bool TransporterRegistry::connect_client(NdbMgmHandle *h)
{
DBUG_ENTER("TransporterRegistry::connect_client(NdbMgmHandle)");
Uint32 mgm_nodeid= ndb_mgm_get_mgmd_nodeid(*h);
if(!mgm_nodeid)
{
g_eventLogger.error("%s: %d", __FILE__, __LINE__);
return false;
}
Transporter * t = theTransporters[mgm_nodeid];
if (!t)
{
g_eventLogger.error("%s: %d", __FILE__, __LINE__);
return false;
}
DBUG_RETURN(t->connect_client(connect_ndb_mgmd(h)));
}
// run as own thread
void
TransporterRegistry::start_clients_thread()
{
int persist_mgm_count= 0;
DBUG_ENTER("TransporterRegistry::start_clients_thread");
while (m_run_start_clients_thread) {
NdbSleep_MilliSleep(100);
persist_mgm_count++;
if(persist_mgm_count==50)
{
ndb_mgm_check_connection(m_mgm_handle);
persist_mgm_count= 0;
}
for (int i= 0, n= 0; n < nTransporters && m_run_start_clients_thread; i++){
Transporter * t = theTransporters[i];
if (!t)
continue;
n++;
const NodeId nodeId = t->getRemoteNodeId();
switch(performStates[nodeId]){
case CONNECTING:
if(!t->isConnected() && !t->isServer) {
bool connected= false;
/**
* First, we try to connect (if we have a port number).
*/
if (t->get_s_port())
connected= t->connect_client();
/**
* If dynamic, get the port for connecting from the management server
*/
if( !connected && t->get_s_port() <= 0) { // Port is dynamic
int server_port= 0;
struct ndb_mgm_reply mgm_reply;
if(!ndb_mgm_is_connected(m_mgm_handle))
ndb_mgm_connect(m_mgm_handle, 0, 0, 0);
if(ndb_mgm_is_connected(m_mgm_handle))
{
int res=
ndb_mgm_get_connection_int_parameter(m_mgm_handle,
t->getRemoteNodeId(),
t->getLocalNodeId(),
CFG_CONNECTION_SERVER_PORT,
&server_port,
&mgm_reply);
DBUG_PRINT("info",("Got dynamic port %d for %d -> %d (ret: %d)",
server_port,t->getRemoteNodeId(),
t->getLocalNodeId(),res));
if( res >= 0 )
{
/**
* Server_port == 0 just means that that a mgmt server
* has not received a new port yet. Keep the old.
*/
if (server_port)
t->set_s_port(server_port);
}
else if(ndb_mgm_is_connected(m_mgm_handle))
{
g_eventLogger.info("Failed to get dynamic port to connect to: %d", res);
ndb_mgm_disconnect(m_mgm_handle);
}
else
{
g_eventLogger.info("Management server closed connection early. "
"It is probably being shut down (or has problems). "
"We will retry the connection. %d %s %s line: %d",
ndb_mgm_get_latest_error(m_mgm_handle),
ndb_mgm_get_latest_error_desc(m_mgm_handle),
ndb_mgm_get_latest_error_msg(m_mgm_handle),
ndb_mgm_get_latest_error_line(m_mgm_handle)
);
}
}
/** else
* We will not be able to get a new port unless
* the m_mgm_handle is connected. Note that not
* being connected is an ok state, just continue
* until it is able to connect. Continue using the
* old port until we can connect again and get a
* new port.
*/
}
}
break;
case DISCONNECTING:
if(t->isConnected())
t->doDisconnect();
break;
default:
break;
}
}
}
DBUG_VOID_RETURN;
}