int Database :: ForceDel(const WriteOptions & oWriteOptions, const uint64_t llInstanceID)
{
if (!m_bHasInit)
{
PLG1Err("no init yet");
return -1;
}
string sKey = GenKey(llInstanceID);
string sFileID;
leveldb::Status oStatus = m_poLevelDB->Get(leveldb::ReadOptions(), sKey, &sFileID);
if (!oStatus.ok())
{
if (oStatus.IsNotFound())
{
PLG1Debug("LevelDB.Get not found, instanceid %lu", llInstanceID);
return 0;
}
PLG1Err("LevelDB.Get fail, instanceid %lu", llInstanceID);
return -1;
}
int ret = m_poValueStore->ForceDel(sFileID, llInstanceID);
if (ret != 0)
{
return ret;
}
leveldb::WriteOptions oLevelDBWriteOptions;
oLevelDBWriteOptions.sync = oWriteOptions.bSync;
oStatus = m_poLevelDB->Delete(oLevelDBWriteOptions, sKey);
if (!oStatus.ok())
{
PLG1Err("LevelDB.Delete fail, instanceid %lu", llInstanceID);
return -1;
}
return 0;
}
int Database :: GetFromLevelDB(const uint64_t llInstanceID, std::string & sValue)
{
string sKey = GenKey(llInstanceID);
leveldb::Status oStatus = m_poLevelDB->Get(leveldb::ReadOptions(), sKey, &sValue);
if (!oStatus.ok())
{
if (oStatus.IsNotFound())
{
BP->GetLogStorageBP()->LevelDBGetNotExist();
PLG1Debug("LevelDB.Get not found, instanceid %lu", llInstanceID);
return 1;
}
BP->GetLogStorageBP()->LevelDBGetFail();
PLG1Err("LevelDB.Get fail, instanceid %lu", llInstanceID);
return -1;
}
return 0;
}
int MasterStateMachine :: LearnMaster(
const uint64_t llInstanceID,
const MasterOperator & oMasterOper,
const uint64_t llAbsMasterTimeout)
{
std::lock_guard<std::mutex> oLockGuard(m_oMutex);
PLG1Debug("my last version %lu other last version %lu this version %lu instanceid %lu",
m_llMasterVersion, oMasterOper.lastversion(), oMasterOper.version(), llInstanceID);
if (oMasterOper.lastversion() != 0
&& llInstanceID > m_llMasterVersion
&& oMasterOper.lastversion() != m_llMasterVersion)
{
BP->GetMasterBP()->MasterSMInconsistent();
PLG1Err("other last version %lu not same to my last version %lu, instanceid %lu",
oMasterOper.lastversion(), m_llMasterVersion, llInstanceID);
PLG1Err("try to fix, set my master version %lu as other last version %lu, instanceid %lu",
m_llMasterVersion, oMasterOper.lastversion(), llInstanceID);
m_llMasterVersion = oMasterOper.lastversion();
}
if (oMasterOper.version() != m_llMasterVersion)
{
PLG1Debug("version conflit, op version %lu now master version %lu",
oMasterOper.version(), m_llMasterVersion);
return 0;
}
int ret = UpdateMasterToStore(oMasterOper.nodeid(), llInstanceID, oMasterOper.timeout());
if (ret != 0)
{
PLG1Err("UpdateMasterToStore fail, ret %d", ret);
return -1;
}
bool bMasterChange = false;
if (m_iMasterNodeID != oMasterOper.nodeid())
{
bMasterChange = true;
}
m_iMasterNodeID = oMasterOper.nodeid();
if (m_iMasterNodeID == m_iMyNodeID)
{
//self be master
//use local abstimeout
m_llAbsExpireTime = llAbsMasterTimeout;
BP->GetMasterBP()->SuccessBeMaster();
PLG1Head("Be master success, absexpiretime %lu", m_llAbsExpireTime);
}
else
{
//other be master
//use new start timeout
m_llAbsExpireTime = Time::GetSteadyClockMS() + oMasterOper.timeout();
BP->GetMasterBP()->OtherBeMaster();
PLG1Head("Ohter be master, absexpiretime %lu", m_llAbsExpireTime);
}
m_iLeaseTime = oMasterOper.timeout();
m_llMasterVersion = llInstanceID;
if (bMasterChange)
{
if (m_pMasterChangeCallback != nullptr)
{
m_pMasterChangeCallback(m_iMyGroupIdx, NodeInfo(m_iMasterNodeID), m_llMasterVersion);
}
}
PLG1Imp("OK, masternodeid %lu version %lu abstimeout %lu",
m_iMasterNodeID, m_llMasterVersion, m_llAbsExpireTime);
return 0;
}
