void PaxosProposer::OnProposeResponse(PaxosMessage& imsg)
{
PaxosMessage omsg;
Log_Trace("msg.nodeID = %u", imsg.nodeID);
if (!state.proposing || imsg.proposalID != state.proposalID)
return;
if (imsg.type == PAXOS_PROPOSE_REJECTED)
{
Log_Debug("Propose rejected, quorumID: %U", context->GetQuorumID());
vote->RegisterRejected(imsg.nodeID);
}
else
vote->RegisterAccepted(imsg.nodeID);
if (vote->IsRejected())
{
StopProposing();
EventLoop::Add(&restartTimeout);
}
else if (vote->IsAccepted())
{
// a majority have accepted our proposal, we have consensus
StopProposing();
omsg.LearnProposal(context->GetPaxosID(), MY_NODEID, state.proposalID);
BroadcastMessage(omsg);
state.learnSent = true;
}
}
void PaxosProposer::OnProposeResponse(PaxosMessage& imsg)
{
PaxosMessage omsg;
Log_Trace("msg.nodeID = %u", imsg.nodeID);
if (!state.proposing || imsg.proposalID != state.proposalID)
return;
if (imsg.type == PAXOS_PROPOSE_REJECTED)
{
Log_Debug("Propose rejected");
vote->RegisterRejected(imsg.nodeID);
}
else
vote->RegisterAccepted(imsg.nodeID);
// see if we have enough positive replies to advance
if (vote->IsAccepted())
{
// a majority have accepted our proposal, we have consensus
StopProposing();
omsg.LearnProposal(context->GetPaxosID(), MY_NODEID, state.proposalID);
BroadcastMessage(omsg);
}
else if (vote->IsComplete())
StartPreparing();
}
void PaxosProposer::StartPreparing()
{
PaxosMessage omsg;
Log_Trace();
StopProposing();
NewVote();
state.preparing = true;
state.numProposals++;
state.proposalID = REPLICATION_CONFIG->NextProposalID(MAX(state.proposalID, state.highestPromisedProposalID));
state.highestReceivedProposalID = 0;
omsg.PrepareRequest(context->GetPaxosID(), MY_NODEID, state.proposalID);
BroadcastMessage(omsg);
EventLoop::Reset(&prepareTimeout);
}
