suma.cpp

mysql-5.0.27版本源码包

/* Copyright (C) 2003 MySQL AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#include "Suma.hpp"

#include <ndb_version.h>

#include <NdbTCP.h>
#include <Bitmask.hpp>
#include <SimpleProperties.hpp>

#include <signaldata/NodeFailRep.hpp>
#include <signaldata/ReadNodesConf.hpp>

#include <signaldata/ListTables.hpp>
#include <signaldata/GetTabInfo.hpp>
#include <signaldata/GetTableId.hpp>
#include <signaldata/DictTabInfo.hpp>
#include <signaldata/SumaImpl.hpp>
#include <signaldata/ScanFrag.hpp>
#include <signaldata/TransIdAI.hpp>
#include <signaldata/CreateTrig.hpp>
#include <signaldata/AlterTrig.hpp>
#include <signaldata/DropTrig.hpp>
#include <signaldata/FireTrigOrd.hpp>
#include <signaldata/TrigAttrInfo.hpp>
#include <signaldata/CheckNodeGroups.hpp>
#include <signaldata/GCPSave.hpp>
#include <GrepError.hpp>

#include <DebuggerNames.hpp>

//#define HANDOVER_DEBUG
//#define NODEFAIL_DEBUG
//#define NODEFAIL_DEBUG2
//#define DEBUG_SUMA_SEQUENCE
//#define EVENT_DEBUG
//#define EVENT_PH3_DEBUG
//#define EVENT_DEBUG2
#if 0
#undef DBUG_ENTER
#undef DBUG_PRINT
#undef DBUG_RETURN
#undef DBUG_VOID_RETURN

#define DBUG_ENTER(a) {ndbout_c("%s:%d >%s", __FILE__, __LINE__, a);}
#define DBUG_PRINT(a,b) {ndbout << __FILE__ << ":" << __LINE__ << " " << a << ": "; ndbout_c b ;}
#define DBUG_RETURN(a) { ndbout_c("%s:%d <", __FILE__, __LINE__); return(a); }
#define DBUG_VOID_RETURN { ndbout_c("%s:%d <", __FILE__, __LINE__); return; }
#endif

/**
 * @todo:
 * SUMA crashes if an index is created at the same time as
 * global replication. Very easy to reproduce using testIndex.
 * Note: This only happens occasionally, but is quite easy to reprod.
 */

Uint32 g_subPtrI = RNIL;
static const Uint32 SUMA_SEQUENCE = 0xBABEBABE;


/**************************************************************
 *
 * Start of suma
 *
 */

#define PRINT_ONLY 0
static Uint32 g_TypeOfStart = NodeState::ST_ILLEGAL_TYPE;

void 
Suma::execREAD_CONFIG_REQ(Signal* signal)
{
  jamEntry();

  const ReadConfigReq * req = (ReadConfigReq*)signal->getDataPtr();

  Uint32 ref = req->senderRef;
  Uint32 senderData = req->senderData;

  const ndb_mgm_configuration_iterator * p = 
    theConfiguration.getOwnConfigIterator();
  ndbrequire(p != 0);

  // SumaParticipant
  Uint32 noTables;
  ndb_mgm_get_int_parameter(p, CFG_DB_NO_TABLES,  
			    &noTables);

  /**
   * @todo: fix pool sizes
   */
  c_tablePool_.setSize(noTables);
  c_tables.setSize(noTables);
  
  c_subscriptions.setSize(20); //10
  c_subscriberPool.setSize(64);
  
  c_subscriptionPool.setSize(64); //2
  c_syncPool.setSize(20); //2
  c_dataBufferPool.setSize(128);
  
  {
    SLList<SyncRecord> tmp(c_syncPool);
    Ptr<SyncRecord> ptr;
    while(tmp.seize(ptr))
      new (ptr.p) SyncRecord(* this, c_dataBufferPool);
    tmp.release();
  }

  // Suma
  c_nodePool.setSize(MAX_NDB_NODES);
  c_masterNodeId = getOwnNodeId();

  c_nodeGroup = c_noNodesInGroup = c_idInNodeGroup = 0;
  for (int i = 0; i < MAX_REPLICAS; i++) {
    c_nodesInGroup[i]   = 0;
  }

  c_subCoordinatorPool.setSize(10);

  ReadConfigConf * conf = (ReadConfigConf*)signal->getDataPtrSend();
  conf->senderRef = reference();
  conf->senderData = senderData;
  sendSignal(ref, GSN_READ_CONFIG_CONF, signal, 
	     ReadConfigConf::SignalLength, JBB);
}

void
Suma::execSTTOR(Signal* signal) {
  jamEntry();                            

  DBUG_ENTER("Suma::execSTTOR");
  const Uint32 startphase  = signal->theData[1];
  const Uint32 typeOfStart = signal->theData[7];

