Improve Dynamometer compatibility with the 2.x line

[xkrogen]

Though Dynamometer supports executing a few different versions of Hadoop, it will currently only run on a 2.7 cluster. This tracks adding support for the rest of the 2.x line.

[rcuso]

Hi Erik,

I commented on another (closed) thread and then I came across this one (so pls ignore the other).

I'm looking to use this with hdp-2.6.5, which runs hadoop 2.7.3. I see it's compatible starting at 2.7.4, but they backport a lot of patches into hdp. Wondering if you know if it's compatible or if you know of specific patches that bring Hadoop 2.7.3 up to a compatible level.

Thx - Rob

[rcuso]

Actually, I saw your comment on issue 72 regarding HDFS-2580 and it appears to be pulled into hdp-2.6.3+ (Hadoop 2.7.3). We'll give it a try.