Impl 3 of WL2278 - Dynamic port allocation of cluster nodes

- Change configuration handling so that no default ports are given, but instead 0 is set (port to be dynamic)
- TransporterRegistry::start_service now only tries to connect when fetched port number > 0


ndb/include/util/SocketServer.hpp:
  Update prototype of setup() to take a pointer to the port (so we can return the port we bound to)
ndb/src/common/transporter/TransporterRegistry.cpp:
  Only try to connect_client when we have a valid port number (i.e. > 0)
ndb/src/common/util/SocketServer.cpp:
  ::setup(): Return the port we bound to
ndb/src/cw/cpcd/main.cpp:
  Use new SocketServer::setup() api - returns port we bound to.
ndb/src/mgmsrv/main.cpp:
  Conform to new SocketServer::setup() API (port is a pointer, returning the port we bound to)
ndb/src/mgmsrv/ConfigInfo.cpp:
  fixPortNumber:
  Don't create port numbers when none are specified, just set 0 (dynamic)
ndb/src/mgmsrv/MgmtSrvr.cpp:
  use DBUG_RETURN correctly in setConnectionDbParameter

ndb/include/util/SocketServer.hpp

@@ -83,7 +83,7 @@ public:
    *   bind & listen
    * Returns false if no success
    */
-  bool setup(Service *, unsigned short port, const char * pinterface = 0);
+  bool setup(Service *, unsigned short *port, const char * pinterface = 0);
   
   /**
    * start/stop the server

ndb/src/common/transporter/TransporterRegistry.cpp

@@ -1153,13 +1153,16 @@ TransporterRegistry::start_clients_thread()
 						     &mgm_reply);
 	    DBUG_PRINT("info",("Got dynamic port %u for %d -> %d (ret: %d)",
 			       server_port,t->getRemoteNodeId(),
-			       t->getLocalNodeId()));
+			       t->getLocalNodeId(),res));
 	    if(res>=0)
 	      t->set_r_port(server_port);
 	    else
 	      ndbout_c("Failed to get dynamic port to connect to.");
 	  }
-	  t->connect_client();
+	  if(t->get_r_port()>0)
+	    t->connect_client();
+	  else
+	    NdbSleep_MilliSleep(400);
 	}
 	break;
       case DISCONNECTING:
@@ -1215,7 +1218,7 @@ TransporterRegistry::add_transporter_interface(NodeId remoteNodeId,
   for (unsigned i= 0; i < m_transporter_interface.size(); i++)
   {
     Transporter_interface &tmp= m_transporter_interface[i];
-    if (port != tmp.m_service_port)
+    if (port != tmp.m_service_port || tmp.m_service_port==0)
       continue;
     if (interf != 0 && tmp.m_interface != 0 &&
 	strcmp(interf, tmp.m_interface) == 0)
@@ -1248,14 +1251,11 @@ TransporterRegistry::start_service(SocketServer& socket_server)
   for (unsigned i= 0; i < m_transporter_interface.size(); i++)
   {
     Transporter_interface &t= m_transporter_interface[i];
-    if (t.m_service_port == 0)
-    {
-      continue;
-    }
+
     TransporterService *transporter_service =
       new TransporterService(new SocketAuthSimple("ndbd", "ndbd passwd"));
     if(!socket_server.setup(transporter_service,
-			    t.m_service_port, t.m_interface))
+			    &t.m_service_port, t.m_interface))
     {
       ndbout_c("Unable to setup transporter service port: %s:%d!\n"
 	       "Please check if the port is already used,\n"

ndb/src/common/util/SocketServer.cpp

@@ -82,15 +82,15 @@ SocketServer::tryBind(unsigned short port, const char * intface) {
 
 bool
 SocketServer::setup(SocketServer::Service * service, 
-		    unsigned short port, 
+		    unsigned short * port,
 		    const char * intface){
   DBUG_ENTER("SocketServer::setup");
-  DBUG_PRINT("enter",("interface=%s, port=%d", intface, port));
+  DBUG_PRINT("enter",("interface=%s, port=%u", intface, *port));
   struct sockaddr_in servaddr;
   memset(&servaddr, 0, sizeof(servaddr));
   servaddr.sin_family = AF_INET;
   servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
-  servaddr.sin_port = htons(port);
+  servaddr.sin_port = htons(*port);
   
   if(intface != 0){
     if(Ndb_getInAddr(&servaddr.sin_addr, intface))
@@ -119,7 +119,9 @@ SocketServer::setup(SocketServer::Service * service,
     NDB_CLOSE_SOCKET(sock);
     DBUG_RETURN(false);
   }
-  
+  socklen_t sock_len = sizeof(servaddr);
+  getsockname(sock,(struct sockaddr*)&servaddr,&sock_len);
+  DBUG_PRINT("info",("bound to %u",ntohs(servaddr.sin_port)));
   if (listen(sock, m_maxSessions) == -1){
     DBUG_PRINT("error",("listen() - %d - %s",
 			errno, strerror(errno)));
@@ -131,6 +133,9 @@ SocketServer::setup(SocketServer::Service * service,
   i.m_socket = sock;
   i.m_service = service;
   m_services.push_back(i);
+
+  *port = ntohs(servaddr.sin_port);
+
   DBUG_RETURN(true);
 }
 

ndb/src/cw/cpcd/main.cpp

@@ -29,7 +29,7 @@
 #include "common.hpp"
 
 static const char *work_dir = CPCD_DEFAULT_WORK_DIR;
-static int port;
+static short unsigned int port;
 static int use_syslog;
 static const char *logfile = NULL;
 static const char *config_file = CPCD_DEFAULT_CONFIG_FILE;
@@ -139,7 +139,7 @@ int main(int argc, char** argv){
   
