fixed init of variables in ndb block constructors

ndb/src/kernel/blocks/dbdih/DbdihInit.cpp

@@ -262,6 +262,18 @@ Dbdih::Dbdih(const class Configuration & config):
 
   addRecSignal(GSN_CREATE_FRAGMENTATION_REQ, 
 	       &Dbdih::execCREATE_FRAGMENTATION_REQ);
+
+  apiConnectRecord = 0;  
+  connectRecord = 0;  
+  fileRecord = 0;  
+  fragmentstore = 0;
+  pageRecord = 0;  
+  replicaRecord = 0;  
+  tabRecord = 0;
+  createReplicaRecord = 0;  
+  nodeGroupRecord = 0;  
+  nodeRecord = 0;
+  takeOverRecord = 0;
 }//Dbdih::Dbdih()
 
 Dbdih::~Dbdih() 

ndb/src/kernel/blocks/dbtc/DbtcInit.cpp

@@ -291,6 +291,19 @@ Dbtc::Dbtc(const class Configuration & conf):
   
   addRecSignal(GSN_ALTER_TAB_REQ, &Dbtc::execALTER_TAB_REQ);
 
+  cacheRecord = 0;
+  apiConnectRecord = 0;
+  tcConnectRecord = 0;
+  hostRecord = 0;
+  tableRecord = 0;
+  scanRecord = 0;
+  databufRecord = 0;
+  attrbufRecord = 0;
+  gcpRecord = 0;
+  tcFailRecord = 0;
+  c_apiConTimer = 0;
+  c_apiConTimer_line = 0;
+
 #ifdef VM_TRACE
   {
     void* tmp[] = { &apiConnectptr, 

ndb/src/kernel/blocks/dbtup/DbtupGen.cpp

@@ -126,6 +126,22 @@ Dbtup::Dbtup(const class Configuration & conf)
   addRecSignal(GSN_ACC_CHECK_SCAN, &Dbtup::execACC_CHECK_SCAN);
 
   initData();
+
+  attrbufrec = 0;  
+  checkpointInfo = 0;  
+  diskBufferSegmentInfo = 0;  
+  fragoperrec = 0;
+  fragrecord = 0;  
+  hostBuffer = 0;  
+  localLogInfo = 0;  
+  operationrec = 0;
+  page = 0;  
+  pageRange = 0;
+  pendingFileOpenInfo = 0;  
+  restartInfoRecord = 0;  
+  tablerec = 0;  
+  tableDescriptor = 0;  
+  undoPage = 0;
 }//Dbtup::Dbtup()
 
 Dbtup::~Dbtup() 

ndb/src/kernel/blocks/ndbfs/Ndbfs.cpp

@@ -71,6 +71,8 @@ Ndbfs::Ndbfs(const Configuration & conf) :
   addRecSignal(GSN_FSAPPENDREQ, &Ndbfs::execFSAPPENDREQ);
   addRecSignal(GSN_FSREMOVEREQ, &Ndbfs::execFSREMOVEREQ);
    // Set send signals
+
+  theRequestPool = 0;
 }
 
 Ndbfs::~Ndbfs()
@@ -85,7 +87,8 @@ Ndbfs::~Ndbfs()
   }//for
   theFiles.clear();
 
-  delete theRequestPool;
+  if (theRequestPool)
+    delete theRequestPool;
 }
 
 void