本帖最后由 happy_lhh 于 2015-5-19 17:17 编辑

数据库服务器为2个结点的RAC

在应用服务器上安装ORACLE客户端，配置tnsnames.ora如下：

test_new =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 172.100.3.100)(PORT = 1521))

)

(LOAD_BALANCE = yes)(FAILOVER = ON)

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = test)

(FAILOVER_MODE=(TYPE = SELECT)(METHOD = BASIC)

(RETIRES = 20)(DELAY = 15))

)

)

test =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 172.100.3.100)(PORT = 1521))

)

(CONNECT_DATA =

(SERVICE_NAME = test)

)

)

sqlplususername/passwd@test，可以正常连接数据库

sqlplususername/passwd@test_new，就会报ORA-12169的错

[oracle@cardsys admin]$ sqlplus username/passwd@test

SQL*Plus: Release 11.2.0.1.0 Production on Tue May 19 16:25:06 2015

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

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,

Data Mining and Real Application Testing options

SQL>

[oracle@cardsys admin]$ sqlplus

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

ERROR:

ORA-12169: TNS:Net service name given as connect identifier is too long

Enter user-name:

tnsping的信息也很奇怪，如下：

[oracle@cardsys admin]$ tnsping test_new

TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 19-MAY-2015 16:24:57

Copyright (c) 1997, 2009, Oracle.  All rights reserved.

Used parameter files:

/u01/oracle/product/11.2.0/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias

)RETIRES = 20)(DELAY = 15))CT)(METHOD = BASIC)00)(PORT = 1521))

OK (0 msec)

[oracle@preserver product]$ tnsping test

TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 19-MAY-2015 16:59:07

Copyright (c) 1997, 2009, Oracle.  All rights reserved.

Used parameter files:

/u01/oracle/product/11.2.0/db_1/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias

)SERVICE_NAME = ICDC)= TCP)(HOST = 172.100.3.100)(PORT = 1521))

OK (0 msec)