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Oracle 11gR2 RAC连接时ORA-12545错误

Jun 07, 2016 pm 05:31 PM

Oracle 11gR2 RAC连接时ORA-12545错误

刚装成的Oracle 11gR2的RAC集群

三个节点

创建好数据库,一切都在正常的进行中

然后去安装了一个oracle client,进行链接时出现了ORA-12545


然后简单的baidu了一下,有人说是11gR1的bug,改一下实例的监听配置

然后还有人说是11gR1的bug需要alter system register;(注册监听)

我这儿看,,我的实例和监听没错。

下边记录整个错误的分析过程

首先查看~/.bash_profile

export ORACLE_SID=+ASM1
#export ORACLE_HOME=/oracle/11.2.0/dbhome
export GRID_HOME=/grid/11.2.0/crs
export ORACLE_HOME=/grid/11.2.0/crs

这三个参数,我的是如上显示,然后实际我的oracle的安装host是在/oracle/11.2.0/dbhome这儿

我创建的数据库的SID是aaa

所以我需要手动设置这两个变量如下(在rac1,一个节点上):

export ORACLE_SID=aaa
export ORACLE_HOME=/oracle/11.2.0/dbhome

然后就可以sqlp / as sysdba连接了

SQL> show parameter db_name;

NAME                    TYPE    VALUE
------------------------------------ ----------- ------------------------------
db_name                  string    aaa
SQL> show parameter instance_name;                          //实例名

NAME                    TYPE    VALUE
------------------------------------ ----------- ------------------------------
instance_name                string    aaa1
SQL> show parameter listener;                                        //查看监听

NAME                    TYPE    VALUE
------------------------------------ ----------- ------------------------------
listener_networks            string
local_listener                string    (DESCRIPTION=(ADDRESS_LIST=(AD
                        DRESS=(PROTOCOL=TCP)(HOST=vip1
                        )(PORT=1521))))                                                                  //查得此处监听的是vip1:1521
remote_listener              string    cluster.rac.com:1521                            //remote监听scan的1521

 

这儿看local_listener监听的是vip1:1521端口,而我节点的vip的解析都是写在hosts中的,client找不到vipn的解析才导致每次链接都出现如下错误:

[oracle@SEM admin]$ sqlplus  system/aaa@aaa

SQL*Plus: Release 11.2.0.1.0 Production on 星期四 8月 8 21:01:11 2013

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

ERROR:
ORA-12545: 因目标主机或对象不存在, 连接失败

推荐阅读:

 

通过expdp&impdp把11g的数据迁移到10g平台的要点

 

Oracle Data Pump使用范例及部分注意事项(expdp/impdp)

 

Oracle datapump expdp/impdp 导入导出数据库时hang住

 

expdp/impdp做Oracle 10g 到11g的数据迁移

 

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