void* ResultCollector::CollectResult(void* arg) {
ResultCollector* Pthis = (ResultCollector*)arg;
Pthis->state_.child_->Open(Pthis->state_.partition_offset_);
BlockStreamBase* block_for_asking;
if (false == Pthis->CreateBlockStream(block_for_asking)) {
assert(false);
return 0;
}
Pthis->block_buffer_->column_header_list_ = Pthis->state_.column_header_;
unsigned long long start = 0;
start = curtick();
while (Pthis->state_.child_->Next(block_for_asking)) {
Pthis->block_buffer_->atomicAppendNewBlock(block_for_asking);
if (false == Pthis->CreateBlockStream(block_for_asking)) {
assert(false);
return 0;
}
}
Pthis->sema_input_complete_.post();
double eclipsed_seconds = getSecond(start);
Pthis->block_buffer_->query_time_ = eclipsed_seconds;
Pthis->block_buffer_->schema_ = Pthis->state_.input_->duplicateSchema();
Pthis->finished_thread_count_++;
return 0;
}
static void test_scan_filter_performance(int value)
{
unsigned long long int start=curtick();
TableDescriptor* table=Catalog::getInstance()->getTable("cj");
LogicalOperator* cj_scan=new LogicalScan(table->getProjectoin(0));
Filter::Condition filter_condition_1;
filter_condition_1.add(table->getAttribute(3),AttributeComparator::GEQ,std::string("10107"));
filter_condition_1.add(table->getAttribute(3),AttributeComparator::L,(void*)&value);
LogicalOperator* filter_1=new Filter(filter_condition_1,cj_scan);
const NodeID collector_node_id=0;
LogicalOperator* root=new LogicalQueryPlanRoot(collector_node_id,filter_1,LogicalQueryPlanRoot::PERFORMANCE);
BlockStreamPerformanceMonitorTop* executable_query_plan=(BlockStreamPerformanceMonitorTop*)root->getIteratorTree(1024*64);
// executable_query_plan->print();
executable_query_plan->open();
while(executable_query_plan->next(0));
executable_query_plan->close();
// ResultSet *result_set=executable_query_plan->getResultSet();
const unsigned long int number_of_tuples=executable_query_plan->getNumberOfTuples();
printf("execution time: %4.4f seconds.\n",getSecond(start));
if(!print_test_name_result(number_of_tuples==26820,"Low selectivity filter")){
printf("\tExpected:26695 actual: %d\n",number_of_tuples);
}
// result_set->~ResultSet();
executable_query_plan->~BlockStreamIteratorBase();
root->~LogicalOperator();
}
static void query_select_sort() {
/*
* select sum(a+1)+count(a),b
* from T
* group by b
*
* notation: p a p s
* */
unsigned long long int start=curtick();
TableDescriptor* table=Environment::getInstance()->getCatalog()->getTable("LINEITEM");
//===========================scan===========================
LogicalOperator* scan=new LogicalScan(table->getProjectoin(0));
//==========================project=========================
vector< vector<ExpressionItem> >expr_list1;
vector<ExpressionItem> expr1;
ExpressionItem ei1_1;
ExpressionItem ei1_2;
ExpressionItem ei1_3;
ei1_1.setVariable("LINEITEM.L_ORDERKEY");
ei1_2.setIntValue("1");
ei1_3.setOperator("+");
expr1.push_back(ei1_1);
expr1.push_back(ei1_2);
expr1.push_back(ei1_3);
expr_list1.push_back(expr1);
LogicalOperator* project1=new LogicalProject(scan,expr_list1);
//==========================project=========================
vector< vector<ExpressionItem> >expr_list2;
ExpressionItem ei21_1;
ei21_1.setVariable("LINEITEM.L_ORDERKEY+1");
vector<ExpressionItem> expr21;
expr21.push_back(ei21_1);
expr_list2.push_back(expr21);
LogicalOperator* project2=new LogicalProject(project1,expr_list2);
//============================sort==========================
vector<LogicalSort::OrderByAttr*> vo;
LogicalSort::OrderByAttr tmp=LogicalSort::OrderByAttr("LINEITEM.L_ORDERKEY+1",0);
vo.push_back(&tmp);
LogicalOperator* sort=new LogicalSort(project1,vo);
//===========================root===========================
LogicalOperator* root=new LogicalQueryPlanRoot(0,sort,LogicalQueryPlanRoot::PRINT);
cout<<"performance is ok!"<<endl;
BlockStreamIteratorBase* physical_iterator_tree=root->getIteratorTree(64*1024);
// physical_iterator_tree->print();
physical_iterator_tree->open();
while(physical_iterator_tree->next(0));
physical_iterator_tree->close();
printf("Q1: execution time: %4.4f second.\n",getSecond(start));
}
unsigned TimeOutReceiver::TimeOutWait(unsigned expected_message_count,unsigned time_out_in_ms){
unsigned long long int start=curtick();
unsigned count(0);
while(count<expected_message_count&&getMilliSecond(start)<time_out_in_ms){
count+=Consume(expected_message_count-count);
}
return count;
}
// TODO(Hanzhang): According to AVOID_CONTENTION_IN_SCAN, we choose the
// strategy. We need finish case(1).
