Class DataSamplingBehavior (0.9.0) 

DataSamplingBehavior(value)

The following enum defines what to sample for a running job.

Enums
Name Description
DATA_SAMPLING_BEHAVIOR_UNSPECIFIED If given, has no effect on sampling behavior. Used as an unknown or unset sentinel value.
DISABLED When given, disables element sampling. Has same behavior as not setting the behavior.
ALWAYS_ON When given, enables sampling in-flight from all PCollections.
EXCEPTIONS When given, enables sampling input elements when a user-defined DoFn causes an exception.