配置DataGuard時報ORA-12528

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配置DataGuard時報ORA-12528

說明:在DataGuard的搭建中,運行rman恢複的時候報錯ORA-12528的錯誤; 

指令碼如下:RMAN>  connect auxiliary sys/Oracle@SCMPRD02 

解決步驟: 

1、檢查監聽是否啟動,指令碼:tnsping SCMPRD02 

 方法一:設定資料庫的監聽為靜態參數步驟:在ORACLE_HOME/network/admin 下面檢查是否有listener.ora參數檔案,如果沒有的話運行netca建立資料庫的監聽,配置完成的監聽檔案如下: 

 

LISTENER = 

  (DESCRIPTION_LIST = 

    (DESCRIPTION = 

      (ADDRESS = (PROTOCOL = TCP)(HOST = SCMPRDDB02)(PORT = 1521)) 

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) 

    ) 

  ) 

   

ADR_BASE_LISTENER = /u01/app/oracle
 

方法二:修改tnsnames.ora檔案 

 

SCMPRD02 = 
    (DESCRIPTION =
    (ADDRESS =
        (PROTOCOL = TCP)(HOST = WELL)(PORT = 1521))   
          (CONNECT_DATA =     
          (SERVER = DEDICATED)      (
          SERVICE_NAME = SCMPRD02)     
            (UR = A)  //增加該備忘// 
              )
                  )
 

總結:ORA-12528: TNS:listener: all appropriate instances are blocking new connections 

Cause:All instances supporting the service requested by the client reported that they were blocking the new connections. This condition may be temporary, such as at instance startup.Action:Attempt the connection again. If error persists, then contact the administrator to check the status of the instances. 

因為我們複製資料庫只是在nomount下開啟,而資料庫並沒有mount,在11g下所有的監聽都是動態監聽,而只有在資料庫mount以後,PMON進程起來以後,才能動態註冊。所以對次要資料庫沒有辦法註冊,只能被鎖住。 

所以修改資料庫的監聽為靜態監聽,或者增加(UR=A)即可解決問題;

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