  DBUG_PRINT("info",("startphase = %u, typeOfStart = %u", startphase, typeOfStart));

  if(startphase == 3){
    jam();
    g_TypeOfStart = typeOfStart;
    signal->theData[0] = reference();
    sendSignal(NDBCNTR_REF, GSN_READ_NODESREQ, signal, 1, JBB);

#if 0

    /**
     * Debug
     */

    
    SubscriptionPtr subPtr;
    Ptr<SyncRecord> syncPtr;
    ndbrequire(c_subscriptions.seize(subPtr));
    ndbrequire(c_syncPool.seize(syncPtr));
    

    ndbout_c("Suma: subPtr.i = %d syncPtr.i = %d", subPtr.i, syncPtr.i);

    subPtr.p->m_syncPtrI = syncPtr.i;
    subPtr.p->m_subscriptionType = SubCreateReq::DatabaseSnapshot;
    syncPtr.p->m_subscriptionPtrI = subPtr.i;
    syncPtr.p->ptrI = syncPtr.i;
    g_subPtrI = subPtr.i;
    //    sendSTTORRY(signal);
#endif    
    DBUG_VOID_RETURN;
  }

  if(startphase == 7) {
    if(g_TypeOfStart == NodeState::ST_INITIAL_START &&
       c_masterNodeId == getOwnNodeId()) {
      jam();
      createSequence(signal);
      DBUG_VOID_RETURN;
    }//if
  }//if
  

  sendSTTORRY(signal);
  
  DBUG_VOID_RETURN;
}

void
Suma::createSequence(Signal* signal)
{
  jam();
  DBUG_ENTER("Suma::createSequence");

  UtilSequenceReq * req = (UtilSequenceReq*)signal->getDataPtrSend();
  
  req->senderData  = RNIL;
  req->sequenceId  = SUMA_SEQUENCE;
  req->requestType = UtilSequenceReq::Create;
  sendSignal(DBUTIL_REF, GSN_UTIL_SEQUENCE_REQ, 
	     signal, UtilSequenceReq::SignalLength, JBB);
  // execUTIL_SEQUENCE_CONF will call createSequenceReply()
  DBUG_VOID_RETURN;
}

void
Suma::createSequenceReply(Signal* signal,
			  UtilSequenceConf * conf,
			  UtilSequenceRef * ref)
{
  jam();

  if (ref != NULL)
    ndbrequire(false);

  sendSTTORRY(signal);
}

void
Suma::execREAD_NODESCONF(Signal* signal){
  jamEntry();
  ReadNodesConf * const conf = (ReadNodesConf *)signal->getDataPtr();
 
  c_aliveNodes.clear();
  c_preparingNodes.clear();

  Uint32 count = 0;
  for(Uint32 i = 0; i < MAX_NDB_NODES; i++){
    if(NodeBitmask::get(conf->allNodes, i)){
      jam();
      
      count++;

      NodePtr node;
      ndbrequire(c_nodes.seize(node));
      
      node.p->nodeId = i;
      if(NodeBitmask::get(conf->inactiveNodes, i)){
	jam();
	node.p->alive = 0;
      } else {
	jam();
	node.p->alive = 1;
	c_aliveNodes.set(i);
      }
    } else
      jam();
  }
  c_masterNodeId = conf->masterNodeId;
  ndbrequire(count == conf->noOfNodes);

  sendSTTORRY(signal);
}

void
Suma::sendSTTORRY(Signal* signal){
  signal->theData[0] = 0;
  signal->theData[3] = 1;
  signal->theData[4] = 3;
  signal->theData[5] = 5;
  signal->theData[6] = 7;
  signal->theData[7] = 255; // No more start phases from missra
  sendSignal(NDBCNTR_REF, GSN_STTORRY, signal, 8, JBB);
}

void
Suma::execNDB_STTOR(Signal* signal) 
{
  jamEntry();                            
}

void
Suma::execCONTINUEB(Signal* signal){
  jamEntry();
}

void
SumaParticipant::execCONTINUEB(Signal* signal) 
{
  jamEntry();
}

/*****************************************************************************
 * 
 * Node state handling
 *
 *****************************************************************************/

void
Suma::execSIGNAL_DROPPED_REP(Signal* signal){
  jamEntry();
  ndbrequire(false);
}

/********************************************************************
 *
 * Dump state
 *
 */

static unsigned
count_subscribers(const DLList<SumaParticipant::Subscriber> &subs)
{
  unsigned n= 0;
  SumaParticipant::SubscriberPtr i_subbPtr;
  subs.first(i_subbPtr);
  while(!i_subbPtr.isNull()){
    n++;
    subs.next(i_subbPtr);
  }
  return n;
}

void
Suma::execDUMP_STATE_ORD(Signal* signal){
  jamEntry();

