ipv6,/etc/hosts配置文件解析问题

客户反馈，11.2.0.4,Linux7  GI集群软件，Oracle软件均已正常安装完毕。

DBCA建库,出现

VIP do not all share the same subnetwork,or the vip subnetwok does not match that of any public network interface in the cluster

一 、观察问题

查询集群资源状态

Cluster Resources
--------------------------------------------------------------------------------
ora.rac1.vip
      1        ONLINE  ONLINE       rac1
ora.rac2.vip
      1        ONLINE  ONLINE       rac2
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac1
ora.cvu
      1        ONLINE  ONLINE       rac1
ora.oc4j
      1        ONLINE  ONLINE       rac1
ora.scan1.vip
      1        ONLINE  ONLINE       rac1
[[email protected] ~]$
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.10.6.8)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
  Instance "+ASM1", status READY, has 1 handler(s) for this service...
The command completed successfully

[[email protected] ~]$ srvctl config vip -n rac2
VIP 存在: /rac2-vip/10.10.6.9/10.10.6.0/255.255.255.0/, 托管节点 rac2
[[email protected] ~]$ srvctl config vip -n rac1
VIP 存在: /rac1-vip/10.10.6.8/10.10.6.0/255.255.255.0/, 托管节点 rac1

$cat /etc/hosts
127.0.0.1 localhost
::1        rac1
10.10.6.6  rac1
10.10.6.7  rac2
10.10.6.8  rac1-vip
10.10.6.9  rac2-vip
10.10.6.10  rac-scan

从上述可以发现，Grid 监听无法正常注册Public ip信息资源ping rac1 可以得到的IP地址是127.XXX 建议，注释掉::1 后续的信息建议百度::1 得到的解释是使用Ipv6地址进行解析。重启crs OK

二、 疑问

11.2.0.4 是否支持RAC 使用ipv6???

2.1 查询12.1 官方文档

查询12.1 官方文档

Clusterware Administration and Deployment Guide

Network Address Configuration in a Cluster
You can configure a network interface for either IPv4, IPv6, or both types of addresses on a given network. If you configure redundant network interfaces using a third-party technology, then Oracle does not support configuring one interface to support IPv4 addresses and the other to support IPv6 addresses. You must configure network interfaces of a redundant interface pair with the same IP address type. If you use the Oracle Clusterware Redundant Interconnect feature, then you must use IPv4 addresses for the interfaces.

All the nodes in the cluster must use the same IP protocol configuration. Either all the nodes use only IPv4, or all the nodes use only IPv6, or all the nodes use both IPv4 and IPv6. You cannot have some nodes in the cluster configured to support only IPv6 addresses, and other nodes in the cluster configured to support only IPv4 addresses.

The local listener listens on endpoints based on the address types of the subnets configured for the network resource. Possible types are IPV4, IPV6, or both.
集群public 网卡，可以是ipv4,也可以是ipv6,但是不允许一个ipv4，另一个ipv6

查询12.1增强功能！！！说明11.2.0.4以前并不支持！

2.7.5 Oracle RAC Enhancements

The following sections describe new features for Oracle RAC.

2.7.5.1 Support for IPv6 Based IP Addresses for Oracle RAC Client Connectivity

Cluster nodes can be configured to use either IPv4 or IPv6 based IP addresses for the Virtual IPs (VIP) on the public network, while more than one public network can be defined for the cluster. Database clients and applications can connect to either IPv4 or IPv6 VIP addresses. The Single Client Access Name (SCAN) listener automatically redirects client connects to the appropriate database listener within a given subnet considering the IP protocol requested by the client. SCAN listeners can be defined for each subnet in the cluster.

IPv6 based IP addresses have become the latest standard for the information technology infrastructure in today‘s data centers. With this release, Oracle RAC and Oracle Grid Infrastructure support this standard for client connectivity.

