Minor Description
In the Web UI, columns displaying sizes in bytes do not sort correctly; they are sorted by the string value instead of the number of bytes, megabytes, etc. It's possible to add a sort key in the HTML that the table sorter plugin will recognize and sort by.
I observed this issue on the "Shuffle Write" column in a detailed stage view in the application Web UI, but it might also affect other column like "Shuffle Read". I've attached a screenshot illustrating the problem.
SPARK-801 was a similar issue, except with Time columns.
