NDBAPI cleanup

17 files changed, 184 insertions, 118 deletions

diff --git a/sql/ha_ndbcluster.cc b/sql/ha_ndbcluster.cc
index e8f2ec2af2b..140ea994cad 100644
--- a/sql/ha_ndbcluster.cc
+++ b/sql/ha_ndbcluster.cc
@@ -48,6 +48,16 @@
 extern my_bool opt_ndb_optimized_node_selection;
 extern const char *opt_ndbcluster_connectstring;
 
+// ndb interface initialization/cleanup
+#ifdef  __cplusplus
+extern "C" {
+#endif
+extern void ndb_init_internal();
+extern void ndb_end_internal();
+#ifdef  __cplusplus
+}
+#endif
+
 const char *ndb_distribution_names[]= {"KEYHASH", "LINHASH", NullS};
 TYPELIB ndb_distribution_typelib= { array_elements(ndb_distribution_names)-1,
                                     "", ndb_distribution_names, NULL };
@@ -6392,6 +6402,9 @@ static int ndbcluster_init()
   if (have_ndbcluster != SHOW_OPTION_YES)
     DBUG_RETURN(0); // nothing else to do
 
+  // Initialize ndb interface
+  ndb_init_internal();
+
   // Set connectstring if specified
   if (opt_ndbcluster_connectstring != 0)
     DBUG_PRINT("connectstring", ("%s", opt_ndbcluster_connectstring));     
@@ -6540,6 +6553,9 @@ static int ndbcluster_end(ha_panic_function type)
   delete g_ndb_cluster_connection;
   g_ndb_cluster_connection= NULL;
 
+  // cleanup ndb interface
+  ndb_end_internal();
+
   pthread_mutex_destroy(&ndbcluster_mutex);
   pthread_mutex_destroy(&LOCK_ndb_util_thread);
   pthread_cond_destroy(&COND_ndb_util_thread);
diff --git a/sql/ha_ndbcluster_binlog.cc b/sql/ha_ndbcluster_binlog.cc
index ee9e639199c..2b03d4f82f7 100644
--- a/sql/ha_ndbcluster_binlog.cc
+++ b/sql/ha_ndbcluster_binlog.cc
@@ -25,6 +25,7 @@
 #include "slave.h"
 #include "ha_ndbcluster_binlog.h"
 #include "NdbDictionary.hpp"
+#include "ndb_cluster_connection.hpp"
 #include <util/NdbAutoPtr.hpp>
 
 #ifdef ndb_dynamite
@@ -111,8 +112,7 @@ static NDB_SCHEMA_OBJECT *ndb_get_schema_object(const char *key,
 static void ndb_free_schema_object(NDB_SCHEMA_OBJECT **ndb_schema_object,
                                    bool have_lock);
 
-/* instantiated in storage/ndb/src/ndbapi/Ndbif.cpp */
-extern Uint64 g_latest_trans_gci;
+static Uint64 *p_latest_trans_gci= 0;
 
 /*
   Global variables for holding the binlog_index table reference
@@ -439,7 +439,7 @@ static void ndbcluster_binlog_wait(THD *thd)
   {
     DBUG_ENTER("ndbcluster_binlog_wait");
     const char *save_info= thd ? thd->proc_info : 0;
-    ulonglong wait_epoch= g_latest_trans_gci;
+    ulonglong wait_epoch= *p_latest_trans_gci;
     int count= 30;
     if (thd)
       thd->proc_info= "Waiting for ndbcluster binlog update to "
@@ -3284,6 +3284,7 @@ static void ndb_free_schema_object(NDB_SCHEMA_OBJECT **ndb_schema_object,
   DBUG_VOID_RETURN;
 }
 
