Since 201522 there is an issue with Eventlogging SQL data. Data is not replicating from master to slave for some tables.
For example for table: MobileWikiAppSearch_10641988
In master: (m4)
mysql> mysql> use log; Database changed mysql> select max(timestamp) from log.MobileWikiAppSearch_10641988; +----------------+ | max(timestamp) | +----------------+ | 20151026145049 | +----------------+ 1 row in set (0.00 sec)
In slave:
mysql:research@analytics-store.eqiad.wmnet [(none)]> use log; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql:research@analytics-store.eqiad.wmnet [log]> select max(timestamp) from log.MobileWikiAppSearch_10641988; +----------------+ | max(timestamp) | +----------------+ | 20151022145533 | +----------------+ 1 row in set (0.00 sec)