  Uint32 tCase = signal->theData[0];
  if(tCase >= 8000 && tCase <= 8003){
    SubscriptionPtr subPtr;
    c_subscriptions.getPtr(subPtr, g_subPtrI);
    
    Ptr<SyncRecord> syncPtr;
    c_syncPool.getPtr(syncPtr, subPtr.p->m_syncPtrI);
    
    if(tCase == 8000){
      syncPtr.p->startMeta(signal);
    }
    
    if(tCase == 8001){
      syncPtr.p->startScan(signal);
    }

    if(tCase == 8003){
      subPtr.p->m_subscriptionType = SubCreateReq::SingleTableScan;
      LocalDataBuffer<15> attrs(c_dataBufferPool, syncPtr.p->m_attributeList);
      Uint32 tab = 0;
      Uint32 att[] = { 0, 1, 1 };
      syncPtr.p->m_tableList.append(&tab, 1);
      attrs.append(att, 3);
    }
  }

  if(tCase == 8004){
    infoEvent("Suma: c_subscriberPool  size: %d free: %d",
	      c_subscriberPool.getSize(),
	      c_subscriberPool.getNoOfFree());

    infoEvent("Suma: c_tablePool  size: %d free: %d",
	      c_tablePool_.getSize(),
	      c_tablePool_.getNoOfFree());

    infoEvent("Suma: c_subscriptionPool  size: %d free: %d",
	      c_subscriptionPool.getSize(),
	      c_subscriptionPool.getNoOfFree());

    infoEvent("Suma: c_syncPool  size: %d free: %d",
	      c_syncPool.getSize(),
	      c_syncPool.getNoOfFree());

    infoEvent("Suma: c_dataBufferPool  size: %d free: %d",
	      c_dataBufferPool.getSize(),
	      c_dataBufferPool.getNoOfFree());

    infoEvent("Suma: c_metaSubscribers count: %d",
	      count_subscribers(c_metaSubscribers));
    infoEvent("Suma: c_dataSubscribers count: %d",
	      count_subscribers(c_dataSubscribers));
    infoEvent("Suma: c_prepDataSubscribers count: %d",
	      count_subscribers(c_prepDataSubscribers));
    infoEvent("Suma: c_removeDataSubscribers count: %d",
	      count_subscribers(c_removeDataSubscribers));
  }
}

/********************************************************************
 *
 * Convert a table name (db+schema+tablename) to tableId
 *
 */

#if 0
void
SumaParticipant::convertNameToId(SubscriptionPtr subPtr, Signal * signal)
{
  jam();
  if(subPtr.p->m_currentTable < subPtr.p->m_maxTables) {
    jam();

    GetTableIdReq * req = (GetTableIdReq *)signal->getDataPtrSend();
    char * tableName = subPtr.p->m_tableNames[subPtr.p->m_currentTable];
    const Uint32 strLen = strlen(tableName) + 1; // NULL Terminated
    req->senderRef  = reference();
    req->senderData = subPtr.i;
    req->len        = strLen;

    LinearSectionPtr ptr[1];
    ptr[0].p  = (Uint32*)tableName;
    ptr[0].sz = strLen;

    sendSignal(DBDICT_REF,
	       GSN_GET_TABLEID_REQ, 
	       signal, 
	       GetTableIdReq::SignalLength,
	       JBB,
	       ptr,
	       1);
  } else {
    jam();
    sendSubCreateConf(signal, subPtr.p->m_subscriberRef, subPtr);
  }
}
#endif


void 
SumaParticipant::addTableId(Uint32 tableId,
			    SubscriptionPtr subPtr, SyncRecord *psyncRec)
{
#ifdef NODEFAIL_DEBUG
  ndbout_c("SumaParticipant::addTableId(%u,%u,%u), current_table=%u",
	   tableId, subPtr.i, psyncRec, subPtr.p->m_currentTable);
#endif
  subPtr.p->m_tables[tableId] = 1;
  subPtr.p->m_currentTable++;
  if(psyncRec != NULL)
    psyncRec->m_tableList.append(&tableId, 1);  
}

#if 0
void 
SumaParticipant::execGET_TABLEID_CONF(Signal * signal)
{
  jamEntry();

  GetTableIdConf* conf = (GetTableIdConf *)signal->getDataPtr();
  Uint32 tableId = conf->tableId;
  //Uint32 schemaVersion = conf->schemaVersion;  
  Uint32 senderData = conf->senderData;

  SubscriptionPtr subPtr;
  Ptr<SyncRecord> syncPtr;

  c_subscriptions.getPtr(subPtr, senderData);
  c_syncPool.getPtr(syncPtr, subPtr.p->m_syncPtrI);  

  /*
   * add to m_tableList
   */
  addTableId(tableId, subPtr, syncPtr.p);