Oracle 11gR2 RAC Listener - 多端口多监听
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Oracle单实例库,可以配置多个监听服务,同时监听同一个service,具体的步骤可以参考之前的文章。
Oracle RAC想使用多端口,多监听服务,来同时监听同一个service,也可以。
官方文档:http://docs.oracle.com/cd/B28359_01/network.111/b28317/listener.htm
例子-1
Oracle 11gR2 RAC安装完毕之后,默认会在grid用户下创建4个监听服务,包括1个普通监听服务,3个scan监听服务。
可以到oracle账户下创建一个另监听服务器listener_prod端口1531,来监听prod服务。
1,创建配置listener.ora文件(oraprod用户,节点1,节点2)
节点1LISTENER_PROD = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = q1ebsdb01-vip.imc.com)(PORT = 1531)(IP = FIRST))) (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = q1ebsdb01)(PORT = 1531)(IP = FIRST))) ) )SID_LIST_LISTENER_PROD = (SID_LIST = (SID_DESC = (ORACLE_HOME = /prod/oracle/product/11.2.0/db_1)(SID_NAME = prod1)) )节点2LISTENER_prod = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = q1ebsdb02-vip.imc.com)(PORT = 1531)(IP = FIRST))) (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = q1ebsdb02)(PORT = 1531)(IP = FIRST))) ) )SID_LIST_LISTENER_prod = (SID_LIST = (SID_DESC = (ORACLE_HOME = /prod/oracle/product/11.2.0/db_1)(SID_NAME = prod2)) )2,创建配置tnsnames.ora文件(oraprod用户,节点1,节点2)
节点1grid_LOCAL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = q1ebsdb01-vip.imc.com)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = prod) ) )prod_LOCAL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = q1ebsdb01-vip.imc.com)(PORT = 1531)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = prod) ) )节点2grid_LOCAL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = q1ebsdb02-vip.imc.com)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = prod) ) )prod_LOCAL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = q1ebsdb02-vip.imc.com)(PORT = 1531)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = prod) ) )
3,检查oraprod的TNS_ADMIN环境变量,默认系统会到$ORACLE_HOME/network/admin下寻找listener.ora和tnsnames.ora的配置。
设置oraprod的环境变量TNS_ADMIN='/prod/oracle/product/11.2.0/network/admin/PROD_p1ebsdb',监听的配置文件都放在该目录下,否则会导致出错
TNS-01101:Could not find service name,参考网友http://jvardhan.blogspot.com/2012/02/tnsadmin-effects.html
4,修改local_listener
SQL> show parameter listenerNAME TYPE VALUE------------------------------------ ----------- ------------------------------listener_networks stringlocal_listener string (DESCRIPTION=(ADDRESS_LIST=(AD DRESS=(PROTOCOL=TCP)(HOST=10.2 53.52.40)(PORT=1521))))remote_listener string q1ebsdb-scan:1521SQL> show parameter listenerNAME TYPE VALUE------------------------------------ ----------- ------------------------------listener_networks stringlocal_listener string (DESCRIPTION=(ADDRESS_LIST=(AD DRESS=(PROTOCOL=TCP)(HOST=10.2 53.52.41)(PORT=1521))))recovery_parallelism integer 0remote_listener string q1ebsdb-scan:1521RAC中同一个service_name默认被一个listener监听,也能同时被2个不同的listener所监听。tnsnames.ora文件只需要有一个即可,但listner.ora为2个,oragrid和oraprod的监听都使用该文件。SQL> show parameter listenerNAME TYPE VALUE------------------------------------ ----------- ------------------------------listener_networks stringlocal_listener string (DESCRIPTION=(ADDRESS_LIST=(AD DRESS=(PROTOCOL=TCP)(HOST=10.2 53.52.40)(PORT=1521)))), (DESC RIPTION=(ADDRESS_LIST=(ADDRESS =(PROTOCOL=TCP)(HOST=10.253.52 .40)(PORT=1531))))remote_listener string q1ebsdb-scan:1521SQL> !hostnameq1ebsdb01.imc.comSQL> alter system set local_listener='grid_LOCAL','prod_LOCAL' scope=memory sid='prod1';System altered.SQL> alter system set local_listener='grid_LOCAL','prod_LOCAL' scope=memory sid='prod2';System altered.SQL> show parameter lisNAME TYPE VALUE------------------------------------ ----------- ------------------------------listener_networks stringlocal_listener string grid_LOCAL, prod_LOCALrecovery_parallelism integer 0remote_listener string q1ebsdb-scan:1521SQL> alter system set local_listener='grid_LOCAL','prod_LOCAL' sid='prod1';System altered.SQL> alter system set local_listener='grid_LOCAL','prod_LOCAL' sid='prod2';System altered.注意不能同时一起更新该参数文件,因为配置文件的具体内容不相同。SQL> alter system set local_listener='grid_LOCAL','prod_LOCAL';alter system set local_listener='grid_LOCAL','prod_LOCAL'*ERROR at line 1:ORA-32008: error while processing parameter update at instance prod1ORA-02097: parameter cannot be modified because specified value is invalidORA-00119: invalid specification for system parameter LOCAL_LISTENERORA-00132: syntax error or unresolved network name 'grid_LOCAL'ORA-00132: syntax error or unresolved network
5,注册新建的listener服务到CRS,oraprod用户执行
srvctl add listener -l LISTENER_PROD -o /prod/oracle/product/11.2.0 -p 1531
srvctl setenv listener -lLISTENER_PROD -T TNS_ADMIN='/prod/oracle/product/11.2.0/network/admin/PROD_p1ebsdb'
6,验证一下
lsnrctl status LISTENER
lsnrctl status LISTENER_PROD
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