+
 pthread_handler_t ndb_binlog_thread_func(void *arg)
 {
   THD *thd; /* needs to be first for thread_stack */
@@ -3292,6 +3293,7 @@ pthread_handler_t ndb_binlog_thread_func(void *arg)
   Thd_ndb *thd_ndb=0;
   int ndb_update_binlog_index= 1;
   injector *inj= injector::instance();
+
 #ifdef RUN_NDB_BINLOG_TIMER
   Timer main_timer;
 #endif
@@ -3380,6 +3382,8 @@ pthread_handler_t ndb_binlog_thread_func(void *arg)
   */
   injector_thd= thd;
   injector_ndb= i_ndb;
+  p_latest_trans_gci= 
+    injector_ndb->get_ndb_cluster_connection().get_latest_trans_gci();
   schema_ndb= s_ndb;
   ndb_binlog_thread_running= 1;
   if (opt_bin_log)
@@ -3476,7 +3480,7 @@ restart:
                         "ndb_latest_handled_binlog_epoch: %u, while current epoch: %u. "
                         "RESET MASTER should be issued. Resetting ndb_latest_handled_binlog_epoch.",
                         (unsigned) ndb_latest_handled_binlog_epoch, (unsigned) schema_gci);
-        g_latest_trans_gci= 0;
+        *p_latest_trans_gci= 0;
         ndb_latest_handled_binlog_epoch= 0;
         ndb_latest_applied_binlog_epoch= 0;
         ndb_latest_received_binlog_epoch= 0;
@@ -3503,7 +3507,7 @@ restart:
   }
   do_ndbcluster_binlog_close_connection= BCCC_running;
   for ( ; !((abort_loop || do_ndbcluster_binlog_close_connection) &&
-            ndb_latest_handled_binlog_epoch >= g_latest_trans_gci) &&
+            ndb_latest_handled_binlog_epoch >= *p_latest_trans_gci) &&
           do_ndbcluster_binlog_close_connection != BCCC_restart; )
   {
 #ifndef DBUG_OFF
@@ -3511,8 +3515,8 @@ restart:
     {
       DBUG_PRINT("info", ("do_ndbcluster_binlog_close_connection: %d, "
                           "ndb_latest_handled_binlog_epoch: %llu, "
-                          "g_latest_trans_gci: %llu", do_ndbcluster_binlog_close_connection,
-                          ndb_latest_handled_binlog_epoch, g_latest_trans_gci));
+                          "*p_latest_trans_gci: %llu", do_ndbcluster_binlog_close_connection,
+                          ndb_latest_handled_binlog_epoch, *p_latest_trans_gci));
     }
 #endif
 #ifdef RUN_NDB_BINLOG_TIMER
@@ -3548,7 +3552,7 @@ restart:
     }
 
     if ((abort_loop || do_ndbcluster_binlog_close_connection) &&
-        (ndb_latest_handled_binlog_epoch >= g_latest_trans_gci ||
+        (ndb_latest_handled_binlog_epoch >= *p_latest_trans_gci ||
          !ndb_binlog_running))
       break; /* Shutting down server */
 
@@ -3598,11 +3602,11 @@ restart:
           {
             DBUG_PRINT("info", ("do_ndbcluster_binlog_close_connection= BCCC_restart"));
             do_ndbcluster_binlog_close_connection= BCCC_restart;
-            if (ndb_latest_received_binlog_epoch < g_latest_trans_gci && ndb_binlog_running)
+            if (ndb_latest_received_binlog_epoch < *p_latest_trans_gci && ndb_binlog_running)
             {
               sql_print_error("NDB Binlog: latest transaction in epoch %lld not in binlog "
                               "as latest received epoch is %lld",
-                              g_latest_trans_gci, ndb_latest_received_binlog_epoch);
+                              *p_latest_trans_gci, ndb_latest_received_binlog_epoch);
             }
           }
         }
@@ -3784,11 +3788,11 @@ restart:
             {
               DBUG_PRINT("info", ("do_ndbcluster_binlog_close_connection= BCCC_restart"));
               do_ndbcluster_binlog_close_connection= BCCC_restart;
-              if (ndb_latest_received_binlog_epoch < g_latest_trans_gci && ndb_binlog_running)
+              if (ndb_latest_received_binlog_epoch < *p_latest_trans_gci && ndb_binlog_running)
               {
                 sql_print_error("NDB Binlog: latest transaction in epoch %lld not in binlog "
                                 "as latest received epoch is %lld",
-                                g_latest_trans_gci, ndb_latest_received_binlog_epoch);
+                                *p_latest_trans_gci, ndb_latest_received_binlog_epoch);
               }
             }
           }
@@ -3861,6 +3865,7 @@ err:
   /* don't mess with the injector_ndb anymore from other threads */
   injector_thd= 0;
   injector_ndb= 0;
+  p_latest_trans_gci= 0;
   schema_ndb= 0;
   pthread_mutex_unlock(&injector_mutex);
   thd->db= 0; // as not to try to free memory
@@ -3960,7 +3965,7 @@ ndbcluster_show_status_binlog(THD* thd, stat_print_fn *stat_print,
                "latest_handled_binlog_epoch=%s, "
                "latest_applied_binlog_epoch=%s",
                llstr(ndb_latest_epoch, buff1),
-               llstr(g_latest_trans_gci, buff2),
+               llstr(*p_latest_trans_gci, buff2),
                llstr(ndb_latest_received_binlog_epoch, buff3),
                llstr(ndb_latest_handled_binlog_epoch, buff4),
                llstr(ndb_latest_applied_binlog_epoch, buff5));
diff --git a/storage/ndb/include/ndbapi/Ndb.hpp b/storage/ndb/include/ndbapi/Ndb.hpp
index 07f11f6e78a..5c6ad76c063 100644
--- a/storage/ndb/include/ndbapi/Ndb.hpp
+++ b/storage/ndb/include/ndbapi/Ndb.hpp
@@ -1095,6 +1095,15 @@ public:
 
