mysql自动化（全量+增量）备份脚本
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#!/bin/bash #At Sunday, we will backup the completed databases and the incresed binary log during Saturday to Sunday. #In other weekdays, we only backup the increaing binary log at that day! ################################ #the globle variables for mysql# ################################ DB_USER=‘root‘ DB_PASSWORD=‘123456‘ DB_PORT=‘3306‘ BACKUPDIR=‘/tmp/mysqlbakup‘ BACKUPDIR_OLDER=‘/tmp/mysqlbakup_older‘ DB_PID=‘/data/mysql/log/mysqld.pid‘ LOG_DIR=‘/data/mysql/log‘ BACKUP_LOG=‘/tmp/mysqlbakup/backup.log‘ DB_BIN=‘/usr/local/mysql/bin‘ #time variables for completed backup FULL_BAKDAY=‘Sunday‘ TODAY=`date +%A` DATE=`date +%Y%m%d` ########################### #time variables for binlog# ########################### #liftcycle for saving binlog DELETE_OLDLOG_TIME=$(date "-d 14 day ago" +%Y%m%d%H%M%S) #The start time point to backup binlog, the usage of mysqlbinlog is --start-datetime、--stop-datetime, time format is %Y%m%d%H%M%S, eg:20170502171054, time zones is [start-datetime, stop-datetime) #The date to start backup binlog is yesterday at this very moment! START_BACKUPBINLOG_TIMEPOINT=$(date "-d 1 day ago" +"%Y-%m-%d %H:%M:%S") BINLOG_LIST=`cat /data/mysql/log/mysql-bin.index` ############################################## #Judge the mysql process is running or not. # #mysql stop return 1, mysql running return 0.# ############################################## function DB_RUN(){ if test -a $DB_PID;then return 0 else return 1 fi } ################################################################################################### #Judge the bacup directory is exsit not. # #If the mysqlbakup directory was exsited, there willed return 0. # # If there is no a mysqlbakup directory, the fuction will create the directory and return value 1.# ################################################################################################### function BACKDIR_EXSIT(){ if test -d $BACKUPDIR;then echo "$BACKUPDIR is exist" return 0 else echo "$BACKUPDIR is not exist, now create it" mkdir -pv $BACKUPDIR return 1 fi } ################################################### #The full backup for all Databases # #This function is use to backup the all databases.# ################################################### function FULL_BAKUP(){ echo "At `date +%D\ %T`, starting backup the MySQL DB ... " rm -fr $BACKUPDIR/db_fullbak_$DATE.sql #for test !! $DB_BIN/mysqldump --lock-all-tables --flush-logs --master-data=2 -u$DB_USER -p$DB_PASSWORD -P$DB_PORT -A |gzip > $BACKUPDIR/db_fullbak_$DATE.sql.gz FULL_HEALTH=`echo $?` if [[ $FULL_HEALTH == 0 ]];then echo "At `$(date +"%y-%m-%d %H:%M:%S")`, MySQL DB full backup successfully!" else echo "MySQL DB full backup failed!" fi } #python # >>> with open(‘/data/mysql/log/mysql-bin.index‘,‘r‘) as obj: # ... for i in obj: # ... print os.path.basename(i) # ... # mysql-bin.000006 # mysql-bin.000007 # mysql-bin.000008 # mysql-bin.000009 function INCREASE_BAKUP(){ echo "At `date +%D\ %T`, starting backup the MySQL DB ... " $DB_BIN/mysqladmin -u$DB_USER -p$DB_PASSWORD -P$DB_PORT flush-logs $DB_BIN/mysql -u$DB_USER -p$DB_PASSWORD -P$DB_PORT -e "purge master logs before ${DELETE_OLDLOG_TIME}" for i in $BINLOG_LIST do $DB_BIN/mysqlbinlog -u$DB_USER -p$DB_PASSWORD -P$DB_PORT --start-datetime="$START_BACKUPBINLOG_TIMEPOINT" $i |gzip >> $BACKUPDIR/db_daily_$DATE.sql.gz done # $DB_BIN/mysqlbinlog -u$DB_USER -p$DB_PASSWORD -P$DB_PORT --start-datetime="$START_BACKUPBINLOG_TIME" $LOG_DIR/mysql-bin.[0-9]* |gzip >> $BACKUPDIR/db_daily_$DATE.sql.gz INCREASE_HEALTH=`echo $?` if [[ $INCREASE_HEALTH == 0 ]];then echo "At `$(date +"%y-%m-%d %H:%M:%S")`, MySQL DB incresed backup successfully!" else echo "MySQL DB incresed backup failed!" fi } function BAKUP_CLEANER(){ if test -d $BACKUPDIR_OLDER;then echo "$BACKUPDIR_OLDER is exist" # return 0 else echo "$BACKUPDIR_OLDER is not exist, now create it" mkdir -pv $BACKUPDIR_OLDER # return 1 fi find $BACKUPDIR -name "*.sql.gz" -mtime +7 -exec mv {} $BACKUPDIR_OLDER \; # find $BACKUPDIR_OLDER -name "*.sql.gz" -mtime +14 -exec rm -fr {} \; } #################################### #--------------main----------------# #################################### function MAIN(){ DB_RUN Run_process=`echo $?` if [[ $Run_process == 0 ]];then echo "-----------START------------" echo $(date +"%y-%m-%d %H:%M:%S") echo "-----------------------" if [[ $TODAY == $FULL_BAKDAY ]];then echo "Start completed bakup ..." BACKDIR_EXSIT FULL_BAKUP #full backup to all DB INCREASE_BAKUP else echo "Start increaing bakup ..." BACKDIR_EXSIT INCREASE_BAKUP fi BAKUP_CLEANER echo "-----------------------" echo $(date +"%y-%m-%d %H:%M:%S") echo "-----------END------------" else echo "MySQL is stopped, the db can not be bacuped!" fi } #starting runing MAIN >> $BACKUP_LOG
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