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# -*- coding: utf-8 -*-
# Description: chrony netdata python.d module
# Author: Dominik Schloesser (domschl)
from base import ExecutableService
# default module values (can be overridden per job in `config`)
# update_every = 10
priority = 60000
retries = 10
# charts order (can be overridden if you want less charts, or different order)
ORDER = ['timediff', 'lastoffset', 'rmsoffset', 'rootdelay',
'rootdispersion', 'skew', 'frequency', 'residualfreq']
CHARTS = {
# id: {
# 'options': [name, title, units, family, context, charttype],
# 'lines': [
# [unique_dimension_name, name, algorithm, multiplier, divisor]
# ]}
'timediff': {
'options': [None, "Difference system time to NTP", "us", 'chrony', 'chrony.timediff', 'line'],
'lines': [
['timediff', None, 'absolute', 1, 1000]
]},
'lastoffset': {
'options': [None, "Last offset", "us", 'chrony', 'chrony.lastoffset', 'line'],
'lines': [
['lastoffset', None, 'absolute', 1, 1000]
]},
'rmsoffset': {
'options': [None, "RMS offset", "us", 'chrony', 'chrony.rmsoffset', 'line'],
'lines': [
['rmsoffset', None, 'absolute', 1, 1000]
]},
'rootdelay': {
'options': [None, "Root delay", "us", 'chrony', 'chrony.rootdelay', 'line'],
'lines': [
['rootdelay', None, 'absolute', 1, 1000]
]},
'rootdispersion': {
'options': [None, "Root dispersion", "us", 'chrony', 'chrony.rootdispersion', 'line'],
'lines': [
['rootdispersion', None, 'absolute', 1, 1000]
]},
'skew': {
'options': [None, "Skew, error bound on frequency", "ppm", 'chrony', 'chrony.skew', 'line'],
'lines': [
['skew', None, 'absolute', 1, 1000]
]},
'frequency': {
'options': [None, "Frequency", "ppm", 'chrony', 'chrony.frequency', 'line'],
'lines': [
['frequency', None, 'absolute', 1, 1000]
]},
'residualfreq': {
'options': [None, "Residual frequency", "ppm", 'chrony', 'chrony.residualfreq', 'line'],
'lines': [
['residualfreq', None, 'absolute', 1, 1000]
]}
}
class Service(ExecutableService):
def __init__(self, configuration=None, name=None):
ExecutableService.__init__(
self, configuration=configuration, name=name)
self.command = "chronyc -n tracking"
self.order = ORDER
self.definitions = CHARTS
CHRONY = [('Frequency', 'frequency', 1e3),
('Last offset', 'lastoffset', 1e9),
('RMS offset', 'rmsoffset', 1e9),
('Residual freq', 'residualfreq', 1e3),
('Root delay', 'rootdelay', 1e9),
('Root dispersion', 'rootdispersion', 1e9),
('Skew', 'skew', 1e3),
('System time', 'timediff', 1e9)]
def _get_data(self):
"""
Format data received from shell command
:return: dict
"""
raw_data = self._get_raw_data()
if not raw_data:
return None
raw_data = (line.split(':', 1) for line in raw_data)
parsed, data = dict(), dict()
for line in raw_data:
try:
key, value = (l.strip() for l in line)
except ValueError:
continue
if len(value) > 0:
parsed[key] = value.split()[0]
for key, dim_id, multiplier in self.CHRONY:
try:
data[dim_id] = int(float(parsed[key]) * multiplier)
except (KeyError, ValueError):
continue
return data or None
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