See Also:

Oracle Clusterware Administration and Deployment Guide for details



支持基于IPv6的IP地址以实现Oracle RAC客户端连接


可以将群集节点配置为对公用网络上的虚拟IP（VIP）使用基于IPv4或IPv6的IP地址，而可以为群集定义多个公用网络。数据库客户端和应用程序可以连接到IPv4或IPv6 VIP地址。单一客户端访问名称（SCAN）侦听器会根据客户端请求的IP协议，自动将客户端连接重定向到给定子网内的相应数据库侦听器。可以为群集中的每个子网定义SCAN侦听器。注意：这里没用说私网，支持IPV6!!!

还是12.1 进一步说明 私网只允许IPV4！！！


https://docs.oracle.com/database/121/CWLIN/networks.htm#CIHCEIJH
5.4 IPv4 and IPv6 Protocol Requirements
Oracle Grid Infrastructure and Oracle RAC support the standard IPv6 address notations specified by RFC 2732 and global and site-local IPv6 addresses as defined by RFC 4193.


Cluster member node interfaces can be configured to use IPv4, IPv6, or both types of Internet protocol addresses. However, be aware of the following:


Configuring public VIPs: During installation, you can configure VIPs for a given public network as IPv4 or IPv6 types of addresses. You can configure an IPv6 cluster by selecting VIP and SCAN names that resolve to addresses in an IPv6 subnet for the cluster, and selecting that subnet as public during installation. After installation, you can also configure cluster member nodes with a mixture of IPv4 and IPv6 addresses.


If you install using static virtual IP (VIP) addresses in an IPv4 cluster, then the VIP names you supply during installation should resolve only to IPv4 addresses. If you install using static IPv6 addresses, then the VIP names you supply during installation should resolve only to IPv6 addresses.


During installation, you cannot configure the cluster with VIP and SCAN names that resolve to both IPv4 and IPv6 addresses. For example, you cannot configure VIPs and SCANS on some cluster member nodes to resolve to IPv4 addresses, and VIPs and SCANs on other cluster member nodes to resolve to IPv6 addresses. Oracle does not support this configuration.


Configuring private IP interfaces (interconnects): you must configure the private network as an IPv4 network. IPv6 addresses are not supported for the interconnect.


Redundant network interfaces: If you configure redundant network interfaces for a public or VIP node name, then configure both interfaces of a redundant pair to the same address protocol. Also ensure that private IP interfaces use the same IP protocol. Oracle does not support names using redundant interface configurations with mixed IP protocols. You must configure both network interfaces of a redundant pair with the same IP protocol.


GNS or Multi-cluster addresses: Oracle Grid Infrastructure supports IPv4 DHCP addresses, and IPv6 addresses configured with the Stateless Address Autoconfiguration protocol, as described in RFC 2462.


2.2 12.2官方文档


疑问？ 12.1 RAC不支持私网是IPV6?


12.2 开始支持RAC私网 IPV6。IPv4 and IPv6 Protocol Requirements
Oracle Grid Infrastructure and Oracle RAC support the standard IPv6 address notations specified by RFC 2732 and global and site-local IPv6 addresses as defined by RFC 4193.

Configuring Public VIPs

Cluster member node interfaces can be configured to use IPv4, IPv6, or both types of Internet protocol addresses. During installation, you can configure VIPs for a given public network as IPv4 or IPv6 types of addresses. You can configure an IPv6 cluster by selecting VIP and SCAN names that resolve to addresses in an IPv6 subnet for the cluster, and selecting that subnet as public during installation. After installation, you can also configure cluster member nodes with a mixture of IPv4 and IPv6 addresses.

If you install using static virtual IP (VIP) addresses in an IPv4 cluster, then the VIP names you supply during installation should resolve only to IPv4 addresses. If you install using static IPv6 addresses, then the VIP names you supply during installation should resolve only to IPv6 addresses.

During installation, you cannot configure the cluster with VIP and SCAN names that resolve to both IPv4 and IPv6 addresses. You cannot configure VIPs and SCANS on some cluster member nodes to resolve to IPv4 addresses, and VIPs and SCANs on other cluster member nodes to resolve to IPv6 addresses. Oracle does not support this configuration.

Configuring Private IP Interfaces (Interconnects)

You can configure the private network either as an IPv4 network or IPv6 network.

