Hi,
it seems some tables of the EventLogging database are no longer replicating since around 2014-12-09T11:32 [1] on both dbstore1002 and db1047 (s1-analytics-slave).
Strangely enough, it seems that it only affects some tables. Like for example
* NavigationTiming_10374055, and * SaveTiming_10077760
are lagging, while
* Echo_7731316 * MobileWebEditing_8599025
are up-to-date. I filed RT #9016 to track the issue https://rt.wikimedia.org/Ticket/Display.html?id=9016
Best regards, Christian
[1] The m2 master database is showing current events, so this is merely a replication issue.