bk commit into 5.1 tree (jonas:1.2117) BUG#27005

[jonas]

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ChangeSet@stripped, 2007-03-14 14:51:31+01:00, jonas@stripped +1 -0
  ndb - bug#27005 (wl2325-5.0)
      Handle API failure during resend
      API failure could cause release of table object, which will make resend crash
        when dereferencing table object
      
      Solution, use table_id+hash+schemaversion instead of *raw* pointer in resend

  storage/ndb/src/kernel/blocks/suma/Suma.cpp@stripped, 2007-03-14 14:51:30+01:00,
jonas@stripped +40 -23
    Handle API failure during resend
    API failure could cause release of table object, which will make resend crash
      when dereferencing table object
    
    Solution, use table_id+hash+schemaversion instead of *raw* pointer in resend

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	jonas
# Host:	perch.ndb.mysql.com
# Root:	/home/jonas/src/drop5

--- 1.34/storage/ndb/src/kernel/blocks/suma/Suma.cpp	2007-03-14 14:51:34 +01:00
+++ 1.35/storage/ndb/src/kernel/blocks/suma/Suma.cpp	2007-03-14 14:51:34 +01:00
@@ -708,6 +708,17 @@
     Restart.resetRestart(signal);
   }
 
+  if (ERROR_INSERTED(13032))
+  {
+    Uint32 node = c_subscriber_nodes.find(0);
+    if (node != NodeBitmask::NotFound)
+    {
+      ndbout_c("Inserting API_FAILREQ node: %u", node);
+      signal->theData[0] = node;
+      EXECUTE_DIRECT(QMGR, GSN_API_FAILREQ, signal, 1);
+    }
+  }
+  
   signal->theData[0] = SumaContinueB::RESEND_BUCKET;
 
   NdbNodeBitmask tmp;
@@ -3273,6 +3284,9 @@
   f_bufferLock = 0;
   b_bufferLock = 0;
 
+  ndbrequire(tabPtr.p = c_tablePool.getPtr(tabPtr.i));
+  Uint32 tableId = tabPtr.p->m_tableId;
+
   Uint32 bucket= hashValue % c_no_of_buckets;
   m_max_seen_gci = (gci > m_max_seen_gci ? gci : m_max_seen_gci);
   if(m_active_buckets.get(bucket) || 
@@ -3289,11 +3303,9 @@
     /**
      * Signal to subscriber(s)
      */
-    ndbrequire(tabPtr.p = c_tablePool.getPtr(tabPtr.i));
-    
     SubTableData * data = (SubTableData*)signal->getDataPtrSend();//trg;
     data->gci            = gci;
-    data->tableId        = tabPtr.p->m_tableId;
+    data->tableId        = tableId;
     data->operation      = event;
     data->logType        = 0;
     
@@ -3313,10 +3325,11 @@
   else 
   {
     Uint32* dst;
-    Uint32 sz = f_trigBufferSize + b_trigBufferSize + 2;
+    Uint32 sz = f_trigBufferSize + b_trigBufferSize + 3;
     if((dst = get_buffer_ptr(signal, bucket, gci, sz)))
     {
-      * dst++ = tabPtr.i;
+      * dst++ = tableId;
+      * dst++ = tabPtr.p->m_schemaVersion;
       * dst++ = (event << 16) | f_trigBufferSize;
       memcpy(dst, f_buffer, f_trigBufferSize << 2);
       dst += f_trigBufferSize;
@@ -4770,38 +4783,42 @@
     {
       g_cnt++;
       Uint32 table = * src++ ;
+      Uint32 schemaversion = * src ++;
       Uint32 event = * src >> 16;
       Uint32 sz_1 = (* src ++) & 0xFFFF;
 
-      ndbassert(sz - 2 >= sz_1);
+      ndbassert(sz - 3 >= sz_1);
       
       LinearSectionPtr ptr[3];
       const Uint32 nptr= reformat(signal, ptr, 
 				  src, sz_1, 
-				  src + sz_1, sz - 2 - sz_1);
+				  src + sz_1, sz - 3 - sz_1);
       
       /**
        * Signal to subscriber(s)
        */
       Ptr<Table> tabPtr;
-      ndbrequire(tabPtr.p = c_tablePool.getPtr(table));
-      
-      SubTableData * data = (SubTableData*)signal->getDataPtrSend();//trg;
-      data->gci            = last_gci;
-      data->tableId        = tabPtr.p->m_tableId;
-      data->operation      = event;
-      data->logType        = 0;
-      
+      if (c_tables.find(tabPtr, table) && 
+	  tabPtr.p->m_schemaVersion == schemaversion)
       {
-	LocalDLList<Subscriber> list(c_subscriberPool,tabPtr.p->c_subscribers);
-	SubscriberPtr subbPtr;
-	for(list.first(subbPtr); !subbPtr.isNull(); list.next(subbPtr))
+	SubTableData * data = (SubTableData*)signal->getDataPtrSend();//trg;
+	data->gci            = last_gci;
+	data->tableId        = table;
+	data->operation      = event;
+	data->logType        = 0;
+	
 	{
-	  DBUG_PRINT("info",("GSN_SUB_TABLE_DATA to node %d",
-			     refToNode(subbPtr.p->m_senderRef)));
-	  data->senderData = subbPtr.p->m_senderData;
-	  sendSignal(subbPtr.p->m_senderRef, GSN_SUB_TABLE_DATA, signal,
-		     SubTableData::SignalLength, JBB, ptr, nptr);
+	  LocalDLList<Subscriber> list(c_subscriberPool,
+				       tabPtr.p->c_subscribers);
+	  SubscriberPtr subbPtr;
+	  for(list.first(subbPtr); !subbPtr.isNull(); list.next(subbPtr))
+	  {
+	    DBUG_PRINT("info",("GSN_SUB_TABLE_DATA to node %d",
+			       refToNode(subbPtr.p->m_senderRef)));
+	    data->senderData = subbPtr.p->m_senderData;
+	    sendSignal(subbPtr.p->m_senderRef, GSN_SUB_TABLE_DATA, signal,
+		       SubTableData::SignalLength, JBB, ptr, nptr);
+	  }
 	}
       }
     }