SerializedShuffleHandle — Marker Interface for Serialized Shuffle Handles
SerializedShuffleHandle
is a BaseShuffleHandle with no additional methods or fields and serves only to identify the choice of a serialized shuffle.
Like BaseShuffleHandle, SerializedShuffleHandle
takes shuffleId
, numMaps
, and a ShuffleDependency.
SerializedShuffleHandle
is created when SortShuffleManager
is requested for a ShuffleHandle
(for a ShuffleDependency
) and the conditions hold (but for BypassMergeSortShuffleHandle
do not which are checked first).