12c alert log中出现ORA-12012 ORA-20001ORA-06512告警

RDBMS 12.2.0.1，近期在alertlog中发现频繁出现ORA-12012 ORA-20001ORA-06512告警

告警内容如下：

2018-09-02T08:33:25.990742+08:00
Errors in file E:\APP\TEST\VIRTUAL\diag\rdbms\orcl\orcl\trace\orcl_j000_2144.trc:
ORA-12012: 鑷姩鎵ц浣滀笟 "SYS"."ORA$AT_OS_OPT_SY_81" 鍑洪敊
ORA-20001: Statistics Advisor: Invalid task name for the current user
ORA-06512: 鍦?"SYS.DBMS_STATS", line 47207
ORA-06512: 鍦?"SYS.DBMS_STATS_ADVISOR", line 882
ORA-06512: 鍦?"SYS.DBMS_STATS_INTERNAL", line 20059
ORA-06512: 鍦?"SYS.DBMS_STATS_INTERNAL", line 22201
ORA-06512: 鍦?"SYS.DBMS_STATS", line 47197
2018-09-02T09:06:39.593917+08:00

trc文件如下：

Trace file E:\APP\TEST\VIRTUAL\diag\rdbms\orcl\orcl\trace\orcl_j000_2144.trc
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
Build label:    RDBMS_12.2.0.1.0WINDBBP_WINDOWS.X64_180614.2
Windows NT Version V6.1 Service Pack 1 
ORACLE_HOME =  E:\app\test\virtual\product\12.2.0\dbhome_1
Node name           : TEST-PC
CPU                 : 1 - type 8664, 1 Physical Cores
Process Affinity    : 0x0x0000000000000000
Memory (Avail/Total): Ph:895
Instance name: orcl
Redo thread mounted by this instance: 1
Oracle process number: 56
Windows thread id: 2144, image: ORACLE.EXE (J000)


*** 2018-09-02T08:33:25.990742+08:00 (CDB$ROOT(1))
*** SESSION ID:(75.43115) 2018-09-02T08:33:25.990742+08:00
*** CLIENT ID:() 2018-09-02T08:33:25.990742+08:00
*** SERVICE NAME:(SYS$USERS) 2018-09-02T08:33:25.990742+08:00
*** MODULE NAME:(DBMS_SCHEDULER) 2018-09-02T08:33:25.990742+08:00
*** ACTION NAME:(ORA$AT_OS_OPT_SY_81) 2018-09-02T08:33:25.990742+08:00
*** CLIENT DRIVER:() 2018-09-02T08:33:25.990742+08:00
*** CONTAINER ID:(1) 2018-09-02T08:33:25.990742+08:00
 
ORA-12012: 自动执行作业 "SYS"."ORA$AT_OS_OPT_SY_81" 出错
ORA-20001: Statistics Advisor: Invalid task name for the current user
ORA-06512: 在 "SYS.DBMS_STATS", line 47207
ORA-06512: 在 "SYS.DBMS_STATS_ADVISOR", line 882
ORA-06512: 在 "SYS.DBMS_STATS_INTERNAL", line 20059
ORA-06512: 在 "SYS.DBMS_STATS_INTERNAL", line 22201
ORA-06512: 在 "SYS.DBMS_STATS", line 47197

查看MOS，该错误和MOS 2420581.1较为吻合。

Recurring ORA-12012, ORA-20001, ORA-06512 In Container Database (文档 ID 2420581.1)

解决方法：

SYS@win12c>EXEC dbms_stats.init_package();

PL/SQL 过程已成功完成。

SYS@win12c>

END

12c alert log中出现ORA-12012 ORA-20001ORA-06512告警

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