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新增备份脚本backup-sync.sh和还原脚本restore-sync.sh，用于处理严重复制冲突场景 更新故障分析文档，补充全量备份还原的操作流程和注意事项 添加测试流程模板文件_TEST_FLOW_TEMPLATE.md 更新SKILL.md文档，增加测试流程分析相关内容
132 lines
4.0 KiB
Bash
132 lines
4.0 KiB
Bash
#!/bin/bash
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TAG=""
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while getopts "t:" opt; do
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case $opt in
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t) TAG="$OPTARG" ;;
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*) echo "Invalid option: -$OPTARG" >&2; exit 1 ;;
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esac
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done
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shift $((OPTIND-1))
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cd /data/backup/mysql || exit 1
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if [ -n "$TAG" ]; then
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BACKUP_DIR="./$(date +%Y%m%d%H%M%S)_${TAG}"
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else
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BACKUP_DIR="./$(date +%Y%m%d%H%M%S)"
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fi
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mkdir -p "$BACKUP_DIR"
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MYSQL_USER="root"
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MYSQL_PASSWORD="ENC(VN13kACOdhyl7xYqbgDMTMP0fK4dwoCkFe0AQW0VEt7/tpwx96GzRVY6eIpwlASM)"
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MYSQL_HOST="127.0.0.1"
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if [[ "$MYSQL_PASSWORD" =~ ^ENC\(.*\)$ ]]; then
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encrypted_pwd="${MYSQL_PASSWORD:4:-1}"
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if ! MYSQL_PASSWORD=$(java -cp /data/secure/jasypt-agent.jar com.jasypt.agent.DecryptionCLI $encrypted_pwd \
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2>&1); then
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echo -e "\033[31m[Fatal Error] Password decryption failed. Reason:"
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echo "$MYSQL_PASSWORD" | grep -iE "error|exception"
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exit 1
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fi
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fi
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# Function to execute MySQL command
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mysql_exec() {
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docker exec -i mysql mysql -u "$MYSQL_USER" -p"$MYSQL_PASSWORD" -h "$MYSQL_HOST" -N -e "$1" 2>/dev/null
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}
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# Function to restore MySQL state (called on exit)
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restore_mysql_state() {
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if [ "$READ_ONLY_SET" = "true" ]; then
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echo "Restoring MySQL state..."
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mysql_exec "SET GLOBAL read_only = OFF;" || echo "[Warning] Failed to set read_only = OFF"
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echo "MySQL state restored"
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fi
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}
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# Set trap to ensure MySQL state is restored even on error
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trap restore_mysql_state EXIT ERR
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# Pre-backup: Set read-only and stop slave
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echo "Setting MySQL to read-only mode..."
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if ! mysql_exec "SET GLOBAL read_only = ON;"; then
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echo "[Critical Error] Failed to set read_only = ON"
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exit 1
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fi
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READ_ONLY_SET="true"
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echo "Stopping slave replication..."
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if ! mysql_exec "STOP REPLICA;"; then
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echo "[Warning] Failed to stop replica (may not be a slave server or already stopped)"
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fi
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# Get GTID position using SELECT @@global.gtid_executed;
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echo "Getting GTID position..."
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GTID_EXECUTED=$(mysql_exec "SELECT @@global.gtid_executed;")
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if [ -n "$GTID_EXECUTED" ]; then
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# Remove newlines and literal \n strings
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GTID_EXECUTED=$(echo "$GTID_EXECUTED" | tr -d '\n' | sed 's/\\n//g' | tr -s ' ')
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echo "GTID Executed: $GTID_EXECUTED"
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# Write GTID to file for restore use
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echo "$GTID_EXECUTED" > "$BACKUP_DIR/gtid_executed.txt"
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else
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echo "[Warning] Failed to get GTID executed information"
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fi
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# Get database list for backup
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if [ $# -eq 0 ]; then
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# When no arguments, get all non-system databases
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databases=$(mysql_exec "SHOW DATABASES;" | grep -Ev "(Database|information_schema|performance_schema|mysql|skywalking|sys)")
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# Convert to array and check empty values
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readarray -t db_list <<< "$databases" || {
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echo "ERROR: No valid databases found or failed to retrieve database list"
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restore_mysql_state
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exit 1
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}
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else
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# Use arguments as database list when provided
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db_list=("$@")
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fi
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# Check if database list is empty
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if [ ${#db_list[@]} -eq 0 ]; then
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echo "ERROR: No databases to backup"
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restore_mysql_state
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exit 1
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fi
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backup_list_str="$BACKUP_DIR.7z"
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# Perform backup
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for db in "${db_list[@]}"; do
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echo "Backing up database: $db"
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backup_list_str="$backup_list_str $db"
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if ! docker exec -i mysql mysqldump -u "$MYSQL_USER" -p"$MYSQL_PASSWORD" -h "$MYSQL_HOST" --set-gtid-purged=OFF --single-transaction --databases "$db" > "$BACKUP_DIR/$db.sql"; then
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echo "[Critical Error] Failed to backup database $db, aborting"
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restore_mysql_state
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exit 1
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fi
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done
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# Post-backup: Restore MySQL state (before compression)
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echo "Restoring MySQL to read-write mode..."
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mysql_exec "SET GLOBAL read_only = OFF;" || echo "[Warning] Failed to set read_only = OFF"
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# Clear the trap since we've successfully restored
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READ_ONLY_SET="false"
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trap - EXIT ERR
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# Compress backup files
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if ! 7zz a "$BACKUP_DIR.7z" "$BACKUP_DIR" >/dev/null; then
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echo "Compression failed. Please check disk space or 7z installation"
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exit 1
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fi
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# Cleanup temporary files
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rm -rf "$BACKUP_DIR"
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echo "Backup completed: $BACKUP_DIR.7z"
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echo $backup_list_str >> backup_list.txt
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echo "Backup process completed successfully" |