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這篇文章將為大家詳細(xì)講解有關(guān)Python如何實(shí)現(xiàn)對(duì)SQL Server 數(shù)據(jù)文件大小的監(jiān)控告警功能,小編覺(jué)得挺實(shí)用的,因此分享給大家做個(gè)參考,希望大家閱讀完這篇文章后可以有所收獲。
python常用的庫(kù):1.requesuts;2.scrapy;3.pillow;4.twisted;5.numpy;6.matplotlib;7.pygama;8.ipyhton等。
系統(tǒng)程序突然報(bào)錯(cuò),報(bào)錯(cuò)信息如下:
The transaction log for database '@dbname' is full. To find out why space in the log cannot be reused, see the log_reuse_wait_desc column in sys.databases
此時(shí)查看log文件,已達(dá)2T。
當(dāng)時(shí)的緊急處理方案是,移除掉鏡像,修改數(shù)據(jù)庫(kù)恢復(fù)模式(由full修改為simple),收縮日志。
為了防止類似問(wèn)題再次發(fā)生,需對(duì)log 文件的大小進(jìn)行監(jiān)控,當(dāng)?shù)竭_(dá)閾值后,觸發(fā)告警。
配置文件qqmssqltest_db_server_conf.ini
同過(guò)此配置文件獲取DB Server信息、DB信息、UID信息、郵件服務(wù)器信息等。
[sqlserver] db_user = XXXXXX db_pwd = XXXXXXX [sqlserver_qq] db_host = 110.119.120.114 db_port = 1433 [windows] user = pwd = [mail] host = zheshiceshidemail.qq.com port = 25 user = pwd = sender = zhejiushiceshidebuyaodangzhen@qq.com
獲取連接串的組件mssql_get_db_connect.py
# -*- coding: utf-8 -*- import sys import os import datetime import configparser import pymssql # pip3 install pymssql-2.1.4-cp37-cp37m-win_amd64.whl # pip3 install pymssql -i https://pypi.doubanio.com/simple # 獲取連接串信息 def mssql_get_db_connect(db_host, db_port): db_host = db_host db_port = db_port db_ps_file = os.path.join(sys.path[0], "qqmssqltest_db_server_conf.ini") config = configparser.ConfigParser() config.read(db_ps_file, encoding="utf-8") db_user = config.get('sqlserver', 'db_user') db_pwd = config.get('sqlserver', 'db_pwd') conn = pymssql.connect(host=db_host, port=db_port, user=db_user, password=db_pwd, charset="utf8", login_timeout=5, timeout=600, autocommit=True) return conn
執(zhí)行SQL語(yǔ)句的組件mysql_exec_sql.py
# -*- coding: utf-8 -*- import mysql_get_db_connect def mysql_exec_dml_sql(db_host, db_port, exec_sql): conn = mysql_get_db_connect.mysql_get_db_connect(db_host, db_port) with conn.cursor() as cursor_db: cursor_db.execute(exec_sql) conn.commit() def mysql_exec_select_sql(db_host, db_port, exec_sql): conn = mysql_get_db_connect.mysql_get_db_connect(db_host, db_port) with conn.cursor() as cursor_db: cursor_db.execute(exec_sql) sql_rst = cursor_db.fetchall() return sql_rst def mysql_exec_select_sql_include_colnames(db_host, db_port, exec_sql): conn = mysql_get_db_connect.mysql_get_db_connect(db_host, db_port) with conn.cursor() as cursor_db: cursor_db.execute(exec_sql) sql_rst = cursor_db.fetchall() col_names = cursor_db.description return sql_rst, col_names
發(fā)郵件的功能send_monitor_mail.py
