hello I¹m looking at integrating my own process into the Ambari Jobs¹ view and I can see how the web side of things works .. i.e. the view makes REST calls to the server which in turn results in a query to postgres to get the job stats but what is not so clear is how those job/task stats get into postgres in the first place. Q: for example, with MapReduce .. is Hadoop/JobTracker somehow inserting the job/task info into postgres directly? Or is there some other mechanism in Ambari that is listening for map reduce jobs/tasks to start/finish?
any hints on where to look in the source tree would be greatly appreciated TIA
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