meters - Yet another metrics library
Tracks server state and statistics, allowing you to see what your server is doing. It can also send metrics to Graphite for graphing or to a file for crash forensics. It has flexible scalability.
Installation
From PyPI:
pip install meters
Complete example of usage
import math
import time
import logging
import meters
import meters.scales.shared
meters.configure({
"placeholders": {
"env": "os.environ",
"uname": "meters.shortcuts.get_node",
"app": "meters.shortcuts.get_app",
},
"common": {
"prefix": "servers.{uname}.{env[USER]}.{app}",
},
"handlers": {
"graphite-server-a": {
"class": "meters.handlers.graphite.GraphiteHandler",
"url": "tcp://graphite-a.example.com:2025",
"timeout": 1,
"period": 1,
},
"graphite-server-b": {
"class": "meters.handlers.graphite.GraphiteHandler",
"url": "udp://graphite-b.example.com:2025",
"timeout": 1,
"period": 1,
},
"log": "meters.handlers.log.LoggingHandler",
},
"meters": {
"proc.la": "meters.scales.procfs.LoadAverage",
"proc.stat": "meters.scales.procfs.Stat",
"proc.self": "meters.scales.procfs.SelfStat",
"py_threads": "meters.scales.python.Threads",
"py_objects": "meters.scales.python.Objects",
"py_rusage" : {
"class": "meters.scales.python.Resources",
"who": "RUSAGE_CHILDREN",
},
"time.now": time.time,
},
})
# Catch all messages
handler = logging.StreamHandler()
handler.setLevel(logging.DEBUG)
logging.getLogger().addHandler(handler)
logging.getLogger().setLevel(logging.DEBUG)
foo = meters.add_meter("foo", meters.scales.shared.Value(float))
meters.start()
count = 0
while True:
foo.set(math.sin(count))
time.sleep(1)
count += 1
The result will be the following metrics:
servers.reki.mdevaev.foo=0.0
servers.reki.mdevaev.proc.la.la1=0.87
servers.reki.mdevaev.proc.la.la15=0.71
servers.reki.mdevaev.proc.la.la5=0.81
servers.reki.mdevaev.proc.self.cstime=0.0
servers.reki.mdevaev.proc.self.cutime=0.0
servers.reki.mdevaev.proc.self.rss=10048.0
servers.reki.mdevaev.proc.self.stime=0.01
servers.reki.mdevaev.proc.self.utime=0.11
servers.reki.mdevaev.proc.self.vsize=2091663.36
servers.reki.mdevaev.proc.stat.cpu.guest=0
servers.reki.mdevaev.proc.stat.cpu.guest_nice=0
servers.reki.mdevaev.proc.stat.cpu.idle=27298939
servers.reki.mdevaev.proc.stat.cpu.iowait=176185
servers.reki.mdevaev.proc.stat.cpu.irq=61
servers.reki.mdevaev.proc.stat.cpu.nice=1386
servers.reki.mdevaev.proc.stat.cpu.softirq=7285
servers.reki.mdevaev.proc.stat.cpu.steal=0
servers.reki.mdevaev.proc.stat.cpu.system=3463200
servers.reki.mdevaev.proc.stat.cpu.user=7594520
servers.reki.mdevaev.py_objects.gc_objects=9082
servers.reki.mdevaev.py_rusage.ru_idrss=0
servers.reki.mdevaev.py_rusage.ru_inblock=0
servers.reki.mdevaev.py_rusage.ru_isrss=0
servers.reki.mdevaev.py_rusage.ru_ixrss=0
servers.reki.mdevaev.py_rusage.ru_majflt=0
servers.reki.mdevaev.py_rusage.ru_maxrss=7372
servers.reki.mdevaev.py_rusage.ru_minflt=788
servers.reki.mdevaev.py_rusage.ru_msgrcv=0
servers.reki.mdevaev.py_rusage.ru_msgsnd=0
servers.reki.mdevaev.py_rusage.ru_nivcsw=2
servers.reki.mdevaev.py_rusage.ru_nsignals=0
servers.reki.mdevaev.py_rusage.ru_nswap=0
servers.reki.mdevaev.py_rusage.ru_nvcsw=3
servers.reki.mdevaev.py_rusage.ru_oublock=0
servers.reki.mdevaev.py_rusage.ru_stime=0.0
servers.reki.mdevaev.py_rusage.ru_utime=0.003333
servers.reki.mdevaev.py_threads.alive_threads=3
servers.reki.mdevaev.time.now=1395266477.651378
