58 lines
2.0 KiB
Bash
Executable File
58 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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currentTime=$(date +"%Y-%m-%d-%H")
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userName=$1
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password=$2
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dbName=$3
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host=$4
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# 定义备份文件存放目录
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backUpPath=$5
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ossPath=$6
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# 获取上次备份的binlog文件名和位置
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LAST_BACKUP=$(cat "$backUpPath/last_backup.txt")
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LAST_BINLOG=$(echo "$LAST_BACKUP" | awk '{print $1}')
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LAST_POSITION=$(echo "$LAST_BACKUP" | awk '{print $2}')
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# 如果是第一次运行，设置初始值
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# 获取当前binlog文件名和位置
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CURRENT_BINLOG=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS" | awk '{print $1}')
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CURRENT_POSITION=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS" | awk '{print $2}')
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if [[ -z "$LAST_BACKUP" ]]; then
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LAST_BINLOG="ON.000001"
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LAST_POSITION="0"
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fi
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echo ""
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echo current_binlog $CURRENT_BINLOG
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echo current_binPostition $CURRENT_POSITION
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# 备份增量变更到文件
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# 如果上次备份的binlog文件名和位置为空，则进行全量备份
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cd $backUpPath
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#if [ -z "$LAST_BINLOG" ]; then
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# mysqldump -u $MYSQL_USER -p$MYSQL_PASSWORD -h $MYSQL_HOST $MYSQL_DATABASE > "$BACKUP_DIR/full_backup.sql"
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#else
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echo "docker exec maria /usr/bin/mysqlbinlog -u"${userName}" -p"${password}" -h"${host}" --start-position="${LAST_POSITION}" --stop-position="${CURRENT_POSITION}" "$LAST_BINLOG" > "${backUpPath}"/"${dbName}"-"${currentTime}".sql"
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docker exec maria /usr/bin/mysqlbinlog -u${userName} -p${password} -h${host} --start-position=${LAST_POSITION} --stop-position=${CURRENT_POSITION} /var/lib/mysql/$LAST_BINLOG > ${backUpPath}/${dbName}-incremental-${currentTime}.sql
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#fi
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# 更新上次备份的binlog文件名和位置
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echo "$CURRENT_BINLOG $CURRENT_POSITION" > "last_backup.txt"
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backup_files=()
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find "$backUpPath" -name "${backUpPath}/${dbName}-incremental-*.sql.gz" -type f -print0 | while IFS= read -r -d '' file; do
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file_date=$(stat -c %Y "$file")
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current_time=$(date +%s)
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if (( (current_time - file_date) > 86400 )); then
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backup_files+=("$file")
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fi
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done
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# 遍历数组，打印每个文件名
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for file in "${backup_files[@]}"; do
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echo "$file"
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done
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