Understanding the Perl environment

The Netezza appliance has multiple Perl installations that support various system functions. One installation is part of the core Netezza system. Another is installed on the analytics host, and a third on the analytics SPU. The Perl adapter framework assures that the library modules install into the analytics Perl components, making them available for user-written Perl adapter code. In other words, it installs the modules so that the host and SPU versions of Perl can find and use them. By using the framework, you also produce an installation in which libraries are safe across installs. (As with every AE, you still must reregister modules when you upgrade or downgrade the software.)