mysql XA提交

Question

在mysql重新启动上提交XA挂起事务时，我将得到以下错误。请帮助我解决这个错误。

mysql> XA RECOVER CONVERT XID;
+----------+--------------+--------------+------------------------------------------------------------------------------------------------+
| formatID | gtrid_length | bqual_length | data                                                                                           |
+----------+--------------+--------------+------------------------------------------------------------------------------------------------+
|  4871251 |           26 |           20 | 0xA223010095EDCC9A6369736861322C7365727665722C503130306369736861322C7365727665722C503130302C00 |
|  4871251 |           26 |           20 | 0xA123010095EDCC9A6369736861322C7365727665722C503130306369736861322C7365727665722C503130302C00 |
|  4871251 |           26 |           20 | 0xA023010095EDCC9A6369736861322C7365727665722C503130306369736861322C7365727665722C503130302C01 |


mysql> XA COMMIT 0x7023010095EDCC9A6369736861322C7365727665722C503130,0x306369736861322C7365727665722C503130302C00,4871251;
ERROR 1397 (XAE04): XAER_NOTA: Unknown XID

[root@db1 ~]# mysql --version
mysql  Ver 14.14 Distrib 5.7.20, for Linux (x86_64) using  EditLine wrapper
[root@db1 ~]# uname -a
Linux db1 3.10.0-514.26.2.el7.x86_64 #1 SMP Fri Jun 30 05:26:04 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@db1 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.3 (Maipo)

Answer 1

根据您的数据，gtrid的长度为26，但提交中的gtrid值(7023010095EDCC9A6369736861322C7365727665722C503130)只有50个字符，因此实际长度只有25个，而不是26个。相应地，bqual更长，gtrid应该是7023010095EDCC9A6369736861322C7365727665722C50313030，并相应地调整bqual。