Removed 0.5M in unused construct in TRIX

Used proper config param for setting trigger pool size in TUP
Minimum long signal buffer set to 0.5M instead of 1M

ndb/src/common/mgmcommon/ConfigInfo.cpp

@@ -708,7 +708,7 @@ const ConfigInfo::ParamInfo ConfigInfo::m_ParamInfo[] = {
     false,
     ConfigInfo::INT,
     1 * (1024 * 1024),
-    1 * (1024 * 1024),
+    512 * 1024,
     MAX_INT_RNIL},
 
   {

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

@@ -638,6 +638,7 @@ void Dbtup::execREAD_CONFIG_REQ(Signal* signal)
   ndbrequire(!ndb_mgm_get_int_parameter(p, CFG_TUP_PAGE, &tmp));
   Uint64 pages = (tmp * 2048 + (ZWORDS_ON_PAGE - 1))/ (Uint64)ZWORDS_ON_PAGE;
   cnoOfPage = (Uint32)pages;
+  Uint32 noOfTriggers= 0;
   
   ndbrequire(!ndb_mgm_get_int_parameter(p, CFG_TUP_PAGE_RANGE, &tmp));
   initPageRangeSize(tmp);
@@ -647,10 +648,13 @@ void Dbtup::execREAD_CONFIG_REQ(Signal* signal)
   Uint32 noOfStoredProc;
   ndbrequire(!ndb_mgm_get_int_parameter(p, CFG_TUP_STORED_PROC, 
 					&noOfStoredProc));
+  ndbrequire(!ndb_mgm_get_int_parameter(p, CFG_DB_NO_TRIGGERS, 
+					&noOfTriggers));
 
   cnoOfTabDescrRec = (cnoOfTabDescrRec & 0xFFFFFFF0) + 16;
   c_storedProcPool.setSize(noOfStoredProc);
   c_buildIndexPool.setSize(c_noOfBuildIndexRec);
+  c_triggerPool.setSize(noOfTriggers);
 
   initRecords();
   czero = 0;
@@ -725,8 +729,6 @@ void Dbtup::initRecords()
 		sizeof(RestartInfoRecord),
 		cnoOfRestartInfoRec);
 
-  // Trigger data
-  c_triggerPool.setSize(cnoOfTablerec*c_maxTriggersPerTable);
   
   tablerec = (Tablerec*)allocRecord("Tablerec",
 				    sizeof(Tablerec), 

ndb/src/kernel/blocks/trix/Trix.cpp

@@ -47,8 +47,7 @@ Trix::Trix(const Configuration & conf) :
   c_masterTrixRef(0),
   c_noNodesFailed(0),
   c_noActiveNodes(0),
-  c_theSubscriptions(c_theSubscriptionRecPool),
-  c_thePages(c_thePagePool)
+  c_theSubscriptions(c_theSubscriptionRecPool)
 {
   BLOCK_CONSTRUCTOR(Trix);
 
@@ -90,7 +89,6 @@ Trix::Trix(const Configuration & conf) :
   // Allocate pool sizes
   c_theAttrOrderBufferPool.setSize(100);
   c_theSubscriptionRecPool.setSize(100);
-  c_thePagePool.setSize(16);
 
   ArrayList<SubscriptionRecord> subscriptions(c_theSubscriptionRecPool);
   SubscriptionRecPtr subptr;

ndb/src/kernel/blocks/trix/Trix.hpp

@@ -138,19 +138,6 @@ private:
    */  
   ArrayList<SubscriptionRecord> c_theSubscriptions;
 
-  // Linear memory abstraction
-#define TRIX_WORDS_PER_PAGE 8191
-  struct Page32 {
-    Uint32 data[TRIX_WORDS_PER_PAGE];
-    Uint32 nextPool;
-  };
-  typedef Ptr<Page32> Page32Ptr;
-
-  ArrayPool<Page32> c_thePagePool;
-  Array<Page32> c_thePages;
-
-  // Private methods
-
   // System start
   void execSTTOR(Signal* signal);
   void execNDB_STTOR(Signal* signal);