Python 监控 Data Guard 脚本

之前弄过监控Data Guard 状态的SQL脚本。 这个Python 监控也就是在Python里调用那个SQL。 并将返回结果发送到相关的邮箱。

一. SQL 语句

保存为checkdgstatus.sql：

conn sys/pwd@orcl_pd as sysdba

column dest_name format a30

column destination format a20

column MEMBER format a45

column destination format a20

column TABLESPACE_NAME format a10

column FREE_RATE format a10

prompt **************************** 实 例 状 态 ************************************;

select instance_name,version,status,database_status from v$instance;

prompt **************************** 数据库状态 *************************************;

select name,log_mode,open_mode from v$database;

prompt **************************** 控制文件状态 ***********************************;

column name format a50

select status,name from v$controlfile;

prompt **************************** 日志文件状态 ***********************************;

select GROUP#,status,type,member from v$logfile;

prompt***************************** 归档目的地状态 *********************************;

select dest_name ,status,database_mode,destination from v$archive_dest_status where dest_id in ('1','2');

set heading off;

prompt ************数据库已连续运行天数*******************************************

select round(a.atime-b.startup_time)||' days ' from(select sysdate atime from dual) a,v$instance b;

set heading on;

prompt***************************** 会 话 数 *************************************;

select sessions_current,sessions_highwater from v$license;

prompt********************** 表空间监控********************;

SELECT D.TABLESPACE_NAME,

SPACE "SUM_SPACE(M)",

BLOCKS "SUM_BLOCKS",

SPACE - NVL (FREE_SPACE, 0) "USED_SPACE(M)",

ROUND( (1 - NVL (FREE_SPACE, 0) / SPACE) * 100, 2) "USED_RATE(%)",

FREE_SPACE "FREE_SPACE(M)"

FROM ( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES) / (1024 * 1024), 2) SPACE,

SUM (BLOCKS) BLOCKS

FROM DBA_DATA_FILES

GROUP BY TABLESPACE_NAME) D,

( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES) / (1024 * 1024), 2) FREE_SPACE

FROM DBA_FREE_SPACE

GROUP BY TABLESPACE_NAME) F

WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+)

UNION ALL --如果有临时表空间

SELECT D.TABLESPACE_NAME,

SPACE "SUM_SPACE(M)",

BLOCKS SUM_BLOCKS,

USED_SPACE "USED_SPACE(M)",

ROUND (NVL (USED_SPACE, 0) / SPACE * 100, 2) "USED_RATE(%)",

NVL (FREE_SPACE, 0) "FREE_SPACE(M)"

FROM ( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES) / (1024 * 1024), 2) SPACE,

SUM (BLOCKS) BLOCKS

FROM DBA_TEMP_FILES

GROUP BY TABLESPACE_NAME) D,

( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES_USED) / (1024 * 1024), 2) USED_SPACE,

ROUND (SUM (BYTES_FREE) / (1024 * 1024), 2) FREE_SPACE

FROM V$TEMP_SPACE_HEADER

GROUP BY TABLESPACE_NAME) F

WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+)

ORDER BY 1;

prompt **************************** 表空间OFFLINE(显示为空正常) ********************;

select tablespace_name ,status from dba_tablespaces where status='OFFLINE';

prompt **************************** SEQUENCE同步数 *********************************;

select max(sequence#)from v$log_history;

CONN sys/pwd@orcl_st as sysdba;

prompt **************************** 备库SEQUENCE同步数 *****************************;

select max(sequence#)from v$log_history;

prompt **************************** 备库日志未应用(显示为空正常) *******************;

select sequence#,applied from v$archived_log where applied='NO';

prompt **************************** 备库日志应用(显示最近十个日志) *****************;

select * from(select sequence#,applied from v$archived_log order by sequence# desc) where rownum<=10;

set time on

disconnect

exit

二. Python 脚本

checkdataguard.py

#!/usr/bin/python

#coding=gbk

import os

import pickle

import sys

import smtplib

def get_dg_data():

pipe = os.popen('/u01/app/oracle/product/10.2.0/db_1/bin/sqlplus /nolog @checkdbstatus.sql')

data = pipe.read().strip()

# print data

return data

def save(obj,fname='dgstatus.txt'):

# save to file

fp=open(fname, 'w')

fp.write(obj)

fp.close()

FROM_USER='[e-mail]'

SMTP_SERVER='192.168.1.100'

EMAIL_USER='tianlesoftware'

EMAIL_PASSWD='pwd'

TO_USERS=['[e-mail]',' [e-mail]']

def mysendmail(fromaddr,toaddrs,subject,body):

server=smtplib.SMTP(SMTP_SERVER)

server.login(EMAIL_USER,EMAIL_PASSWD)

# sendmail 的touser 支持元组，我这里用了个for循环做了个判断。 不判断也行。

for toaddr in toaddrs:

print toaddr

msg = 'From: %s\nTo: %s\nSubject: %s\n\n%s\n' % (fromaddr, toaddr, subject, body)

server.sendmail(fromaddr,toaddr,msg)

server.quit()

body=get_dg_data()

save(body)

subject='192.168.88.199/100 Data Guard Status'

mysendmail(FROM_USER,TO_USERS,subject,body)

三. 将Python 添加到crontab

[oracle@qs-wg-db1 scripts]$ crontab -l

00 9,11,17 * * * export ORACLE_HOME='/u01/app/oracle/product/10.2.0/db_1' && cd /u02/scripts && /u01/scripts/checkdg.py >/u02/scripts/checkdg.log 2>&1 &

在这个地方浪费了不少时间，Python 脚本写很快， 到时这个crontab。 因为直接运行Python 脚本没有问题。 添加到crontab里后就会报错：

[oracle@qs-wg-db1 scripts]$ cat checkdg.log

Error 6 initializing SQL*Plus

Message file sp1<lang>.msb not found

SP2-0750: You may need to set ORACLE_HOME to your Oracle software directory

后来没办法，把环境变量也加到crontab 里了。总算搞定了。环境变量是小，带来的问题却不小。

Linux Crontab 定时任务 命令详解

http://blog.csdn.net/tianlesoftware/archive/2010/02/21/5315039.aspx

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