bool PhysicalProjectionScan::Next(SegmentExecStatus* const exec_status,
BlockStreamBase* block) {
RETURN_IF_CANCELLED(exec_status);
unsigned long long total_start = curtick();
if (!block->isIsReference()) {
block->setIsReference(false);
}
#ifdef AVOID_CONTENTION_IN_SCAN
ScanThreadContext* stc = reinterpret_cast<ScanThreadContext*>(GetContext());
if (NULL == stc) {
stc = new ScanThreadContext();
InitContext(stc);
}
if (ExpanderTracker::getInstance()->isExpandedThreadCallBack(
pthread_self())) {
input_dataset_.AtomicPut(stc->assigned_data_);
delete stc;
destorySelfContext();
kPerfInfo->report_instance_performance_in_millibytes();
return false;
}
if (!stc->assigned_data_.empty()) {
ChunkReaderIterator::block_accessor* ba = stc->assigned_data_.front();
stc->assigned_data_.pop_front();
ba->GetBlock(block);
// whether delete InMemeryBlockAccessor::target_block_start_address
// is depend on whether use copy in ba->getBlock(block);
delete ba;
kPerfInfo->processed_one_block();
return true;
} else {
if (input_dataset_.AtomicGet(stc->assigned_data_, Config::scan_batch)) {
// case(1)
return Next(block);
} else {
delete stc;
destorySelfContext();
return false;
}
}
#else
if (ExpanderTracker::getInstance()->isExpandedThreadCallBack(
pthread_self())) {
return false;
}
// perf_info_->processed_one_block();
// case(2)
RETURN_IF_CANCELLED(exec_status);
return partition_reader_iterator_->NextBlock(block);
#endif
}
bool BlockStreamPerformanceMonitorTop::open(const PartitionOffset& partition_offset){
start_=curtick();
state_.child_->open(partition_offset);
block_=BlockStreamBase::createBlock(state_.schema_,state_.block_size_);
tuplecount_=0;
int error;
error=pthread_create(&report_tid_,NULL,report,this);
if(error!=0){
std::cout<<"create threads error!"<<std::endl;
}
return true;
}
bool PerformanceIteratorTop::open(){
state.child->open();
tuple=memalign(cacheline_size,state.schema->getTupleMaxSize());
tuplecount=0;
int error;
error=pthread_create(&report_tid,NULL,report,this);
if(error!=0){
std::cout<<"create threads error!"<<std::endl;
}
start=curtick();
return true;
}
bool BlockStreamNestLoopJoinIterator::open(const PartitionOffset& partition_offset)
{
RegisterExpandedThreadToAllBarriers();
// AtomicPushFreeHtBlockStream(BlockStreamBase::createBlock(state_.input_schema_left,state_.block_size_));
// AtomicPushFreeBlockStream(BlockStreamBase::createBlock(state_.input_schema_right,state_.block_size_));
unsigned long long int timer;
bool winning_thread=false;
if(tryEntryIntoSerializedSection(0))//the first thread of all need to do
{
ExpanderTracker::getInstance()->addNewStageEndpoint(pthread_self(),LocalStageEndPoint(stage_desc,"nest loop build",0));
winning_thread=true;
timer=curtick();
// unsigned output_index=0;
// for(unsigned i=0;i<state_.joinIndex_left.size();i++){
// joinIndex_left_to_output[i]=output_index;
// output_index++;
// }
// for(unsigned i=0;i<state_.payload_left.size();i++){
// payload_left_to_output[i]=output_index;
// output_index++;
// }
// for(unsigned i=0;i<state_.payload_right.size();i++){
// payload_right_to_output[i]=output_index;
// output_index++;
// }
blockbuffer=new DynamicBlockBuffer();
}
state_.child_left->open(partition_offset);
barrierArrive(0);
join_thread_context* jtc=new join_thread_context();
createBlockStream(jtc->block_for_asking_);
while(state_.child_left->next(jtc->block_for_asking_))
{
blockbuffer->atomicAppendNewBlock(jtc->block_for_asking_);
createBlockStream(jtc->block_for_asking_);
