如何实现mysql 全量和增量备份

下面一起来了解下如何实现mysql 全量和增量备份，相信大家看完肯定会受益匪浅，文字在精不在多，希望如何实现MysqL 全量和增量备份这篇短内容是你想要的。

MysqL 全量备份：

vim /root/MysqL_bakup.sh

#!/bin/bash

#Date:2017/5/2

#Author:wangpengtai

#Blog:http://wangpengtai.blog.51cto.com

#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'

DB_SOCK='/data/MysqL/log/MysqL .sock'

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 MysqL binlog 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`

binlog_INDEX='/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 && test -a $DB_SOCK;then

return 0

else

return 1

}

###################################################################################################

#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 was exist."

return 0

else

echo "$BACKUPDIR is not exist, Now create it."

mkdir -pv $BACKUPDIR

return 1

}

###################################################################################################

#Judge the binlog is configed or 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 binlog_EXSIT(){

if test -f $binlog_INDEX;then

# echo "$BACKUPDIR was exist."

return 0

}

###################################################

#The full backup for all Databases #

#This function is use to backup the all databases.#

###################################################

function FULL_BAKUP(){

echo "At `date +%D\ %T`: Starting full 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 +%D\ %T`: MysqL DB incresed backup successfully"

else

echo "MysqL DB full backup Failed!"

}

#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 increased 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 `cat $binlog_INDEX`

$DB_BIN/MysqL binlog -u$DB_USER -p$DB_PASSWORD -P$DB_PORT --start-datetime="$start_BACKUPbinlog_TIMEPOINT" $i |gzip >> $BACKUPDIR/db_daily_$DATE.sql.gz

done

# $DB_BIN/MysqL binlog -u$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 +%D\ %T`: MysqL DB incresed backup successfully"

else

echo "MysqL DB incresed backup Failed!"

}

function OLDER_BACKDIR_EXSIT(){

if test -d $BACKUPDIR_OLDER;then

# echo "$BACKUPDIR_OLDER was exist."

return 0

else

echo "$BACKUPDIR_OLDER is not exist, Now create it."

mkdir -pv $BACKUPDIR_OLDER

# return 1

}

function BAKUP_CLEANER(){

#move the backuped file that created time out of 7 days to the BACKUPDIR_OLDER directory

returnkey=`find $BACKUPDIR -name "*.sql.gz" -mtime +7 -exec ls -lh {} \;`

returnkey_old=`find $BACKUPDIR_OLDER -name "*.sql.gz" -mtime +14 -exec ls -lh {} \;`

if [[ $returnkey != '' ]];then

echo "----------------------"

echo "Moving the older backuped file out of 7 days to $BACKUPDIR_OLDER."

echo "The moved file list is:"

find $BACKUPDIR -name "*.sql.gz" -mtime +7 -exec mv {} $BACKUPDIR_OLDER \;

echo "-----------------------"

elif [[ $returnkey_old != '' ]];then

#delete the backuped file that created time out of 14 days from BACKUPDIR_OLDER directory.

echo "Delete the older backuped file out of 14 days from $BACKUPDIR_OLDER."

echo "The deleted files list is:"

find $BACKUPDIR_OLDER -name "*.sql.gz" -mtime +14 -exec rm -fr {} \;

}

####################################

#--------------main----------------#

####################################

function MAIN(){

DB_RUN #Judge the process is run or not, if not run, the script will not bakup db

Run_process=`echo $?`

echo $?

if [[ $Run_process == 0 ]];then

binlog_EXSIT

binlog_index=`echo $?`

if [[ $binlog_index == 0 ]];then

echo "**********START**********"

echo $(date +"%y-%m-%d %H:%M:%s %A")

echo "~~~~~~~~~~~~~~~~~~~~~~~"

if [[ $TODAY == $FULL_BAKDAY ]];then

echo "Start completed bakup ..."

INCREASE_BAKUP

FULL_BAKUP #full backup to all DB

BAKUP_CLEANER

else

echo "Start increaing bakup ..."

INCREASE_BAKUP

echo "~~~~~~~~~~~~~~~~~~~~~~~"

echo $(date +"%y-%m-%d %H:%M:%s %A")

echo "**********END**********"

else

echo "**********START**********"

echo $(date +"%y-%m-%d %H:%M:%s %A")

echo "~~~~~~~~~~~~~~~~~~~~~~~"

echo "Sorry, MysqL binlog was not configed, please config the my.cnf firstly!"

echo "~~~~~~~~~~~~~~~~~~~~~~~"

echo $(date +"%y-%m-%d %H:%M:%s %A")

echo "**********END**********"

else

echo "**********START**********"

echo $(date +"%y-%m-%d %H:%M:%s %A")

echo "~~~~~~~~~~~~~~~~~~~~~~~"

echo "Sorry, MysqL was not running, the db Could not be backuped!"

echo "~~~~~~~~~~~~~~~~~~~~~~~"

echo $(date +"%y-%m-%d %H:%M:%s %A")

echo "**********END**********"

}

#starting runing

BACKDIR_EXSIT $BACKUP_LOG

OLDER_BACKDIR_EXSIT $BACKUP_LOG

MAIN >> $BACKUP_LOG

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如何实现mysql 全量和增量备份

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