If you are trying to install any Perl Modules on a CageFS-based server, you will need to force a CageFS update once your module installations have been completed.
In the following example of a module installation, we are using cpan to install DBI:
root@server [~]# cpan DBI
CPAN: Storable loaded ok (v2.20)
Reading '/root/.cpan/Metadata'
Database was generated on Tue, 11 Mar 2014 16:41:02 GMT
CPAN: Module::CoreList loaded ok (v2.18)
DBI is up to date (1.631).
root@server [~]# cpan DBD::mysql
CPAN: Storable loaded ok (v2.20)
Reading '/root/.cpan/Metadata'
Database was generated on Tue, 11 Mar 2014 16:41:02 GMT
CPAN: Module::CoreList loaded ok (v2.18)
DBD::mysql is up to date (4.026).Without running either of the below commands after we’ve finished, the Perl modules are not available for users to access within their respective cPanel accounts.
/usr/bin/cagefsctl --force-updateOR
/sbin/cagefsctl --force-update