Delete Images on DNCA Side

When the DNCA is configured to be in BusinessIT mode, some image content types can be captured and passed to the Windows™ pipeline.In the pipeline, they were typically dropped by using the DelImages session agent.

  • For more information about BusinessIT mode, see Capture Mode.
  • For more information about the DelImages feature for the Windows™ pipeline, see "Data Drop Session Agent" in the Unica Discover Configuration Manual.

The DNCA now provides the DelImages functionality in the DNCA pipeline. When DelImages is enabled in the DNCA, the volume of data that is captured, processed, and transferred to the Windows™ server is reduced.

Note: To ensure the capture of image content throughout your Discover environment, this setting must be consistently applied through the Pipeline tabs across all DNCA instances.

If a hit meets the following criteria, then the hit is identified as an image hit and is dropped:

  • Delete Images on DNCA side is enabled.
  • The file extension for the response is listed on the Excluded File Extensions list. See Excluded File Extensions.
  • The following criteria is met:
    1. DNCA CaptureType=3 and (StatusCode = 200 or StatusCode = 304)
      • The previous criterion determines if the DNCA is in BusinessIT mode (CaptureType=3) and an image request is returned with an "okay" status or a Not Modified status (StatusCode =304).

If the previous criteria are met, then the image hit is dropped.

  • When this feature is enabled, if CaptureType=1 and the response content type is listed in the Include Extension list, then both the request and the response are captured.

In the Statistics tab, the total count of dropped image hits is displayed in the Total dropped due to businessIT mode and DelImages feature set metric. See Stats per Instance.