[08:53:19] <jynus>	 I've doubled the number of "special slaves" to avoid contention, that should help on many scenarios and allows better maintenance
[17:08:16] <jynus>	 springle, did you left m4 with db1046 or db1047 (the failover) as the master? https://phabricator.wikimedia.org/T104748
[17:09:10] <jynus>	 also, if you get bored, you could implement pt-heartbeat support on tendril