Logging in Direct Channel with failover

I wish, that for the DirectChannel with failover (no LB) will be logged out all the Exception s, which happend in all subscribers. At least with INFO level.

Now for instance I have a DirectChannel with a main Subschriber which exports data to MongoDB and a failover Subscriber which exports data on local disk in case when MongoDB expiriences problems. Due to bad logging in Mongo Driver I don't know, what the problem was it exactly.

So logging at the level of Spring Integration would be helpfull.