 #ifndef DOXYGEN_SHOULD_SKIP_INTERNAL
   /**
+   * The current ndb_cluster_connection get_ndb_cluster_connection.
+   *
+   * @return the current connection
+   */
+  Ndb_cluster_connection& get_ndb_cluster_connection();
+#endif
+
+#ifndef DOXYGEN_SHOULD_SKIP_INTERNAL
+  /**
    * The current catalog name can be fetched by getCatalogName.
    *
    * @return the current catalog name
diff --git a/storage/ndb/include/ndbapi/NdbTransaction.hpp b/storage/ndb/include/ndbapi/NdbTransaction.hpp
index 3edb8c60c13..b3fb07d2905 100644
--- a/storage/ndb/include/ndbapi/NdbTransaction.hpp
+++ b/storage/ndb/include/ndbapi/NdbTransaction.hpp
@@ -735,6 +735,7 @@ private:
   Uint32	theTCConPtr;				// Transaction Co-ordinator connection pointer.
   Uint64	theTransactionId;			// theTransactionId of the transaction
   Uint32	theGlobalCheckpointId;			// The gloabl checkpoint identity of the transaction
+  Uint64 *p_latest_trans_gci;                           // Reference to latest gci for connection
   ConStatusType	theStatus;				// The status of the connection		
   enum CompletionStatus { 
     NotCompleted,
@@ -753,7 +754,7 @@ private:
   bool theTransactionIsStarted; 
   bool theInUseState;
   bool theSimpleState;
-  Uint8 m_abortOption;           // Type of commit
+  Uint8 m_abortOption;           // Type of commi
 
   enum ListState {  
     NotInList, 
diff --git a/storage/ndb/include/ndbapi/ndb_cluster_connection.hpp b/storage/ndb/include/ndbapi/ndb_cluster_connection.hpp
index a803d010e61..e641802a08c 100644
--- a/storage/ndb/include/ndbapi/ndb_cluster_connection.hpp
+++ b/storage/ndb/include/ndbapi/ndb_cluster_connection.hpp
@@ -114,6 +114,8 @@ public:
 
   void init_get_next_node(Ndb_cluster_connection_node_iter &iter);
   unsigned int get_next_node(Ndb_cluster_connection_node_iter &iter);
+  
+  Uint64 *get_latest_trans_gci();
 #endif
 
 private:
diff --git a/storage/ndb/include/transporter/TransporterRegistry.hpp b/storage/ndb/include/transporter/TransporterRegistry.hpp
index 0bb9733e8c4..89ae3a19e87 100644
--- a/storage/ndb/include/transporter/TransporterRegistry.hpp
+++ b/storage/ndb/include/transporter/TransporterRegistry.hpp
@@ -361,6 +361,7 @@ private:
   Uint32 poll_SHM(Uint32 timeOutMillis);
 
   int m_shm_own_pid;
+  int m_transp_count;
 };
 
 #endif // Define of TransporterRegistry_H
diff --git a/storage/ndb/src/common/transporter/Packer.cpp b/storage/ndb/src/common/transporter/Packer.cpp
index bcfac8417bb..e9da641de75 100644
--- a/storage/ndb/src/common/transporter/Packer.cpp
+++ b/storage/ndb/src/common/transporter/Packer.cpp
@@ -213,8 +213,8 @@ TransporterRegistry::unpack(Uint32 * readPtr,
 			    Uint32 * eodPtr,
 			    NodeId remoteNodeId,
 			    IOState state) {
-  static SignalHeader signalHeader;
-  static LinearSectionPtr ptr[3];
+  SignalHeader signalHeader;
+  LinearSectionPtr ptr[3];
   Uint32 loop_count = 0;
   if(state == NoHalt || state == HaltOutput){
     while ((readPtr < eodPtr) && (loop_count < MAX_RECEIVED_SIGNALS)) {
diff --git a/storage/ndb/src/common/transporter/TransporterRegistry.cpp b/storage/ndb/src/common/transporter/TransporterRegistry.cpp
index 458f7c4f47e..4a0be702a86 100644
--- a/storage/ndb/src/common/transporter/TransporterRegistry.cpp
+++ b/storage/ndb/src/common/transporter/TransporterRegistry.cpp
@@ -80,14 +80,15 @@ SocketServer::Session * TransporterService::newSession(NDB_SOCKET_TYPE sockfd)
 
 TransporterRegistry::TransporterRegistry(void * callback,
 					 unsigned _maxTransporters,
-					 unsigned sizeOfLongSignalMemory)
+					 unsigned sizeOfLongSignalMemory) :
+  m_mgm_handle(0),
+  m_transp_count(0)
 {
   DBUG_ENTER("TransporterRegistry::TransporterRegistry");
 
   nodeIdSpecified = false;
   maxTransporters = _maxTransporters;
   sendCounter = 1;
-  m_mgm_handle= 0;
   
   callbackObj=callback;
 
