Installing Perl modules on CentOS and RHEL

Some Perl modules are not included by default with the Perl package for Linux.

About this task

During WFA installation, the WFA installer verifies that all of the Perl modules are available in the system, and then proceeds when this requirement is met. You must install the Perl modules before installing OnCommand Workflow Automation (WFA).

Note: The WFA installer attempts to install the perl modules automatically if the perl-modules are available in the yum repositories configured on the system. If the perl modules are not available, the installer prompts the user to install the perl modules manually. The one exception is the "perl-core" module. This module is not installed on the system automatically even if it is available in the yum repositories configured on the system. This is a known issue.

Table 1. Required Perl modules for WFA
Perl Module	RPM Package Name
Perl core modules	perl-core
DBI	per-DBI
XML::DOM	perl-XML-DOM
Term::ReadKey	perl-TermReadKey
HTTP::Request	perl-libwww-perl
XML::LibXML perl-XML-LibXML	perl-XML-LibXML
DBD::mysql	perl-DBD-MySQL
URI::URL	perl-URI
HTTP::Response	perl-libwww-perl
HTTP::Headers	perl-libwww-perl
Net::SSLeay	perl-Net-SSLeay
URI::Escape	perl-URI
LWP::Protocol::https perl-LWP-Protocol-https	perl-LWP-Protocol-https
XML::Parser	perl-XML-Parser
LWP::UserAgent	perl-libwww-perl
Net::LDAP	perl-LDAP
Date::Calc	perl-Date-CalcXML

Procedure

Log in to the Linux server as a root user.
Verify that all of the Perl modules required for WFA are installed on the system: ./WFA-4.2.0.0.0.bin -l
If any Perl modules are not detected, check whether they are available in the configured repository: yum search Perl-module-name
If the DBD::mysql module is not detected: yum search perl-DBD-MySQL
If any Perl modules are not in the repository, configure the repository that contains the Perl module, or download the Perl module from the Internet.
Install any missing Perl modules from the configured repository: yum -y install Perl-module-name
Install the DBD::mysql module from the configured repository: yum -y install perl-DBD-MySQL