ndb - bug#23203

  1) Handle not started nodes in dump 1000 (check for division by 0)
  2) Make sure to init variables in constructor


ndb/src/common/debugger/EventLogger.cpp:
  Handle not started nodes
ndb/src/kernel/blocks/dbacc/DbaccInit.cpp:
  Init variables in constructor
ndb/src/kernel/blocks/dbacc/DbaccMain.cpp:
  Handle not started nodes
ndb/src/kernel/blocks/dbtup/DbtupGen.cpp:
  Init variables in constructor
  Handle not started nodes

ndb/src/common/debugger/EventLogger.cpp

@@ -647,8 +647,8 @@ void getTextMemoryUsage(QQQQ) {
   const int used = theData[3];
   const int total = theData[4];
   const int block = theData[5];
-  const int percent = (used*100)/total;
-    
+  const int percent = total ? (used*100)/total : 0;
+  
   BaseString::snprintf(m_text, m_text_len,
 		       "%s usage %s %d%s(%d %dK pages of total %d)",
 		       (block==DBACC ? "Index" : (block == DBTUP ?"Data":"<unknown>")),

ndb/src/kernel/blocks/dbacc/DbaccInit.cpp

@@ -53,6 +53,7 @@ void Dbacc::initData()
   tabrec = 0;
   undopage = 0;
 
+  cnoOfAllocatedPages = cpagesize = 0;
   // Records with constant sizes
 }//Dbacc::initData()
 

ndb/src/kernel/blocks/dbacc/DbaccMain.cpp

@@ -177,7 +177,7 @@ void Dbacc::execCONTINUEB(Signal* signal)
   case ZREPORT_MEMORY_USAGE:{
     jam();
     static int c_currentMemUsed = 0;
-    int now = (cnoOfAllocatedPages * 100)/cpagesize;
+    int now = cpagesize ? (cnoOfAllocatedPages * 100)/cpagesize : 0;
     const int thresholds[] = { 99, 90, 80, 0};
     
     Uint32 i = 0;

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

@@ -142,6 +142,7 @@ Dbtup::Dbtup(const class Configuration & conf)
   tablerec = 0;  
   tableDescriptor = 0;  
   undoPage = 0;
+  cnoOfPage = cnoOfAllocatedPages = 0;
 }//Dbtup::Dbtup()
 
 Dbtup::~Dbtup() 
@@ -526,7 +527,7 @@ void Dbtup::execCONTINUEB(Signal* signal)
   case ZREPORT_MEMORY_USAGE:{
     ljam();
     static int c_currentMemUsed = 0;
-    int now = (cnoOfAllocatedPages * 100)/cnoOfPage;
+    int now = cnoOfPage ? (cnoOfAllocatedPages * 100)/cnoOfPage : 0;
     const int thresholds[] = { 100, 90, 80, 0 };
     
     Uint32 i = 0;