@@ -1002,7 +1003,6 @@ TransporterRegistry::performReceive()
 #endif
 }
 
-static int x = 0;
 void
 TransporterRegistry::performSend()
 {
@@ -1070,7 +1070,7 @@ TransporterRegistry::performSend()
     }
 #endif
 #ifdef NDB_TCP_TRANSPORTER
-  for (i = x; i < nTCPTransporters; i++) 
+  for (i = m_transp_count; i < nTCPTransporters; i++) 
   {
     TCP_Transporter *t = theTCPTransporters[i];
     if (t && t->hasDataToSend() && t->isConnected() &&
@@ -1079,7 +1079,7 @@ TransporterRegistry::performSend()
       t->doSend();
     }
   }
-  for (i = 0; i < x && i < nTCPTransporters; i++) 
+  for (i = 0; i < m_transp_count && i < nTCPTransporters; i++) 
   {
     TCP_Transporter *t = theTCPTransporters[i];
     if (t && t->hasDataToSend() && t->isConnected() &&
@@ -1088,8 +1088,8 @@ TransporterRegistry::performSend()
       t->doSend();
     }
   }
-  x++;
-  if (x == nTCPTransporters) x = 0;
+  m_transp_count++;
+  if (m_transp_count == nTCPTransporters) m_transp_count = 0;
 #endif
 #endif
 #ifdef NDB_SCI_TRANSPORTER
diff --git a/storage/ndb/src/common/util/ndb_init.c b/storage/ndb/src/common/util/ndb_init.c
index f3aa734d7f9..0c71a74371a 100644
--- a/storage/ndb/src/common/util/ndb_init.c
+++ b/storage/ndb/src/common/util/ndb_init.c
@@ -16,6 +16,16 @@
 
 #include <ndb_global.h>
 #include <my_sys.h>
+#include <NdbMutex.h>
+
+NdbMutex *g_ndb_connection_mutex = NULL;
+
+void
+ndb_init_internal()
+{
+  if (!g_ndb_connection_mutex)
+    g_ndb_connection_mutex = NdbMutex_Create();
+}
 
 int
 ndb_init()
@@ -25,11 +35,20 @@ ndb_init()
     write(2, err, strlen(err));
     exit(1);
   }
+  ndb_init_internal();
   return 0;
 }
 
 void
+ndb_end_internal()
+{
+  if (g_ndb_connection_mutex)
+    NdbMutex_Destroy(g_ndb_connection_mutex);
+}
+
+void
 ndb_end(int flags)
 {
   my_end(flags);
+  ndb_end_internal();
 }
diff --git a/storage/ndb/src/mgmapi/mgmapi.cpp b/storage/ndb/src/mgmapi/mgmapi.cpp
index 43021a8d669..f9eb2abd003 100644
--- a/storage/ndb/src/mgmapi/mgmapi.cpp
+++ b/storage/ndb/src/mgmapi/mgmapi.cpp
@@ -1194,7 +1194,7 @@ const unsigned int *
 ndb_mgm_get_clusterlog_severity_filter(NdbMgmHandle handle) 
 {
   SET_ERROR(handle, NDB_MGM_NO_ERROR, "Executing: ndb_mgm_get_clusterlog_severity_filter");
-  static unsigned int enabled[(int)NDB_MGM_EVENT_SEVERITY_ALL]=
+  unsigned int enabled[(int)NDB_MGM_EVENT_SEVERITY_ALL]=
     {0,0,0,0,0,0,0};
   const ParserRow<ParserDummy> getinfo_reply[] = {
     MGM_CMD("clusterlog", NULL, ""),
diff --git a/storage/ndb/src/ndbapi/Ndb.cpp b/storage/ndb/src/ndbapi/Ndb.cpp
index 5eddbc35665..973b400f5a2 100644
--- a/storage/ndb/src/ndbapi/Ndb.cpp
+++ b/storage/ndb/src/ndbapi/Ndb.cpp
@@ -1172,6 +1172,12 @@ convertEndian(Uint32 Data)
 }
 
 // <internal>
+Ndb_cluster_connection &
+Ndb::get_ndb_cluster_connection()
+{
+  return theImpl->m_ndb_cluster_connection;
+}
+
 const char * Ndb::getCatalogName() const
 {
   return theImpl->m_dbname.c_str();
diff --git a/storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp b/storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp
index b9c03f0b209..5de686a257f 100644
--- a/storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp
+++ b/storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp
@@ -1303,8 +1303,6 @@ NdbDictionaryImpl::NdbDictionaryImpl(Ndb &ndb,
   m_local_table_data_size= 0;
 }
 
