36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
import os
|
|
import subprocess
|
|
from RRD import RRD, DS, RRA
|
|
|
|
class GlobalRRD(RRD):
|
|
ds_list = [
|
|
# Number of nodes available
|
|
DS('nodes', 'GAUGE', 120, 0, float('NaN')),
|
|
# Number of client available
|
|
DS('clients', 'GAUGE', 120, 0, float('NaN')),
|
|
]
|
|
rra_list = [
|
|
RRA('AVERAGE', 0.5, 1, 120), # 2 hours of 1 minute samples
|
|
RRA('AVERAGE', 0.5, 60, 744), # 31 days of 1 hour samples
|
|
RRA('AVERAGE', 0.5, 1440, 1780),# ~5 years of 1 day samples
|
|
]
|
|
|
|
def __init__(self, directory):
|
|
super().__init__(os.path.join(directory, "nodes.rrd"))
|
|
self.ensureSanity(self.ds_list, self.rra_list, step=60)
|
|
|
|
def update(self, nodeCount, clientCount):
|
|
super().update({'nodes': nodeCount, 'clients': clientCount})
|
|
|
|
def graph(self, filename, timeframe):
|
|
args = ["rrdtool", 'graph', filename,
|
|
'-s', '-' + timeframe,
|
|
'-w', '800',
|
|
'-h' '400',
|
|
'DEF:nodes=' + self.filename + ':nodes:AVERAGE',
|
|
'LINE1:nodes#F00:nodes\\l',
|
|
'DEF:clients=' + self.filename + ':clients:AVERAGE',
|
|
'LINE2:clients#00F:clients',
|
|
]
|
|
subprocess.check_output(args)
|