sybench压测下模拟误truncate数据恢复

基本环境：官方社区版MySQL 5.7.21 Row+Gtid
开启sysbench压测，使用mysqldump备份数据库，执行truncate操作，恢复数据到truncate前的时间点
1、切换日志，记录当前位置

# 3306切换日志
mydba@192.168.85.132,3306 [sbtest]> flush binary logs;
Query OK, 0 rows affected (0.07 sec)
# 3306查看当前位置
mydba@192.168.85.132,3306 [sbtest]> show master status;
+------------------+----------+--------------+------------------+-----------------------------------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                             |
+------------------+----------+--------------+------------------+-----------------------------------------------+
| mysql-bin.000013 |      194 |              |                  | 60863f8d-01af-11e8-bfdf-000c29c1025c:1-185088 |
+------------------+----------+--------------+------------------+-----------------------------------------------+
row in set (0.00 sec)

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