Bug #12594:

Added debug info to all log page headers

ndb/src/kernel/blocks/dblqh/Dblqh.hpp

@@ -86,6 +86,17 @@
 #define ZCURR_PAGE_INDEX 8
 #define ZLAST_LOG_PREP_REF 10
 #define ZPOS_DIRTY 11
+/* A number of debug items written in the page header of all log files */
+#define ZPOS_LOG_TIMER 12
+#define ZPOS_PAGE_I 13
+#define ZPOS_PLACE_WRITTEN_FROM 14
+#define ZPOS_PAGE_NO 15
+#define ZPOS_FILE_NO 16
+#define ZPOS_WORD_WRITTEN 17
+#define ZPOS_IN_WRITING 18
+#define ZPOS_PREV_PAGE_NO 19
+#define ZPOS_IN_FREE_LIST 20
+
 /* ------------------------------------------------------------------------- */
 /*       CONSTANTS FOR THE VARIOUS REPLICA AND NODE TYPES.                   */
 /* ------------------------------------------------------------------------- */
@@ -2294,7 +2305,8 @@ private:
   void writeFileDescriptor(Signal* signal);
   void writeFileHeaderOpen(Signal* signal, Uint32 type);
   void writeInitMbyte(Signal* signal);
-  void writeSinglePage(Signal* signal, Uint32 pageNo, Uint32 wordWritten);
+  void writeSinglePage(Signal* signal, Uint32 pageNo,
+                       Uint32 wordWritten, Uint32 place);
   void buildLinkedLogPageList(Signal* signal);
   void changeMbyte(Signal* signal);
   Uint32 checkIfExecLog(Signal* signal);
@@ -2303,7 +2315,7 @@ private:
   void checkScanTcCompleted(Signal* signal);
   void checkSrCompleted(Signal* signal);
   void closeFile(Signal* signal, LogFileRecordPtr logFilePtr);
-  void completedLogPage(Signal* signal, Uint32 clpType);
+  void completedLogPage(Signal* signal, Uint32 clpType, Uint32 place);
   void deleteFragrec(Uint32 fragId);
   void deleteTransidHash(Signal* signal);
   void findLogfile(Signal* signal,
@@ -2399,7 +2411,9 @@ private:
   void writeAbortLog(Signal* signal);
   void writeCommitLog(Signal* signal, LogPartRecordPtr regLogPartPtr);
   void writeCompletedGciLog(Signal* signal);
-  void writeDirty(Signal* signal);
+  void writeDbgInfoPageHeader(LogPageRecordPtr logPagePtr, Uint32 place,
+                              Uint32 pageNo, Uint32 wordWritten);
+  void writeDirty(Signal* signal, Uint32 place);
   void writeKey(Signal* signal);
   void writeLogHeader(Signal* signal);
   void writeLogWord(Signal* signal, Uint32 data);

ndb/src/kernel/blocks/dblqh/redoLogReader/records.hpp

@@ -147,6 +147,17 @@ protected:
   Uint32 m_old_prepare_file_number;
   Uint32 m_old_prepare_page_reference;
   Uint32 m_dirty_flag;
+/* Debug info Start */
+  Uint32 m_log_timer;
+  Uint32 m_page_i_value;
+  Uint32 m_place_written_from;
+  Uint32 m_page_no;
+  Uint32 m_file_no;
+  Uint32 m_word_written;
+  Uint32 m_in_writing_flag;
+  Uint32 m_prev_page_no;
+  Uint32 m_in_free_list;
+/* Debug info End */
 };
 
 //----------------------------------------------------------------