共計 3926 個字符,預計需要花費 10 分鐘才能閱讀完成。
本篇內容介紹了“mysql 的備份腳本分享”的有關知識,在實際案例的操作過程中,不少人都會遇到這樣的困境,接下來就讓丸趣 TV 小編帶領大家學習一下如何處理這些情況吧!希望大家仔細閱讀,能夠學有所成!
#!/bin/bash
#################################################################
# #
# Purpose: MySQL backups #
# This script does a full or incremental backup #
# The full is done via mysqldump#
# The incremental is done via flush-logs option #
# with mysqladmin#
# #
# The script is also setup to email if a #
# failure occurs #
# #
# Assumptions: #
# 1. Database is in Binary Update Log mode #
# 2. The variables are set correctly #
#Usage:mysql_backup [full|incremental]#
# #
#################################################################
#################################################################
# INITILIAZE VARIABLES #
#################################################################
# Set the mode, full|incremental
# parameter is passed in
MODE=$1
# set the username to connect to mysql for the backup
MYSQLUSER=backup
# set the password to connect to mysql for the backup
MYSQLUSERPW=password
# set the Binary Update Logs Path
BINLOGPATH=/mysql/logs/emds01/mysql
# Set the binary Update Logs name
BINLOGNAME=viper2-bin
# set the backup path
BACKUPPATH=/export/home/mysql/backups
# set the email address for errors to be emailed to
EMAIL_ADDR=shenandoah.speers@cicadacorp.com
# set the log file
LOGFILE=$BACKUPPATH/logs/$HOSTNAME_$RUNDATE.log
# set the error log file
LOGERR=$BACKUPPATH/logs/ERRORS_$HOSTNAME_$RUNDATE.log
# set the number of days to keep the backups
DAYSTOKEEP=5
# set Run date
RUNDATE=`date +%Y%m%d%s`
# set hostname
HOSTNAME=`uname -n`
#################################################################
# GLOBAL FUNCTIONS #
#################################################################
copyBinlogs() {
# copy binlogs to backup dir
echo Copying binlogs
for FILE in `cat $BINLOGPATH/$BINLOGNAME.index`
SFILE=(${FILE/*//})
echo - binlog $SFILE
cp $FILE $BACKUPPATH/$SFILE_$RUNDATE
gzip $BACKUPPATH/$SFILE_$RUNDATE
removeOldBackups() {
# remove old backups
echo Removing old backups greater then $DAYSTOKEEP days
find $BACKUPPATH -type f -mtime +$DAYSTOKEEP -name *.gz -print -exec rm {} ;
find $BACKUPPATH/logs -type f -mtime +$DAYSTOKEEP -name *.log -print -exec rm {} ;
startlog() {
# IO redirection for logging
touch $LOGFILE
exec 6 1 # Link file descriptor #6 with stdout.
# Saves stdout.
exec $LOGFILE # stdout replaced with file $LOGFILE.
touch $LOGERR
exec 7 2 # Link file descriptor #7 with stderr.
# Saves stderr.
exec 2 $LOGERR # stderr replaced with file $LOGERR.
stoplog() {
#Clean up IO redirection
exec 1 6 6 - # Restore stdout and close file descriptor #6.
exec 1 7 7 - # Restore stdout and close file descriptor #7.
#################################################################
# START OF MAIN #
#################################################################
case $MODE in
full )
# Daily backup
# - copy all bin logs to backup directory
# - remove old backups and logs
startlog;
echo Start Mysql Daily backup `date +%c`
mysqldump -u $MYSQLUSER -p$MYSQLUSERPW --single-transaction --flush-logs --master-data=2
--all-databases --delete-master-logs | gzip $BACKUPPATH/$HOSTNAME_full_$RUNDATE.sql.gz
copyBinlogs;
removeOldBackups;
echo Finish Mysql Daily backup `date +%c`
stoplog;
email;
incremental )
# hourly backup
# - flush logs
# - copy all bin logs to backup directory if not already done
echo Start Mysql hourly backup `date +%c`
startlog;
mysqladmin -u $MYSQLUSER -p$MYSQLUSERPW flush-logs
copyBinlogs;
echo Finish Mysql hourly backup `date +%c`
stoplog;
echo Usage: mysql_backup [full|incremental]
# email any errors encountered
if [ -s $LOGERR ]
cat $LOGERR | mail -s ERRORS REPORTED: MySQL Backup error Log for $HOSTNAME - $RUNDATE $EMAIL_ADDR
cat $LOGFILE | mail -s MySQL Backup Log for $HOSTNAME - $RUNDATE $EMAIL_ADDR
STATUS=1
STATUS=0
exit $STATUS
#################################################################
# END OF MAIN #
#################################################################
“mysql 的備份腳本分享”的內容就介紹到這里了,感謝大家的閱讀。如果想了解更多行業相關的知識可以關注丸趣 TV 網站,丸趣 TV 小編將為大家輸出更多高質量的實用文章!
正文完
發表至: 數據庫
2023-07-28