int HugoTransactions::scanReadRecords(Ndb* pNdb, const NdbDictionary::Index * pIdx, int records, int abortPercent, int parallelism, NdbOperation::LockMode lm, int scan_flags) { int retryAttempt = 0; int check, a; NdbIndexScanOperation *pOp; while (true){ if (retryAttempt >= m_retryMax){ g_err << "ERROR: has retried this operation " << retryAttempt << " times, failing!" << endl; return NDBT_FAILED; } pTrans = pNdb->startTransaction(); if (pTrans == NULL) { const NdbError err = pNdb->getNdbError(); if (err.status == NdbError::TemporaryError){ ERR(err); NdbSleep_MilliSleep(50); retryAttempt++; continue; } ERR(err); return NDBT_FAILED; } pOp = pTrans->getNdbIndexScanOperation(pIdx->getName(), tab.getName()); if (pOp == NULL) { ERR(pTrans->getNdbError()); closeTransaction(pNdb); return NDBT_FAILED; } if( pOp ->readTuples(lm, scan_flags, parallelism) ) { ERR(pTrans->getNdbError()); closeTransaction(pNdb); return NDBT_FAILED; } check = pOp->interpret_exit_ok(); if( check == -1 ) { ERR(pTrans->getNdbError()); closeTransaction(pNdb); return NDBT_FAILED; } for(a = 0; a<tab.getNoOfColumns(); a++){ if((row.attributeStore(a) = pOp->getValue(tab.getColumn(a)->getName())) == 0) { ERR(pTrans->getNdbError()); closeTransaction(pNdb); return NDBT_FAILED; } } check = pTrans->execute(NoCommit, AbortOnError); if( check == -1 ) { const NdbError err = pTrans->getNdbError(); if (err.status == NdbError::TemporaryError){ ERR(err); closeTransaction(pNdb); NdbSleep_MilliSleep(50); retryAttempt++; continue; } ERR(err); closeTransaction(pNdb); return NDBT_FAILED; } // Abort after 1-100 or 1-records rows int ranVal = rand(); int abortCount = ranVal % (records == 0 ? 100 : records); bool abortTrans = false; if (abort > 0){ // Abort if abortCount is less then abortPercent if (abortCount < abortPercent) abortTrans = true; } int eof; int rows = 0; while((eof = pOp->nextResult(true)) == 0){ rows++; if (calc.verifyRowValues(&row) != 0){ closeTransaction(pNdb); return NDBT_FAILED; } if (abortCount == rows && abortTrans == true){ ndbout << "Scan is aborted" << endl; g_info << "Scan is aborted" << endl; pOp->close(); if( check == -1 ) { ERR(pTrans->getNdbError()); closeTransaction(pNdb); return NDBT_FAILED; } closeTransaction(pNdb); return NDBT_OK; } } if (eof == -1) { const NdbError err = pTrans->getNdbError(); if (err.status == NdbError::TemporaryError){ ERR_INFO(err); closeTransaction(pNdb); NdbSleep_MilliSleep(50); switch (err.code){ case 488: case 245: case 490: // Too many active scans, no limit on number of retry attempts break; default: retryAttempt++; } continue; } ERR(err); closeTransaction(pNdb); return NDBT_FAILED; } closeTransaction(pNdb); g_info << rows << " rows have been read" << endl; if (records != 0 && rows != records){ g_err << "Check expected number of records failed" << endl << " expected=" << records <<", " << endl << " read=" << rows << endl; return NDBT_FAILED; } return NDBT_OK; } return NDBT_FAILED; }