#!/bin/bash
INNOBACKUPEXFULL="/usr/bin/innobackupex"
MYSQL_CMD=' --socket=/ssd/mysql/3346/tmp/mysql.sock --user=root --password=mysqlpassword --port=3346'
MYSQL_UP=' --user=root --password=mysqlpassword --port=3346 ' #mysqladmin的用戶名和密碼
TMPLOG="/data/tmp/innobackupex.$$.log"
MY_CNF="/usr/local/mysql/mysql3346.cnf" #mysql的配置文件
TMP_DIR=/data/backup_tmp
MYSQL=/usr/local/mysql/bin/mysql
MYSQL_ADMIN=/usr/local/mysql/bin/mysqladmin
BACKUP_DIR=/data/backup # 備份的主目錄
FULLBACKUP_DIR=$BACKUP_DIR/full # 全庫備份的目錄
INCRBACKUP_DIR=$BACKUP_DIR/incre # 增量備份的目錄
FULLBACKUP_INTERVAL=86400 # 全庫備份的間隔周期，時間：秒
KEEP_FULLBACKUP=1 # 至少保留幾個全庫備份
logfiledate=/data/backup/backup.`date +%Y%m%d%H%M`.txt
#開始時間
STARTED_TIME=`date +%s`#############################################################################
# 顯示錯誤并退出
#############################################################################
error()
{echo "$1" 1>&2exit 1
}
# 檢查執行環境
if [ ! -x $INNOBACKUPEXFULL ]; thenerror "$INNOBACKUPEXFULL未安裝或未鏈接到/usr/bin."
fiif [ ! -d $BACKUP_DIR ]; thenerror "備份目標文件夾:$BACKUP_DIR不存在."
fimysql_status=`netstat -nl | awk 'NR>2{if ($4 ~ /.*:3346/) {print "Yes";exit 0}}'`
if [ "$mysql_status" != "Yes" ];thenerror "MySQL 沒有啟動運行."
fiif ! `echo 'exit' | $MYSQL -s $MYSQL_CMD` ; thenerror "提供的數據庫用戶名或密碼不正確!"
fi# 備份的頭部信息
echo "----------------------------"
echo
echo "$0: MySQL備份腳本"
echo "開始于: `date +%F' '%T' '%w`"
echo#新建全備和差異備份的目錄
mkdir -p $FULLBACKUP_DIR
mkdir -p $INCRBACKUP_DIR#查找最新的完全備份
LATEST_FULL_BACKUP=`find $FULLBACKUP_DIR -mindepth 1 -maxdepth 1 -type d -printf "%P\n" | sort -nr | head -1`# 查找最近修改的最新備份時間
#########m by sk 將文件目錄改成時間"2017-10-01_02-02-02"
#先轉成TEMPSTR "2017-10-01 02:02:02"
#LATEST_FULL_BACKUP_CREATED_TIME=`stat -c %Y $FULLBACKUP_DIR/$LATEST_FULL_BACKUP`
TEMPSTR=`echo "$LATEST_FULL_BACKUP" | sed "s/_/ /"|sed "s/-/:/3g"`
LATEST_FULL_BACKUP_CREATED_TIME=`date +%s -d "$TEMPSTR"`
#########
#如果全備有效進行增量備份否則執行完全備份
if [ "$LATEST_FULL_BACKUP" -a `expr $LATEST_FULL_BACKUP_CREATED_TIME + $FULLBACKUP_INTERVAL - 300` -ge $STARTED_TIME ] ; then# 如果最新的全備未過期則以最新的全備文件名命名在增量備份目錄下新建目錄echo -e "完全備份$LATEST_FULL_BACKUP未過期,將根據$LATEST_FULL_BACKUP名字作為增量備份基礎目錄名"echo " "NEW_INCRDIR=$INCRBACKUP_DIR/$LATEST_FULL_BACKUPmkdir -p $NEW_INCRDIR# 查找最新的增量備份是否存在.指定一個備份的路徑作為增量備份的基礎LATEST_INCR_BACKUP=`find $NEW_INCRDIR -mindepth 1 -maxdepth 1 -type d -printf "%P\n" | sort -nr | head -1`if [ ! $LATEST_INCR_BACKUP ] ; thenINCRBASEDIR=$FULLBACKUP_DIR/$LATEST_FULL_BACKUPecho -e "增量備份將以$INCRBASEDIR作為備份基礎目錄"echo " "elseINCRBASEDIR=$INCRBACKUP_DIR/${LATEST_FULL_BACKUP}/${LATEST_INCR_BACKUP}echo -e "增量備份將以$INCRBASEDIR作為備份基礎目錄"echo " "fiecho "使用$INCRBASEDIR作為基礎本次增量備份的基礎目錄."$INNOBACKUPEXFULL --defaults-file=$MY_CNF --encrypt=AES256 --encrypt-key=jiamistring --encrypt-threads=5 --use-memory=4G $MYSQL_CMD --incremental --parallel=4 --no-lock --safe-slave-backup --slave-info --tmpdir=$TMP_DIR $NEW_INCRDIR --incremental-basedir $INCRBASEDIR > $TMPLOG 2>&1#保留一份備份的詳細日志cat $TMPLOG>$logfiledateif [ -z "`tail -1 $TMPLOG | grep 'innobackupex: completed OK!'