xtr单独备份bash

xtrbk.sh

@@ -0,0 +1,56 @@
+#!/bin/bash
+ 
+# 设置数据库配置
+USER="root"
+PASSWORD="pass"
+DEFAULTS_FILE="/etc/my.cnf"  # 指定你的配置文件
+#DATADIR="/var/lib/mysql"
+BASE_BACKUP_DIR="/www/embk/xtr"
+SOCKET_FILE="/tmp/mysql.sock"
+ 
+# 获取当前日期
+CURRENT_DATE=$(date +%Y-%m-%d)
+FULL_BACKUP_DIR="$BASE_BACKUP_DIR/full_$CURRENT_DATE"
+FULL_BACKUP_LOG="$BASE_BACKUP_DIR/log_full_$CURRENT_DATE.log"
+INCREMENTAL_BACKUP_DIR="$BASE_BACKUP_DIR/incremental_$CURRENT_DATE"
+INCREMENTAL_BACKUP_LOG="$BASE_BACKUP_DIR/log_incremental_$CURRENT_DATE.log"
+
+## check directory has exists
+if [ -e $FULL_BACKUP_DIR ]; then
+    echo $FULL_BACKUP_DIR"exists!"
+else
+    mkdir -p $FULL_BACKUP_DIR
+fi
+
+if [ ! -e $INCREMENTAL_BACKUP_DIR ];then
+    mkdir -p $INCREMENTAL_BACKUP_DIR
+fi
+
+
+ 
+# 检查是否为周日
+if [ "$(date +%u)" -eq 7 ]; then
+    # 周日进行全量备份
+    echo "Starting full backup..."
+    xtrabackup --defaults-file="$DEFAULTS_FILE" --backup --target-dir="$FULL_BACKUP_DIR" --user="$USER" --password="$PASSWORD" --socket="$SOCKET_FILE" --compress --compress-threads=2 > "$FULL_BACKUP_LOG" 2>&1
+    echo "Full backup completed."
+else
+    # 其他天进行增量备份
+    LAST_FULL_DIR=$(ls -d "$BASE_BACKUP_DIR/full_"* | sort | tail -n 1)
+    LAST_INCREMENTAL_DIR=$(ls -d "$BASE_BACKUP_DIR/incremental_"* | sort | tail -n 1)
+ 
+    if [ -z "$LAST_FULL_DIR" ]; then
+        echo "No previous full backup found. Exiting."
+        exit 1
+    fi
+ 
+    if [ -z "$LAST_INCREMENTAL_DIR" ]; then
+        echo "No previous incremental backup found. Using the last full backup for the base."
+        LAST_INCREMENTAL_DIR="$LAST_FULL_DIR"
+    fi
+ 
+    echo "Starting incremental backup based on $LAST_INCREMENTAL_DIR..."
+    xtrabackup --defaults-file="$DEFAULTS_FILE"  --backup --no-lock --target-dir="$INCREMENTAL_BACKUP_DIR" --incremental-basedir="$LAST_INCREMENTAL_DIR"  --user="$USER" --password="$PASSWORD" --socket="$SOCKET_FILE"  --compress > "$INCREMENTAL_BACKUP_LOG" 2>&1
+    echo "Incremental backup completed."
+fi
+