Python腳本實現(xiàn)Zabbix多行日志監(jiān)控過程解析

更新時間：2020年08月26日 09:09:17 作者：Zabbix_Z大叔

這篇文章主要介紹了Python腳本實現(xiàn)Zabbix多行日志監(jiān)控過程解析,文中通過示例代碼介紹的非常詳細，對大家的學習或者工作具有一定的參考學習價值,需要的朋友可以參考下

通過使用zabbix 日志監(jiān)控我發(fā)現(xiàn)一個問題例如oracle的日志有報錯的情況，通常不會去手動清理這樣的話當?shù)诙斡腥罩緦戇M來的時候 zabbix的機制是回去檢查全部日志，這樣的話之前已經告警過的錯誤日志,又會被檢查到,這樣就會出現(xiàn)重復告警，而且zabbix的日志監(jiān)控只能讀到匹配當前行關鍵字的數(shù)據(jù)，感覺不太靈活, 比如我想要匹配到的關鍵字之后再當前關鍵字的下N行再去匹配另一個關鍵字這個時候就比較麻煩,在這里給大家推薦一個有效,便捷解決的方式。

通過Python腳本實現(xiàn)日志監(jiān)控要求 1 記錄腳本檢查日志位置,避免下次觸發(fā)腳本的時候出現(xiàn)重復告警 2 關鍵字匹配支持正則 3 支持多個關鍵字查詢，例如第一個關鍵字匹配到當之后在這個關鍵字的下N行再去匹配第二個關鍵字具體傳參格式
python3 npar.py /u03/z.txt '(ORA-|REEOR)，(04030|02011)' 2

第一個參數(shù)是日志路徑第二個參數(shù)是關鍵字第三個參數(shù)為匹配到第一個表達式這種的關鍵字后再去地 N(2)行去匹配第二個關鍵詞（04030|02011）具體腳本實現(xiàn)如下

import os
import sys
logtxt = "logtxt.txt"
def read_txt(files, start_line):
	data = []
data.append("")
with open(str(files) + "", "r",
		encoding = 'UTF-8') as f:
	for line in f.readlines():
	line = line.strip('\n')# 去掉列表中每一個元素的換行符
data.append(line)
# 記錄本次的行數(shù)
wirte_log(len(data) - 1)
if len(data) > start_line:
	return data[start_line - 1: ]
else :
	print("開始行數(shù)大于文本文件總行數(shù)！")
def wirte_log(lines):
	global logtxt
with open(logtxt, "w") as file: #”w "代表著每次運行都覆蓋內容
file.write(str(lines))
def read_log():
	global logtxt
if not os.path.exists(logtxt):
	with open(logtxt, "w") as file: #”w "代表著每次運行都覆蓋內容
file.write(str(1))
with open(logtxt + "", "r", encoding =
		'UTF-8') as f:
	s_lines = f.readlines()
print("從第" + str(s_lines[0]) + "行開始")
return s_lines[0]
def deal_read_log(files, keyword,
		interval_line):
	keywords = keyword.replace("(", "").replace(
		")", "").replace("'", "").replace('"',
		'"').split(',')
start_keywords = keywords[0].split("|")
end_keywords = keywords[1].split("|")
start_line = read_log()
lines_data = read_txt(files, int(
	start_line))
for_line = 1
while (for_line < len(lines_data)):
	#print(for_line)
# print(lines_data[for_line])
#
if end_keywords in lines_data[for_line]:
	#print(lines_data[for_line])
# print("-------------------")
# for_line = for_line + 1
#
else :
	isexist = 0
for sk in start_keywords:
	if sk in lines_data[for_line]:
	isexist = 1
break;
if isexist == 1:
	#if start_keywords[0] in lines_data[
		for_line] or start_keywords[1] in
	lines_data[for_line]:
	#當前行有end_keywords
isexist2 = 0
for sk in end_keywords:
	if sk in lines_data[for_line]:
	isexist2 = 1
break;
if isexist2 == 1:
	#print("行數(shù)=" + str(start_line - 1 +
		for_line) + "-" + str(start_line - 1 +
		for_line))
print(lines_data[for_line])
else :
	#當前行沒有end_keywords。 往下interval_line行去尋找
# 標記當前行數(shù)
flag_line = for_line
count = 1
for_line = for_line + 1
while (for_line < len(lines_data)):
	isexist3 = 0
for sk in end_keywords:
	if sk in lines_data[for_line]:
	isexist3 = 1
break;
if isexist3 == 1:
	#print("行數(shù)=" + str(start_line - 1 +
		flag_line) + "-" + str(start_line -
		1 + for_line))
for prin in range(flag_line, for_line +
		1):
	print(lines_data[prin])
break;
for_line = for_line + 1
if count == int(interval_line):
	break;
count = count + 1
for_line = for_line - 1
for_line = for_line + 1
if name == 'main':
	files = sys.argv[1]
if '.log' in files:
	logtxt = files.replace(".log",
		"_log.txt")
else :
	logtxt = files.replace(".txt",
		"_log.txt")
# files = "ora.txt"
keywords = sys.argv[2]
# keywords = "'((04030|04000)，ORA-)'"
#上下關聯(lián)行數(shù)
interval_line = int(sys.argv[3])
# interval_line = 10
deal_read_log(files, keywords,
	interval_line)

接下來就是添加監(jiān)控了

在agent的conf 文件里面添加UserParameter