first commit
This commit is contained in:
Yavuz Aydın
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423f55408f
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#!/bin/bash
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##############################################################################################
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# #
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# 88 #
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# 88 #
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# 88 #
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# ,adPPYba, 8b,dPPYba, ,adPPYba, 88 ,adPPYba, ,adPPYba, 88,dPYba,,adPYba, #
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# I8[ "" 88P' `"8a a8P_____88 88 a8" "" a8" "8a 88P' "88" "8a #
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# `"Y8ba, 88 88 8PP""""""" 88 8b 8b d8 88 88 88 #
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# aa ]8I 88 88 "8b, ,aa 88 888 "8a, ,aa "8a, ,a8" 88 88 88 #
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# `"YbbdP"' 88 88 `"Ybbd8"' 88 888 `"Ybbd8"' `"YbbdP"' 88 88 88 #
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# #
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# #
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##############################################################################################
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# #
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# Author: Snel.com - Yavuz Aydin #
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# E-mail: support@snel.com #
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# (c) Snel.com - all rights reserved #
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# #
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##############################################################################################
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# #
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# Script: backup_mysql.sh #
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# License: This file is licensed under the GPLv3 License #
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# Purpose: Create local MySQL backups #
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# #
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##############################################################################################
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# #
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# Changelog: #
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# #
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##############################################################################################
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# #
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# 2019/01/21 1.5 Fixed creation of databases with dot (.) in name #
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# 2018/02/11 1.4 Fixed detection of mydumper #
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# 2017/11/09 1.3 Fixed multiple backups on a day support #
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# 2017/07/23 1.2 Added mydumper / myloader support #
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# 2016/02/19 1.1 Added --events to suppress warning #
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# 2016/02/06 1.0 First release #
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# #
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##############################################################################################
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# #
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# Restore #
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# #
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##############################################################################################
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# #
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# Assuming you want to restore mytestdb from your backups made on 20190121-1540: #
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# #
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# mysqldump: #
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# #
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# DB='mytestdb' #
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# BACKUPDIR='/var/backup/mysql/20190121-1540' #
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# mysql -e "CREATE DATABASE ${DB}" #
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# cd ${BACKUPDIR}/${DB} #
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# for table in *; do gunzip -c $table | mysql ${DB}; done #
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# #
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# With myloader (backups should have been created with mydumper): #
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# #
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# DB='mytestdb' #
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# BACKUPDIR='/var/backup/mysql/20190121-1540' #
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# myloader --directory=${BACKUPDIR}/ --overwrite-tables -s ${DB} #
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# #
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##############################################################################################
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# #
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# CONFIGURATION #
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# #
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##############################################################################################
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# Get list of Databases except the pid file
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DBS_LIST=$(mysql -s -N -e "show databases;")
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# Log file
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BAKUP_LOG=/var/backup/log/mysql-backup.log
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# Backup Base directory
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BASE_BAK_FLDR=/var/backup/mysql
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# Backup rotation period.
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RM_FLDR_DAYS="+30"
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##############################################################################################
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# #
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# DO NOT EDIT BELOW THIS #
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# #
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##############################################################################################
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USE_MYDUMPER=0
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which mydumper &> /dev/null
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if [ "$?" == "0" ]; then
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MYDUMPER=$(which mydumper)
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USE_MYDUMPER=1
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fi
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index=0
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# Check if we can connect to the mysql server; otherwise die
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if [ ! "$(id -u -n)" = "root" ]; then
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echo -e "Error:: $0 : Only user 'root' can run this script"
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exit 100
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fi
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PING=$(mysqladmin ping 2>/dev/null)
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if [ "$PING" != "mysqld is alive" ]; then
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echo "Error:: Unable to connected to MySQL Server, exiting !!"
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exit 101
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fi
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# Backup process starts here.
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START_DATETIME=$(date +%Y%m%d-%H%M)
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# Flush logs prior to the backup.
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mysql -e "FLUSH LOGS"
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if [ $USE_MYDUMPER -eq 1 ]; then
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# Use mydumper
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DB_BKP_FLDR=$BASE_BAK_FLDR/${START_DATETIME}
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[ ! -d $DB_BKP_FLDR ] && mkdir -p $DB_BKP_FLDR && chmod 700 $DB_BKP_FLDR
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$MYDUMPER -o $DB_BKP_FLDR -G -E -R --less-locking -r 500000 -c -e -L $DB_BKP_FLDR/mydumper.log -v 3
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else
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# Use traditional mysqldump
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# Loop through the DB list and create table level backup,
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# applying appropriate option for MyISAM and InnoDB tables.
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for DB in $DBS_LIST; do
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DB_BKP_FLDR=$BASE_BAK_FLDR/${START_DATETIME}/$DB
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[ ! -d $DB_BKP_FLDR ] && mkdir -p $DB_BKP_FLDR && chmod 700 $DB_BKP_FLDR
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# Get the schema of database with the stored procedures.
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# This will be the first file in the database backup folder
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mysqldump -R -d --single-transaction $DB | gzip -c > $DB_BKP_FLDR/000-DB_SCHEMA.sql.gz
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index=0
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#Get the tables and its type. Store it in an array.
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table_types=($(mysql -e "show table status from $DB" | awk '{ if ($2 == "MyISAM" || $2 == "InnoDB") print $1,$2}'))
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table_type_count=${#table_types[@]}
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# Loop through the tables and apply the mysqldump option according to the table type
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# The table specific SQL files will not contain any create info for the table schema.
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# It will be available in SCHEMA file
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while [ "$index" -lt "$table_type_count" ]; do
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START=$(date +%s)
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TYPE=${table_types[$index + 1]}
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table=${table_types[$index]}
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#echo -en "$(date) : backup $DB : $table : $TYPE "
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if [ "$TYPE" = "MyISAM" ]; then
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DUMP_OPT="$DB --no-create-info --tables --events --quote-names "
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else
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DUMP_OPT="$DB --no-create-info --single-transaction --tables --events --quote-names "
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fi
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mysqldump $DUMP_OPT $table |gzip -c > $DB_BKP_FLDR/$table.sql.gz
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index=$(($index + 2))
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#echo -e " - Total time : $(($(date +%s) - $START))\n"
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done
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done
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fi
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# Rotating old backup. according to the 'RM_FLDR_DAYS'
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if [ ! -z "$RM_FLDR_DAYS" ]; then
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#echo -en "$(date) : removing folder : "
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find $BASE_BAK_FLDR/ -maxdepth 1 -mtime $RM_FLDR_DAYS -type d -exec rm -rf {} \;
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#echo
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fi
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