环境

系统平台：UOS （飞腾）
版本：4.5.8

BUG/漏洞编码

3043

症状

BUG安装包： hgdb-see-4.5.8-db43858.aarch64.rpm

异常：hac集群一主两备环境，开启hgproxy和审计功能后，进行集群主备切换操作。切换过程持续近5分钟，主库方可切换到备节点上，其中未参与切换（原主与新主外的备节点）的备库无法拉起，持续restarting状态很长时间后start failed。

[root@tianxingao ~]# hghactl switchover see_cluster
Current cluster topology
+ Cluster: see_cluster --------+--------+---------+----+-----------+
| Member | Host                | Role   | State   | TL | Lag in MB |
+--------+---------------------+--------+---------+----+-----------+
| hg_01  | x.x.66.135:5866 |Replica | running | 12 |         0 |
| hg_02  | x.x.66.135:5866 |Leader  | running | 12 |           |
| hg_03  | x.x.66.135:5866 |Replica | running | 12 |         0 |
+--------+---------------------+--------+---------+----+-----------+
Primary [hg_02]:
candidate ['hg_0l', "hg_03'] []: hg_01
When should the switchover take place (e.g, 2023-09-26T18:24 ) [now]:
Are you sure you want to switchover cluster see cluster, demoting current leader hg_02? [y/N]: y
Switchover failed, details: 503,Switchover status unknown

数据库日志报错：

2023-09-26 20:29:32.CST,,,6512ceac,1a1f6,3."",2023-09-26 20:29:32 CST,,0,PANTC,XX000,"cannot wait without a PGPROC structure".........""

触发条件

开启审计功能后执行集群切换主节点操作即可复现。

解决方案

1、临时解决方案：关闭审计功能，修改审计参数后需要重启集群。

[root@tianxingao hghac]# psql highgo syssao
Password for user syssao: highgo=> select set_audit_param('hg_audit','off');set_audit_param         
---------------------------------set configuration successfully.
(1 row)highgo=> \q[root@tianxingao hghac]# hghactl restart see_cluster

2、永久解决方案

解决此问题的安装包：hgdb-see-4.5.8-6954d9f.aarch64.rpm

重新安装修复此问题的新版本数据库包可解决。