To accomplish the task of emailing a transformation's log as a file attachment, a two-step process within the PDI job is required. First, the Transformation job entry must be configured to write its execution log to a physical file. This is done using the 'Specify logfile' option within the entry's properties (Option B). Second, the subsequent Mail job entry must be configured to find and attach this specific file. This is achieved by using the 'Attach files to message' option with the file type set to 'General' (Option D), which allows you to provide the exact path to the log file created in the first step.

A. While attaching the 'Log' file type is a valid method, it attaches the log from the previous entry's result stream directly and does not require the log to be written to a file first (Option B). It represents an alternative, single-step solution and does not form a logical pair with the other options.

C. This option configures logging to a database table. The requirement is to attach a file to an email, so logging to a database is not the correct mechanism for this specific scenario.

1. Hitachi Vantara Documentation - Transformation Job Entry: The "Logging settings Tab" section describes the 'Specify logfile' option

which enables writing the transformation's log to a designated file. This supports the correctness of Option B.

Source: Hitachi Vantara Pentaho Documentation

"Transformation" job entry reference. (Specific documentation version may vary

but this feature is core to the PDI job entry).

2. Hitachi Vantara Documentation - Mail Job Entry: The "Attached Files Tab" section details the different file types that can be attached. It specifies that the 'General' file type is used to "Attach a static file from a specified location

" which is necessary to attach the file created by the Transformation entry. It also describes the 'Log' file type as attaching "the logging text of the previous job entry

" confirming it as a distinct

alternative method. This supports the correctness of Option D and explains why Option A is part of a different solution path.

Source: Hitachi Vantara Pentaho Documentation

"Mail" job entry reference.