/* Producer thread */ int runV2MultiWait_Producer(NDBT_Context* ctx, NDBT_Step* step, int thd_id, int nthreads) { int records = ctx->getNumRecords(); HugoOperations hugoOps(*ctx->getTab()); /* For three threads (2 producers + 1 consumer) we loop 0-7. producer 0 is slow if (loop & 1) producer 1 is slow if (loop & 2) consumer is slow if (loop & 4) */ for (int loop = 0; loop < V2_NLOOPS; loop++) { ctx->getPropertyWait("LOOP", loop+1); bool slow = loop & (thd_id+1); for (int j=0; j < records; j++) { if(j % nthreads == thd_id) { Ndb* ndb = global_ndb_pool->getNdb(); NdbTransaction* trans = ndb->startTransaction(); check(trans != NULL, (*ndb)); ndb->setCustomData(trans); NdbOperation* readOp = trans->getNdbOperation(ctx->getTab()); check(readOp != NULL, (*trans)); check(readOp->readTuple() == 0, (*readOp)); check(hugoOps.equalForRow(readOp, j) == 0, hugoOps); /* Read all other cols */ for (int k=0; k < ctx->getTab()->getNoOfColumns(); k++) { check(readOp->getValue(ctx->getTab()->getColumn(k)) != NULL, (*readOp)); } trans->executeAsynchPrepare(NdbTransaction::Commit, NULL, NULL, NdbOperation::AbortOnError); ndb->sendPreparedTransactions(); global_poll_group->push(ndb); if(slow) { int tm = myRandom48(3) * myRandom48(3); if(tm) NdbSleep_MilliSleep(tm); } } } } return NDBT_OK; }
int runPkReadMultiBasic(NDBT_Context* ctx, NDBT_Step* step){ int loops = ctx->getNumLoops(); int records = ctx->getNumRecords(); const int MAX_NDBS = 200; Ndb* pNdb = GETNDB(step); Ndb_cluster_connection* conn = &pNdb->get_ndb_cluster_connection(); int i = 0; HugoOperations hugoOps(*ctx->getTab()); Ndb* ndbObjs[ MAX_NDBS ]; NdbTransaction* transArray[ MAX_NDBS ]; Ndb ** ready_ndbs; for (int j=0; j < MAX_NDBS; j++) { Ndb* ndb = new Ndb(conn); check(ndb->init() == 0, (*ndb)); ndbObjs[ j ] = ndb; } while (i<loops) { ndbout << "Loop : " << i << ": "; int recordsLeft = records; do { /* Define and execute Pk read requests on * different Ndb objects */ int ndbcnt = 0; int pollcnt = 0; int lumpsize = 1 + myRandom48(MIN(recordsLeft, MAX_NDBS)); while(lumpsize && recordsLeft && ndbcnt < MAX_NDBS) { Ndb* ndb = ndbObjs[ ndbcnt ]; NdbTransaction* trans = ndb->startTransaction(); check(trans != NULL, (*ndb)); NdbOperation* readOp = trans->getNdbOperation(ctx->getTab()); check(readOp != NULL, (*trans)); check(readOp->readTuple() == 0, (*readOp)); check(hugoOps.equalForRow(readOp, recordsLeft) == 0, hugoOps); /* Read all other cols */ for (int k=0; k < ctx->getTab()->getNoOfColumns(); k++) { check(readOp->getValue(ctx->getTab()->getColumn(k)) != NULL, (*readOp)); } /* Now send em off */ trans->executeAsynchPrepare(NdbTransaction::Commit, NULL, NULL, NdbOperation::AbortOnError); ndb->sendPreparedTransactions(); transArray[ndbcnt] = trans; global_poll_group->addNdb(ndb); ndbcnt++; pollcnt++; recordsLeft--; lumpsize--; }; /* Ok, now wait for the Ndbs to complete */ while (pollcnt) { /* Occasionally check with no timeout */ Uint32 timeout_millis = myRandom48(2)?10000:0; int count = global_poll_group->wait(ready_ndbs, timeout_millis); if (count > 0) { for (int y=0; y < count; y++) { Ndb *ndb = ready_ndbs[y]; check(ndb->pollNdb(0, 1) != 0, (*ndb)); } pollcnt -= count; } } /* Ok, now close the transactions */ for (int t=0; t < ndbcnt; t++) { transArray[t]->close(); } } while (recordsLeft); i++; } for (int j=0; j < MAX_NDBS; j++) { delete ndbObjs[ j ]; } return NDBT_OK; }