2 more Hadoop Nodes migrated

Hi. H10 and H17 have been moved to ci-hadoop.a.o -- *Gavin McDonald* Systems Administrator ASF Infrastructure Team

[IMPORTANT] - 2 more HADOOP nodes migrated over to ci-hadoop

Hi, I have moved over 2 more H nodes (H18,H19) making a total of 4 nodes now on https://ci-hadoop.apache.org. That leaves 14 'HADOOP' labelled nodes on builds.apache.org. On Sunday I'm going to move 2 more nodes from builds.apache.org to ci-hadoop.apache.org. And I'll keep moving 2 nodes at a tim