ORA-16047: DGID mismatch between destination setting and target database

做DG的时候主库两个节点无法把日志传到备库上

SQL> select dest_name,status,type,database_mode,protection_mode,destination,applied_seq#,db_unique_name from v$archive_dest_status;

DEST_NAME                 STATUS    TYPE       DATABASE_MODE   PROTECTION_MODE      DESTINATIO APPLIED_SEQ# DB_UNIQUE_NAME
------------------------- --------- ---------- --------------- -------------------- ---------- ------------ ------------------------------
LOG_ARCHIVE_DEST_1        VALID     LOCAL      OPEN_READ-ONLY  MAXIMUM PERFORMANCE  +DATA/sharkd            0 sharkdg
                                                                                    b/archivel
                                                                                    og

LOG_ARCHIVE_DEST_2        ERROR     UNKNOWN    UNKNOWN         MAXIMUM PERFORMANCE  sharkdb                 0 sharkdb

发现 STATUS 非 VALID状态。

select dest_id,error from v$archive_dest;

看来没有把日志传过去

查看 ALTER.ORA日志

*** 2013-08-26 11:19:06.319

Archived Log entry 1792 added for thread 1 sequence 902 ID 0xfe904e46 dest 1: /arch/1_902_822142156.dbf

ORA-16055: FAL request rejected

检查 log_archive_dest_2 设置

SQL> show parameter LOG_ARCHIVE_DEST_2

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_2                   string      service=shardb lgwr sync affirm valid_for=(online_logfiles,primary_role)db_unique_name=sharkdg

查看备库的DB_UNIQUE_NAME 是否有错  果然设置成了SHARKDB了

或查看log_archive_config='DG_CONFIG=（）‘

修改了 LOG_ARCHIVE_DEST_2  SCOPE=BOTH   依旧要重启实例 否则好像并不能生效。