使用shell脚本实现对Oracle数据库的监控与管理将大大简化DBA的工作负担，如常见的对实例的监控，监听的监控，告警日至的监控，以

使用shell脚本实现对Oracle数据库的监控与管理将大大简化DBA的工作负担，如常见的对实例的监控，监听的监控，告警日至的监控，以及数据库的备份，AWR report的自动邮件等。本文给出Linux 下使用 shell 脚本来监控 Oracle 监听器。

Linux Shell的相关参考：

Linux/Unix shell 脚本中调用SQL,RMAN脚本

Linux/Unix shell sql 之间传递变量

Linux Unix shell 调用 PL/SQL

Linux/Unix shell 监控Oracle实例(monitor instance)

1、监控Oracle监听shell脚本

robin@SZDB:~/dba_scripts/custom/bin> more ck_lsnr.sh

# +-------------------------------------------------------+

# + CHECK LISTENER STATUS AND RESTART IT WHEN FAILED |

# + Author : Robinson |

# + Blog ：,net/robinson_0612 |

# + Parameter : No |

# +-------------------------------------------------------+

#!/bin/bash

# --------------------

# Define variable

# --------------------

if [ -f ~/.bash_profile ]; then

. ~/.bash_profile

fi

TIMESTAMP=`date +%Y%m%d%H%M`; export TIMESTAMP

DBALIST="robinson.cheng@12306.com"; export DBALIST

MAILPATH=/users/robin/dba_scripts/sendEmail-v1.56

LOG_DIR=/users/robin/dba_scripts/custom/log

LOG_FILE=${LOG_DIR}/lsnr_status_$TIMESTAMP.log

RETENTION=2

# -----------------------------------------

# Define how many listeners need to monitor

# -----------------------------------------

DB_COUNT=6

DB[1]=CNBO1

DB[2]=CNBOTST

DB[3]=CNMMBO

DB[4]=MMBOTST

DB[5]=SYBO2SZ

DB[6]=CNBO2

# -------------------------

# Begin to check listener

# -------------------------

touch $LOG_FILE

echo "`date` " >>$LOG_FILE

echo " The following listeners are down on `hostname`" >>$LOG_FILE

echo "-----------------------------------------------" >>$LOG_FILE

COUNT=1

while [ $COUNT -le $DB_COUNT ];

do

for db in ${DB[$COUNT]};

do

lsnr_flag=`ps -ef | grep -i listener_${DB[$COUNT]} | grep -v grep`

if [ -z "$lsnr_flag" ]; then

echo "The listener for the database ${DB[$COUNT]} is down." >>$LOG_FILE

echo "=======> restart listener for the database ${DB[$COUNT]}" >>$LOG_FILE

lsnrctl start listener_${DB[$COUNT]} >>$LOG_FILE

echo -e "------------------------------------------------------------------\n" >>$LOG_FILE

fi

done;

COUNT=`expr $COUNT + 1`

done;

# --------------------------

# Send Email

# --------------------------

cnt=`grep "restart listener" $LOG_FILE |wc -l`

if [ "$cnt" -gt 0 ];then

$MAILPATH/sendEmail -f szdb@2gotrade.com -t $DBALIST -u "Listener crashed on `hostname`" -o message-file=$LOG_FILE

else

rm -rf $LOG_FILE

fi

# ------------------------------------------------

# Removing files older than $RETENTION parameter

# ------------------------------------------------

find ${LOG_DIR} -name "*lsnr_status*" -mtime +$RETENTION -exec rm {} \;

exit

oracle@SZDB:/users/robin/dba_scripts/custom/bin> ./ck_lsnr.sh

Feb 01 17:16:34 szdb sendEmail[18611]: Email was sent successfully!

Fri Feb 1 17:16:33 CST 2013 #下面是测试脚本邮件发送包含的内容

The following listeners are down on SZDB

-----------------------------------------------

The listener for the database CNBO1 is down.

=======> restart listener for the database CNBO1

LSNRCTL for Linux: Version 10.2.0.3.0 - Production on 01-FEB-2013 17:16:33

Copyright (c) 1991, 2006, Oracle. All rights reserved.

Starting /users/oracle/OraHome10g/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.3.0 - Production System parameter file is

/users/oracle/OraHome10g/network/admin/listener.ora

Log messages written to /users/oracle/OraHome10g/network/log/listener_cnbo1.log

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.101.7.2)(PORT=1901)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.101.7.2)(PORT=1901)))

STATUS of the LISTENER

------------------------

Alias listener_CNBO1

Version TNSLSNR for Linux: Version 10.2.0.3.0 - Production

Start Date 01-FEB-2013 17:16:33

Uptime 0 days 0 hr. 0 min. 0 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /users/oracle/OraHome10g/network/admin/listener.ora

Listener Log File /users/oracle/OraHome10g/network/log/listener_cnbo1.log

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.101.7.2)(PORT=1901)))

Services Summary...

Service "CNBO1" has 1 instance(s).

Instance "CNBO1", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

------------------------------------------------------------------

2、补充

a、上面的监控监听脚本可以监控多个监听器。

b、监听器的名字的定义格式为LISTENER_$ORACLE_SID，未考虑缺省监听器的情形，，如使用缺省监听器请做相应更改。

b、使用了数组的方式来定义实例名，每一个对应一个监听器，确保DB_COUNT的值与需要监控的监听器个数相符。

c、数组的每一个元素使用的是ORACLE_SID，如果是RAC，可以将其改为主机名。

d、如果检测到监听器宕掉的情形则会自动重启监听并发送邮件。

e、使用了sendEmail邮件发送程序来发送邮件。参阅：不可或缺的 sendEmail

f、通过crontab来部署该脚本。另，Oracle 10g测试可用，Oracle 11g待测。

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