In common execution of a spark job, executor nodes may receive cache invalidate information
and flush executor's own cache store in that node, without explicitly notifying driver node
to invalidate cache information. This class is used for accumulating cache invalidate event
and make driver node easier to decide when to update it's PD-cache.
Linear Supertypes
AccumulatorV2[CacheInvalidateEvent, Seq[CacheInvalidateEvent]], Serializable, Serializable, AnyRef, Any
A cache invalidate request collector.
In common execution of a spark job, executor nodes may receive cache invalidate information and flush executor's own cache store in that node, without explicitly notifying driver node to invalidate cache information. This class is used for accumulating cache invalidate event and make driver node easier to decide when to update it's PD-cache.