連線scan ip出現ORA-12545錯誤

myy10146發表於2013-01-21
GRID和資料庫版本：11.2.0.1
OS： Solaris 5.10
現象： 在客戶端連線scan ip時報錯
sqlplus system/oracle@210.10.4.5:1521/pdpt
ORA-12545: 因目標主機或物件不存在，連線失敗

但兩臺資料庫伺服器之間連scan ip則沒問題

# cat /etc/hosts
::1     localhost       
127.0.0.1       localhost       
210.10.4.5      taian-pt-d1     loghost
210.10.4.6  taian-pt-d2
210.10.4.9  taian-pt-d1-vip
210.10.4.10  taian-pt-d2-vip
210.10.4.7   pdpt-cluster-scan
192.168.2.1  taian-pt-d1-priv
192.168.2.2  taian-pt-d2-priv

經檢查scan ip監聽正常，客戶端能ping通scan ip
-bash-3.2$ crs_stat -t rac資源服務正常
Name           Type           Target    State     Host        
------------------------------------------------------------
ora.ARCHDG.dg  ora....up.type ONLINE    ONLINE    taian-pt-d1 
ora.DATADG.dg  ora....up.type ONLINE    ONLINE    taian-pt-d1 
ora....ER.lsnr ora....er.type ONLINE    ONLINE    taian-pt-d1 
ora....N1.lsnr ora....er.type ONLINE    ONLINE    taian-pt-d2 
ora.OCRVT.dg   ora....up.type ONLINE    ONLINE    taian-pt-d1 
ora.asm        ora.asm.type   ONLINE    ONLINE    taian-pt-d1 
ora.eons       ora.eons.type  ONLINE    ONLINE    taian-pt-d1 
ora.gsd        ora.gsd.type   OFFLINE   OFFLINE               
ora....network ora....rk.type ONLINE    ONLINE    taian-pt-d1 
ora.oc4j       ora.oc4j.type  OFFLINE   OFFLINE               
ora.ons        ora.ons.type   ONLINE    ONLINE    taian-pt-d1 
ora.pdpt.db    ora....se.type ONLINE    ONLINE    taian-pt-d1 
ora.scan1.vip  ora....ip.type ONLINE    ONLINE    taian-pt-d2 
ora....SM1.asm application    ONLINE    ONLINE    taian-pt-d1 
ora....D1.lsnr application    ONLINE    ONLINE    taian-pt-d1 
ora....-d1.gsd application    OFFLINE   OFFLINE               
ora....-d1.ons application    ONLINE    ONLINE    taian-pt-d1 
ora....-d1.vip ora....t1.type ONLINE    ONLINE    taian-pt-d1 
ora....SM2.asm application    ONLINE    ONLINE    taian-pt-d2 
ora....D2.lsnr application    ONLINE    ONLINE    taian-pt-d2 
ora....-d2.gsd application    OFFLINE   OFFLINE               
ora....-d2.ons application    ONLINE    ONLINE    taian-pt-d2 
ora....-d2.vip ora....t1.type ONLINE    ONLINE    taian-pt-d2 

-bash-3.2$ lsnrctl status LISTENER_SCAN1 scan IP監聽正常
LSNRCTL for Solaris: Version 11.2.0.1.0 - Production on 06-MAR-2012 09:36:50
Copyright (c) 1991, 2009, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER_SCAN1
Version                   TNSLSNR for Solaris: Version 11.2.0.1.0 - Production
Start Date                29-FEB-2012 13:42:48
Uptime                    5 days 19 hr. 54 min. 1 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/app/grid_home/network/admin/listener.ora
Listener Log File         /home/app/grid_home/log/diag/tnslsnr/taian-pt-d2/listener_scan1/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=210.10.4.7)(PORT=1521)))
Services Summary...
Service "PDPT" has 2 instance(s).
  Instance "PDPT1", status READY, has 1 handler(s) for this service...
  Instance "PDPT2", status READY, has 1 handler(s) for this service...
The command completed successfully

SQL> show parameter listener 資料庫例項的local_listener引數內容為vip的主機名
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
listener_networks                    string
local_listener                       string      (DESCRIPTION=(ADDRESS_LIST=(AD
                                                 DRESS=(PROTOCOL=TCP)(HOST=taia
                                                 n-pt-d2-vip)(PORT=1521))))
remote_listener                      string      pdpt-cluster-scan:1521


經Metalink上查詢，發現這是11.2.0.1的小bug：“ORA-12545 or ORA-12537 while connecting to RAC through SCAN name[ID 970619.1]”，11.2.0.2及之後的版本就修復好了
Client is able to resolve all Fully Qualified Domain Name (FQDN) SCAN and VIP name but not short ones(without domain name) as its in different domain; even though FQDN names were specified during Grid Infrastructure setup, due to bug 9150053 by default DBCA set database parameter local_listener to short node VIP name while database is created.
因此只要把資料庫例項引數local_listener內的host改為vip的IP地址即可。
NODE1：
SQL> alter system set local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=210.10.4.9)(PORT=1521))))' scope=both sid='PDPT1';
System altered.
SQL> alter system register;
System altered.
NODE2：
SQL> alter system set local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=210.10.4.10)(PORT=1521))))' scope=both sid='PDPT2';
System altered.
SQL> alter system register;
System altered.

參考： How to Troubleshoot Connectivity Issue with 11gR2 SCAN Name [ID 975457.1]
ORA-12545 or ORA-12537 while connecting to RAC through SCAN name[ID 970619.1]
11.2 Scan and Node TNS Listener Setup Examples [ID 1070607.1]

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