/**
* The behavior of a RaftActor when it is in the Candidate raft state.
- * <p/>
+ *
+ * <p>
* Candidates (§5.2):
* <ul>
* <li> On conversion to candidate, start election:
// Some other candidate for the same term became a leader and sent us an append entry
if (currentTerm() == appendEntries.getTerm()) {
- log.debug("{}: New Leader sent an append entry to Candidate for term {} will switch to Follower",
- logName(), currentTerm());
+ log.info("{}: New Leader {} sent an AppendEntries to Candidate for term {} - will switch to Follower",
+ logName(), appendEntries.getLeaderId(), currentTerm());
return switchBehavior(new Follower(context));
}
if (voteCount >= votesRequired) {
if (context.getLastApplied() < context.getReplicatedLog().lastIndex()) {
- log.debug("{}: LastApplied index {} is behind last index {}", logName(), context.getLastApplied(),
- context.getReplicatedLog().lastIndex());
+ log.info("{}: LastApplied index {} is behind last index {} - switching to PreLeader",
+ logName(), context.getLastApplied(), context.getReplicatedLog().lastIndex());
return internalSwitchBehavior(RaftState.PreLeader);
} else {
return internalSwitchBehavior(RaftState.Leader);
// set currentTerm = T, convert to follower (§5.1)
// This applies to all RPC messages and responses
if (rpc.getTerm() > context.getTermInformation().getCurrentTerm()) {
+ log.info("{}: Term {} in \"{}\" message is greater than Candidate's term {} - switching to Follower",
+ logName(), rpc.getTerm(), rpc, context.getTermInformation().getCurrentTerm());
+
context.getTermInformation().updateAndPersist(rpc.getTerm(), null);
// The raft paper does not say whether or not a Candidate can/should process a RequestVote in
long newTerm = currentTerm + 1;
context.getTermInformation().updateAndPersist(newTerm, context.getId());
- log.debug("{}: Starting new term {}", logName(), newTerm);
+ log.info("{}: Starting new election term {}", logName(), newTerm);
// Request for a vote
// TODO: Retry request for vote if replies do not arrive in a reasonable