package util
Type Members
- class ExecutionListenerManager extends Logging
Manager for QueryExecutionListener.
Manager for QueryExecutionListener. See
org.apache.spark.sql.SQLContext.listenerManager
. - class MapperRowCounter extends AccumulatorV2[Long, List[(Integer, Long)]]
An AccumulatorV2 counter for collecting a list of (mapper index, row count).
An AccumulatorV2 counter for collecting a list of (mapper index, row count).
- Since
3.4.0
- trait QueryExecutionListener extends AnyRef
The interface of query execution listener that can be used to analyze execution metrics.
The interface of query execution listener that can be used to analyze execution metrics.
- Note
Implementations should guarantee thread-safety as they can be invoked by multiple different threads.