Redundant Network Interfaces

If you configure redundant network interfaces for a public or VIP node name, then configure both interfaces of a redundant pair to the same address protocol. Also ensure that private IP interfaces use the same IP protocol. Oracle does not support names using redundant interface configurations with mixed IP protocols. You must configure both network interfaces of a redundant pair with the same IP protocol.

GNS or Multi-Cluster Addresses

Oracle Grid Infrastructure supports IPv4 DHCP addresses, and IPv6 addresses configured with the Stateless Address Autoconfiguration protocol, as described in RFC 2462.

Note:Link-local and site-local IPv6 addresses as defined in RFC 1884 are not supported.
Parent topic: Configuring Networks for Oracle Grid Infrastructure and Oracle RAC




2.3 MOS 11.2.0.4 完全不支持IPV6???


疑问？   为什么说11g不支持ipv6,但是Oracle Grid可以正常安装呢？ 猜测IP地址是一个网段的，因此vip可以正常创建成功。 但是监听资源看起来也是正常的，但是对于DBCA的时候，需要往集群RAC中注册实例，需要使用vip进行注册，由于网卡使用的是ipv6,因此某些配置解析层面不兼容导致Oracle Public 网卡不支持。


观察MOS 单实例可以进行修改满足条件，RAC并未找到相关说明。


注意，如下MOS只是进一步说明Oracle 默认11g 监听规则是Ipv4   以及Oracle 11g release 2 支持ipv6 进行客户端登陆解析,12.1才真正支持RAC层面的连接。
Weblogic Server Fails to Start when Specifying IPV6 Address in JDBC URL for RAC Datasource (Doc ID 2402429.1)
SYMPTOMS
 WLS Server failing to start with invalid IP address when configuring the IPV6 address for the database in ONS section of datasource. Issue not seen with IPV4 address.
CAUSE
 Oracle Database 11g Release 2 supports IPv6 addressing for all features and components in single-instance mode, and Oracle Database 12c Release 1 extends that to allow client connectivity over public networks to Oracle Real Application Clusters (Oracle RAC).
You are trying to use an 11g driver/ons jar file with RAC and the statement makes it clear that it isn’t supported until 12.1.
The 11.x ons jar file isn’t parsing the ONS string to handle IPV6 addresses (looking for the last colon to separate out the port from the address string).
Refer: http://www.oracle.com/technetwork/database/enterprise-edition/oracledatabaseipv6sod-4007245.pdf

如下是11.2.0.4 单实例DB创建成功后，可以参考如下，改造使用IPV6的方法！ 但非RAC，改造并非本篇文档重点，不详细描述。Enabling IPv6 on Oracle Database Enterprise Edition (Doc ID 783570.1)Oracle Database - Standard Edition - Version 11.2.0.1 to 11.2.0.2.0 [Release 11.2]


PURPOSE
Introduction
IPv6 is designed with migration in mind. It is possible to run an Operating System with both IPv4 and IPv6 running at the same time. It is possible to configure the Oracle Database and Listener to use both IPv4 and IPv6, but this note covers how to setup the Oracle 11g Release 2 (11.2.0.0) software to use only IPv6 on a Linux system that has both IPv4 and IPv6 configured. The 11.2 release is the only one that supports the IPv6 protocol.


 



原文地址：https://www.cnblogs.com/lvcha001/p/12199251.html
				


				
时间： 2024-11-13 08:01:27 

		


		


	

	
	

		


		
ipv6,/etc/hosts配置文件解析问题的相关文章


								

		

			

                SSH学习之二 OpenSSH配置文件解析
			

		

		

									

				下面是对SSH配置文件的一些选项的分解说明,ssh_config是OpenSSH客户端的配置文件,sshd_config是OpenSSH服务器端的配置文件. ssh_config的内容如下: # This is the ssh client system-wide configuration file.  See ssh_config(5) for more information.  This file provides defaults for users, and the values c			

		

	

				

		

			

                nginx.conf配置文件解析(http、server、location proxy_pass)
			

		

		

