Github user anmolnar commented on the issue:
https://github.com/apache/zookeeper/pull/300
Looks like follower that the client is trying to reconnect at line 116 is
stuck with revalidating the session:
```
2018-10-24 12:20:31,215 [myid:] - INFO [NIOWorkerThread-1:Learner@118] -
Revalidating client: 0x100efaa0cd30000
```
It doesn't get a response from the leader and client will eventually
timeouts. Looks like it's a big concern regarding this patch.---
