Oracle-GI环境中单独public 网络中配置第二个监听服务

在Grid Infrastructure中单独网络中配置第二个监听器

在 Grid Infrastructure 安装过程中，监听器默认在public IP网络中启动服务。在某些系统中配置了1个以上的public IP网络，因此可能需要在第二个public ip网络中创建另一个独立的监听器。

下面详细介绍如何在第二个public网络上添加/创建/配置第二个侦听器。

详细配置过程

前期准备

下面是2节点RAC集群中/etc/hosts 文件或DNS配置

# public ip and vip on eth1
node1       10.96.0.1
node1-vip   10.96.0.11
node1-priv  172.168.0.1

node2       10.96.0.2
node2-vip   10.96.0.12
node2-priv  172.168.0.2

node-scan   10.96.0.3

# 2nd public ip and vip on eth2
node1n2       20.96.0.1
node1n2-vip   20.96.0.21

node2n2       20.96.0.2
node2n2-vip   20.96.0.22

## 12C scan2
node2-scan    20.96.0.3

备份OCR和gpnp配置文件

备份OCR

su - root
. /home/grid/.bash_profile
ocrconfig -export bkocr_$(date +%Y%m%d).ocr

备份gpnp配置文件

su - grid
cp $ORACLE_HOME/gpnp/$(hostname -s)/profiles/peer/profile.xml{,_$(date +%Y%m%d)}

检查当前IP相关配置

su - grid
$ORACLE_HOME/bin/oifcfg iflist -p

$ORACLE_HOME/bin/oifcfg getif 

在11.2 Grid Infrastructure环境中配置方案

在11.2 版本中，一个RAC集群仅能定义一个scan名称，第二个网络不能使用相同的SCAN名称。从12C开始支持多个SCAN名称。

在CRS资源中创建第2个网络配置

主机名应该小写字符

配置VIP资源

su - root
. /home/grid/.bash_profile
# 语法
## 11.2.0.1
$ORACLE_HOME/bin/srvctl add vip -n <node_name> -k <network_number> -A <name|ip>/<netmask>/[if1[|if2...]] [-v]
## 11.2.0.2+
srvctl add network [-k <net_num>] -S <subnet>/<netmask>/[if1[|if2...]] [-w <network_type>] [-v]

# 示例
srvctl add vip -n node1 -k 2 -A node1n2-vip/255.255.255.0/eth2
srvctl add vip -n node2 -k 2 -A node2n2-vip/255.255.255.0/eth2

检查确认

crsctl stat res -t |grep -E 'net|vip'

创建监听器2

su - grid
srvctl add listener -l LISTENER2 -s -p 1521 -k 2
srvctl start listener -l LISTENER2

当使用与在用的监听器相同端口号时，需要添加-s选项

检查监听器2服务状态

lsnrctl status LISTENER2

数据库实例中配置监听相关参数

需要修改 LISTENER_NETWORKS 参数值

$TNS_ADMIN/tnsnames.ora中配置

• node1

listener1 = 
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = node1-vip)(PORT = 1521))
   )

all1 = 
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = node1-vip)(PORT = 1521))
     (ADDRESS = (PROTOCOL = TCP)(HOST = node2-vip)(PORT = 1521))
   )

listener2 = 
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = node1n2-vip)(PORT = 1521))
   )

all2 = 
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = node1n2-vip)(PORT = 1521))
     (ADDRESS = (PROTOCOL = TCP)(HOST = node2n2-vip)(PORT = 1521))
   )

• node2

listener1 = 
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = node2-vip)(PORT = 1521))
   )

all1 = 
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = node1-vip)(PORT = 1521))
     (ADDRESS = (PROTOCOL = TCP)(HOST = node2-vip)(PORT = 1521))
   )

listener2 = 
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = node2n2-vip)(PORT = 1521))
   )

all2 = 
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = node1n2-vip)(PORT = 1521))
     (ADDRESS = (PROTOCOL = TCP)(HOST = node2n2-vip)(PORT = 1521))
   )

修改LISTENER_NETWORKS参数值

alter system set LISTENER_NETWORKS='((NAME=net1)(LOCAL_LISTENER=listener1)(REMOTE_LISTENER=all1))','((NAME=net2)(LOCAL_LISTENER=listener2)(REMOTE_LISTENER=all2))' scope=both sid='*';