# -*- coding: utf-8 -*- # pip3 install PyEmail import smtplib from email.mime.text import MIMEText import configparser import os import sys # 發(fā)送告警郵件 def send_monitor_mail(mail_subject, mail_body, mail_receivers="testwukongbaigujing@qq.com"): db_ps_file = os.path.join(sys.path[0], "qqmssqltest_db_server_conf.ini") config = configparser.ConfigParser() config.read(db_ps_file, encoding="utf-8") mail_host = config.get('mail', 'host') mail_port = config.get('mail', 'port') # mail_user = config.get('mail', 'user') # mail_pwd = config.get('mail', 'pwd') sender = config.get('mail', 'sender') # receivers = config.get('mail', 'receivers') # 發(fā)送HTML格式郵件 message = MIMEText(mail_body, 'html', 'utf-8') # message = MIMEText(mail_body, 'plain', 'utf-8') message['subject'] = mail_subject message['From'] = sender message['To'] = mail_receivers try: smtpObj = smtplib.SMTP() smtpObj.connect(mail_host, mail_port) # 25 為 SMTP 端口號(hào) # SMTP AUTH extension not supported by server. # https://github.com/miguelgrinberg/microblog/issues/76 # smtpObj.ehlo() # smtpObj.starttls() # smtpObj.login(mail_user, mail_pwd) smtpObj.sendmail(sender, mail_receivers, message.as_string()) smtpObj.quit() print("郵件發(fā)送成功") except Exception as e: print(e) # except smtplib.SMTPException: # print("Error: 無(wú)法發(fā)送郵件")
收集到的DB數(shù)據(jù)文件的信息保存到表mssql_dblogsize中,其建表的腳本如下:
CREATE TABLE [dbo].[mssql_dblogsize]( [id] [int] IDENTITY(1,1) NOT NULL, [createtime] [datetime] NULL, [vip] [nvarchar](100) NULL, [port] [nvarchar](100) NULL, [Environment] [nvarchar](200) NULL, [Dbname] [varchar](200) NULL, [Logical_Name] [varchar](200) NULL, [Physical_Name] [varchar](1500) NULL, [Size] [bigint] NULL, PRIMARY KEY CLUSTERED ( [id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] GO ALTER TABLE [dbo].[mssql_dblogsize] ADD DEFAULT (getdate()) FOR [createtime] GO
為了方便對(duì)表mssql_dblogsize的數(shù)據(jù)進(jìn)行管理和展示,在其基礎(chǔ)上抽象加工出了一個(gè)視圖v_mssql_dblogsize,注意Size大小的轉(zhuǎn)換(Size/128/1024 as SizeGB)
創(chuàng)建視圖的腳本如下:
CREATE view [dbo].[v_mssql_dblogsize] as SELECT [id] ,[createtime] ,[vip] ,[port] ,[Environment] ,[Dbname] ,[Logical_Name] ,[Physical_Name] ,Size/128/1024 as SizeGB FROM [dbo].[mssql_dblogsize] where size >50*128*1024 and Physical_Name like '%ldf%' GO
本測(cè)試實(shí)例使用的數(shù)據(jù)庫(kù)為qqDB,監(jiān)控的各個(gè)DB Server保存在了表QQDBServer中,注意Port 不一定為標(biāo)準(zhǔn)端口1433.