-static int f_dictionary_count = 0;
-
 NdbDictionaryImpl::~NdbDictionaryImpl()
 {
   NdbElement_t<Ndb_local_table_info> * curr = m_localHash.m_tableHash.getNext(0);
@@ -1317,33 +1315,6 @@ NdbDictionaryImpl::~NdbDictionaryImpl()
       
       curr = m_localHash.m_tableHash.getNext(curr);
     }
-    
-    m_globalHash->lock();
-    if(--f_dictionary_count == 0){
-      delete NdbDictionary::Column::FRAGMENT; 
-      delete NdbDictionary::Column::FRAGMENT_FIXED_MEMORY;
-      delete NdbDictionary::Column::FRAGMENT_VARSIZED_MEMORY;
-      delete NdbDictionary::Column::ROW_COUNT;
-      delete NdbDictionary::Column::COMMIT_COUNT;
-      delete NdbDictionary::Column::ROW_SIZE;
-      delete NdbDictionary::Column::RANGE_NO;
-      delete NdbDictionary::Column::DISK_REF;
-      delete NdbDictionary::Column::RECORDS_IN_RANGE;
-      delete NdbDictionary::Column::ROWID;
-      delete NdbDictionary::Column::ROW_GCI;
-      NdbDictionary::Column::FRAGMENT= 0;
-      NdbDictionary::Column::FRAGMENT_FIXED_MEMORY= 0;
-      NdbDictionary::Column::FRAGMENT_VARSIZED_MEMORY= 0;
-      NdbDictionary::Column::ROW_COUNT= 0;
-      NdbDictionary::Column::COMMIT_COUNT= 0;
-      NdbDictionary::Column::ROW_SIZE= 0;
-      NdbDictionary::Column::RANGE_NO= 0;
-      NdbDictionary::Column::DISK_REF= 0;
-      NdbDictionary::Column::RECORDS_IN_RANGE= 0;
-      NdbDictionary::Column::ROWID= 0;
-      NdbDictionary::Column::ROW_GCI= 0;
-    }
-    m_globalHash->unlock();
   } else {
     assert(curr == 0);
   }
@@ -1486,32 +1457,6 @@ NdbDictionaryImpl::setTransporter(class Ndb* ndb,
 {
   m_globalHash = &tf->m_globalDictCache;
   if(m_receiver.setTransporter(ndb, tf)){
-    m_globalHash->lock();
-    if(f_dictionary_count++ == 0){
-      NdbDictionary::Column::FRAGMENT= 
-	NdbColumnImpl::create_pseudo("NDB$FRAGMENT");
-      NdbDictionary::Column::FRAGMENT_FIXED_MEMORY= 
-	NdbColumnImpl::create_pseudo("NDB$FRAGMENT_FIXED_MEMORY");
-      NdbDictionary::Column::FRAGMENT_VARSIZED_MEMORY= 
-	NdbColumnImpl::create_pseudo("NDB$FRAGMENT_VARSIZED_MEMORY");
-      NdbDictionary::Column::ROW_COUNT= 
-	NdbColumnImpl::create_pseudo("NDB$ROW_COUNT");
-      NdbDictionary::Column::COMMIT_COUNT= 
-	NdbColumnImpl::create_pseudo("NDB$COMMIT_COUNT");
-      NdbDictionary::Column::ROW_SIZE=
-	NdbColumnImpl::create_pseudo("NDB$ROW_SIZE");
-      NdbDictionary::Column::RANGE_NO= 
-	NdbColumnImpl::create_pseudo("NDB$RANGE_NO");
-      NdbDictionary::Column::DISK_REF= 
-	NdbColumnImpl::create_pseudo("NDB$DISK_REF");
-      NdbDictionary::Column::RECORDS_IN_RANGE= 
-	NdbColumnImpl::create_pseudo("NDB$RECORDS_IN_RANGE");
-      NdbDictionary::Column::ROWID= 
-	NdbColumnImpl::create_pseudo("NDB$ROWID");
-      NdbDictionary::Column::ROW_GCI= 
-	NdbColumnImpl::create_pseudo("NDB$ROW_GCI");
-    }
-    m_globalHash->unlock();
     return true;
   }
   return false;
diff --git a/storage/ndb/src/ndbapi/NdbEventOperationImpl.cpp b/storage/ndb/src/ndbapi/NdbEventOperationImpl.cpp
index 06b0d7ea5b9..d3992981522 100644
--- a/storage/ndb/src/ndbapi/NdbEventOperationImpl.cpp
+++ b/storage/ndb/src/ndbapi/NdbEventOperationImpl.cpp
@@ -925,8 +925,6 @@ NdbEventOperationImpl::printAll()
  * Each Ndb object has a Object.
  */
 
-// ToDo ref count this so it get's destroyed
-NdbMutex *NdbEventBuffer::p_add_drop_mutex= 0;
 
