Commit bbcb4a56 authored by unknown's avatar unknown
Browse files

bug#17295 - ndb - error while reading REDO log 

  fix corruption due to page 0, file 0 gets released


ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  Make sure that page 0, file 0 isnt released
parent db4d82ba

ndb/src/kernel/blocks/dblqh/DblqhMain.cpp

+11 −3
Original line number Diff line number Diff line
@@ -14767,7 +14767,9 @@ void Dblqh::execSr(Signal* signal) 
          signal->theData[4] = logFilePtr.p->currentFilepage;

          signal->theData[5] = logFilePtr.p->currentMbyte;

          signal->theData[6] = logPagePtr.p->logPageWord[ZCURR_PAGE_INDEX];

          sendSignal(cownref, GSN_DEBUG_SIG, signal, 7, JBA);

	  signal->theData[7] = ~0;

	  signal->theData[8] = __LINE__;

          sendSignal(cownref, GSN_DEBUG_SIG, signal, 9, JBA);

          return;

        }//if

      }//if
@@ -14833,7 +14835,8 @@ void Dblqh::execSr(Signal* signal) 
      signal->theData[5] = logFilePtr.p->currentFilepage;

      signal->theData[6] = logPagePtr.p->logPageWord[ZCURR_PAGE_INDEX];

      signal->theData[7] = logWord;

      sendSignal(cownref, GSN_DEBUG_SIG, signal, 8, JBA);

      signal->theData[8] = __LINE__;

      sendSignal(cownref, GSN_DEBUG_SIG, signal, 9, JBA);

      return;

      break;

    }//switch
@@ -14862,8 +14865,9 @@ void Dblqh::execDEBUG_SIG(Signal* signal) 








  char buf[100];









  BaseString::snprintf(buf, 100, 









	   "Error while reading REDO log.\n"









	   "Error while reading REDO log. from %d\n"









	   "D=%d, F=%d Mb=%d FP=%d W1=%d W2=%d",









	   signal->theData[8],









	   signal->theData[2], signal->theData[3], signal->theData[4],









	   signal->theData[5], signal->theData[6], signal->theData[7]);
















@@ -15439,6 +15443,10 @@ void Dblqh::readSrFourthZeroLab(Signal* signal)







  // to read a page from file. 









  lfoPtr.p->lfoState = LogFileOperationRecord::WRITE_SR_INVALIDATE_PAGES;

















  /**









   * Make sure we dont release zero page









   */









  seizeLogpage(signal);









  invalidateLogAfterLastGCI(signal);









  return;









}//Dblqh::readSrFourthZeroLab()