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# -*- coding: utf-8 -*-
# Description: litespeed netdata python.d module
# Author: Ilya Maschenko (l2isbad)
# SPDX-License-Identifier: GPL-3.0-or-later
import glob
import re
import os
from collections import namedtuple
from bases.FrameworkServices.SimpleService import SimpleService
update_every = 10
# charts order (can be overridden if you want less charts, or different order)
ORDER = [
'net_throughput_http', # net throughput
'net_throughput_https', # net throughput
'connections_http', # connections
'connections_https', # connections
'requests', # requests
'requests_processing', # requests
'pub_cache_hits', # cache
'private_cache_hits', # cache
'static_hits', # static
]
CHARTS = {
'net_throughput_http': {
'options': [None, 'Network Throughput HTTP', 'kilobits/s', 'net throughput',
'litespeed.net_throughput', 'area'],
'lines': [
['bps_in', 'in', 'absolute'],
['bps_out', 'out', 'absolute', -1]
]
},
'net_throughput_https': {
'options': [None, 'Network Throughput HTTPS', 'kilobits/s', 'net throughput',
'litespeed.net_throughput', 'area'],
'lines': [
['ssl_bps_in', 'in', 'absolute'],
['ssl_bps_out', 'out', 'absolute', -1]
]
},
'connections_http': {
'options': [None, 'Connections HTTP', 'conns', 'connections', 'litespeed.connections', 'stacked'],
'lines': [
['conn_free', 'free', 'absolute'],
['conn_used', 'used', 'absolute']
]
},
'connections_https': {
'options': [None, 'Connections HTTPS', 'conns', 'connections', 'litespeed.connections', 'stacked'],
'lines': [
['ssl_conn_free', 'free', 'absolute'],
['ssl_conn_used', 'used', 'absolute']
]
},
'requests': {
'options': [None, 'Requests', 'requests/s', 'requests', 'litespeed.requests', 'line'],
'lines': [
['requests', None, 'absolute', 1, 100]
]
},
'requests_processing': {
'options': [None, 'Requests In Processing', 'requests', 'requests', 'litespeed.requests_processing', 'line'],
'lines': [
['requests_processing', 'processing', 'absolute']
]
},
'pub_cache_hits': {
'options': [None, 'Public Cache Hits', 'hits/s', 'cache', 'litespeed.cache', 'line'],
'lines': [
['pub_cache_hits', 'hits', 'absolute', 1, 100]
]
},
'private_cache_hits': {
'options': [None, 'Private Cache Hits', 'hits/s', 'cache', 'litespeed.cache', 'line'],
'lines': [
['private_cache_hits', 'hits', 'absolute', 1, 100]
]
},
'static_hits': {
'options': [None, 'Static Hits', 'hits/s', 'static', 'litespeed.static', 'line'],
'lines': [
['static_hits', 'hits', 'absolute', 1, 100]
]
}
}
t = namedtuple('T', ['key', 'id', 'mul'])
T = [
t('BPS_IN', 'bps_in', 8),
t('BPS_OUT', 'bps_out', 8),
t('SSL_BPS_IN', 'ssl_bps_in', 8),
t('SSL_BPS_OUT', 'ssl_bps_out', 8),
t('REQ_PER_SEC', 'requests', 100),
t('REQ_PROCESSING', 'requests_processing', 1),
t('PUB_CACHE_HITS_PER_SEC', 'pub_cache_hits', 100),
t('PRIVATE_CACHE_HITS_PER_SEC', 'private_cache_hits', 100),
t('STATIC_HITS_PER_SEC', 'static_hits', 100),
t('PLAINCONN', 'conn_used', 1),
t('AVAILCONN', 'conn_free', 1),
t('SSLCONN', 'ssl_conn_used', 1),
t('AVAILSSL', 'ssl_conn_free', 1),
]
RE = re.compile(r'([A-Z_]+): ([0-9.]+)')
ZERO_DATA = {
'bps_in': 0,
'bps_out': 0,
'ssl_bps_in': 0,
'ssl_bps_out': 0,
'requests': 0,
'requests_processing': 0,
'pub_cache_hits': 0,
'private_cache_hits': 0,
'static_hits': 0,
'conn_used': 0,
'conn_free': 0,
'ssl_conn_used': 0,
'ssl_conn_free': 0,
}
class Service(SimpleService):
def __init__(self, configuration=None, name=None):
SimpleService.__init__(self, configuration=configuration, name=name)
self.order = ORDER
self.definitions = CHARTS
self.path = self.configuration.get('path', '/tmp/lshttpd/')
self.files = list()
def check(self):
if not self.path:
self.error('"path" not specified')
return False
fs = glob.glob(os.path.join(self.path, '.rtreport*'))
if not fs:
self.error('"{0}" has no "rtreport" files or dir is not readable'.format(self.path))
return None
self.debug('stats files:', fs)
for f in fs:
if not is_readable_file(f):
self.error('{0} is not readable'.format(f))
continue
self.files.append(f)
return bool(self.files)
def get_data(self):
"""
Format data received from http request
:return: dict
"""
data = dict(ZERO_DATA)
for f in self.files:
try:
with open(f) as b:
lines = b.readlines()
except (OSError, IOError) as err:
self.error(err)
return None
else:
parse_file(data, lines)
return data
def parse_file(data, lines):
for line in lines:
if not line.startswith(('BPS_IN:', 'MAXCONN:', 'REQ_RATE []:')):
continue
m = dict(RE.findall(line))
for v in T:
if v.key in m:
data[v.id] += float(m[v.key]) * v.mul
def is_readable_file(v):
return os.path.isfile(v) and os.access(v, os.R_OK)
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