1 # -*- coding: utf-8 -*-
2 # Description: mdstat netdata python.d module
5 from base import SimpleService
12 class Service(SimpleService):
13 def __init__(self, configuration=None, name=None):
14 SimpleService.__init__(self, configuration=configuration, name=name)
15 self.order = ['agr_health']
16 self.definitions = {'agr_health':
18 [None, 'Faulty devices in MD', 'failed disks', 'health', 'md.health', 'line'],
20 self.proc_mdstat = '/proc/mdstat'
21 self.regex_disks = compile(r'((?<=\ )[a-zA-Z_0-9]+(?= : active)).*?((?<= \[)[0-9]+)/([0-9]+(?=\] ))')
22 self.regex_status = compile(r'([a-zA-Z_0-9]+)( : active)[^:]*?([a-z]+) = ([0-9.]+(?=%)).*?((?<=finish=)[0-9.]+)min speed=([0-9]+)')
25 raw_data = self._get_raw_data()
27 self.error('Cant read mdstat data from %s' % (self.proc_mdstat))
30 md_list = [md[0] for md in self.regex_disks.findall(raw_data)]
33 self.error('No active arrays in %s' % (self.proc_mdstat))
38 self.order.append(''.join([md, '_status']))
39 self.order.append(''.join([md, '_rate']))
40 self.definitions['agr_health']['lines'].append([''.join([md, '_health']), md, 'absolute'])
41 self.definitions[md] = {'options':
42 [None, '%s disks stats' % md, 'disks', md, 'md.disks', 'stacked'],
43 'lines': [[''.join([md, '_total']), 'total', 'absolute'],
44 [''.join([md, '_inuse']), 'inuse', 'absolute']]}
45 self.definitions[''.join([md, '_status'])] = {'options':
46 [None, '%s current status' % md, 'percent', md, 'md.status', 'line'],
47 'lines': [[''.join([md, '_resync']), 'resync', 'absolute', 1, 100],
48 [''.join([md, '_recovery']), 'recovery', 'absolute', 1, 100],
49 [''.join([md, '_reshape']), 'reshape', 'absolute', 1, 100],
50 [''.join([md, '_check']), 'check', 'absolute', 1, 100]]}
51 self.definitions[''.join([md, '_rate'])] = {'options':
52 [None, '%s operation status' % md, 'rate', md, 'md.rate', 'line'],
53 'lines': [[''.join([md, '_finishin']), 'finish min', 'absolute', 1, 100],
54 [''.join([md, '_rate']), 'megabyte/s', 'absolute', -1, 100]]}
55 self.info('Plugin was started successfully. MDs to monitor %s' % (md_list))
59 def _get_raw_data(self):
61 Read data from /proc/mdstat
65 with open(self.proc_mdstat, 'rt') as proc_mdstat:
66 raw_result = proc_mdstat.read()
70 raw_result = ' '.join(raw_result.split())
75 Parse data from _get_raw_data()
78 raw_mdstat = self._get_raw_data()
79 mdstat_disks = self.regex_disks.findall(raw_mdstat)
80 mdstat_status = self.regex_status.findall(raw_mdstat)
83 for md in mdstat_disks:
84 to_netdata[''.join([md[0], '_total'])] = int(md[1])
85 to_netdata[''.join([md[0], '_inuse'])] = int(md[2])
86 to_netdata[''.join([md[0], '_health'])] = int(md[1]) - int(md[2])
87 to_netdata[''.join([md[0], '_check'])] = 0
88 to_netdata[''.join([md[0], '_resync'])] = 0
89 to_netdata[''.join([md[0], '_reshape'])] = 0
90 to_netdata[''.join([md[0], '_recovery'])] = 0
91 to_netdata[''.join([md[0], '_finishin'])] = 0
92 to_netdata[''.join([md[0], '_rate'])] = 0
94 for md in mdstat_status:
95 to_netdata[''.join([md[0], '_' + md[2]])] = round(float(md[3]) * 100)
96 to_netdata[''.join([md[0], '_finishin'])] = round(float(md[4]) * 100)
97 to_netdata[''.join([md[0], '_rate'])] = round(float(md[5]) / 1000 * 100)