How to get MySQL error log information through grep

Editor to share with you how to get MySQL error log information through grep, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

To facilitate the maintenance of MySQL, a script is written to provide an interface for collecting error messages. These error messages come from the MySQL error log, and the path to the error-log can be obtained through grep mysql.

#! / usr/bin/env python2.7#-*- encoding: utf-8-*-"" this module is used to extract exception or error messages from daily mysql logs author: xiaomoemail: moxiaomomo@gmail.com "" import osimport sysimport stringfrom datetime import * # default character parser is utf-8reload (sys) sys.setdefaultencoding ('utf-8') COMMON_FLAGS = ["error", "exception", "fail", "crash" "repair"] def _ contain_flag (cur_str): for flag in COMMON_FLAGS: if flag in string.lower (cur_str): return True return False "get the error_log file path of the current mysql instance" def _ get_mysql_error_log_path (): log_path =''grep_infos = os.popen (' ps aux | grep mysql | grep "log-error"') .read () if len (grep_infos) > 1: grep_infos = grep_infos.split ("log-error=") if len (grep_infos) > 1: grep_infos = grep_infos [1] .split ('') if len (grep_infos) > 1: log_path = grep_infos [0] return log_path "" read mysql error log contains exception or error message Line of information "" def _ get_error_info (error_log) Begin_date): error_infos = [] f = open (error_log,'r') lines = f.readlines () for line in lines: data_array = line.split ('') if len (data_array) > 0 and len (data_array [0]) = = 10: dt_strs = data_array [0] .split ('-') cur_date = date (int (dt_strs [0]) Int (dt_strs [1]) Int (dt_ strs [2]) if cur_date > = begin_date and _ contain_flag (line): error_infos.append (line) f.close () return error_infos "" assemble and return mysql error log message "def get_mysql_errors (begin_date=date.today ()-timedelta (1)): try: err_log_path = _ get_mysql_ Error_log_path () if len (err_log_path) > 1: return _ get_error_info (err_log_path Begin_date) except Exception,e: print "[get_mysql_errors]% s"% e return [] above is how to get all the contents of MySQL error log information through grep Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!