問題：

Oracle 告警日志有大量如下信息，平均每? 10 分鐘出現一次：

[oracle@oracle-server001 trace]$ pwd

/u01/app/oracle/diag/rdbms/chendb/chendb/trace

[oracle@oracle-server001 trace]$ vi alert_chendb.log

......

2019-01-03T01:28:08.337087+08:00

Errors in file /u01/app/oracle/diag/rdbms/chendb/chendb/trace/chendb_j000_84302.trc:

ORA-12012: error on auto execute of job "SYS"."ORA$AT_OS_OPT_SY_2612"

ORA-20001: Statistics Advisor: Invalid task name for the current user

ORA-06512: at "SYS.DBMS_STATS", line 49538

ORA-06512: at "SYS.DBMS_STATS_ADVISOR", line 881

ORA-06512: at "SYS.DBMS_STATS_INTERNAL", line 21631

ORA-06512: at "SYS.DBMS_STATS_INTERNAL", line 23763

ORA-06512: at "SYS.DBMS_STATS", line 49526

2019-01-03T01:38:13.791103+08:00

環境說明：

OS: CentOS Linux release 7.5

DB:Oracle 18.3.0.0.0

問題原因：

Bug 22879263? ? - BETA 12.2 - ORA-12012 , ORA-20001 AND ORA-06512 FROM ORA$AT_OS_OPT_SY_88 JOB

解決方案：

1.Bug is fixed in 12.2.0.1.0.

2.Use following workaround:

execute "? EXEC dbms_stats.init_package();? "

---support.oracle.com 上? ? 詳細說明如下

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

APPLIES TO:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later

Information in this document applies to any platform.

SYMPTOMS

In container database, following errors are seen in the alert log:

ORA-12012: error on auto execute of job "SYS"."ORA$AT_OS_OPT_SY_7165"

ORA-20001: Statistics Advisor: Invalid task name for the current user

ORA-06512: at "SYS.DBMS_STATS", line 47207

ORA-06512: at "SYS.DBMS_STATS_ADVISOR", line 882

ORA-06512: at "SYS.DBMS_STATS_INTERNAL", line 20059

ORA-06512: at "SYS.DBMS_STATS_INTERNAL", line 22201

ORA-06512: at "SYS.DBMS_STATS", line 47197

CHANGES

CAUSE

This is due to following unpublished bug:

Bug 22879263 - BETA 12.2 - ORA-12012 , ORA-20001 AND ORA-06512 FROM ORA$AT_OS_OPT_SY_88 JOB

SOLUTION

Bug is fixed in 12.2.0.1.0.

Use following workaround:

execute "EXEC dbms_stats.init_package();"

總結

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