To 1.7

TODOSimply download the latest JDK7 RPM from the Oracle website, install on all nodes (check that "/usr/java/latest" and "/usr/java/default" now point to the right directory, and restart "infinit.e-index-engine" and "tomcat6-interface-engine" services (the latter only on API nodes, the former typically on both)

To 1.8

TODO

Keeping Hadoop in sync

...

Go the "mapreduce" service configuration pages (described here), and in the "MapReduce Service Environment Safety Valve" text box, add the line (eg):

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