ORA-16191 PING[ARC2]: Heartbeat failed to connect to standby

隨記一下今天遇到的一個問題吧。
環境介紹：
gi version：11.2.0.4.0
database version：11.2.0.4.0
Oracle linux：Linux Server release 6.4
RAC雙節點ASM+restart-alone ASM
問題描述：
在duplicate 資料庫後再啟動standby 資料庫的即時應用時出現在RAC1可以正常串連 standby,但RAC2無法串連，如下錯誤：
standby database：

Error 1017 received logging on to the standby
------------------------------------------------------------
Check that the primary and standby are using a password file
and remote_login_passwordfile is set to SHARED or EXCLUSIVE,
and that the SYS password is same in the password files.
      returning error ORA-16191
------------------------------------------------------------
FAL[client, USER]: Error 16191 connecting to Rac for fetching gap sequence
Thu Apr 03 18:16:24 2014
RFS[6]: Assigned to RFS process 3836
RFS[6]: Opened log for thread 2 sequence 30 dbid -1867447592 branch 839537688
Archived Log entry 13 added for thread 2 sequence 30 rlc 839537688 ID 0x90b182d8 dest 2:
Thu Apr 03 18:16:26 2014
Media Recovery Log +FRA1/dg/archivelog/2014_04_03/thread_2_seq_30.288.843934585
Media Recovery Waiting for thread 2 sequence 31
Error 1017 received logging on to the standby
------------------------------------------------------------
Check that the primary and standby are using a password file
and remote_login_passwordfile is set to SHARED or EXCLUSIVE,
and that the SYS password is same in the password files.
      returning error ORA-16191
------------------------------------------------------------
FAL[client, USER]: Error 16191 connecting to Rac for fetching gap sequence

RAC2錯誤如下：

PING[ARC2]: Heartbeat failed to connect to standby 'DG'. Error is 16191.
Thu Apr 03 18:23:28 2014
Error 1017 received logging on to the standby
------------------------------------------------------------
Check that the primary and standby are using a password file
and remote_login_passwordfile is set to SHARED or EXCLUSIVE,
and that the SYS password is same in the password files.
      returning error ORA-16191
------------------------------------------------------------
PING[ARC2]: Heartbeat failed to connect to standby 'DG'. Error is 16191.
Thu Apr 03 18:24:29 2014
Error 1017 received logging on to the standby
------------------------------------------------------------
Check that the primary and standby are using a password file
and remote_login_passwordfile is set to SHARED or EXCLUSIVE,
and that the SYS password is same in the password files.
      returning error ORA-16191
------------------------------------------------------------
PING[ARC2]: Heartbeat failed to connect to standby 'DG'. Error is 16191.

問題排查：

檢查remote_loging_passwordfile參數設定皆為EXCLUSIVE。其他參數沒有任何可疑問題。

問題解決：

既然日誌中提示認證出現問題，且只有一個節點可以串連到standby database，那麼將該節點的密碼檔案傳到節點RAC2。