Linux/Unix shell 监控Oracle实例(monitor instance)
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 实例。
Linux Shell的相关参考:
1、监控Oracle实例shell脚本
robin@SZDB:~/dba_scripts/custom/bin> more ck_inst.sh
# +-------------------------------------------------------+
# + CHECK INSTANCE STATUS AND SEND MAIL |
# + Author : Robinson |
# + Blog : http://blog.csdn,net/robinson_0612 |
# + Desc: |
# + variable X_DB use to exclude some instance |
# +-------------------------------------------------------+
#!/bin/bash
# --------------------------------------------
# Set environment vairable and define variable
# --------------------------------------------
if [ -f ~/.bash_profile ]; then
. ~/.bash_profile
fi
ORATAB=/etc/oratab
TIMESTAMP=`date +%Y%m%d%H%M`
MAILPATH=/users/robin/dba_scripts/sendEmail-v1.56
LOG_DIR=/users/robin/dba_scripts/custom/log
LOG_FILE=${LOG_DIR}/ck_inst_$TIMESTAMP.log
DBALIST="[email protected];[email protected]"
X_DB='SYBO2SZ|CNQDII|CNFO'
RETENTION=1
# ----------------------
# Check instance status
# ----------------------
if [ -z "$X_DB" ]; then
X_DB='DUMMY'
fi
{
echo "`date` "
echo "Oracle Database(s) Status on `hostname`"
echo "-----------------------------------------"
db=`egrep -i ":Y|:N" $ORATAB | cut -d":" -f1 | grep -v "\#" | grep -v "\*"`
pslist=`ps -ef | grep pmon | grep -v grep`
dblist=`for i in $db; do echo $i; done | grep -vP $X_DB`
for i in $dblist; do
echo "$pslist" | grep "[oa]*_pmon_$i" > /dev/null 2>&1
if (( $? )); then
echo "Oracle Instance - $i: Down"
else
echo "Oracle Instance - $i: Up"
fi
done;
}|tee -a ${LOG_FILE} 2>&1
# ------------------------
# Send Email
# ------------------------
cnt=`cat $LOG_FILE | grep Down | wc -l`
if [ "$cnt" -gt 0 ]; then
$MAILPATH/sendEmail -f [email protected] -t $DBALIST -u "Instance status on `hostname`" -o message-file=$LOG_FILE
fi
# ------------------------------------------------
# Removing files older than $RETENTION parameter
# ------------------------------------------------
find ${LOG_DIR} -name "ck_inst*.*" -mtime +$RETENTION -exec rm {} \;
exit
robin@SZDB:~/dba_scripts/custom/bin> ./ck_inst.sh
Fri Feb 1 15:10:41 CST 2013
Oracle Database(s) Status on SZDB
-----------------------------------------
Oracle Instance - CNBO1: Up
Oracle Instance - CNBOTST: Down
Oracle Instance - CNMMBO: Up
Oracle Instance - MMBOTST: Up
Oracle Instance - CNMMBOBK: Down
Oracle Instance - CI8960U: Up
Oracle Instance - CNBO2: Up
Feb 01 15:10:41 szdb sendEmail[16024]: Email was sent successfully!
2、补充
a、上面的脚本根据/etc/oratab中列出的实例进行监控,可以监控多个实例。
b、变量X_DB用于排除那些不需要监控的实例,如脚本中排出了3个实例。也可以将该变量置空。
c、如果X_DB的值为空时,我们赋予了DUMMY,确保你的数据库实例名没有使用DUMMY,否则过滤不掉。
d、监控脚本在监控过程中只要有一个实例宕掉,则发送整个监控报告。
e、尾部清除监控过程中产生的保留日期之前的日志。