ORA-32004

今天在启动数据库的过程中，收到以下错误：

SQL> startup
ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance
ORACLE instance started.

在主机环境下查看ORA-32004错误的原因和解决方案

[oracle@node2 ~]$ oerr ora 32004
32004, 00000, "obsolete or deprecated parameter(s) specified for %s instance"
// *Cause:  Obsolete or deprecated parameters for this instance type 
//          were specified in the SPFILE or the PFILE on the server side.
// *Action: See alert log for a list of parameters that are obsolete
//          or deprecated. Remove them from the SPFILE or the server 
//          side PFILE.

可见spfile中存在已被淘汰的或向前兼容的参数。

可通过告警日志来查看涉及的具体参数

打开告警日志

[oracle@node2 ~]$ view /u01/app/oracle/diag/rdbms/orcl/orcl/trace/alert_orcl.log 

  _optimizer_try_st_before_jppd= TRUE
  _px_partition_scan_enabled= TRUE
  _optimizer_false_filter_pred_pullup= TRUE
  _optimizer_enable_table_lookup_by_nl= TRUE
  _optimizer_outer_join_to_inner= TRUE
  _optimizer_full_outer_join_to_outer= TRUE
  _sqltune_category_parsed = "DEFAULT"
  diagnostic_dest          = "/u01/app/oracle"
Deprecated system parameters with specified values:
 background_dump_dest user_dump_dest End of deprecated system parameter listing

红色部分即为涉及的具体参数

查看官方文档对于该参数的说明，原来在11g中这两个参数即被DIAGNOSTIC_DEST所替代

Note:
This parameter is ignored by the new diagnosability infrastructure introduced in Oracle Database 11g Release 1 (11.1), which places trace and core files in a location controlled by the DIAGNOSTIC_DEST initialization parameter.

返回数据库，查看background_dump_dest和user_dump_dest的值

SQL> show parameter background_dump_dest

NAME                     TYPE     VALUE
------------------------------------ ----------- ------------------------------
background_dump_dest             string     /u01/app/oracle/diag/rdbms/orcl/orcl/trace

SQL> show parameter user_dump_dest

NAME                     TYPE     VALUE
------------------------------------ ----------- ------------------------------
user_dump_dest                 string     /u01/app/oracle/diag/rdbms/orcl/orcl/trace

SQL> show parameter  DIAGNOSTIC_DEST

NAME                     TYPE     VALUE
------------------------------------ ----------- ------------------------------
diagnostic_dest              string     /u01/app/oracle

将参数重置为系统默认值

SQL> alter system reset background_dump_dest;

System altered.

SQL> alter system reset user_dump_dest;

System altered.

重启数据库，没有报上述ORA-32004错误。