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# -*- coding: utf-8 -*-
# Description: PHP-FPM netdata python.d module
# Author: Pawel Krupa (paulfantom)
# Author: Ilya Mashchenko (ilyam8)
# SPDX-License-Identifier: GPL-3.0-or-later
import json
import re
from bases.FrameworkServices.UrlService import UrlService
REGEX = re.compile(r'([a-z][a-z ]+): ([\d.]+)')
POOL_INFO = [
('active processes', 'active'),
('max active processes', 'maxActive'),
('idle processes', 'idle'),
('accepted conn', 'requests'),
('max children reached', 'reached'),
('slow requests', 'slow')
]
PER_PROCESS_INFO = [
('request duration', 'ReqDur'),
('last request cpu', 'ReqCpu'),
('last request memory', 'ReqMem')
]
def average(collection):
return sum(collection, 0.0) / max(len(collection), 1)
CALC = [
('min', min),
('max', max),
('avg', average)
]
ORDER = [
'connections',
'requests',
'performance',
'request_duration',
'request_cpu',
'request_mem',
]
CHARTS = {
'connections': {
'options': [None, 'PHP-FPM Active Connections', 'connections', 'active connections', 'phpfpm.connections',
'line'],
'lines': [
['active'],
['maxActive', 'max active'],
['idle']
]
},
'requests': {
'options': [None, 'PHP-FPM Requests', 'requests/s', 'requests', 'phpfpm.requests', 'line'],
'lines': [
['requests', None, 'incremental']
]
},
'performance': {
'options': [None, 'PHP-FPM Performance', 'status', 'performance', 'phpfpm.performance', 'line'],
'lines': [
['reached', 'max children reached'],
['slow', 'slow requests']
]
},
'request_duration': {
'options': [None, 'PHP-FPM Requests Duration Among All Idle Processes', 'milliseconds', 'request duration',
'phpfpm.request_duration',
'line'],
'lines': [
['minReqDur', 'min', 'absolute', 1, 1000],
['maxReqDur', 'max', 'absolute', 1, 1000],
['avgReqDur', 'avg', 'absolute', 1, 1000]
]
},
'request_cpu': {
'options': [None, 'PHP-FPM Last Request CPU Usage Among All Idle Processes', 'percentage', 'request CPU',
'phpfpm.request_cpu', 'line'],
'lines': [
['minReqCpu', 'min'],
['maxReqCpu', 'max'],
['avgReqCpu', 'avg']
]
},
'request_mem': {
'options': [None, 'PHP-FPM Last Request Memory Usage Among All Idle Processes', 'KB', 'request memory',
'phpfpm.request_mem', 'line'],
'lines': [
['minReqMem', 'min', 'absolute', 1, 1024],
['maxReqMem', 'max', 'absolute', 1, 1024],
['avgReqMem', 'avg', 'absolute', 1, 1024]
]
}
}
class Service(UrlService):
def __init__(self, configuration=None, name=None):
UrlService.__init__(self, configuration=configuration, name=name)
self.order = ORDER
self.definitions = CHARTS
self.url = self.configuration.get('url', 'http://localhost/status?full&json')
self.json = '&json' in self.url or '?json' in self.url
self.json_full = self.url.endswith(('?full&json', '?json&full'))
self.if_all_processes_running = dict(
[(c_name + p_name, 0) for c_name, func in CALC for metric, p_name in PER_PROCESS_INFO]
)
def _get_data(self):
"""
Format data received from http request
:return: dict
"""
raw = self._get_raw_data()
if not raw:
return None
raw_json = parse_raw_data_(is_json=self.json, raw_data=raw)
# Per Pool info: active connections, requests and performance charts
to_netdata = fetch_data_(raw_data=raw_json, metrics_list=POOL_INFO)
# Per Process Info: duration, cpu and memory charts (min, max, avg)
if self.json_full:
p_info = dict()
to_netdata.update(self.if_all_processes_running) # If all processes are in running state
# Metrics are always 0 if the process is not in Idle state because calculation is done
# when the request processing has terminated
for process in [p for p in raw_json['processes'] if p['state'] == 'Idle']:
p_info.update(fetch_data_(raw_data=process, metrics_list=PER_PROCESS_INFO, pid=str(process['pid'])))
if p_info:
for new_name in PER_PROCESS_INFO:
for name, func in CALC:
to_netdata[name + new_name[1]] = func([p_info[k] for k in p_info if new_name[1] in k])
return to_netdata or None
def fetch_data_(raw_data, metrics_list, pid=''):
"""
:param raw_data: dict
:param metrics_list: list
:param pid: str
:return: dict
"""
result = dict()
for metric, new_name in metrics_list:
if metric in raw_data:
result[new_name + pid] = float(raw_data[metric])
return result
def parse_raw_data_(is_json, raw_data):
"""
:param is_json: bool
:param regex: compiled regular expr
:param raw_data: dict
:return: dict
"""
if is_json:
try:
return json.loads(raw_data)
except ValueError:
return dict()
else:
raw_data = ' '.join(raw_data.split())
return dict(REGEX.findall(raw_data))
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