案例:使用scan IP无法连接数据库
环境:Oracle RAC(11.2.0.3)
现象:通过scanIP连接数据库报错ORA-12514: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
1.查看scan listener状态,发现服务没有注册成功:
[grid@rac1 ~]$ lsnrctl status LISTENER_SCAN1
LSNRCTL for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production on 10-APR-2017 11:06:34
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN1
Version TNSLSNR for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production
Start Date 14-MAR-2017 23:19:53
Uptime 26 days 11 hr. 46 min. 41 sec
Trace Level off
Security ON: Local OS Authentication
SNMP ON
Listener Parameter File /oracle/app/grid_home/network/admin/listener.ora
Listener Log File /oracle/app/grid_home/log/diag/tnslsnr/jyrac2/listener_scan1/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.80)(PORT=1521)))
The listener supports no services
The command completed successfully
2.Oracle用户查看 remote_listener 参数配置:
SQL> show parameter remote_listener
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
remote_listener string
发现remote_listener参数为空,这显然是不正常的。
3.查看/etc/hosts的scan IP配置行:
cat /etc/hosts
192.168.1.80 jyrac-scan
4.oracle用户登录数据库,配置remote_listener参数:
SQL> alter system set remote_listener = 'jyrac-scan:1521' sid='*' scope=both;
SQL> alter system register;
5.再次查看scan listener状态,发现服务已经注册成功:
[grid@rac1 ~]$ lsnrctl status LISTENER_SCAN1
LSNRCTL for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production on 10-APR-2017 11:13:47
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN1
Version TNSLSNR for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production
Start Date 14-MAR-2017 23:19:53
Uptime 26 days 11 hr. 53 min. 54 sec
Trace Level off
Security ON: Local OS Authentication
SNMP ON
Listener Parameter File /oracle/app/grid_home/network/admin/listener.ora
Listener Log File /oracle/app/grid_home/log/diag/tnslsnr/jyrac2/listener_scan1/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.80)(PORT=1521)))
Services Summary...
Service "SERVICE2" has 1 instance(s).
Instance "testdb1", status READY, has 1 handler(s) for this service...
Service "testdb" has 2 instance(s).
Instance "testdb1", status READY, has 1 handler(s) for this service...
Instance "testdb2", status READY, has 1 handler(s) for this service...
Service "testdb2" has 1 instance(s).
Instance "testdb2", status READY, has 1 handler(s) for this service...
The command completed successfully
再次测试通过scanip连接数据库已经ok。
案例:使用scan IP无法连接数据库的更多相关文章
- RAC环境下SCAN IP可以PING通,1521端口也可以TELNET,但是无法建立数据库连接
昨天用户请求帮助处理一个问题:有个厂家需要连某个业务系统的数据库,网络上已经开通了权限,SCAN IP可以PING通,测试TELNET 1521端口也是正常.但是想通过SQLPLUS连接,总是会提示连 ...
- oracle rac scan ip 用途 原理
Oracle 11G R2 RAC增加了scan ip功能,在11.2之前,client链接数据库的时候要用vip,假如你的cluster有4个节点,那么客户端的tnsnames.ora中就对应有四个 ...
- 如何理解oracle 11g scan ip
如何理解oracle 11g scan ip 在11.2之前,client链接数据库的时候要用vip,假如你的cluster有4个节点,那么客户端的tnsnames.ora中就对应有四个主机vip ...
- RAC8——scan ip的理解
SCAN概念 先介绍一下什么叫SCAN,SCAN(Single Client Access Name)是Oracle从11g R2开始推出的,客户端可以通过SCAN特性负载均衡地连接到RAC数据库.S ...
- Oracle 11G R2 RAC中的scan ip 的用途和基本原理【转】
Oracle 11G R2 RAC增加了scan ip功能,在11.2之前,client链接数据库的时候要用vip,假如你的cluster有4个节点,那么客户端的tnsnames.ora中就对应有四个 ...
- Oracle 11G R2 RAC中的scan ip 的用途和基本原理
Oracle 11G R2 RAC增加了scan ip功能,在11.2之前,client链接数据库的时候要用vip,假如你的cluster有4个节点,那么客户端的tnsnames.ora中就对应有四个 ...
- [转]Oracle 11g RAC SCAN ip的原理及配置
原文地址:http://tiany.blog.51cto.com/513694/1421917/ Oracle 11g RAC SCAN ip的原理及配置 Oracle 11g RAC网格即插即用 ...
- Oracle 11g RAC客户端使用SCAN IP无法连接问题
Oracle 版本:11.2.0.1.0 客户端:Windows Server 2003/PLSQL Developer Oracle服务器端的ip设置如下: ##公网ip 192.168.135.2 ...
- Oracle 11gR2 RAC修改SCAN IP
一.查看当前环境: # grid用户 检查scan-ip地址的配置 [grid@node1 ~]$ srvctl config scan SCAN name: scan-cluster.com, Ne ...
随机推荐
- sencha touch TabPanel 加入导航按钮(向左向右按钮) 以及Carousel插件(2014-11-7)
Carousel插件代码: /* * TabPanel的Carousel功能插件 * 取至 * https://github.com/VinylFox/Ext.ux.touch.SwipeTabs * ...
- ELK系列二:Elasticsearch的架构原理和配置优化
1.Elasticsearch的数据组织架构 1.1.Elasticsearch结构概念 集群(cluster):拥有相同cluster-name的elasticsearch结点的集合(每个结点其实就 ...
- CentOS 安装PostregSQL9.2 同时出现pg安装错误
错误: Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/local/bin ...
- 一辈子只有1次成为BAT的机会,你如何把握?
本文转自:http://www.fmi.com.cn/index.php?m=content&c=index&a=show&catid=9&id=614308 感谢作者 ...
- 【CF845F】Guards In The Storehouse 插头DP
[CF845F]Guards In The Storehouse 题意:一个n*m的房间,每个格子要么是障碍要么是空地.对于每个空地你可以选择放或者不放守卫.一个守卫能保护到的位置是:他右面的一行空地 ...
- 【CF908E】New Year and Entity Enumeration 位运算+DP
[CF908E]New Year and Entity Enumeration 题意:给定$M=2^m-1$,我们称一个集合S是好的,当且仅当它满足:1.$\forall a\in S,a\ \ma ...
- LCA最近公共祖先(least common ancestors)
#include"stdio.h" #include"string.h" #include"iostream" #include" ...
- 利用 :first-child 和 :nth-last-child 确定子元素数目
读<css揭秘>时,发现选择器的神奇作用,可以确定子元素数目,比如: li:first-child:nth-last-child(2),li:first-child:nth-last-ch ...
- Mongodb之使用rpm包安装配置启动
下载rpm包 wget https://mirrors.aliyun.com/mongodb/yum/redhat/7Server/mongodb-org/3.2/x86_64/RPMS/mongod ...
- 1.9TF的过拟合-dropout
不带dropout程序并通过tensorboard查看loss的图像 """ Please note, this code is only for python 3+. ...