SerializedShuffleHandle¶
SerializedShuffleHandle
is a BaseShuffleHandle that SortShuffleManager
uses when canUseSerializedShuffle (when requested to register a shuffle and BypassMergeSortShuffleHandles could not be selected).
SerializedShuffleHandle
tells SortShuffleManager
to use UnsafeShuffleWriter when requested for a ShuffleWriter.
Creating Instance¶
SerializedShuffleHandle
takes the following to be created:
- Shuffle ID
- ShuffleDependency
SerializedShuffleHandle
is created when:
SortShuffleManager
is requested for a ShuffleHandle (for the ShuffleDependency)