Xtrabackup的安装使用,自动化备份脚本

XtraBackup是Percona公司的开源项目，用以实现类似Innodb官方的热备份工具InnoDB Hot Backup的功能，它支持在线热备份(备份时不影响数据读写)。到目前为止，最新的版本为Percona XtraBackup 2.4.7.

XtraBackup有很多功能和优点：例如支持全备、增量备份、部分备份；支持压缩备份；备份不影响数据读写、事务等，但是也有缺陷不足：例如不支持脱机备份、不支持直接备份到磁带设备、不支持Cloud Back，MyISAM的备份也会阻塞。不过这些小瑕疵不影响XtraBackup成为一款流行的MySQL备份工具。另外，请注意XtraBackup只支持Linux平台，不支持Windows平台。

一．  安装

参考链接：http://www.cnblogs.com/kerrycode/p/6933024.html

 

#下载对应软件包 cd /usr/local/src/ wget https://www.percona.com/downloads/XtraBackup/Percona-XtraBackup-2.4.9/binary/tarball/percona-xtrabackup-2.4.9-Linux-x86_64.tar.gz    #解压并重命名 tar -zxvf percona-xtrabackup-2.4.9-Linux-x86_64.tar.gz -C /usr/local cd .. &&  mv percona-xtrabackup-2.4.9-Linux-x86_64/   xtrabackup   #设置环境变量并生效 echo "export PATH=\$PATH:/usr/local/xtrabackup/bin" >> /etc/profile source /etc/profile

 

二．  使用说明

参考链接：https://www.cnblogs.com/zhoujinyi/p/5893333.html

             

                      

三．  自动化压缩备份脚本

#!/bin/bash #innobackupex 增量备份脚本 ##################################################################################       BACKUP_DATE=$(date +%Y-%m-%d_%H_%M_%S) BACKUP_DIR=/data/mysql/backup FULLBACKUP_PATH=$BACKUP_DIR/full INCRBACKUP_PATH=$BACKUP_DIR/incr BACKUP_LOG_PATH=$BACKUP_DIR/logs BACKUP_KEEP_DAY=7 MYSQL_CONF=/etc/my.cnf INNOBACKUPEX=/usr/local/xtrabackup/bin/innobackupex MYSQL_CMD=/usr/bin/mysql MYSQL_CONNECT="--host=****--user=**** --password=**** --port=3306" MAIL_FROM="root@`hostname`" MAIL_TO="linge@hz-health.cn" MAIL_TO_ERROR="linge@hz-health.cn"   error() {  echo "$1" 1>&2  exit 1 }   #before the backup, check the system enviroment setting and mysql status and so on mysql_backup_check() {       if [ ! -d $FULLBACKUP_PATH ];then         mkdir -p $FULLBACKUP_PATH     fi       if [ ! -d $INCRBACKUP_PATH ];then         mkdir -p $INCRBACKUP_PATH     fi       if [ ! -d $BACKUP_LOG_PATH ];then         mkdir -p $BACKUP_LOG_PATH     fi         if [ ! -x $INNOBACKUPEX ];then        error "$INNOBACKUPEX did not exists"     fi       if [ ! -x $MYSQL_CMD ];then        error "mysql client did not exists!"     fi        mysql_status=`netstat -nl | awk 'NR>2{if ($4 ~ /.*:3306/) {print "Yes";exit 0}}'`           if [ "$mysql_status" != "Yes" ];then           error "MySQL did not start. please check it"         fi           if ! `echo 'exit' | $MYSQL_CMD -s $MYSQL_CONNECT` ; then          error "please check the user and password is correct!"         fi }     xtra_backup() {   if [ $# = 2 ];then         $INNOBACKUPEX --defaults-file=$MYSQL_CONF $MYSQL_CONNECT  --compress --compress-threads=8 --databases="yjk  yjk_mall_2_0" --no-timestamp  $1/full_$BACKUP_DATE>$2 2>&1   elif [ $# = 3 ];then         $INNOBACKUPEX  --defaults-file=$MYSQL_CONF $MYSQL_CONNECT --compress --compress-threads=8 --databases="yjk  yjk_mall_2_0" --no-timestamp --incremental  $1/incr_$BACKUP_DATE  --incremental-basedir $2 >$3 2>&1   else       error "the parameter is not correct"   fi }     lastest_fullback_dir() {     if [ -d $1 ]; then         path=`ls -t $1 |head -n 1`         if [  $path ]; then             echo $path         else             error "lastest_fullback_dir(): 目录为空,没有最新目录"         fi     else         error "lastest_fullback_dir(): 目录不存在或者不是目录"     fi }     mysql_full_backup() {     xtra_backup  $FULLBACKUP_PATH $BACKUP_LOG_PATH/full_$BACKUP_DATE.log       if [ "${PIPESTATUS[0]}" -ne 0 ]; then         (echo "Subject: MySQL Backup Failed: MySQL Backup failed on `hostname`";       cat ${BACKUP_LOG_PATH}/full_${BACKUP_DATE}.log;     ) | /usr/sbin/sendmail -O NoRecipientAction=add-to -f${MAIL_FROM} ${MAIL_TO}     else       (echo "Subject: MySQL Backup Success: MySQL Backup Succeed on `hostname`";       cat ${BACKUP_LOG_PATH}/full_${BACKUP_DATE}.log;     ) | /usr/sbin/sendmail -O NoRecipientAction=add-to -f${MAIL_FROM} ${MAIL_TO}     fi         #cd $FULLBACKUP_PATH       #ls -t | tail -n +$BACKUP_KEEP_DAY | xargs rm -rf     find ${FULLBACKUP_PATH}  -mtime +$BACKUP_KEEP_DAY -name "*" -exec rm -rf {} \; }   mysql_incr_backup() {     LATEST_FULL_BACKUP=`find $FULLBACKUP_PATH -mindepth 1 -maxdepth 1 -type d -printf "%P\n" | sort -nr | head -1`     LATEST_FULL_BACKUP_TIME=`stat -c %Y $FULLBACKUP_PATH/$LATEST_FULL_BACKUP`     if [ $LATEST_FULL_BACKUP ];then         #不是第一次增量备份，以最新的增量备份目录为base_dir         xtra_backup $INCRBACKUP_PATH  $FULLBACKUP_PATH/`lastest_fullback_dir $FULLBACKUP_PATH`  $BACKUP_LOG_PATH/incr_$BACKUP_DATE.log   else         # the first incremental backup need do full backup first          xtra_backup $FULLBACKUP_PATH  $BACKUP_LOG_PATH/full_$BACKUP_DATE.log            if [ "${PIPESTATUS[0]}" -ne 0 ]; then                         (echo "Subject: MySQL Backup Failed: MySQL Backup failed on `hostname`";                    cat ${BACKUP_LOG_PATH}/incr_${BACKUP_DATE}.log;                     ) | /usr/sbin/sendmail -O NoRecipientAction=add-to -f${MAIL_FROM} ${MAIL_TO}             fi   fi     #cd ${INCRBACKUP_PATH}   #ls -t | tail -n +$BACKUP_KEEP_DAY | xargs rm -rf   find ${INCRBACKUP_PATH}  -mtime +$BACKUP_KEEP_DAY -name "*" -exec rm -rf {} \;   }       case $1 in          full)           mysql_backup_check           mysql_full_backup           ;;           incr)           mysql_backup_check           mysql_incr_backup           ;;            *)           echo "full backup"           echo "incr backup"           ;; esac