When you bring a group of hard working, creative people together, surprising things tend to happen. Try to use Google Maps for walking directions from the Shire to Mordor, and you’ll be warned, “one does not simply walk into Mordor.” Or with a unix based system (like Linux or Mac OSX) open the terminal and type emacs -batch -l dunnet to open the text-based adventure game dunnet. We could go on and on about these easter eggs, but as with their physical counterparts, searching is half the fun.
So now you’re probably wondering – what sort of easter eggs are hidden in Datameer? While this one might not be as fun as the examples above, I promise its a hell of a lot more useful to you. We’ve a hidden page that helps you monitor your Datameer instance – everything from your basic user information, to reports about your Hadoop configuration, down to the nitty gritty of information and statistics about various caches used by Datameer.
To reach this page, simply type http://<Datameer Server IP>:<port>/dev into your web browser. There you’ll see the basic info concerning your instance of Datameer: the current user, server address and port as well as information concerning the current Java Virtual Machine (JVM) running Datameer.
But get past that and there’s the really interesting stuff:
Recently completed threads Datameer has performed.
Reports concerning the Hadoop configurations currently set both in the conductor and on the cluster.
The job scheduler provides general information about its current activity and how long it takes tasks to run.
The current state of Datameer’s housekeeping service.
Information and statistics on the various caches used by Datameer.
Stats concerning the queries made by Datameer to the underlying database.
Geeky, sure, but the fact is this ‘easter egg’ is intended to help you understand why a job might be taking longer than expected, or it could help if you have a large cluster and you need more metrics than are available under the standard Administration tab.
We know its the winter holidays but… Happy Easter? 🙂