`" ] ; thenecho "$INNOBACKUPEX命令執行失敗:"; echoecho -e "---------- $INNOBACKUPEX_PATH錯誤 ----------"cat $TMPLOGrm -f $TMPLOGexit 1fiTHISBACKUP=`awk -- "/Backup created in directory/ { split( \\\$0, p, \"'\" ) ; print p[2] }" $TMPLOG`##add by skecho "skmsize:`du -sm $THISBACKUP | awk '{print $1}'`">>$logfiledate##rm -f $TMPLOGecho -n "數據庫成功備份到:$THISBACKUP"xbcrypt -d --encrypt-key=jiamistring --encrypt-algo=AES256 -i $THISBACKUP/xtrabackup_checkpoints.xbcrypt -o $THISBACKUP/xtrabackup_checkpointsecho# 提示應該保留的備份文件起點LATEST_FULL_BACKUP=`find $FULLBACKUP_DIR -mindepth 1 -maxdepth 1 -type d -printf "%P\n" | sort -nr | head -1`NEW_INCRDIR=$INCRBACKUP_DIR/$LATEST_FULL_BACKUPLATEST_INCR_BACKUP=`find $NEW_INCRDIR -mindepth 1 -maxdepth 1 -type d -printf "%P\n" | sort -nr | head -1`RES_FULL_BACKUP=${FULLBACKUP_DIR}/${LATEST_FULL_BACKUP}RES_INCRE_BACKUP=`dirname ${INCRBACKUP_DIR}/${LATEST_FULL_BACKUP}/${LATEST_INCR_BACKUP}`echoecho -e '\e[31m NOTE:---------------------------------------------------------------------------------.\e[m' #紅色echo -e "必須保留$KEEP_FULLBACKUP份全備即全備${RES_FULL_BACKUP}和${RES_INCRE_BACKUP}目錄中所有增量備份."echo -e '\e[31m NOTE:---------------------------------------------------------------------------------.\e[m' #紅色echo
elseecho "*********************************"echo -e "正在執行全新的完全備份...請稍等..."echo "*********************************"$INNOBACKUPEXFULL --defaults-file=$MY_CNF --encrypt=AES256 --encrypt-key=jiamistring --encrypt-threads=5 --use-memory=4G --no-lock --safe-slave-backup --parallel=4 --tmpdir=$TMP_DIR --slave-info $MYSQL_CMD $FULLBACKUP_DIR > $TMPLOG 2>&1 #保留一份備份的詳細日志cat $TMPLOG>$logfiledateif [ -z "`tail -1 $TMPLOG | grep 'innobackupex: completed OK!'`" ] ; thenecho "$INNOBACKUPEX命令執行失敗:"; echoecho -e "---------- $INNOBACKUPEX_PATH錯誤 ----------"cat $TMPLOGrm -f $TMPLOGexit 1fiTHISBACKUP=`awk -- "/Backup created in directory/ { split( \\\$0, p, \"'\" ) ; print p[2] }" $TMPLOG`##add by skecho "skmsize:`du -sm $THISBACKUP | awk '{print $1}'`">>$logfiledate##rm -f $TMPLOGecho -n "數據庫成功備份到:$THISBACKUP"xbcrypt -d --encrypt-key=jiamistring --encrypt-algo=AES256 -i $THISBACKUP/xtrabackup_checkpoints.xbcrypt -o $THISBACKUP/xtrabackup_checkpointsecho# 提示應該保留的備份文件起點LATEST_FULL_BACKUP=`find $FULLBACKUP_DIR -mindepth 1 -maxdepth 1 -type d -printf "%P\n" | sort -nr | head -1`RES_FULL_BACKUP=${FULLBACKUP_DIR}/${LATEST_FULL_BACKUP}echoecho -e '\e[31m NOTE:---------------------------------------------------------------------------------.\e[m' #紅色echo -e "無增量備份,必須保留$KEEP_FULLBACKUP份全備即全備${RES_FULL_BACKUP}."echo -e '\e[31m NOTE:---------------------------------------------------------------------------------.\e[m' #紅色echofi#刪除過期的全備
echo -e "find expire backup file...........waiting........."
echo -e "尋找過期的全備文件并刪除">>$logfiledate
#for efile in $(/usr/bin/find $FULLBACKUP_DIR/ -mtime +7)
##do
## if [ -d ${efile} ]; then
# rm -rf "${efile}"
# echo -e "刪除過期全備文件:${efile}" >>$logfiledate
# elif [ -f ${efile} ]; then
# rm -rf "${efile}"
# echo -e "刪除過期全備文件:${efile}" >>$logfiledate
# fi;
#
#done
cd $FULLBACKUP_DIR
/usr/bin/find -maxdepth 1 -type d -mtime +5|xargs rm -fr
if [ $? -eq "0" ];thenechoecho -e "未找到可以刪除的過期全備文件"
fi
echo
echo "完成于: `date +%F' '%T' '%w`"cd $INCRBACKUP_DIR
/usr/bin/find -maxdepth 1 -type d -mtime +5|xargs rm -fr
if [ $? -eq "0" ];thenechoecho -e "未找到可以刪除的過期增量備份文件"
fi
echo
echo "完成于: `date +%F' '%T' '%w`"
exit 0
