There are two log statements being logged at an INFO level that are unnecessarily filling up JT logs. This is making it difficult to debug issues on large cluster systems.
The two statements identified are the following:
INFO org.apache.hadoop.mapred.JobInProgress: No reduces to schedule for <jobid>
INFO org.apache.hadoop.mapred.ResourceEstimator: completedMapsUpdates:22 completedMapsInputSize:656 completedMapsOutputSize:6299