mgmtsrvr.cpp

mysql-5.0.24源码包

                       "nostart: %d  initialStart: %d",
                       node_ids.size(), singleUserNodeId,
                       abort, stop, restart, nostart, initialStart));

  stoppedNodes.clear();

  SignalSender ss(theFacade);
  ss.lock(); // lock will be released on exit

  SimpleSignal ssig;
  StopReq* const stopReq = CAST_PTR(StopReq, ssig.getDataPtrSend());
  ssig.set(ss, TestOrd::TraceAPI, NDBCNTR, GSN_STOP_REQ, StopReq::SignalLength);

  stopReq->requestInfo = 0;
  stopReq->apiTimeout = 5000;
  stopReq->transactionTimeout = 1000;
  stopReq->readOperationTimeout = 1000;
  stopReq->operationTimeout = 1000;
  stopReq->senderData = 12;
  stopReq->senderRef = ss.getOwnRef();
  if (singleUserNodeId)
  {
    stopReq->singleuser = 1;
    stopReq->singleUserApi = singleUserNodeId;
    StopReq::setSystemStop(stopReq->requestInfo, false);
    StopReq::setPerformRestart(stopReq->requestInfo, false);
    StopReq::setStopAbort(stopReq->requestInfo, false);
  }
  else
  {
    stopReq->singleuser = 0;
    StopReq::setSystemStop(stopReq->requestInfo, stop);
    StopReq::setPerformRestart(stopReq->requestInfo, restart);
    StopReq::setStopAbort(stopReq->requestInfo, abort);
    StopReq::setNoStart(stopReq->requestInfo, nostart);
    StopReq::setInitialStart(stopReq->requestInfo, initialStart);
  }

  // send the signals
  NodeBitmask nodes;
  NodeId nodeId= 0;
  int use_master_node= 0;
  int do_send= 0;
  *stopSelf= 0;
  NdbNodeBitmask nodes_to_stop;
  {
    for (unsigned i= 0; i < node_ids.size(); i++)
    {
      nodeId= node_ids[i];
      ndbout << "asked to stop " << nodeId << endl;
      if (getNodeType(nodeId) != NDB_MGM_NODE_TYPE_MGM)
        nodes_to_stop.set(nodeId);
      else if (nodeId != getOwnNodeId())
      {
        error= sendStopMgmd(nodeId, abort, stop, restart,
                            nostart, initialStart);
        if (error == 0)
          stoppedNodes.set(nodeId);
      }
      else
      {
        ndbout << "which is me" << endl;
        *stopSelf= (restart)? -1 : 1;
        stoppedNodes.set(nodeId);
      }
    }
  }
  int no_of_nodes_to_stop= nodes_to_stop.count();
  if (node_ids.size())
  {
    if (no_of_nodes_to_stop)
    {
      do_send= 1;
      if (no_of_nodes_to_stop == 1)
      {
        nodeId= nodes_to_stop.find(0);
      }
      else // multi node stop, send to master
      {
        use_master_node= 1;
        nodes_to_stop.copyto(NdbNodeBitmask::Size, stopReq->nodes);
        StopReq::setStopNodes(stopReq->requestInfo, 1);
      }
    }
  }
  else
  {
    nodeId= 0;
    while(getNextNodeId(&nodeId, NDB_MGM_NODE_TYPE_NDB))
    {
      if(okToSendTo(nodeId, true) == 0)
      {
	SendStatus result = ss.sendSignal(nodeId, &ssig);
	if (result == SEND_OK)
	  nodes.set(nodeId);
      }
    }
  }