注意：LISTENER_NETWORKS参数指定的监听器不应该在LOCAL_LISTENER 和 REMOTE_LISTENER 参数中使用，否则，将发生交叉注册，并且连接将跨网络重定向

当 LISTENER_NETWORKS 参数已设置时，集群件 oraagent 会跳过 LOCAL_LISTENER 参数(Doc ID 1602809.1)

在Grid Infrastructure软件已升级到11.2.0.3.8GIPSU或11.2.0.4的环境中，数据库实例启动过程中，当spfile中已配置 listener_networks 的情况下，会跳过配置 LOCAL_LISTENER 参数。在这种情况下，客户端连接可能会收到TNS-12502 or TNS-12170 告警信息。

处理方案

alter system set local_listener='(ADDRESS=(PROTOCOL=TCP)(HOST=node1-vip)(PORT=1521))','(ADDRESS=(PROTOCOL=TCP)(HOST=node1n2-vip)(PORT=1521))' scope=both sid='inst1';
alter system set local_listener='(ADDRESS=(PROTOCOL=TCP)(HOST=node2-vip)(PORT=1521))','(ADDRESS=(PROTOCOL=TCP)(HOST=node2n2-vip)(PORT=1521))' scope=both sid='inst2';
alter system register;

• tnsnames.ora配置

  REMOTE_NET2 =
     (DESCRIPTION =
         (ADDRESS = (PROTOCOL = TCP)(HOST = node1n2-vip)(PORT = 1521))
         (ADDRESS = (PROTOCOL = TCP)(HOST = node2n2-vip)(PORT = 1521))
     )
  
  LOCAL_NET2 =
     (DESCRIPTION =
         (ADDRESS = (PROTOCOL = TCP)(HOST = node1n2)(PORT = 1521))
         (ADDRESS = (PROTOCOL = TCP)(HOST = node2n2)(PORT = 1521))
     )
  
  REMOTE_NET1 =
     (DESCRIPTION =
         (ADDRESS = (PROTOCOL = TCP)(HOST = node-scan)(PORT = 1521))
     )
  
  LOCAL_NET1 =
     (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = node1-vip)(PORT = 1521))
        (ADDRESS = (PROTOCOL = TCP)(HOST = node2-vip)(PORT = 1521))
     )
  

• 配置LISTENER_NETWORKS参数

  alter system set LISTENER_NETWORKS='((NAME=network1)(LOCAL_LISTENER=local_net1)(REMOTE_LISTENER=remote_net1))','((NAME=network2)(LOCAL_LISTENER=local_net2)(REMOTE_LISTENER=remote_net2))' scope=both sid='*';               
  
  alter system register;
  

在12C环境中配置方案

增加第2网络

su - grid
oifcfg iflist
oifcfg setif -global eth2/10.96.0.0:public


su - root
. /home/grid/.bash_profile
srvctl add network -netnum 2 subnet 20.96.0.0/255.255.255.0/eth2
srvctl config network -netnum 2
srvctl config network

添加VIP

su - root
. /home/grid/.bash_profile
srvctl add vip -node node1 -netnum 2 -address node1n2-vip/255.255.255.0/eth2
srvctl add vip -node node2 -netnum 2 -address node2n2-vip/255.255.255.0/eth2

添加监听器2

su - grid
srvctl add listener -listener listener2 -netnum 2 -endpoints "TCP:1528"

添加SCAN

su - root
. /home/grid/.bash_profile
srvctl add scan -scanname node2-scan -netnum 2

启动VIP服务

su - root
srvctl start vip -vip node1n2-vip
srvctl start vip -vip node2n2-vip

启动监听2服务

su - grid
srvctl start listener -listener listener2
srvctl status listener -listener listener2

启动scan2服务

su - root
srvctl start scan -netnum 2

添加scan2 listener服务并启动

su - grid
srvctl add scan_listener -netnum 2 -listener scanlsnr_2 -endpoints "TCP:1523"
srvctl start scan_listener -netnum 2

检查配置

srvctl config scan -netnum 2
srvctl status scan -netnum 2

附录

参考文档

• How to Configure A Second Listener on a Separate Network in Grid Infrastructure (Doc ID 1063571.1)

• 11gR2: Clusterware Oraagent doesn't set the local_listener when listener_networks is set in the spfile. (Doc ID 1602809.1)

• 12c: How to Create Additional SCAN/SCAN VIP (Doc ID 2138078.1)