}
delete jtc->block_for_asking_;
if(ExpanderTracker::getInstance()->isExpandedThreadCallBack(pthread_self())){
unregisterExpandedThreadToAllBarriers(1);
return true;
}
barrierArrive(1);//??ERROR
// join_thread_context* jtc=new join_thread_context();
jtc->block_for_asking_=BlockStreamBase::createBlock(state_.input_schema_right,state_.block_size_);
jtc->block_stream_iterator_=jtc->block_for_asking_->createIterator();
initContext(jtc);
state_.child_right->open(partition_offset);
return true;
}
static void test_index_filter_performance(int value_high) {
unsigned long long int start = curtick();
vector<IndexScanIterator::query_range> q_range;
q_range.clear();
int value_low = 10107;
// int value_high = 600257;
TableDescriptor* table = Catalog::getInstance()->getTable("cj");
IndexScanIterator::query_range q;
q.value_low = malloc(sizeof(int)); // newmalloc
q.value_low = (void*)(&value_low);
q.comp_low = GEQ;
q.value_high = malloc(sizeof(int)); // newmalloc
q.value_high = (void*)(&value_high);
q.comp_high = L;
q.c_type.type = t_int;
q.c_type.operate = new OperateInt();
q_range.push_back(q);
LogicalOperator* index_scan =
new LogicalIndexScan(table->getProjectoin(0)->getProjectionID(),
table->getAttribute("sec_code"), q_range);
const NodeID collector_node_id = 0;
LogicalOperator* root = new LogicalQueryPlanRoot(
collector_node_id, index_scan, LogicalQueryPlanRoot::PERFORMANCE);
// root->print();
PerformanceMonitor* executable_query_plan =
(PerformanceMonitor*)root->GetPhysicalPlan(1024 * 64);
executable_query_plan->Open();
while (executable_query_plan->Next(0))
;
executable_query_plan->Close();
// ResultSet* result_set = executable_query_plan->getResultSet();
const unsigned long int number_of_tuples =
executable_query_plan->GetNumberOfTuples();
delete executable_query_plan;
root->~LogicalOperator();
// cout << "Sec_code: " << value_low << "\t Result: " << number_of_tuples
//<< endl;
printf("execution time: %4.4f seconds.\n", getSecond(start));
if (!print_test_name_result(number_of_tuples == 26820, "Index Scan")) {
printf("\tIndex Scan sec_code = %d, Expected:%d actual: %d\n", value_low,
26820, number_of_tuples);
}
}
int mainasdfaf234(int argc,const char** argv){
std::vector<column_type> column_list,column_list_;
column_list.push_back(column_type(t_int));
Schema* input=new SchemaFix(column_list);
BlockStreamSingleColumnScan::State bsscs_state("/home/claims/temp/Uniform_0_99.column",input);
PhysicalOperatorBase* bsscs1=new BlockStreamSingleColumnScan(bsscs_state);
PhysicalOperatorBase* bsscs2=new BlockStreamSingleColumnScan(bsscs_state);
int f=atoi(argv[2]);
AttributeComparator fA(column_type(t_int),Comparator::L,0,&f);
std::vector<AttributeComparator> ComparatorList;
ComparatorList.push_back(fA);
BlockStreamFilter::State bsf_state(input,bsscs1,ComparatorList,4096);
PhysicalOperatorBase* bsf=new BlockStreamFilter(bsf_state);
//
BlockStreamBase *block=new BlockStreamFix(4096,4);
int choice=0;
while(choice==0){
// bsf->open();
bsf->Open();
unsigned long long int start=curtick();
while(bsf->Next(block)){
block->setEmpty();
}
printf("Time=%f Throughput=%f.\n",getSecond(start),1024/getSecond(start));
bsf->Close();
printf("Continue(0) or Not(1) ?\n");
scanf("%d",&choice);
}
}
bool PhysicalProjectionScan::Open(SegmentExecStatus* const exec_status,
const PartitionOffset& kPartitionOffset) {
RETURN_IF_CANCELLED(exec_status);
RegisterExpandedThreadToAllBarriers();
if (TryEntryIntoSerializedSection()) {
