|
Server : Apache/2.4.18 (Ubuntu) System : Linux canvaswebdesign 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 User : oppastar ( 1041) PHP Version : 7.0.33-0ubuntu0.16.04.15 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, Directory : /usr/lib/python2.7/dist-packages/landscape/monitor/ |
Upload File : |
import os
import time
from landscape.accumulate import Accumulator
from landscape.lib.monitor import CoverageMonitor
from landscape.monitor.plugin import MonitorPlugin
class LoadAverage(MonitorPlugin):
"""Plugin captures information about load average."""
persist_name = "load-average"
scope = "load"
# Prevent the Plugin base-class from scheduling looping calls.
run_interval = None
def __init__(self, interval=15, monitor_interval=60*60,
create_time=time.time, get_load_average=os.getloadavg):
self._interval = interval
self._monitor_interval = monitor_interval
self._create_time = create_time
self._load_averages = []
self._get_load_average = get_load_average
def register(self, registry):
super(LoadAverage, self).register(registry)
self._accumulate = Accumulator(self._persist, registry.step_size)
self.registry.reactor.call_every(self._interval, self.run)
self._monitor = CoverageMonitor(self._interval, 0.8,
"load average snapshot",
create_time=self._create_time)
self.registry.reactor.call_every(self._monitor_interval,
self._monitor.log)
self.registry.reactor.call_on("stop", self._monitor.log, priority=2000)
self.call_on_accepted("load-average", self.send_message, True)
def create_message(self):
load_averages = self._load_averages
self._load_averages = []
return {"type": "load-average", "load-averages": load_averages}
def exchange(self, urgent=False):
self.registry.broker.call_if_accepted("load-average",
self.send_message, urgent)
def send_message(self, urgent=False):
message = self.create_message()
if len(message["load-averages"]):
self.registry.broker.send_message(message, self._session_id,
urgent=urgent)
def run(self):
self._monitor.ping()
new_timestamp = int(self._create_time())
new_load_average = self._get_load_average()[0]
step_data = self._accumulate(new_timestamp, new_load_average,
"accumulate")
if step_data:
self._load_averages.append(step_data)