用python脚本监控并发量

python

该脚本作用用于查询日志过去一分钟内的并发量,并发单位位1分钟,结果打印在标准输出中,可以配合一些软件实现日志的并发实时监控,比如zabbix。

#! /usr/local/bin/python3

import sys

import re

import datetime

import os

def generate_previous_minutes():

format="%d/%b/%Y:%H:%M"

return (datetime.datetime.today()-datetime.timedelta(minutes=1)).strftime(format)

def check_logs(log_path,examine_minutes):

regex_minutes=re.compile(examine_minutes)

minutes_count=0

step=10*1024*1024

with open(log_path,encoding="Latin-1") as file:

line=file.readline()

while line:

time_line=line.split(" ")[3][1:]

if time_line>=examine_minutes:

file.seek(file.tell()-step)

file.readline()

break

file.seek(file.tell()+step)

if file.tell()>=os.path.getsize(log_path):

file.seek(file.tell()-step)

file.readline()

break

file.readline()

line=file.readline().strip()

for line in file:

line=line.strip()

words=line.split(" ")

if(regex_minutes.search(words[3])):

minutes_count+=1

print(minutes_count)

def main(log_path):

previous_minutes=generate_previous_minutes()

print(previous_minutes)

check_logs(log_path,previous_minutes)

if __name__ == "__main__":

log_path=sys.argv[1]

main(log_path)


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