Exemple #1
0
int Learner :: SendLearnValue(
        const nodeid_t iSendNodeID,
        const uint64_t llLearnInstanceID,
        const BallotNumber & oLearnedBallot,
        const std::string & sLearnedValue,
        const uint32_t iChecksum,
        const bool bNeedAck)
{
    BP->GetLearnerBP()->SendLearnValue();

    PaxosMsg oPaxosMsg;
    
    oPaxosMsg.set_msgtype(MsgType_PaxosLearner_SendLearnValue);
    oPaxosMsg.set_instanceid(llLearnInstanceID);
    oPaxosMsg.set_nodeid(m_poConfig->GetMyNodeID());
    oPaxosMsg.set_proposalnodeid(oLearnedBallot.m_llNodeID);
    oPaxosMsg.set_proposalid(oLearnedBallot.m_llProposalID);
    oPaxosMsg.set_value(sLearnedValue);
    oPaxosMsg.set_lastchecksum(iChecksum);
    if (bNeedAck)
    {
        oPaxosMsg.set_flag(PaxosMsgFlagType_SendLearnValue_NeedAck);
    }

    return SendMessage(iSendNodeID, oPaxosMsg, Message_SendType_TCP);
}
Exemple #2
0
void Learner :: TransmitToFollower()
{
    if (m_poConfig->GetMyFollowerCount() == 0)
    {
        return;
    }
    
    PaxosMsg oPaxosMsg;
    
    oPaxosMsg.set_msgtype(MsgType_PaxosLearner_SendLearnValue);
    oPaxosMsg.set_instanceid(GetInstanceID());
    oPaxosMsg.set_nodeid(m_poConfig->GetMyNodeID());
    oPaxosMsg.set_proposalnodeid(m_poAcceptor->GetAcceptorState()->GetAcceptedBallot().m_llNodeID);
    oPaxosMsg.set_proposalid(m_poAcceptor->GetAcceptorState()->GetAcceptedBallot().m_llProposalID);
    oPaxosMsg.set_value(m_poAcceptor->GetAcceptorState()->GetAcceptedValue());
    oPaxosMsg.set_lastchecksum(GetLastChecksum());

    BroadcastMessageToFollower(oPaxosMsg, Message_SendType_TCP);

    PLGHead("ok");
}
Exemple #3
0
void Learner :: AskforLearn()
{
    BP->GetLearnerBP()->AskforLearn();

    PLGHead("START");

    PaxosMsg oPaxosMsg;

    oPaxosMsg.set_instanceid(GetInstanceID());
    oPaxosMsg.set_nodeid(m_poConfig->GetMyNodeID());
    oPaxosMsg.set_msgtype(MsgType_PaxosLearner_AskforLearn);

    if (m_poConfig->IsIMFollower())
    {
        //this is not proposal nodeid, just use this val to bring followto nodeid info.
        oPaxosMsg.set_proposalnodeid(m_poConfig->GetFollowToNodeID());
    }

    PLGHead("END InstanceID %lu MyNodeID %lu", oPaxosMsg.instanceid(), oPaxosMsg.nodeid());

    BroadcastMessage(oPaxosMsg, BroadcastMessage_Type_RunSelf_None, Message_SendType_TCP);
    BroadcastMessageToTempNode(oPaxosMsg, Message_SendType_UDP);
}