MySQL XA トランザクション

use learn_seata_account;
select * from account_tbl;
+----+-----------+---------+
| id | user_id   | money   |
+----+-----------+---------+
|  1 | yueyazhui | 1500000 |
+----+-----------+---------+
-- 一阶段
-- 开启 XA 事务
xa start "transfer_money";
-- 更新（业务逻辑）
update account_tbl set money = money - 300000 where user_id = 'yueyazhui';
-- 结束 XA 事务（处于 idle 状态）
xa end "transfer_money";
-- 提交
xa commit "transfer_money" one phase;
select * from account_tbl;
+----+-----------+---------+
| id | user_id   | money   |
+----+-----------+---------+
|  1 | yueyazhui | 1200000 |
+----+-----------+---------+
-- 准备（给协调者 binlog 报告状态，如果是一阶段提交这一步可省略）
xa prepare "transfer_money";
-- 二阶段
-- 提交
xa commit "transfer_money";
select * from account_tbl;
+----+-----------+---------+
| id | user_id   | money   |
+----+-----------+---------+
|  1 | yueyazhui | 1200000 |
+----+-----------+---------+
-- 回滚
-- 查看处于 prepare 状态
xa recover;
+----------+--------------+--------------+----------------+
| formatID | gtrid_length | bqual_length | data           |
+----------+--------------+--------------+----------------+
|        1 |           14 |            0 | transfer_money |
+----------+--------------+--------------+----------------+
-- xa rollback data.substring(0, gtrid_length), data.substring(gtrid_length + 1), formatID;
xa rollback "transfer_money", "", 1;
select * from account_tbl;
+----+-----------+---------+
| id | user_id   | money   |
+----+-----------+---------+
|  1 | yueyazhui | 1500000 |
+----+-----------+---------+