Management of PML index

PML files must be stored in directories pointed by the PMLLIB environment variable and/or the setting stored in the CONFIG Database or Databases. Refer to Configuration Database for further information.

Traditionally, when an AVEVA product is started up, PML scans each directory in the PMLLB search path and creates a file named pml.index in each directory.

This index file contains a list of all the PML files in all directories under the directory given in the PMLLB search path. All the PML files listed in the pml.index files are loaded automatically when the product is started up.

To add a new PML file (after the AVEVA product has been started up) PML will need to rebuild its file index by giving the command: pml rehash. This command scans all the files and updates the pml.index file.

From the release of AVEVA Administration 1.9.4, the pml index file is no longer required or produced and is now managed in memory and any changes to PML files and subsequent issuing of the pml rehash command will update the memory.

Note:
Currently the only product(s) using this method of pml index mangement is the AVEVA Engineering 15.5 series and above.