欢迎进入Oracle社区论坛，与200万技术人员互动交流 >>进入 Oracle RAC安装完毕后，监听、tnsname.ora按照Oracle默认配置好后，在服务器端用sqlplus连接没有问题，但是用客户端连接，会出现有时候连不上的错误，解决方法： 1、修改监听文件，增加SID_LIST_LIS
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Oracle RAC安装完毕后，监听、tnsname.ora按照Oracle默认配置好后，在服务器端用sqlplus连接没有问题，但是用客户端连接，会出现有时候连不上的错误，解决方法：
1、修改监听文件，增加SID_LIST_LISTENER，两台机器都要修改，修改完毕后如下：
LISTENER_ORCL1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.1)(PORT = 1521))
)
)
)
SID_LIST_LISTENER_ORCL1 =
(SID_LIST =
(SID_DESC =
(ORACLE_HOME = /u01/app/oracle/product/11.1.0)
(SID_NAME = ora1)
)
)
2、修改tnsname.ora，两台机器都要修改，例如第一台机器：
用Oracle的netca配置的时候，只配置了一个监听LISTENERS_ORCL，手工增加另外两个监听。
LISTENER_ORCL2 =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521))
)
LISTENER_ORCL1 =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.1)(PORT = 1521))
)
LISTENERS_ORCL =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.1)(PORT = 1521))
)
ORCL1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.1)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
)
)
ORCL2 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
)
)
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.1)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.2)(PORT = 1521))
(LOAD_BALANCE = yes)
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCL)
)
)
3、修改pfile，将两个本地监听设置上。
可以先导出一份spfile，修改完毕后再导入pfile。增加以下三行：
*.local_listener='LISTENER_ORCL'
ora1.local_listener='LISTENER_ORCL1'
ora2.local_listener='LISTENER_ORCL2'
另外，在启动oralce时，出现ora-32006的错误，数据库倒是起来能用。到网上搜索一通，说是oracle10g以后将*.log_archive_start=TRUE 这个参数去掉了，把这行从spfile中删除了，再启动没有报错。是否真的不需要这个参数，还需要再确认。
4、oracle驱动
经测试发现，在oracle RAC环境下，如果down掉一个实例，应用出现以下错误：
Io 异常: Software caused connection abort: socket write error
org.apache.cocoon.ProcessingException: error on execute servlet:login: javax.servlet.ServletException: error on execute servlet:login
cause: java.sql.SQLException: Io 异常: Software caused connection abort: socket write error
经反复测试，确定原因是oracle的驱动ojdbc14.jar没有放到WEB-INF/lib下的原因。此启动在公共lib下，必须COPY到当前工程下，才能实现fail-over的自动切换.
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