  // now wait for the replies
  while (!nodes.isclear() || do_send)
  {
    if (do_send)
    {
      int r;
      assert(nodes.count() == 0);
      if (use_master_node)
        nodeId= m_master_node;
      if ((r= okToSendTo(nodeId, true)) != 0)
      {
        bool next;
        if (!use_master_node)
          DBUG_RETURN(r);
        m_master_node= nodeId= 0;
        while((next= getNextNodeId(&nodeId, NDB_MGM_NODE_TYPE_NDB)) == true &&
              (r= okToSendTo(nodeId, true)) != 0);
        if (!next)
          DBUG_RETURN(NO_CONTACT_WITH_DB_NODES);
      }
      if (ss.sendSignal(nodeId, &ssig) != SEND_OK)
        DBUG_RETURN(SEND_OR_RECEIVE_FAILED);
      nodes.set(nodeId);
      do_send= 0;
    }
    SimpleSignal *signal = ss.waitFor();
    int gsn = signal->readSignalNumber();
    switch (gsn) {
    case GSN_STOP_REF:{
      const StopRef * const ref = CAST_CONSTPTR(StopRef, signal->getDataPtr());
      const NodeId nodeId = refToNode(signal->header.theSendersBlockRef);
#ifdef VM_TRACE
      ndbout_c("Node %d refused stop", nodeId);
#endif
      assert(nodes.get(nodeId));
      nodes.clear(nodeId);
      if (ref->errorCode == StopRef::MultiNodeShutdownNotMaster)
      {
        assert(use_master_node);
        m_master_node= ref->masterNodeId;
        do_send= 1;
        continue;
      }
      error = translateStopRef(ref->errorCode);
      break;
    }
    case GSN_STOP_CONF:{
      const StopConf * const ref = CAST_CONSTPTR(StopConf, signal->getDataPtr());
      const NodeId nodeId = refToNode(signal->header.theSendersBlockRef);
#ifdef VM_TRACE
      ndbout_c("Node %d single user mode", nodeId);
#endif
      assert(nodes.get(nodeId));
      if (singleUserNodeId != 0)
      {
        stoppedNodes.set(nodeId);
      }
      else
      {
        assert(no_of_nodes_to_stop > 1);
        stoppedNodes.bitOR(nodes_to_stop);
      }
      nodes.clear(nodeId);
      break;
    }
    case GSN_NF_COMPLETEREP:{
      const NFCompleteRep * const rep =
	CAST_CONSTPTR(NFCompleteRep, signal->getDataPtr());
#ifdef VM_TRACE
      ndbout_c("sendSTOP_REQ Node %d fail completed", rep->failedNodeId);
#endif
      nodes.clear(rep->failedNodeId); // clear the failed node
      if (singleUserNodeId == 0)
        stoppedNodes.set(rep->failedNodeId);
      break;
    }
    case GSN_NODE_FAILREP:{
      const NodeFailRep * const rep =
	CAST_CONSTPTR(NodeFailRep, signal->getDataPtr());
      break;
    }
    default:
      report_unknown_signal(signal);
#ifdef VM_TRACE
      ndbout_c("Unknown signal %d", gsn);
#endif
      DBUG_RETURN(SEND_OR_RECEIVE_FAILED);
    }
  }
  if (error && *stopSelf)
  {
    *stopSelf= 0;
  }
  DBUG_RETURN(error);
}

/*
 * Stop one nodes
 */

int MgmtSrvr::stopNodes(const Vector<NodeId> &node_ids,
                        int *stopCount, bool abort, int* stopSelf)
{
  if (!abort)
  {
    NodeId nodeId = 0;
    ClusterMgr::Node node;
    while(getNextNodeId(&nodeId, NDB_MGM_NODE_TYPE_NDB))
    {
      node = theFacade->theClusterMgr->getNodeInfo(nodeId);
      if((node.m_state.startLevel != NodeState::SL_STARTED) && 
	 (node.m_state.startLevel != NodeState::SL_NOTHING))
	return OPERATION_NOT_ALLOWED_START_STOP;
    }
  }
  NodeBitmask nodes;
  int ret= sendSTOP_REQ(node_ids,
                        nodes,
                        0,
                        abort,
                        false,
                        false,
                        false,
                        false,
                        stopSelf);
  if (stopCount)
    *stopCount= nodes.count();
  return ret;
}

int MgmtSrvr::shutdownMGM(int *stopCount, bool abort, int *stopSelf)
{
  NodeId nodeId = 0;
  int error;

  while(getNextNodeId(&nodeId, NDB_MGM_NODE_TYPE_MGM))
  {
    if(nodeId==getOwnNodeId())
      continue;
    error= sendStopMgmd(nodeId, abort, true, false,
                        false, false);
    if (error == 0)
      *stopCount++;
  }

  *stopSelf= 1;
  *stopCount++;

  return 0;
}

/*
 * Perform DB nodes shutdown.
 * MGM servers are left in their current state
 */

int MgmtSrvr::shutdownDB(int * stopCount, bool abort)
{
  NodeBitmask nodes;
  Vector<NodeId> node_ids;

  int tmp;

  int ret = sendSTOP_REQ(node_ids,
			 nodes,
			 0,
			 abort,
			 true,
			 false,
			 false,
			 false,
                         &tmp);
  if (stopCount)
    *stopCount = nodes.count();
  return ret;
}

/*
 * Enter single user mode on all live nodes
 */

int MgmtSrvr::enterSingleUser(int * stopCount, Uint32 singleUserNodeId)
{
  if (getNodeType(singleUserNodeId) != NDB_MGM_NODE_TYPE_API)
    return NODE_NOT_API_NODE;
  NodeId nodeId = 0;
  ClusterMgr::Node node;
  while(getNextNodeId(&nodeId, NDB_MGM_NODE_TYPE_NDB))
  {
    node = theFacade->theClusterMgr->getNodeInfo(nodeId);
    if((node.m_state.startLevel != NodeState::SL_STARTED) && 
       (node.m_state.startLevel != NodeState::SL_NOTHING))
      return OPERATION_NOT_ALLOWED_START_STOP;
  }
  NodeBitmask nodes;
  Vector<NodeId> node_ids;
  int stopSelf;
  int ret = sendSTOP_REQ(node_ids,
			 nodes,
			 singleUserNodeId,
			 false,
			 false,
			 false,
			 false,
			 false,
                         &stopSelf);
  if (stopCount)
    *stopCount = nodes.count();
  return ret;
}

