用python指令碼監控並發量

該指令碼作用用於查詢日誌過去一分鐘內的並發量，並發單位位1分鐘，結果列印在標準輸出中，可以配合一些軟體實現日誌的並發即時監控，比如zabbix。

#! /usr/local/bin/python3import sysimport reimport datetimeimport osdef 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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