The "pitfalls" and key points encountered during Oracle RAC installation (2), oraclerac

The "pitfalls" and key points encountered during Oracle RAC installation (2), oraclerac

(1) install dependency packages

In addition to system configuration parameters, installing Oracle in Linux is another Trivial operation.

This installation encountered several package problems:

(A) rpm-Uvh gcc-4 * tips:

02. error: Failed dependencies:

03. cloog-ppl> = 0.15 is needed by gcc-4.4.7-4.el6.x86_64

04. cpp = 4.4.7-4. el6 is needed by gcc-4.4.7-4.el6.x86_64

It not only indicates that two dependency packages are required, but also the corresponding version is required,

Cloog-ppl must be later than or equal to version 0.15

Cpp requires version 4.4.7-4. el6

Then install the SDK based on the version requirements:

01.rpm -ivh cloog-ppl-0.15.7-1.2.el6.x86_64.rpm   02.warning: cloog-ppl-0.15.7-1.2.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEY  03.Preparing...                ########################################### [100%]  04.   1:cloog-ppl              ########################################### [100%]  05.  06.rpm -ivh cpp-4.4.7-4.el6.x86_64.rpm   07.warning: cpp-4.4.7-4.el6.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY  08.Preparing...                ########################################### [100%]  09.   1:cpp                    ########################################### [100%]  01.rpm -ivh gcc-4.4.7-4.el6.x86_64.rpm   02.warning: gcc-4.4.7-4.el6.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY  03.Preparing...                ########################################### [100%]  04.   1:gcc                    ########################################### [100%]

(B) Oracleasm

Because the RAC environment is installed, the grid needs asmlib. Install:

Oracleasm-support

Oracleasm

Oracleasmlib

Introduction to asmlib on the official website:

Http://www.oracle.com/technetwork/server-storage/linux/driver-matrix-085611.html

For oracleasm, Oracle Linux 6 has compiled it into the kernel and does not need to be installed. Therefore, you only need to install oracleasm-support. The official website is described as follows:

On the Oracle Linux 6 CD, there is a oracleasm-support package that can be rpm installed, and the version is a oracleasm-support-2.1.5-1.el6.x86_64.

It seems that if the RedHat version is used, it may take some twists and turns.

(This blog introduces how to install asmlib in RedHat: http://blog.itpub.net/23135684/viewspace-1129552)

 

(2) set up YUM proxy in Linu

If the local machine requires a proxy to access the Internet, you can modify the/etc/yum. conf configuration file:

Add the following line to the http Proxy

Proxy = http: // ip address: Port

Add the following line to the ftp Proxy // No trial

Proxy = ftp: // ip address: Port

Save and exit (the above content cannot be placed at the beginning of the file)

You can also run this command in the command line.

Export http_proxy = "IP Address: Port"

 

(3) wget proxy settings in Linux

You can create a. wgetrc file in the local home path and edit the file as follows:

Http_proxy = IP: Port

Ftp_proxy = IP: Port

Use_proxy = on

Wait = 15

Then wget http: // ip/filename is OK.

 

(4) oracle-rdbms-server-11gR2-preinstall quick installation package

Oracle Linux 6 provides a oracle-rdbms-server-11gR2-preinstall package to simplify the configuration of various dependency packages downloaded, installed, parameters, and environment variables during Oracle 11gR2 installation, which can do the following:

Download and install various dependent packages

Create an Oracle user and a group

Modify/etc/sysctl. conf Kernel Parameters

Set the/etc/security/limits. conf file

Set numa = off on a 64-bit host

Installation path:

[Root @ rac1 ~] # Cd/etc/yum. repos. d/

[Root @ rac1 yum. repos. d] # wget http://public-yum.oracle.com/public-yum-ol6.repo

Then you can open the downloaded configuration file:

# Cat public-yum-ol6.repo [root @ rac1 yum. repos. d] #

In the OS version to be modified, the enabled value is changed from 0 to 1. You can download the corresponding version:

[Ol6_u2_base]

Enabled = 0

[Root @ rac1 ~] # Yum install oracle-rdbms-server-11gR2-preinstall

You can start to download, install, set parameters, and set environment variables for the corresponding version of the dependent package. You can verify files such as/etc/sysctl. conf and/etc/security/limits. conf.

In fact, we can see from the configuration file, the corresponding version of the dependency package download URL: http://public-yum.oracle.com/repo/OracleLinux/OL6/

If it is not too troublesome, you can find all the dependent packages of the corresponding version through the page. From the page, you will find that oracle-rdbms-server-11gR2-preinstall packages are not available for versions earlier than U2.

The execution conclusions of U2 are as follows:

[root@bisal yum.repos.d]# yum install oracle-rdbms-server-11gR2-preinstallLoaded plugins: refresh-packagekit, securityInstallMedia                                             | 3.7 kB     00:00 ... InstallMedia/primary_db                                  | 3.2 MB     00:00 ... http://public-yum.oracle.com/repo/OracleLinux/OL6/UEK/base/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://public-yum.oracle.com/repo/OracleLinux/OL6/UEK/base/x86_64/repodata/repomd.xml: (28, 'connect() timed out!')Trying other mirror.Error: Cannot retrieve repository metadata (repomd.xml) for repository: ol6_UEK_base. Please verify its path and try again

(5) configure the local YUM Source

[Root @ rac02 ~] # Mount/dev/cdrom/mnt

Mount: block device/dev/sr0 is write-protected, mounting read-only

Edit the public-yum-ol6.repo or ULN-base.repo file in the/etc/yum. repos. d directory and modify all enabled = 0. Create a file with the suffix "repo", for example, olinux6.repo:

[OLINUX]

Name = Oracle Linux 6 x86_64

Baseurl = file: // mnt/Server

Enabled = 1

Gpgcheck = 0

Clear the original yum information, yum clean all, and install the dependency package:

yum install elfutils-libelf-devel

(6) configure the/etc/hosts file of the host

My configuration file is as follows:

#public192.168.11.200  rac1.bisal          rac1192.168.11.210  rac2.bisal          rac2#private10.0.0.200          rac1-priv.bisal  rac1-priv10.0.0.210          rac2-priv.bisal  rac2-priv#virtual192.168.11.201 rac1-vip.bisal    rac1-vip192.168.11.211 rac2-vip.bisal    rac2-vip#scan192.168.11.199 rac-scan.bisal    rac-scan

The full name of the hosts file is the static table lookup for host name (host name query static table ). In Linux, if there is no domain name resolution server, this file will be used to resolve the IP address corresponding to a host name. Format: "IP" "host name/domain name" "host alias ". The host name is usually used in the LAN.

In the RAC environment, four IP addresses, public IP, private IP, virtual IP, and scan IP are configured.

To Be Continued...

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