self.gauge(metric, value)
elif typ == COUNTER_TYPE:
self.increment(metric, value, sampling)
elif typ == HISTOGRAM_TYPE:
self.histogram(metric, value, sampling)
else:
pass
if self.trace:
Logger.debug(self, "statsd {0},{1},{2},{3}".format(metric, value, typ, sampling))
Logger.info(self, msg, *args, **kwargs)
# skip the run-of-the-mill logs
def debug(self, msg, *args, **kwargs):
self._sanitize(kwargs)
Logger.debug(self, msg, *args, **kwargs)
def log(self, lvl, msg, *args, **kwargs):
self._sanitize(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)
self.histogram("gunicorn.request.duration", 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)
def _sanitize(self, kwargs):
"""Drop stasd keywords from the logger"""
for k in (METRIC_VAR, VALUE_VAR, MTYPE_VAR, SAMPLING_VAR):
try:
kwargs.pop(k)
except KeyError:
pass
# statsD methods
def gauge(self, name, value):
try:
if self.sock:
self.sock.send("%s:%s|g\n" % (name, value))
self.sock.send("{0}:{1}|g\n".format(name, value))
except Exception:
pass
def increment(self, name, value, sampling_rate=1.0):
try:
if self.sock:
self.sock.send("%s:%s|c@%s\n" % (name, value, sampling_rate))
self.sock.send("{0}:{1}|c|@{2}\n".format(name, value, sampling_rate))
except Exception:
pass
def decrement(self, name, value, sampling_rate=1.0):
try:
if self.sock:
self.sock.send("%s:-%s|c@%s\n" % (name, value, sampling_rate))
self.sock.send("{0}:-{1}|c|@{2}\n".format(name, value, sampling_rate))
except Exception:
pass
def histogram(self, name, value, sampling_rate=1.0):
try:
if self.sock:
self.sock.send("%s:%s|h@%s\n" % (name, value, sampling_rate))
self.sock.send("{0}:{1}|h\n".format(name, value, sampling_rate))
except Exception:
pass