									

				nginx.conf配置文件解析(http.server.location) 标签: nginxnginx-conf 2017-04-26 20:10 1031人阅读 评论(0) 收藏 举报 分类: Nginx(8) 版权声明:本文为博主原创文章,未经博主允许不得转载. nginx.conf文件在安装目录/conf目录下 1.定义Nginx运行的用户和用户组 user nginx nginx; 2.nginx进程数,建议设置为等于CPU总核心数 worker_processes 1; 3.全局错			

		

	

				

		

			

                Linux  网络配置文件解析
			

		

		

									

				Linux 网络配置文件解析 网络配置文件路径/etc/sysconfig/network-scripts/ifcfg-*     *代表网卡名 vim /etc/sysconfig/network-scripts/ifcfg-ens33 DEVICE=ens33 网卡名 NM_CONTROLLED=no 是否手NetworkManager工具的管理,建议no ONBOOT=yes 开机是否启动 BOOTPROTO=none 获取IP地址的方法,static 静态,dhcp自动费培 TYPE=E			

		

	

				

		

			

                Spring Boot干货系列：（二）配置文件解析
			

		

		

									

				Spring Boot:配置文件解析   前言 上一篇介绍了Spring Boot的入门,知道了Spring Boot使用"习惯优于配置"(项目中存在大量的配置,此外还内置了一个习惯性的配置,让你无需手动进行配置)的理念让你的项目快速运行起来.所以,我们要想把Spring Boot玩的溜,就要懂得如何开启各个功能模块的默认配置,这就需要了解Spring Boot的配置文件application.properties. 正文 Spring Boot使用了一个全局的配置文件applicat			

		

	

				

		

			

                linuxPAM认证配置文件解析
			

		

		

									

				1.PAM文件 /etc/pam.conf或者/etc/pam.d/ PAM配置文件/lib(64)/security/pam_*.so 可动态加载的PAM service module 2.配置文件格式 /etc/pam.conf:主配置文件 service    type    control    module-path    module-arguments /etc/pam.d/service:服务配置文件 type    control    module-path    modul			

		

	

				

		

			

                MySQL 5.6.24  线上版本配置文件解析
			

		

		

									

				线上MySQL服务器配置文件解析 innodb_buffer_pool_size 非常重要的一个参数,用于配置InnoDB的缓冲池,如果数据库中只有哦Innodb表,则推荐配置量为总内存的75% select  engine,round(sum(data_length + index_length)/1024/1024,1) as 'Total MB' from information_schema.tables  where table_schema not in ('information_			

		

	

				

		

			

                redis概述,特点,与Memached的不同,生产环境主从配置,redis配置文件解析
			

		

		

									

				Redis概述: 是一个基于Key-Value的持久化数据库存储,支持丰富的数据类型,用C语言编写,可基于内存又可持久化的日志型.Key-Value数据库,并提供多种语言的API Redis特点 1.Key-Value健值类型存储 2.支持数据可靠存储及落地 3.单进程单线程高性能服务器 4.单机qps(每秒查询率)可以达到10w 5.适合小数据量高速读写访问 Redis跟Memached的不同 1.Redis可以持久化数据存储 2.性能高很,Redis能支持超过10W每秒的读写频率 3.丰富的			

		

	

				

		

			

                SSH问题：系统启动时，spring配置文件解析失败，报”cvc-elt.1: 找不到元素 'beans' 的声明“异常
			

		

		

									

				现象:spring加载配置文件applicationContext.xml出错,抛出nested exception is og.xml.sax.SAXParseException; lineNumber: 12; columnNumber: 47; cvc-elt.1: 找不到元素 'beans' 的声明r的异常信息. 造成该异常原因有两种: 第一,配置文件头部配置的xsd版本信息不正确,造成解析时出错.spring头部xsd或dtd校验文件的查找分两步,第一先从本地jar包中找,如果找到则用			

		

	

				

		

			

                mybatis配置文件解析原理简略时序图
			

		

		

									

				配置文件解析主要用到XMLConfigBuilder(解析mybatis-config.xml) -->  XMLMapperBuilder(解析mapper.xml) --> XMLStatementBuilder(解析mapper.xml中cache, resultMap等配置信息) -->XMLScriptBuilder(解析mapper.xml中insert update select delete等sql语句节点) 1. 每个SQL语句节点都会生成一个SqlSource,每个S