/* this is the first expanded thread*/
PartitionStorage* partition_handle_;
if (NULL ==
(partition_handle_ = BlockManager::getInstance()->GetPartitionHandle(
PartitionID(state_.projection_id_, kPartitionOffset)))) {
LOG(ERROR) << PartitionID(state_.projection_id_, kPartitionOffset)
.getName()
.c_str() << CStrError(rNoPartitionIdScan) << std::endl;
SetReturnStatus(false);
} else {
partition_reader_iterator_ =
partition_handle_->CreateAtomicReaderIterator();
SetReturnStatus(true);
}
#ifdef AVOID_CONTENTION_IN_SCAN
unsigned long long start = curtick();
ChunkReaderIterator* chunk_reader_it;
ChunkReaderIterator::block_accessor* ba;
while (chunk_reader_it = partition_reader_iterator_->NextChunk()) {
while (chunk_reader_it->GetNextBlockAccessor(ba)) {
ba->GetBlockSize();
input_dataset_.input_data_blocks_.push_back(ba);
}
}
#endif
ExpanderTracker::getInstance()->addNewStageEndpoint(
pthread_self(), LocalStageEndPoint(stage_src, "Scan", 0));
perf_info_ =
ExpanderTracker::getInstance()->getPerformanceInfo(pthread_self());
perf_info_->initialize();
}
BarrierArrive();
return GetReturnStatus();
}
bool ResultCollector::Open(const PartitionOffset& part_offset) {
state_.partition_offset_ = part_offset;
if (sema_open_.try_wait()) {
block_buffer_ = new ResultSet();
block_buffer_iterator_ = block_buffer_->createIterator();
open_finished_ = true;
} else {
while (!open_finished_) {
usleep(1);
}
}
registered_thread_count_++;
if (true == g_thread_pool_used) {
Environment::getInstance()->getThreadPool()->add_task(CollectResult, this);
} else {
pthread_t tid;
pthread_create(&tid, NULL, CollectResult, this);
}
unsigned long long int start = curtick();
sema_input_complete_.wait();
block_buffer_->query_time_ = getSecond(start);
return true;
}
bool ExpandableBlockStreamExchangeEpoll::open(const PartitionOffset& partition_offset)
{
unsigned long long int start = curtick();
RegisterExpandedThreadToAllBarriers();
if (tryEntryIntoSerializedSection())
{
debug_winner_thread++;
nexhausted_lowers=0;
this->partition_offset=partition_offset;
nlowers=state.lower_id_list_.size();
for (unsigned i = 0; i < nlowers; i++)
{
debug_received_block[i] = 0;
}
socket_fd_lower_list = new int[nlowers];
//init -1 ---Yu
for (int i = 0; i < nlowers; ++i) {
socket_fd_lower_list[i] = -1;
}
buffer=new BlockStreamBuffer(state.block_size_,BUFFER_SIZE_IN_EXCHANGE,state.schema_);
ExpanderTracker::getInstance()->addNewStageEndpoint(pthread_self(),LocalStageEndPoint(stage_src,"Exchange",buffer));
received_block_stream_=BlockStreamBase::createBlock(state.schema_,state.block_size_);
block_for_socket_ = new BlockContainer*[nlowers];
for (unsigned i = 0; i < nlowers; i++)
{
block_for_socket_[i] = new BlockContainer(received_block_stream_->getSerializedBlockSize());
}
if (PrepareTheSocket() == false)
return false;
if (SetSocketNonBlocking(sock_fd) == false)
{
return false;
}
logging_->log("[%ld,%d] Open: nexhausted lowers=%d, nlower=%d", state.exchange_id_, partition_offset, nexhausted_lowers, nlowers);
if (RegisterExchange() == false)
{
logging_->elog("Register Exchange with ID=%d fails!", state.exchange_id_);
}
if(isMaster()){
/* According to a bug reported by dsc, the master exchangeupper should check whether other
* uppers have registered to exchangeTracker. Otherwise, the lower may fail to connect to the
* exchangeTracker of some uppers when the lower nodes receive the exchagnelower, as some uppers
* have not register the exchange_id to the exchangeTracker.
