Todd Lipcon created KUDU-2156:
---------------------------------
Summary: Raft should reset backoff counter when a current leader
contacts replica
Key: KUDU-2156
URL: https://issues.apache.org/jira/browse/KUDU-2156
Project: Kudu
Issue Type: Bug
Components: consensus
Affects Versions: 1.5.0
Reporter: Todd Lipcon
RaftConsensus maintains a failed_elections_since_stable_leader_ counter used to
cause elections to back off on failure. However, if a replica is partitioned
for a while such that it calls some failed pre-elections, and then gets
re-connected to the cluster such that the leader never changed, the counter
will remain high. It only resets on an actual leader change. This means that if
the leader did actually fail in the future, the failure would not be detected
for a potentially long time.
Instead we should reset the counter on any successful update from the leader.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
