Package org.apache.pig.backend.hadoop.executionengine.physicalLayer.util

Added Classes
MonitoredUDFExecutor	MonitoredUDF is used to watch execution of a UDF and kill it if the UDF takes an exceedingly long time.
MonitoredUDFExecutor. ErrorCallback	UDF authors can optionally extend this class and provide the class of their custom callbacks in the annotation to perform their own handling of errors and timeouts.

 

Changed Classes
PlanHelper	Utility class with a few helper functions to deal with physical plans.