*/
logging_->log("[%ld,%d] Synchronizing....", state.exchange_id_, partition_offset);
checkOtherUpperRegistered();
logging_->log("[%ld,%d] Synchronized!", state.exchange_id_, partition_offset);
logging_->log("[%ld,%d] This exchange is the master one, serialize the iterator subtree to the children...", state.exchange_id_, partition_offset);
if (SerializeAndSendToMulti() == false)
return false;
}
if (CreateReceiverThread() == false)
{
return false;
}
createPerformanceInfo();
}
/* A synchronization barrier, in case of multiple expanded threads*/
barrierArrive();
return true;
}
// receive each one block from all sender
void* ExpandableBlockStreamExchangeEpoll::receiver(void* arg){
ExpandableBlockStreamExchangeEpoll* Pthis=(ExpandableBlockStreamExchangeEpoll*)arg;
struct epoll_event event;
struct epoll_event *events;
int status;
/** create epoll **/
Pthis->epoll_fd_ = epoll_create1(0);
if (Pthis->epoll_fd_ == -1)
{
Pthis->logging_->elog("epoll create error!\n");
return 0;
}
event.data.fd = Pthis->sock_fd;
event.events = EPOLLIN | EPOLLET;
status = epoll_ctl(Pthis->epoll_fd_, EPOLL_CTL_ADD, Pthis->sock_fd, &event);
if (status == -1)
{
Pthis->logging_->elog("epoll ctl error!\n");
return 0;
}
events=(epoll_event*)calloc(Pthis->nlowers,sizeof(epoll_event));
int fd_cur=0;
ticks start=curtick();
std::vector<int> finish_times;//in ms
while(true){
usleep(1);
const int event_count = epoll_wait(Pthis->epoll_fd_, events, Pthis->nlowers, -1);
for (int i = 0; i < event_count; i++)
{
if ((events[i].events & EPOLLERR) || (events[i].events & EPOLLHUP) || (!(events[i].events & EPOLLIN)))
{
if (errno == EINTR)
{
continue;
}
Pthis->logging_->elog("[%ld] epoll error,reason:%s\n", Pthis->state.exchange_id_, strerror(errno));
FileClose(events[i].data.fd);
std::cout << "in " << __FILE__ << ":" << __LINE__;
printf("-----for debug:close fd %d.\n", events[i].data.fd);
continue;
}
else if (Pthis->sock_fd == events[i].data.fd)
{
/* We have a notification on the listening socket, which means one or more incoming connections.*/
while (true)
{
sockaddr in_addr;
socklen_t in_len;
int infd;
char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
in_len = sizeof in_addr;
infd = accept(Pthis->sock_fd, &in_addr, &in_len);
if (infd == -1)
{
if ((errno == EAGAIN) || (errno == EWOULDBLOCK))
{
/* all the incoming connections are processed.*/
break;
}
else
{
Pthis->logging_->elog("accept error! ");
break;
}
}
status=getnameinfo(&in_addr,in_len,hbuf,sizeof(hbuf),sbuf,sizeof(sbuf),NI_NUMERICHOST|NI_NUMERICSERV);
if(status==0){
Pthis->logging_->log("[%ld] Accepted connection on descriptor %d (host=%s, port=%s),id=%d\n",Pthis->state.exchange_id_, infd, hbuf, sbuf,Pthis->state.exchange_id_);
Pthis->lower_ip_array.push_back(hbuf);
Pthis->lower_sock_fd_to_index[infd]=Pthis->lower_ip_array.size()-1;
assert(Pthis->lower_ip_array.size()<=Pthis->state.lower_id_list_.size());
}
/*Make the incoming socket non-blocking and add it to the list of fds to monitor.*/
