Java implementation of the Rabit tracker to coordinate distributed workers.
As a wrapper of the Python Rabit tracker, this implementation does not handle timeout for both
start() and waitFor() methods (i.e., the timeout is infinite.)
For systems lacking Python environment, or for timeout functionality, consider using the Scala
Rabit tracker (ml.dmlc.xgboost4j.scala.rabit.RabitTracker) which does not depend on Python, and
provides timeout support.
The tracker must be started on driver node before running distributed jobs.
Nested Class Summary
Nested classes/interfaces inherited from interface ml.dmlc.xgboost4j.java.IRabitTracker