   SocketServer * ss = new SocketServer();
   CPCDAPIService * serv = new CPCDAPIService(cpcd);
-  if(!ss->setup(serv, port)){
+  if(!ss->setup(serv, &port)){
     logger.critical("Cannot setup server: %s", strerror(errno));
     sleep(1);
     delete ss;

ndb/src/mgmsrv/ConfigInfo.cpp

@@ -3030,37 +3030,6 @@ fixPortNumber(InitConfigFileParser::Context & ctx, const char * data){
   Uint32 port= 0;
   if (!node->get("ServerPort", &port) &&
       !ctx.m_userProperties.get("ServerPort_", id1, &port)) {
-    Uint32 adder= 0;
-    {
-      BaseString server_port_adder(hostname);
-      server_port_adder.append("_ServerPortAdder");
-      ctx.m_userProperties.get(server_port_adder.c_str(), &adder);
-      ctx.m_userProperties.put(server_port_adder.c_str(), adder+1, true);
-    }
-
-    Uint32 base= 0;
-    if (!ctx.m_userProperties.get("ServerPortBase", &base)){
-      if(!(ctx.m_userDefaults &&
-	   ctx.m_userDefaults->get("PortNumber", &base)) &&
-	 !ctx.m_systemDefaults->get("PortNumber", &base)) {
-	base= strtoll(NDB_TCP_BASE_PORT,0,0);
-      //      ctx.reportError("Cannot retrieve base port number");
-      //      return false;
-      }
-      ctx.m_userProperties.put("ServerPortBase", base);
-    }
-    port= base + adder;
-    ctx.m_userProperties.put("ServerPort_", id1, port);
-  }
-
-  if(ctx.m_currentSection->contains("PortNumber")) {
-    ndbout << "PortNumber should no longer be specificied "
-	   << "per connection, please remove from config. "
-	   << "Will be changed to " << port << endl;
-    ctx.m_currentSection->put("PortNumber", port, true);
-  } 
-  else
-  {
     ctx.m_currentSection->put("PortNumber", port);
   }
   DBUG_PRINT("info", ("connection %d-%d port %d host %s",

ndb/src/mgmsrv/MgmtSrvr.cpp

@@ -613,6 +613,26 @@ MgmtSrvr::start(BaseString &error_string)
     theFacade = 0;
     return false;
   }
+
+  TransporterRegistry *reg = theFacade->get_registry();
+  for(unsigned int i=0;i<reg->m_transporter_interface.size();i++) {
+    BaseString msg;
+    DBUG_PRINT("info",("Setting dynamic port %d->%d : %u",
+		       reg->get_localNodeId(),
+		       reg->m_transporter_interface[i].m_remote_nodeId,
+		       reg->m_transporter_interface[i].m_service_port
+		       )
+	       );
+    int res = setConnectionDbParameter((int)reg->get_localNodeId(),
+				       (int)reg->m_transporter_interface[i]
+				            .m_remote_nodeId,
+				       (int)CFG_CONNECTION_SERVER_PORT,
+				       (int)reg->m_transporter_interface[i]
+				            .m_service_port,
+					 msg);
+    DBUG_PRINT("info",("Set result: %d: %s",res,msg.c_str()));
+  }
+
   
   _ownReference = numberToRef(_blockNumber, _ownNodeId);
   
@@ -2756,17 +2776,18 @@ MgmtSrvr::setConnectionDbParameter(int node1,
     Uint32 n1,n2;
     iter.get(CFG_CONNECTION_NODE_1, &n1);
     iter.get(CFG_CONNECTION_NODE_2, &n2);
-    if(n1 == (unsigned)node1 && n2 == (unsigned)node2)
+    if((n1 == (unsigned)node1 && n2 == (unsigned)node2)
+       || (n1 == (unsigned)node2 && n2 == (unsigned)node1))
       break;
   }
   if(!iter.valid()) {
     msg.assign("Unable to find connection between nodes");
-    return -1;
+    DBUG_RETURN(-2);
   }
   
   if(iter.get(param, &current_value) < 0) {
     msg.assign("Unable to get current value of parameter");
-    return -1;
+    DBUG_RETURN(-3);
   }
 
   ConfigValues::Iterator i2(_config->m_configValues->m_config, 
@@ -2774,16 +2795,16 @@ MgmtSrvr::setConnectionDbParameter(int node1,
 
   if(i2.set(param, (unsigned)value) < 0) {
     msg.assign("Unable to set new value of parameter");
-    return -1;
+    DBUG_RETURN(-4);
   }
   
   if(iter.get(param, &new_value) < 0) {
     msg.assign("Unable to get parameter after setting it.");
-    return -1;
+    DBUG_RETURN(-5);
   }
 
   msg.assfmt("%u -> %u",current_value,new_value);
-  return 1;
+  DBUG_RETURN(1);
 }
 
 

ndb/src/mgmsrv/main.cpp

@@ -67,7 +67,7 @@ struct MgmGlobals {
   NodeId localNodeId;
   bool use_specific_ip;
   char * interface_name;
-  int port;
+  short unsigned int port;
   
   /** The Mgmt Server */
   MgmtSrvr * mgmObject;
@@ -233,7 +233,7 @@ int main(int argc, char** argv)
     glob.interface_name = 0;
   }
 
-  if(!glob.socketServer->setup(mapi, glob.port, glob.interface_name)){
+  if(!glob.socketServer->setup(mapi, &glob.port, glob.interface_name)){
     ndbout_c("Unable to setup management port: %d!\n"
 	     "Please check if the port is already used,\n"
 	     "(perhaps a ndb_mgmd is already running),\n"