if (!Pthis->SetSocketNonBlocking(infd))
{
return 0;
}
event.data.fd = infd;
event.events = EPOLLIN | EPOLLET;
status = epoll_ctl(Pthis->epoll_fd_, EPOLL_CTL_ADD, infd, &event);
if (status == -1)
{
Pthis->logging_->elog("epoll_ctl");
return 0;
}
}
continue;
}
else
{
/* We have data on the fd waiting to be read.*/
int done = 0;
while (true)
{
int byte_received;
int socket_fd_index=Pthis->lower_sock_fd_to_index[events[i].data.fd];
byte_received=read(events[i].data.fd,
(char*)Pthis->block_for_socket_[socket_fd_index]->getBlock()+Pthis->block_for_socket_[socket_fd_index]->GetCurSize(),
Pthis->block_for_socket_[socket_fd_index]->GetRestSize());
if(byte_received==-1){
if(errno==EAGAIN){
/*We have read all the data,so go back to the loop.*/
break;
}
Pthis->logging_->elog("read error!\n");
done = 1;
}
else if (byte_received == 0)
{
/* End of file. The remote has closed the connection.*/
done = 1;
break;
}
/* The data is successfully read.*/
Pthis->block_for_socket_[socket_fd_index]->IncreaseActualSize(byte_received);
if (Pthis->block_for_socket_[socket_fd_index]->GetRestSize() > 0)
{
/** the current block is not read entirely from the sender, so continue the loop to read.**/
continue;
}
/** a block is completely read. **/
Pthis->logging_->log("[%ld] The %d-th block is received from Lower[%s]", Pthis->state.exchange_id_, Pthis->debug_received_block[socket_fd_index],
Pthis->lower_ip_array[socket_fd_index].c_str());
Pthis->debug_received_block[socket_fd_index]++;
/** deserialize the data block from sender to the blockstreambase (received_block_stream_) **/
Pthis->received_block_stream_->deserialize((Block*) Pthis->block_for_socket_[socket_fd_index]);
/** mark block_for_socket_[socket_fd_index] to be empty so that it can accommodate the subsequent data **/
Pthis->block_for_socket_[socket_fd_index]->reset();
/** In the current implementation, a empty block stream means End-Of-File**/
const bool eof=Pthis->received_block_stream_->Empty();
if(!eof){
/** the newly obtained data block is validate, so we insert it into the buffer and post
* sem_new_block_or_eof_ so that all the threads waiting for the semaphore continue. **/
Pthis->buffer->insertBlock(Pthis->received_block_stream_);
//??? why is all ,not 1
// multiple threads will still compete with lock
Pthis->sem_new_block_or_eof_.post(Pthis->number_of_registered_expanded_threads_);
}
else
{
/** The newly obtained data block is the end-of-file. **/
Pthis->logging_->log("[%ld] *****This block is the last one.", Pthis->state.exchange_id_);
finish_times.push_back((int)getMilliSecond(start));
/** update the exhausted senders count and post sem_new_block_or_eof_ so that all the
* threads waiting for the semaphore continue.
**/
Pthis->nexhausted_lowers++;
Pthis->sem_new_block_or_eof_.post(Pthis->number_of_registered_expanded_threads_);
if (Pthis->nexhausted_lowers == Pthis->nlowers)
{
/*
* When all the exchange lowers are exhausted, notify the buffer
* that the input data is completely received.
