The summary view displays a high-level overview of the performance trends on the selected Hadoop system. Mouse over a graph to see an information balloon containing detailed information about the data point for the interval. The right-most bar provides the current reading.
The Current column shows the current reading. If you are using the Rewind functionality, the column displays the most recent reading in the time frame defined by Rewind.
The Max column shows the maximum value in the selected time frame. This is the actual reading, not a calculated average.