Wikia/app — pull request #5684 by macbre (2014-12-09 12:17:52+00:00)
Title: CON-2328: DataMartService: add a fallback when replication does not work

Hide ``getTopArticlesByPageview`` method behind a helper that performs a fallback to the last known rollup

A Nasty And Ugly Hack (TM) before we have a proper rollups solution.

@see https://wikia-inc.atlassian.net/browse/OPS-5465

@kvas-damian / @SebastianMarzjan / @drozdo