python脚本监控Tomcat服务器的方法

from smtplib import SMTP_SSL 
from email.mime.text import MIMEText 
from email.header import Header 
from os.path import getsize 
from sys import exit 
from re import compile, IGNORECASE 
import sys, time 
import os 
#定义主机 帐号 密码 收件人 邮件主题 
#定义主机 帐号 密码 收件人 邮件主题 
mail_info = { 
 "from": "info@sogoucloud.cn", 
 "to": "zhupei@sogoucloud.cn", 
 "hostname": "smtp.exmail.qq.com", 
 "username": "info@sogoucloud.cn", 
 "password": "123456", 
 "mail_subject": "qybd服务器异常", 
 "mail_text": "hello, tomcat服务器出现异常了!,请及时处理", 
 "mail_encoding": "utf-8" 
} 
#发送邮件函数 
def send_mail(error): 
 #定义邮件的头部信息 
 #连接SMTP服务器，然后发送信息 
 smtp = SMTP_SSL(mail_info["hostname"]) 
 smtp.set_debuglevel(1) 
 smtp.ehlo(mail_info["hostname"]) 
 smtp.login(mail_info["username"], mail_info["password"]) 
 msg = MIMEText(error, "plain", mail_info["mail_encoding"]) 
 msg["Subject"] = Header(mail_info["mail_subject"], mail_info["mail_encoding"]) 
 msg["from"] = mail_info["from"] 
 msg["to"] = mail_info["to"] 
 smtp.sendmail(mail_info["from"], mail_info["to"], msg.as_string()) 
 smtp.quit() 
def isRunning(process_name): 
 try: 
  process = len(os.popen('ps aux | grep "' + process_name + '" | grep -v grep').readlines()) 
  if process >= 1: 
   return True 
  else: 
   return False 
 except: 
  print("Check process ERROR!!!") 
  return False 
#调用发送邮件函数发送邮件 
if __name__ == '__main__': 
 process_name = "qybd" 
 isrunning = isRunning(process_name) 
 print(isrunning) 
 if isrunning == False: 
  send_mail("老铁!qybd服务器挂了!") 

*/3 * * * * python /usr/tools/qybd/cmd/sendEmail.py >> /usr/tools/qybd/cmd/tomcatlife.py.log 2>&1

from smtplib import SMTP_SSL 
from email.mime.text import MIMEText 
from email.header import Header 
from os.path import getsize 
from sys import exit 
from re import compile, IGNORECASE 
#定义主机 帐号 密码 收件人 邮件主题 
#定义主机 帐号 密码 收件人 邮件主题 
mail_info = { 
 "from": "info@sogoucloud.cn", 
 "to": "zhupei@sogoucloud.cn", 
 "hostname": "smtp.exmail.qq.com", 
 "username": "info@sogoucloud.cn", 
 "password": "123456", 
 "mail_subject": "qybd服务器异常", 
 "mail_text": "hello, tomcat服务器出现异常了!,请及时处理", 
 "mail_encoding": "utf-8" 
} 
#定义tomcat日志文件位置 
tomcat_log = '/usr/tools/qybd/tomcat/logs/catalina.out' 
#该文件是用于记录上次读取日志文件的位置,执行脚本的用户要有创建该文件的权限 
last_position_logfile = '/usr/tools/qybd/tomcat/logs/last_position.txt' 
#匹配的错误信息关键字的正则表达式 
pattern = compile(r'Exception|^\t+\bat\b',IGNORECASE) 
#发送邮件函数 
def send_mail(error): 
 #定义邮件的头部信息 
 #连接SMTP服务器，然后发送信息 
 smtp = SMTP_SSL(mail_info["hostname"]) 
 smtp.set_debuglevel(1) 
 smtp.ehlo(mail_info["hostname"]) 
 smtp.login(mail_info["username"], mail_info["password"]) 
 msg = MIMEText(error, "plain", mail_info["mail_encoding"]) 
 msg["Subject"] = Header(mail_info["mail_subject"], mail_info["mail_encoding"]) 
 msg["from"] = mail_info["from"] 
 msg["to"] = mail_info["to"] 
 smtp.sendmail(mail_info["from"], mail_info["to"], msg.as_string()) 
 smtp.quit() 
#读取上一次日志文件的读取位置 
def get_last_position(file): 
 try: 
  data = open(file,'r') 
  last_position = data.readline() 
  if last_position: 
   last_position = int(last_position) 
  else: 
   last_position = 0 
 except: 
  last_position = 0 
 return last_position 
#写入本次日志文件的本次位置 
def write_this_position(file,last_positon): 
 try: 
  data = open(file,'w') 
  data.write(str(last_positon)) 
  data.write('\n' + "Don't Delete This File,It is Very important for Looking Tomcat Error Log !! \n") 
  data.close() 
 except: 
  print "Can't Create File !" + file 
  exit() 
#分析文件找出异常的行 
def analysis_log(file): 
 error_list = []           #定义一个列表，用于存放错误信息. 
 try: 
  data = open(file,'r') 
 except: 
  exit() 
 last_position = get_last_position(last_position_logfile) #得到上一次文件指针在日志文件中的位置 
 this_postion = getsize(tomcat_log)      #得到现在文件的大小，相当于得到了文件指针在末尾的位置 
 if this_postion < last_position:      #如果这次的位置 小于 上次的位置说明 日志文件轮换过了，那么就从头开始 
  data.seek(0) 
 elif this_postion == last_position:      #如果这次的位置 等于 上次的位置 说明 还没有新的日志产生 
  exit() 
 elif this_postion > last_position:      #如果是大于上一次的位置，就移动文件指针到上次的位置 
  data.seek(last_position) 
 for line in data: 
  if pattern.search(line): 
   error_list.append(line) 
 write_this_position(last_position_logfile,data.tell()) #写入本次读取的位置 
 data.close() 
 return ''.join(error_list)        #形成一个字符串 
#调用发送邮件函数发送邮件 
error_info = analysis_log(tomcat_log) 
if error_info: 
 send_mail(error_info) 

*/10 * * * * python /usr/tools/qybd/cmd/tomcat_log_error_analysis.py >> /usr/tools/qybd/cmd/crontest.py.log 2>&1