We were on kafka 0.10.2.1. We tried to switch from unclean leader election
to clean leader election and found it became very difficult to start up the
whole cluster.
It seems the hosts went into a deadlock situation during startup
- broker A was a follower on partition 1 and waits for the leader of
partition 1 (which is broker B) to start up
- broker B was a follower on partition 2 and waits for the leader of
partition 2 (which is broker A) to start up
We found there are quite a few deadlock related bugs fixed in 0.11 or
later, do we have to upgrade our kafka version to use clean leader election?