collect_mssql_dblogsize_info.py
# -*- coding: utf-8 -*- import sys import os import configparser import pymssql import mssql_get_db_connect import mssql_exec_sql from datetime import datetime def collect_mssql_dblogsize_info(): db_ps_file = os.path.join(sys.path[0], "qqmssqltest_db_server_conf.ini") config = configparser.ConfigParser() config.read(db_ps_file, encoding="utf-8") m_db_host = config.get('sqlserver_qq', 'db_host') m_db_port = config.getint('sqlserver_qq', 'db_port') # 獲取需要遍歷的DB列表 exec_sql_1 = """ SELECT IP, case Port when '1444,1433' then '1433' else Port end as Port, Environment FROM qqDB.dbo.QQDBServer where InUse =1 AND ServerType IN ('SQL') and IP=VIP ; """ sql_rst_1 = mssql_exec_sql.mssql_exec_select_sql(m_db_host, m_db_port, exec_sql_1) for j in sql_rst_1: db_host_2 = j[0] db_port_2 = j[1] db_Environment = j[2] exec_sql_2 = """ select '""" + db_host_2 + """' as vip, '""" + db_port_2 + """' as port, '""" + db_Environment + """' as Environment,DB_NAME(database_id) AS DatabaseName, Name AS Logical_Name, Physical_Name, size FROM master.sys.master_files; """ try: sql_rst_2 = mssql_exec_sql.mssql_exec_select_sql(db_host_2, db_port_2, exec_sql_2) except Exception as e: print(e) for k in sql_rst_2: exec_sql_3 = """ insert into qqDB..mssql_dblogsize([vip], [port], [Environment], [Dbname], [Logical_Name], [Physical_Name], [Size]) values('%s', '%s', '%s', '%s', '%s', '%s', '%s'); """ conn = mssql_get_db_connect.mssql_get_db_connect(m_db_host, m_db_port) with conn.cursor() as cursor_db: cursor_db.execute(exec_sql_3 % (k[0], k[1], k[2], k[3], k[4], k[5], k[6] )) conn.commit() collect_mssql_dblogsize_info()
告警郵件的功能實(shí)現(xiàn)為mssql_alert_dblogsize.py,此份代碼的告警閾值設(shè)置的為50G,數(shù)據(jù)來(lái)自于視圖v_mssql_dblogsize。
# -*- coding: utf-8 -*- import sys import os import configparser import pymssql import mssql_get_db_connect import mssql_exec_sql import datetime import send_monitor_mail import pandas as pd def mssql_alert_dblogsize(): mail_subject = "SQL Server DB Log Size Greater than 50G, please check!!! " mail_receivers = "testDBAgrp@qtiantianq.com" db_ps_file = os.path.join(sys.path[0], "qqmssqltest_db_server_conf.ini") config = configparser.ConfigParser() config.read(db_ps_file, encoding="utf-8") m_db_host = config.get('sqlserver_qq', 'db_host') m_db_port = config.getint('sqlserver_qq', 'db_port') # 獲取需要遍歷的DB列表 exec_sql_4 = """ SELECT [vip] as IP,[port],[Environment],[Dbname] ,[Logical_Name],[Physical_Name],[SizeGB],[createtime] FROM qqDB.[dbo].[v_mssql_dblogsize] order by VIP,Dbname; """ sql_rst_4, col_name = mssql_exec_sql.mssql_exec_select_sql_include_colnames(m_db_host, m_db_port, exec_sql_4) # print(sql_rst_4) if len(sql_rst_4): mail_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S') columns = [] for i in range(len(col_name)): columns.append(col_name[i][0]) df = pd.DataFrame(columns=columns) for i in range(len(sql_rst_4)): df.loc[i] = list(sql_rst_4[i]) mail_body = df.to_html(index=False, justify="left").replace('<th>', '<th style = "color:red; text-align:left; background-color: yellow">') mail_html = "<html><body><h5>" + "Deal All : " + "<br><h5>" + "以下數(shù)據(jù)庫(kù)的db log文件,已大于50G.請(qǐng)及時(shí)檢查,謝謝! " + "<br><h5>" + mail_body + "</body></html>" send_monitor_mail.send_monitor_mail(mail_subject=mail_subject, mail_body=mail_html, mail_receivers=mail_receivers) mssql_alert_dblogsize()
定時(shí)任務(wù)是通過(guò)windows的計(jì)劃任務(wù)來(lái)實(shí)現(xiàn)的,在此不做過(guò)多的敘述。告警郵件的部分截圖如下:
關(guān)于“Python如何實(shí)現(xiàn)對(duì)SQL Server 數(shù)據(jù)文件大小的監(jiān)控告警功能”這篇文章就分享到這里了,希望以上內(nèi)容可以對(duì)大家有一定的幫助,使各位可以學(xué)到更多知識(shí),如果覺(jué)得文章不錯(cuò),請(qǐng)把它分享出去讓更多的人看到。
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