ndb dd -

  fix bug in LCP + extent alloc

storage/ndb/src/kernel/blocks/dbtup/DbtupDiskAlloc.cpp

@@ -350,11 +350,14 @@ Dbtup::disk_page_prealloc(Signal* signal,
       LocalDLList<Extent_info> list(c_extent_pool, alloc.m_free_extents[pos]);
       list.first(ext);
       while((pageBits= tsman.alloc_page_from_extent(&ext.p->m_key, bits)) < 0)
-	if(!list.next(ext) || ++cnt < 10)
+	if(!list.next(ext) || ++cnt == 10)
 	  break;
+      ndbout_c("cnt: %d", cnt);
       if (cnt == 10 || ext.isNull())
 	goto alloc;
       list.remove(ext);
+      alloc.m_curr_extent_info_ptr_i= ext.i;
+      ext.p->m_free_matrix_pos= RNIL;
     }
     else
     {
@@ -390,18 +393,19 @@ Dbtup::disk_page_prealloc(Signal* signal,
       LocalSLList<Extent_info, Extent_list_t> 
 	list1(c_extent_pool, alloc.m_extent_list);
       list1.add(ext);
-    }
-    alloc.m_curr_extent_info_ptr_i= ext.i;
-    ext.p->m_free_matrix_pos= RNIL;
-    pageBits= tsman.alloc_page_from_extent(&ext.p->m_key, bits);
+
+      alloc.m_curr_extent_info_ptr_i= ext.i;
+      ext.p->m_free_matrix_pos= RNIL;
+      pageBits= tsman.alloc_page_from_extent(&ext.p->m_key, bits);
 #ifdef VM_TRACE
-    ddassert(pageBits >= 0);
+      ddassert(pageBits >= 0);
 #else
-    if (unlikely(pageBits < 0))
-    {
-      return -AllocExtentReq::NoExtentAvailable;
-    }
+      if (unlikely(pageBits < 0))
+      {
+	return -AllocExtentReq::NoExtentAvailable;
+      }
 #endif
+    }
   }
   
   /**

storage/ndb/src/kernel/blocks/pgman.cpp

@@ -40,10 +40,11 @@
 #define dbg(x)
 #endif
 
+static bool g_dbg_lcp = false;
 #if 1
 #define DBG_LCP(x)
 #else
-#define DBG_LCP(x) ndbout << x
+#define DBG_LCP(x) if(g_dbg_lcp) ndbout << x
 #endif
 
 Pgman::Pgman(const Configuration & conf) :
@@ -1156,15 +1157,25 @@ Pgman::process_lcp(Signal* signal)
   // start or re-start from beginning of current hash bucket
   if (m_lcp_curr_bucket != ~(Uint32)0)
   {
+    DBG_LCP(" PROCESS LCP m_lcp_curr_bucket" 
+	    << m_lcp_curr_bucket << endl);
+    
     Page_hashlist::Iterator iter;
     pl_hash.next(m_lcp_curr_bucket, iter);
-
-    while (iter.curr.i != RNIL && --max_count > 0)
+    Uint32 loop = 0;
+    while (iter.curr.i != RNIL && 
+	   m_lcp_outstanding < max_count &&
+	   (loop ++ < 32 || iter.bucket == m_lcp_curr_bucket))
     {
       Ptr<Page_entry>& ptr = iter.curr;
       Uint16 state = ptr.p->m_state;
-
-      DBG_LCP("PROCESS LCP: " << ptr);
+      
+      DBG_LCP("LCP " 
+	      << " m_lcp_outstanding: " << m_lcp_outstanding
+	      << " max_count: " << max_count
+	      << " loop: " << loop 
+	      << " iter.curr.i: " << iter.curr.i
+	      << " " << ptr);
       
       if (ptr.p->m_last_lcp < m_last_lcp &&
           (state & Page_entry::DIRTY))
@@ -1214,6 +1225,10 @@ Pgman::process_lcp(Signal* signal)
         ptr.p->m_last_lcp = m_last_lcp;
         m_lcp_outstanding++;
       }
+      else
+      {
+	DBG_LCP(" NOT DIRTY" << endl);
+      }	
       pl_hash.next(iter);
     }
 
@@ -2236,6 +2251,36 @@ Pgman::execDUMP_STATE_ORD(Signal* signal)
     ndbout << "Only in VM_TRACE builds" << endl;
 #endif
   }
+
+  if (signal->theData[0] == 11004)
+  {
+    ndbout << "Dump LCP bucket m_lcp_outstanding: %d", m_lcp_outstanding;
+    if (m_lcp_curr_bucket != ~(Uint32)0)
+    {
+      Page_hashlist::Iterator iter;
+      pl_hash.next(m_lcp_curr_bucket, iter);
+      
+      ndbout_c(" %d", m_lcp_curr_bucket);
+
+      while (iter.curr.i != RNIL && iter.bucket == m_lcp_curr_bucket)
+      {
+	Ptr<Page_entry>& ptr = iter.curr;
+	ndbout << ptr << endl;
+	pl_hash.next(iter);
+      }
+
+      ndbout_c("-- done");
+    }
+    else
+    {
+      ndbout_c(" == ~0");
+    }
+  }
+
+  if (signal->theData[0] == 11005)
+  {
+    g_dbg_lcp = ~g_dbg_lcp;
+  }
 }
 
 // page cache client

storage/ndb/src/kernel/blocks/tsman.cpp

@@ -30,6 +30,7 @@
 #include <signaldata/GetTabInfo.hpp>
 #include <dbtup/Dbtup.hpp>
 
+#define JONAS 0
 
 Tsman::Tsman(const Configuration & conf, class Pgman* pg, class Lgman* lg) :
   SimulatedBlock(TSMAN, conf),
@@ -1725,8 +1726,9 @@ Tsman::unmap_page(Signal* signal, Local_key *key)
     unsigned bit = 
       (header->get_free_bits(page_no_in_extent) & ((1 << (SZ - 1)) - 1));
     header->update_free_bits(page_no_in_extent, bit);
-    ndbout_c("toggle page: (%d, %d, %d) from %x to %x", 
-	     key->m_page_no, extent, page_no_in_extent, old, bit);
+    if (JONAS)
+      ndbout_c("toggle page: (%d, %d, %d) from %x to %x", 
+	       key->m_page_no, extent, page_no_in_extent, old, bit);
     return 0;
   }
   
@@ -1842,8 +1844,9 @@ Tsman::execALLOC_PAGE_REQ(Signal* signal)
   return;
   
 found:
-  ndbout_c("alloc page: (%d, %d, %d)", 
-	   data_off + extent * size + page_no, per_page + extent, page_no);
+  if (JONAS)
+    ndbout_c("alloc page: (%d, %d, %d)", 
+	     data_off + extent * size + page_no, per_page + extent, page_no);
   src_bits |= (1 << (SZ - 1)); // high unlogged, allocated bit
   header->update_free_bits(page_no, src_bits);
   rep->bits= src_bits & ((1 << (SZ - 1)) - 1);