背景:最近生产环境greenplum集群批量回收普通用户login权限时误把超级用户gpadmin权限回收,导致集群异常无法正常提供服务、无法进行日常运维操作,抛出异常:FATAL: role "gpadmin" is not permitted to log in
故障操作复现:
登录数据库执行回收gpadmin登录权限
postgres=#
postgres=# alter role gpadmin nologin;
ALTER ROLE
postgres=#
此时数据库无法执行日常运维操作提示无登录权限,如下:
[gpadmin@redhat2 ~]$ psql
psql: FATAL: Ident authentication failed for user "gpadmin"
[gpadmin@redhat2 ~]$
[gpadmin@redhat2 ~]$ gpstate -m
20220218:00:00:42:051408 gpstate:redhat2:gpadmin-[INFO]:-Starting gpstate with args: -m
20220218:00:00:42:051408 gpstate:redhat2:gpadmin-[INFO]:-local Greenplum Version: 'postgres (Greenplum Database) 4.3.8.0 build 1'
20220218:00:00:42:051408 gpstate:redhat2:gpadmin-[CRITICAL]:-gpstate failed. (Reason='FATAL: role "gpadmin" is not permitted to log in
') exiting...
[gpadmin@redhat2 ~]$
解决方案:
一、使用其它超级用户登

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