The UPDATE_MODE pass-through specifies which type of data update is being performed by the pipeline.
The UPDATE_MODE pass-through is optional. The three values for this
pass-through are
STATELESS,
STATEFUL, and
PARTIAL. Note that if this pass-through is
omitted, the term extractor performs a
STATELESS update.
Keep the following notes in mind when using the update modes:
STATELESSmode is recommended for sites that perform baseline updates exclusively.STATEFULmode is recommended for sites that implement partial updates. That is, the baseline update pipeline will useSTATEFULmode while the partial update pipeline will usePARTIALmode.The
STATELESSandSTATEFULmodes do not need pre-existing state files in order to run.The
PARTIALmode does require the existence of the term state files. Therefore, aSTATEFULupdate must be performed before aPARTIALupdate.

