void Slave::HandleRedisCommand(Channel* ch, RedisCommandFrame& cmd)
{
int flag = ARDB_PROCESS_REPL_WRITE;
if (m_slave_state == SLAVE_STATE_SYNCED || m_slave_state == SLAVE_STATE_LOADING_DUMP_DATA)
{
flag |= ARDB_PROCESS_FORCE_REPLICATION;
}
else
{
flag |= ARDB_PROCESS_WITHOUT_REPLICATION;
}
DEBUG_LOG("Recv master cmd %s at %lld at flag:%d at state:%d", cmd.ToString().c_str(),
m_backlog.GetReplEndOffset(), flag, m_slave_state);
if (m_slave_state == SLAVE_STATE_WAITING_PSYNC_REPLY && m_server_type == ARDB_DB_SERVER_TYPE)
{
if (!strcasecmp(cmd.GetCommand().c_str(), "FULLSYNCED"))
{
uint64 offset, cksm;
string_touint64(cmd.GetArguments()[0], offset);
string_touint64(cmd.GetArguments()[1], cksm);
m_backlog.SetChecksum(cksm);
ASSERT(offset == m_backlog.GetReplEndOffset());
//m_backlog.SetReplOffset(offset);
m_slave_state = SLAVE_STATE_SYNCED;
//Disconnect all slaves when all data resynced
m_serv->m_master_serv.DisconnectAllSlaves();
return;
}
}
if (!strcasecmp(cmd.GetCommand().c_str(), "PING"))
{
m_ping_recved_time = time(NULL);
}
else if (!strcasecmp(cmd.GetCommand().c_str(), "SELECT"))
{
DBID id = 0;
string_touint32(cmd.GetArguments()[0], id);
m_backlog.SetCurrentDBID(id);
}
GetArdbConnContext();
m_actx->is_slave_conn = true;
m_actx->conn = ch;
if (strcasecmp(cmd.GetCommand().c_str(), "SELECT") && strcasecmp(cmd.GetCommand().c_str(), "__SET__")
&& strcasecmp(cmd.GetCommand().c_str(), "__DEL__"))
{
if (!m_include_dbs.empty() && m_include_dbs.count(m_actx->currentDB) == 0)
{
flag |= ARDB_PROCESS_FEED_REPLICATION_ONLY;
}
if (!m_exclude_dbs.empty() && m_exclude_dbs.count(m_actx->currentDB) > 0)
{
flag |= ARDB_PROCESS_FEED_REPLICATION_ONLY;
}
}
m_serv->ProcessRedisCommand(*m_actx, cmd, flag);
}
void Master::AddSlave(Channel* slave, RedisCommandFrame& cmd)
{
INFO_LOG("[Master]Recv sync command:%s", cmd.ToString().c_str());
slave->Flush();
SlaveConn& conn = GetSlaveConn(slave);
if (!strcasecmp(cmd.GetCommand().c_str(), "sync"))
{
//Redis 2.6/2.4 send 'sync'
conn.isRedisSlave = true;
conn.sync_offset = -1;
}
else
{
conn.server_key = cmd.GetArguments()[0];
const std::string& offset_str = cmd.GetArguments()[1];
if (!string_toint64(offset_str, conn.sync_offset))
{
ERROR_LOG("Invalid offset argument:%s", offset_str.c_str());
slave->Close();
return;
}
conn.isRedisSlave = true;
for (uint32 i = 2; i < cmd.GetArguments().size(); i += 2)
{
if (cmd.GetArguments()[i] == "cksm")
{
conn.isRedisSlave = false;
if (!string_touint64(cmd.GetArguments()[i + 1], conn.sync_cksm))
{
ERROR_LOG("Invalid checksum argument:%s", cmd.GetArguments()[i + 1].c_str());
slave->Close();
return;
}
}
}
}
slave->GetService().DetachChannel(slave, true);
if (g_repl->GetIOServ().IsInLoopThread())
{
AddSlave(&conn);
}
else
{
g_repl->GetIOServ().AsyncIO(0, OnAddSlave, &conn);
}
}