 NdbEventBuffer::NdbEventBuffer(Ndb *ndb) :
   m_system_nodes(ndb->theImpl->theNoOfDBnodes),
@@ -938,7 +936,8 @@ NdbEventBuffer::NdbEventBuffer(Ndb *ndb) :
   m_max_free_thresh(100),
   m_gci_slip_thresh(3),
   m_dropped_ev_op(0),
-  m_active_op_count(0)
+  m_active_op_count(0),
+  m_add_drop_mutex(0)
 {
 #ifdef VM_TRACE
   m_latest_command= "NdbEventBuffer::NdbEventBuffer";
@@ -950,16 +949,6 @@ NdbEventBuffer::NdbEventBuffer(Ndb *ndb) :
     exit(-1);
   }
   m_mutex= ndb->theImpl->theWaiter.m_mutex;
-  lock();
-  if (p_add_drop_mutex == 0)
-  {
-    if ((p_add_drop_mutex = NdbMutex_Create()) == NULL) {
-      ndbout_c("NdbEventBuffer: NdbMutex_Create() failed");
-      exit(-1);
-    }
-  }
-  unlock();
-
   // ToDo set event buffer size
   // pre allocate event data array
   m_sz= 0;
@@ -969,6 +958,10 @@ NdbEventBuffer::NdbEventBuffer(Ndb *ndb) :
   m_free_data= 0;
   m_free_data_sz= 0;
 
+  // get reference to mutex managed by current connection
+  m_add_drop_mutex= 
+    m_ndb->theImpl->m_ndb_cluster_connection.m_event_add_drop_mutex;
+
   // initialize lists
   bzero(&g_empty_gci_container, sizeof(Gci_container));
   init_gci_containers();
@@ -1006,14 +999,6 @@ NdbEventBuffer::~NdbEventBuffer()
   }
 
   NdbCondition_Destroy(p_cond);
-
-  lock();
-  if (p_add_drop_mutex)
-  {
-    NdbMutex_Destroy(p_add_drop_mutex);
-    p_add_drop_mutex = 0;
-  }
-  unlock();
 }
 
 void
diff --git a/storage/ndb/src/ndbapi/NdbEventOperationImpl.hpp b/storage/ndb/src/ndbapi/NdbEventOperationImpl.hpp
index 561e79a137e..1444d182042 100644
--- a/storage/ndb/src/ndbapi/NdbEventOperationImpl.hpp
+++ b/storage/ndb/src/ndbapi/NdbEventOperationImpl.hpp
@@ -406,8 +406,8 @@ public:
   void dropEventOperation(NdbEventOperation *);
   static NdbEventOperationImpl* getEventOperationImpl(NdbEventOperation* tOp);
 
-  void add_drop_lock() { NdbMutex_Lock(p_add_drop_mutex); }
-  void add_drop_unlock() { NdbMutex_Unlock(p_add_drop_mutex); }
+  void add_drop_lock() { NdbMutex_Lock(m_add_drop_mutex); }
+  void add_drop_unlock() { NdbMutex_Unlock(m_add_drop_mutex); }
   void lock() { NdbMutex_Lock(m_mutex); }
   void unlock() { NdbMutex_Unlock(m_mutex); }
 
@@ -509,6 +509,7 @@ private:
   NdbEventOperationImpl *m_dropped_ev_op;
 
   Uint32 m_active_op_count;
+  NdbMutex *m_add_drop_mutex;
 };
 
 inline
diff --git a/storage/ndb/src/ndbapi/NdbTransaction.cpp b/storage/ndb/src/ndbapi/NdbTransaction.cpp
index 916135b12d5..9788b9bdce6 100644
--- a/storage/ndb/src/ndbapi/NdbTransaction.cpp
+++ b/storage/ndb/src/ndbapi/NdbTransaction.cpp
@@ -32,8 +32,6 @@
 #include <signaldata/TcKeyFailConf.hpp>
 #include <signaldata/TcHbRep.hpp>
 
-Uint64 g_latest_trans_gci = 0;
-
 /*****************************************************************************
 NdbTransaction( Ndb* aNdb );
 
@@ -64,6 +62,7 @@ NdbTransaction::NdbTransaction( Ndb* aNdb ) :
   theTCConPtr(0),
   theTransactionId(0),
   theGlobalCheckpointId(0),
+  p_latest_trans_gci(0),
   theStatus(NotConnected),
   theCompletionStatus(NotCompleted), 
   theCommitStatus(NotStarted),
@@ -129,6 +128,8 @@ NdbTransaction::init()
   theCompletedLastOp	  = NULL;
 
   theGlobalCheckpointId   = 0;
+  p_latest_trans_gci      =
+    theNdb->theImpl->m_ndb_cluster_connection.get_latest_trans_gci();
   theCommitStatus         = Started;
   theCompletionStatus     = NotCompleted;
   m_abortOption           = AbortOnError;
@@ -1572,7 +1573,7 @@ NdbTransaction::receiveTC_COMMITCONF(const TcCommitConf * commitConf)
     theGlobalCheckpointId = commitConf->gci;
     // theGlobalCheckpointId == 0 if NoOp transaction
     if (theGlobalCheckpointId)
-      g_latest_trans_gci = theGlobalCheckpointId;
+      *p_latest_trans_gci = theGlobalCheckpointId;
     return 0;
   } else {
 #ifdef NDB_NO_DROPPED_SIGNAL
@@ -1752,7 +1753,7 @@ from other transactions.
       theCommitStatus = Committed;
       theGlobalCheckpointId = tGCI;
       assert(tGCI);
-      g_latest_trans_gci = tGCI;
+      *p_latest_trans_gci = tGCI;
     } else if ((tNoComp >= tNoSent) &&
                (theLastExecOpInList->theCommitIndicator == 1)){
 