/*
 * Perform node restart
 */

int MgmtSrvr::restartNodes(const Vector<NodeId> &node_ids,
                           int * stopCount, bool nostart,
                           bool initialStart, bool abort,
                           int *stopSelf)
{
  NodeBitmask nodes;
  int ret= sendSTOP_REQ(node_ids,
                        nodes,
                        0,
                        abort,
                        false,
                        true,
                        true,
                        initialStart,
                        stopSelf);

  if (ret)
    return ret;

  if (stopCount)
    *stopCount = nodes.count();
  
  // start up the nodes again
  int waitTime = 12000;
  NDB_TICKS maxTime = NdbTick_CurrentMillisecond() + waitTime;
  for (unsigned i = 0; i < node_ids.size(); i++)
  {
    NodeId nodeId= node_ids[i];
    enum ndb_mgm_node_status s;
    s = NDB_MGM_NODE_STATUS_NO_CONTACT;
#ifdef VM_TRACE
    ndbout_c("Waiting for %d not started", nodeId);
#endif
    while (s != NDB_MGM_NODE_STATUS_NOT_STARTED && waitTime > 0)
    {
      Uint32 startPhase = 0, version = 0, dynamicId = 0, nodeGroup = 0;
      Uint32 connectCount = 0;
      bool system;
      const char *address;
      status(nodeId, &s, &version, &startPhase, 
             &system, &dynamicId, &nodeGroup, &connectCount, &address);
      NdbSleep_MilliSleep(100);  
      waitTime = (maxTime - NdbTick_CurrentMillisecond());
    }
  }

  if (nostart)
    return 0;

  for (unsigned i = 0; i < node_ids.size(); i++)
  {
    int result = start(node_ids[i]);
  }
  return 0;
}

/*
 * Perform restart of all DB nodes
 */

int MgmtSrvr::restartDB(bool nostart, bool initialStart,
                        bool abort, int * stopCount)
{
  NodeBitmask nodes;
  Vector<NodeId> node_ids;
  int tmp;

  int ret = sendSTOP_REQ(node_ids,
			 nodes,
			 0,
			 abort,
			 true,
			 true,
			 true,
			 initialStart,
                         &tmp);

  if (ret)
    return ret;

  if (stopCount)
    *stopCount = nodes.count();

#ifdef VM_TRACE
    ndbout_c("Stopped %d nodes", nodes.count());
#endif
  /**
   * Here all nodes were correctly stopped,
   * so we wait for all nodes to be contactable
   */
  int waitTime = 12000;
  NodeId nodeId = 0;
  NDB_TICKS maxTime = NdbTick_CurrentMillisecond() + waitTime;

  ndbout_c(" %d", nodes.get(1));
  ndbout_c(" %d", nodes.get(2));

  while(getNextNodeId(&nodeId, NDB_MGM_NODE_TYPE_NDB)) {
    if (!nodes.get(nodeId))
      continue;
    enum ndb_mgm_node_status s;
    s = NDB_MGM_NODE_STATUS_NO_CONTACT;
#ifdef VM_TRACE
    ndbout_c("Waiting for %d not started", nodeId);
#endif
    while (s != NDB_MGM_NODE_STATUS_NOT_STARTED && waitTime > 0) {
      Uint32 startPhase = 0, version = 0, dynamicId = 0, nodeGroup = 0;
      Uint32 connectCount = 0;
      bool system;
      const char *address;
      status(nodeId, &s, &version, &startPhase, 
	     &system, &dynamicId, &nodeGroup, &connectCount, &address);
      NdbSleep_MilliSleep(100);  
      waitTime = (maxTime - NdbTick_CurrentMillisecond());
    }
  }
  
  if(nostart)
    return 0;
  
  /**
   * Now we start all database nodes (i.e. we make them non-idle)
   * We ignore the result we get from the start command.
   */
  nodeId = 0;
  while(getNextNodeId(&nodeId, NDB_MGM_NODE_TYPE_NDB)) {
    if (!nodes.get(nodeId))
      continue;
    int result;
    result = start(nodeId);
    DEBUG("Starting node " << nodeId << " with result " << result);
    /**
     * Errors from this call are deliberately ignored.
     * Maybe the user only wanted to restart a subset of the nodes.
     * It is also easy for the user to check which nodes have 
     * started and which nodes have not.
     */
  }
  
  return 0;
}

int
MgmtSrvr::exitSingleUser(int * stopCount, bool abort)
{
  NodeId nodeId = 0;
  int count = 0;

  SignalSender ss(theFacade);
  ss.lock(); // lock will be released on exit

  SimpleSignal ssig;
  ResumeReq* const resumeReq = 
    CAST_PTR(ResumeReq, ssig.getDataPtrSend());
  ssig.set(ss,TestOrd::TraceAPI, NDBCNTR, GSN_RESUME_REQ, 
	   ResumeReq::SignalLength);
  resumeReq->senderData = 12;
  resumeReq->senderRef = ss.getOwnRef();

  while(getNextNodeId(&nodeId, NDB_MGM_NODE_TYPE_NDB)){
    if(okToSendTo(nodeId, true) == 0){
      SendStatus result = ss.sendSignal(nodeId, &ssig);
      if (result == SEND_OK)
	count++;
    }
  }

  if(stopCount != 0)