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MySQL分庫備份

mysql 分庫備份 逗哥自動化運維

公司一直是全備+binlog,但是如果單個庫出現問題怎麽辦,在進行完整恢復的話,第一會耽誤時間,第二會影響其它數據庫,第三如果數據量大,對於庫的恢復也是問題,所以我提出了,除了全備,還要做分庫備份,只要更靈活,出現問題,直接恢復單庫(方便、快捷)

下面直接上腳本

1,將MySQL自帶庫外的其他庫進行備份

#!/bin/bash
#---------------------------------------------------------
# $Name:         Store_backup.sh
# $Version:      v1.0
# $Author:       邱月濤
# $organization: www.yi******.cn
# $Create Date:  2017-06-03
# $Description:  MySQL store Backup 
#用於MySQL 分庫備份,並保留30天數據
#---------------------------------------------------------
#source /etc/init.d/functions
DAY=`date +%F`
BACK_DIR="/home/backup/mysqlbackup"
DBUSER="root"
DBPASSWD="你自己的password"
BIN_PATH="/usr/bin"
LOG="/home/backup/mysqlbackup/mysqlback.log"
## Close all tables and refresh log ####
"$BIN_PATH"/mysql -u "$DBUSER" -p"$DBPASSWD" -e "flush logs"
#"$BIN_PATH"/mysql -u "$DBUSER" -p"$DBPASSWD" -e "flush tables with read lock"
echo "mysqldump start `date +%F\ %H\:%M\:%S`" >> "$LOG"
## Each backup database to the target location ####
for i in `"$BIN_PATH"/mysql -u "$DBUSER" -p"$DBPASSWD" -e "show databases" |grep -vE "Database|information_schema"`
  do
        if [ ! -d "$BACK_DIR"/"$i" ]; then
                mkdir -p  "$BACK_DIR"/"$i"
           fi
"$BIN_PATH"/mysqldump -u "$DBUSER" -p"$DBPASSWD" --default-character-set=utf8 --opt --lock-tables -f --log-error="$LOG" "$i" > "$BACK_DIR"/"$i"/"$DAY".sql
   done
echo "mysqldump stop `date +%F\ %H\:%M\:%S`" >> "$LOG"
echo "" >>"$LOG"
## Delete 30 days ago backup files ####
for RM in `"$BIN_PATH"/mysql -u "$DBUSER" -p"$DBPASSWD" -e "show databases" |grep -vE "Database|information_schema"`
   do
rm -rf "$BACK_DIR"/"$RM"/$(date +%F --date=‘30 days ago‘).sql
    done

效果如下:

[[email protected] mysqlbackup]# tree -L 1 /home/backup/mysqlbackup
/home/backup/mysqlbackup
├──  luence
├──  hpi
├──  h
├── my
├── mysql
├── mysqlback.log
├── ypp
└──  tao

將腳本加入crontab定時任務即可;

[[email protected] mysqlbackup]# crontab -l
0  4 * * * /root/shell/mysqlbackup.sh


本文出自 “逗哥筆記” 博客,請務必保留此出處http://qiuyt.blog.51cto.com/1229789/1931999

MySQL分庫備份