@@ -1930,7 +1931,7 @@ NdbTransaction::receiveTCINDXCONF(const TcIndxConf * indxConf,
       theCommitStatus = Committed;
       theGlobalCheckpointId = tGCI;
       assert(tGCI);
-      g_latest_trans_gci = tGCI;
+      *p_latest_trans_gci = tGCI;
     } else if ((tNoComp >= tNoSent) &&
                (theLastExecOpInList->theCommitIndicator == 1)){
       /**********************************************************************/
diff --git a/storage/ndb/src/ndbapi/ndb_cluster_connection.cpp b/storage/ndb/src/ndbapi/ndb_cluster_connection.cpp
index a7e645f5100..12264a60082 100644
--- a/storage/ndb/src/ndbapi/ndb_cluster_connection.cpp
+++ b/storage/ndb/src/ndbapi/ndb_cluster_connection.cpp
@@ -35,8 +35,6 @@
 #include <EventLogger.hpp>
 EventLogger g_eventLogger;
 
-static int g_run_connect_thread= 0;
-
 #include <NdbMutex.h>
 #ifdef VM_TRACE
 NdbMutex *ndb_print_state_mutex= NULL;
@@ -87,8 +85,9 @@ const char *Ndb_cluster_connection::get_connectstring(char *buf,
 
 pthread_handler_t run_ndb_cluster_connection_connect_thread(void *me)
 {
-  g_run_connect_thread= 1;
-  ((Ndb_cluster_connection_impl*) me)->connect_thread();
+  Ndb_cluster_connection_impl* connection= (Ndb_cluster_connection_impl*) me;
+  connection->m_run_connect_thread= 1;
+  connection->connect_thread();
   return me;
 }
 
@@ -258,9 +257,6 @@ unsigned Ndb_cluster_connection::get_connect_count() const
   return m_impl.get_connect_count();
 }
 
-
-
-
 /*
  * Ndb_cluster_connection_impl
  */
@@ -269,11 +265,17 @@ Ndb_cluster_connection_impl::Ndb_cluster_connection_impl(const char *
 							 connect_string)
   : Ndb_cluster_connection(*this),
     m_optimized_node_selection(1),
-    m_name(0)
+    m_name(0),
+    m_run_connect_thread(0),
+    m_event_add_drop_mutex(0),
+    m_latest_trans_gci(0)
 {
   DBUG_ENTER("Ndb_cluster_connection");
   DBUG_PRINT("enter",("Ndb_cluster_connection this=0x%x", this));
 
+  if (!m_event_add_drop_mutex)
+    m_event_add_drop_mutex= NdbMutex_Create();
+
   g_eventLogger.createConsoleHandler();
   g_eventLogger.setCategory("NdbApi");
   g_eventLogger.enable(Logger::LL_ON, Logger::LL_ERROR);
@@ -301,6 +303,33 @@ Ndb_cluster_connection_impl::Ndb_cluster_connection_impl(const char *
   }
   m_transporter_facade= new TransporterFacade();
   
+  NdbMutex_Lock(g_ndb_connection_mutex);
+  if(g_ndb_connection_count++ == 0){
+    NdbDictionary::Column::FRAGMENT= 
+      NdbColumnImpl::create_pseudo("NDB$FRAGMENT");
+    NdbDictionary::Column::FRAGMENT_FIXED_MEMORY= 
+      NdbColumnImpl::create_pseudo("NDB$FRAGMENT_FIXED_MEMORY");
+    NdbDictionary::Column::FRAGMENT_VARSIZED_MEMORY= 
+      NdbColumnImpl::create_pseudo("NDB$FRAGMENT_VARSIZED_MEMORY");
+    NdbDictionary::Column::ROW_COUNT= 
+      NdbColumnImpl::create_pseudo("NDB$ROW_COUNT");
+    NdbDictionary::Column::COMMIT_COUNT= 
+      NdbColumnImpl::create_pseudo("NDB$COMMIT_COUNT");
+    NdbDictionary::Column::ROW_SIZE=
+      NdbColumnImpl::create_pseudo("NDB$ROW_SIZE");
+    NdbDictionary::Column::RANGE_NO= 
+      NdbColumnImpl::create_pseudo("NDB$RANGE_NO");
+    NdbDictionary::Column::DISK_REF= 
+      NdbColumnImpl::create_pseudo("NDB$DISK_REF");
+    NdbDictionary::Column::RECORDS_IN_RANGE= 
+      NdbColumnImpl::create_pseudo("NDB$RECORDS_IN_RANGE");
+    NdbDictionary::Column::ROWID= 
+      NdbColumnImpl::create_pseudo("NDB$ROWID");
+    NdbDictionary::Column::ROW_GCI= 
+      NdbColumnImpl::create_pseudo("NDB$ROW_GCI");
+  }
+  NdbMutex_Unlock(g_ndb_connection_mutex);
+
   DBUG_VOID_RETURN;
 }
 
