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Linux/Unix shell 监控Oracle实例(monitor instance)

Jun 07, 2016 pm 05:26 PM

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 实例。

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

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  : ,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="robinson.cheng@12306.com;robinson_0612@12306.com"
  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 szdb@2gotrade.com -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。

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

e、尾部清除监控过程中产生的保留日期之前的日志。

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