根據周亮ORACLE DBA實戰裡的一個實驗做的。
環境描述：兩節點10G RAC環境，節點2宕機。此時客戶端通過原節點2 VIP地址無法連接至數據庫。客戶端較多修改不便需要在服務器上進行修改。
1.檢查節點1監聽狀態、/etc/hosts 、IP信息
[oracle@rac1 admin]$ ifconfig
eth0 Link encap:Ethernet HWaddr 08:00:27:93:AD:F2
inet addr:192.168.57.219 Bcast:192.168.57.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:112453 errors:0 dropped:0 overruns:0 frame:0
TX packets:2496 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:68881461 (65.6 MiB) TX bytes:332010 (324.2 KiB)
eth0:1 Link encap:Ethernet HWaddr 08:00:27:93:AD:F2
inet addr:192.168.57.221 Bcast:192.168.57.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
eth0:2 Link encap:Ethernet HWaddr 08:00:27:93:AD:F2
inet addr:192.168.57.222 Bcast:192.168.57.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
eth1 Link encap:Ethernet HWaddr 08:00:27:33:81:45
inet addr:192.168.58.1 Bcast:192.168.58.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1750 errors:0 dropped:0 overruns:0 frame:0
TX packets:150571 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:150427 (146.9 KiB) TX bytes:130002468 (123.9 MiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:82328 errors:0 dropped:0 overruns:0 frame:0
TX packets:82328 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:13965995 (13.3 MiB) TX bytes:13965995 (13.3 MiB)
[oracle@rac1 admin]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
192.168.57.219 rac1.bys.com rac1
192.168.57.220 rac2.bys.com rac2
192.168.57.221 rac1-vip
192.168.57.222 rac2-vip
192.168.58.1 rac1-priv
192.168.58.2 rac2-priv
[oracle@rac1 admin]$ lsnrctl status LISTENER_RAC1
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 09-APR-2014 23:22:19
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=rac1-vip)(PORT=1521)(IP=FIRST)))
STATUS of the LISTENER
------------------------
Alias LISTENER_RAC1
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 09-APR-2014 23:19:51
Uptime 0 days 0 hr. 2 min. 27 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/dbhome_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/product/dbhome_1/network/log/listener_rac1.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.57.221)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.57.219)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status BLOCKED, has 1 handler(s) for this service...
Service "+ASM_XPT" has 1 instance(s).
Instance "+ASM1", status BLOCKED, has 1 handler(s) for this service...
Service "RAC" has 1 instance(s).
Instance "RAC1", status READY, has 2 handler(s) for this service...
Service "RAC_XPT" has 1 instance(s).
Instance "RAC1", status READY, has 2 handler(s) for this service...
The command completed successfully
[oracle@rac1 admin]$ crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora....C1.inst application ONLINE ONLINE rac1
ora....C2.inst application ONLINE OFFLINE
ora.RAC.db application ONLINE ONLINE rac1
ora....SM1.asm application ONLINE ONLINE rac1
ora....C1.lsnr application ONLINE ONLINE rac1
ora.rac1.gsd application ONLINE ONLINE rac1
ora.rac1.ons application ONLINE ONLINE rac1
ora.rac1.vip application ONLINE ONLINE rac1
ora....SM2.asm application ONLINE OFFLINE
ora....C2.lsnr application ONLINE OFFLINE
ora.rac2.gsd application ONLINE OFFLINE
ora.rac2.ons application ONLINE OFFLINE
ora.rac2.vip application ONLINE ONLINE rac1
################################################################
2.修改節點1的監聽配置文件listener.ora----修改前要備份下
原監聽配置文件：
[oracle@rac1 admin]$ cat listener.orabak
# listener.ora.rac1 Network Configuration File: /u01/app/oracle/product/dbhome_1/network/admin/listener.ora.rac1
# Generated by Oracle configuration tools.
LISTENER_RAC1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip)(PORT = 1521)(IP = FIRST))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.57.219)(PORT = 1521)(IP = FIRST))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
)
)
######修改後：--修改的內容就是把(IP = FIRST)去掉，這樣監聽會運行在主機的所有IP上（這裡是192.168.57.219、兩個VIP：192.168.57.221、192.168.57.222）。
[oracle@rac1 admin]$ cat listener.ora
# listener.ora.rac1 Network Configuration File: /u01/app/oracle/product/dbhome_1/network/admin/listener.ora.rac1
# Generated by Oracle configuration tools.
LISTENER_RAC1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1)(PORT = 1521))
)
(ADDRESS_LIST =
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
)
)
################
查看tnsnames.ora文件：
[oracle@rac1 admin]$ cat tnsnames.ora
RAC2 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = RAC)
)
)
RAC1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = RAC)
)
)
查看監聽狀態：
lsnrctl stop LISTENER_RAC1
lsnrctl start LISTENER_RAC1
[oracle@rac1 admin]$ lsnrctl status LISTENER_RAC1
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 09-APR-2014 22:48:11
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=rac1)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER_RAC1
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 09-APR-2014 22:46:50
Uptime 0 days 0 hr. 1 min. 20 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/dbhome_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/product/dbhome_1/network/log/listener_rac1.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rac1.bys.com)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status BLOCKED, has 1 handler(s) for this service...
Service "+ASM_XPT" has 1 instance(s).
Instance "+ASM1", status BLOCKED, has 1 handler(s) for this service...
Service "RAC" has 1 instance(s).
Instance "RAC1", status READY, has 2 handler(s) for this service...
Service "RAC_XPT" has 1 instance(s).
Instance "RAC1", status READY, has 2 handler(s) for this service...
The command completed successfully
#連接測試
[oracle@rac1 admin]$ sqlplus system/system@rac2
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Apr 9 22:43:32 2014
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> select instance_name from v$instance;
INSTANCE_NAME
----------------
RAC1
SQL> exit
使用192.168.57.219、192.168.57.221、192.168.57.222、192.168.58.1這四個IP均可以登陸：--也驗證了listener.ora中(HOST = 主機名會運行在主機的所有IP上。
[oracle@rac1 admin]$ sqlplus system/
[email protected]:1521/rac
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Apr 9 22:53:30 2014
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> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options
[oracle@rac1 admin]$ sqlplus system/
[email protected]:1521/rac
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Apr 9 22:53:37 2014
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> ei^H
SP2-0042: unknown command "e" - rest of line ignored.
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options
[oracle@rac1 admin]$ sqlplus system/
[email protected]:1521/rac
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Apr 9 22:53:46 2014
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>
[oracle@rac1 admin]$ sqlplus system/
[email protected]:1521/rac
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Apr 9 22:55:31 2014
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> exit
