FetchAs

The FetchAs setting on an input card specifies how the data will be retrieved when the map is executed.

Value
Description
Integral
Data is retrieved once (in its totality) from the data source. If another input is set to Burst mode, the same integral data for this card is used for each burst. When an input FetchAs is integral, the Source is requested to retrieve data one time for the entire mapping.
Burst
Data is retrieved in incremental units from the data source. The unit of data retrieved for each burst is adapter-specific, and is specified as the Source FetchUnit. When an input FetchAs is Burst, the data is retrieved once per burst.

When an input FetchAs is Integral, any failure action causes the entire map to fail.

  • When FetchAs is Integral, the maximum size of a file that a map can process is 2 GB.
  • When FetchAs is Burst, the maximum size of a file that a map can process is much larger, but a maximum of 2 GB per burst.