@@ -314,7 +343,7 @@ Ndb_cluster_connection_impl::~Ndb_cluster_connection_impl()
   if (m_connect_thread)
   {
     void *status;
-    g_run_connect_thread= 0;
+    m_run_connect_thread= 0;
     NdbThread_WaitFor(m_connect_thread, &status);
     NdbThread_Destroy(&m_connect_thread);
     m_connect_thread= 0;
@@ -339,6 +368,36 @@ Ndb_cluster_connection_impl::~Ndb_cluster_connection_impl()
   if (m_name)
     free(m_name);
 
+  NdbMutex_Lock(g_ndb_connection_mutex);
+  if(--g_ndb_connection_count == 0){
+    delete NdbDictionary::Column::FRAGMENT; 
+    delete NdbDictionary::Column::FRAGMENT_FIXED_MEMORY;
+    delete NdbDictionary::Column::FRAGMENT_VARSIZED_MEMORY;
+    delete NdbDictionary::Column::ROW_COUNT;
+    delete NdbDictionary::Column::COMMIT_COUNT;
+    delete NdbDictionary::Column::ROW_SIZE;
+    delete NdbDictionary::Column::RANGE_NO;
+    delete NdbDictionary::Column::DISK_REF;
+    delete NdbDictionary::Column::RECORDS_IN_RANGE;
+    delete NdbDictionary::Column::ROWID;
+    delete NdbDictionary::Column::ROW_GCI;
+    NdbDictionary::Column::FRAGMENT= 0;
+    NdbDictionary::Column::FRAGMENT_FIXED_MEMORY= 0;
+    NdbDictionary::Column::FRAGMENT_VARSIZED_MEMORY= 0;
+    NdbDictionary::Column::ROW_COUNT= 0;
+    NdbDictionary::Column::COMMIT_COUNT= 0;
+    NdbDictionary::Column::ROW_SIZE= 0;
+    NdbDictionary::Column::RANGE_NO= 0;
+    NdbDictionary::Column::DISK_REF= 0;
+    NdbDictionary::Column::RECORDS_IN_RANGE= 0;
+    NdbDictionary::Column::ROWID= 0;
+    NdbDictionary::Column::ROW_GCI= 0;
+  }
+  NdbMutex_Unlock(g_ndb_connection_mutex);
+
+  if (m_event_add_drop_mutex)
+    NdbMutex_Destroy(m_event_add_drop_mutex);
+
   DBUG_VOID_RETURN;
 }
 
@@ -576,17 +635,23 @@ void Ndb_cluster_connection_impl::connect_thread()
     if (r == -1) {
       printf("Ndb_cluster_connection::connect_thread error\n");
       DBUG_ASSERT(false);
-      g_run_connect_thread= 0;
+      m_run_connect_thread= 0;
     } else {
       // Wait before making a new connect attempt
       NdbSleep_SecSleep(1);
     }
-  } while (g_run_connect_thread);
+  } while (m_run_connect_thread);
   if (m_connect_callback)
     (*m_connect_callback)();
   DBUG_VOID_RETURN;
 }
 
+Uint64 *
+Ndb_cluster_connection::get_latest_trans_gci()
+{
+  m_impl.get_latest_trans_gci(); 
+} 
+
 void
 Ndb_cluster_connection::init_get_next_node(Ndb_cluster_connection_node_iter &iter)
 {
diff --git a/storage/ndb/src/ndbapi/ndb_cluster_connection_impl.hpp b/storage/ndb/src/ndbapi/ndb_cluster_connection_impl.hpp
index 6f0df0403d9..5b350dca7ba 100644
--- a/storage/ndb/src/ndbapi/ndb_cluster_connection_impl.hpp
+++ b/storage/ndb/src/ndbapi/ndb_cluster_connection_impl.hpp
@@ -20,6 +20,10 @@
 
 #include <ndb_cluster_connection.hpp>
 #include <Vector.hpp>
+#include <NdbMutex.h>
+
+extern NdbMutex *g_ndb_connection_mutex;
+static int g_ndb_connection_count = 0;
 
 class TransporterFacade;
 class ConfigRetriever;
@@ -41,6 +45,9 @@ class Ndb_cluster_connection_impl : public Ndb_cluster_connection
   Uint32 get_next_node(Ndb_cluster_connection_node_iter &iter);
 
   inline unsigned get_connect_count() const;
+public:
+  inline Uint64 *get_latest_trans_gci() { return &m_latest_trans_gci; }
+
 private:
   friend class Ndb;
   friend class NdbImpl;
@@ -72,6 +79,9 @@ private:
 
   int m_optimized_node_selection;
   char *m_name;
+  int m_run_connect_thread;
+  NdbMutex *m_event_add_drop_mutex;
+  Uint64 m_latest_trans_gci;
 };
 
 #endif