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RAC 10G TAF TEST NO1

2009-10-29 12:07:06| 分类： oracle RAC技术 | 标签： |举报 |字号大中小订阅

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在默认rac安装完成后，数据库会生成根据数据库名称的tnsnames服务，但该服务目前在测试中并不能实现透明故障切换，
如：

[oracle@rac1 admin]$ cat tnsnames.ora
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/10.2.1/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

DEVDB2 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip.wanmo.com)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = devdb)
      (INSTANCE_NAME = devdb2)
    )
)

DEVDB1 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.wanmo.com)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = devdb)
      (INSTANCE_NAME = devdb1)
    )
)

DEVDB =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.wanmo.com)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip.wanmo.com)(PORT = 1521))
    (LOAD_BALANCE = yes)
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = devdb)
    )
)

LISTENERS_DEVDB =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip.wanmo.com)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip.wanmo.com)(PORT = 1521))
)

EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
)

切换前：
[oracle@rac1 ~]$
[oracle@rac1 ~]$ sqlplus system/oracle@devdb

SQL*Plus: Release 10.2.0.1.0 - Production on Wed Oct 8 10:18:50 2008

Copyright (c) 1982, 2005, Oracle. All rights reserved.

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options

SQL>
SQL>
SQL>
SQL> select instance_name from
2 v$instance ;

INSTANCE_NAME
----------------
devdb2

SQL>
SQL>
SQL>
SQL> l
1 select instance_name from
2* v$instance
SQL> run
1 select instance_name from
2* v$instance

INSTANCE_NAME
----------------
devdb2

SQL>
SQL>
SQL>
SQL>
SQL>
SQL>

切换：
[oracle@rac2 ~]$ echo $ORACLE_SID
devdb2
[oracle@rac2 ~]$ sqlplus '/ as sysdba '

SQL*Plus: Release 10.2.0.1.0 - Production on Wed Oct 8 09:58:53 2008

Copyright (c) 1982, 2005, Oracle. All rights reserved.

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options

SQL> shutdown abort
ORACLE instance shut down.
SQL> startup
ORACLE instance started.

Total System Global Area 167772160 bytes
Fixed Size                  1218316 bytes
Variable Size              96471284 bytes
Database Buffers           67108864 bytes
Redo Buffers                2973696 bytes
Database mounted.
Database opened.
SQL> shutdown abort
ORACLE instance shut down.
SQL>

切换后：
SQL>
SQL>
SQL> run
1 select instance_name from
2* v$instance
select instance_name from
*
ERROR at line 1:
ORA-03113: end-of-file on communication channel

SQL>

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