*/
Pthis->buffer->setInputComplete();
/* print the finish times */
for(unsigned i=0;i<finish_times.size();i++){
printf("%d\t",finish_times[i]);
}
printf("\t Var:%5.4f\n",get_stddev(finish_times));
}
Pthis->logging_->log(
"[%ld] <<<<<<<<<<<<<<<<nexhausted_lowers=%d>>>>>>>>>>>>>>>>exchange=(%d,%d)",
Pthis->state.exchange_id_, Pthis->nexhausted_lowers,
Pthis->state.exchange_id_, Pthis->partition_offset);
/** tell the sender that all the block are consumed so that the sender can close the socket**/
Pthis->SendBlockAllConsumedNotification(events[i].data.fd);
Pthis->logging_->log("[%ld] This notification (all the blocks in the socket buffer are consumed) is send to the lower[%s] exchange=(%d,%d).\n",
Pthis->state.exchange_id_, Pthis->lower_ip_array[socket_fd_index].c_str(), Pthis->state.exchange_id_, Pthis->partition_offset);
}
}
if (done)
{
Pthis->logging_->log("[%ld] Closed connection on descriptor %d[%s]\n", Pthis->state.exchange_id_, events[i].data.fd,
Pthis->lower_ip_array[Pthis->lower_sock_fd_to_index[events[i].data.fd]].c_str());
/* Closing the descriptor will make epoll remove it
from the set of descriptors which are monitored. */
FileClose(events[i].data.fd);
}
}
}
}
}
/**
* build a hash table first, which stores the tuple needed to be deleted in a
*hash manner and accelerate the probe phase
*
*/
bool PhysicalDeleteFilter::Open(SegmentExecStatus* const exec_status,
const PartitionOffset& partition_offset) {
#ifdef TIME
startTimer(&timer);
#endif
RETURN_IF_CANCELLED(exec_status);
RegisterExpandedThreadToAllBarriers();
int ret = rSuccess;
int64_t timer;
bool winning_thread = false;
if (TryEntryIntoSerializedSection(0)) {
winning_thread = true;
ExpanderTracker::getInstance()->addNewStageEndpoint(
pthread_self(),
LocalStageEndPoint(stage_desc, "delete filter build", 0));
unsigned output_index = 0;
for (unsigned i = 0; i < state_.filter_key_deleted_.size(); i++) {
joinIndex_table_to_output_[i] = output_index;
output_index++;
}
for (unsigned i = 0; i < state_.payload_base_.size(); i++) {
payload_table_to_output_[i] = output_index;
output_index++;
}
// start to create the hash table, including the used hash function, hash
// table structure
hash_ = PartitionFunctionFactory::createBoostHashFunction(
state_.hashtable_bucket_num_);
int64_t hash_table_build = curtick();
hashtable_ = new BasicHashTable(
state_.hashtable_bucket_num_, state_.hashtable_bucket_size_,
state_.input_schema_left_->getTupleMaxSize());
if (NULL == hashtable_) {
return ret = rMemoryAllocationFailed;
LOG(ERROR) << "hashtable allocation failed"
<< "[" << rMemoryAllocationFailed << "]" << endl;
}
#ifdef _DEBUG_
consumed_tuples_from_left = 0;
#endif
// start to create the join expression, based on which it is able to the
// probe the deleted tuples
// QNode* expr = createEqualJoinExpression(
// state_.hashtable_schema_, state_.input_schema_right_,
// state_.filter_key_deleted_, state_.filter_key_base_);
// if (NULL == expr) {
// ret = rSuccess;
// LOG(ERROR) << "The generation of the enqual join expression for
// delete "
// "filter is failed" << endl;
// }
// ticks start = curtick();
//
// // start to generate the dedicated function, based on which the probe
// is
// // eventually acted, including using llvm and the function pointer
// if (Config::enable_codegen) {
// eftt_ = getExprFuncTwoTuples(expr, state_.hashtable_schema_,
// state_.input_schema_right_);
// memcpy_ = getMemcpy(state_.hashtable_schema_->getTupleMaxSize());
// memcat_ = getMemcat(state_.hashtable_schema_->getTupleMaxSize(),
// state_.input_schema_right_->getTupleMaxSize());
// }
// if (eftt_) {
// cff_ = PhysicalDeleteFilter::isMatchCodegen;
// printf("Codegen(delete filter) succeed(%4.3fms)!\n",
// getMilliSecond(start));
// } else {
cff_ = PhysicalDeleteFilter::isMatch;
// printf("Codegen(delete filter) failed!\n");
// }
// delete expr;
}
/**
* For performance concern, the following line should place just after
* "RegisterNewThreadToAllBarriers();"
* in order to accelerate the open response time.
*/
LOG(INFO) << "delete filter operator begin to open left child" << endl;
state_.child_left_->Open(exec_status, partition_offset);
LOG(INFO) << "delete filter operator finished opening left child" << endl;
BarrierArrive(0);
BasicHashTable::Iterator tmp_it = hashtable_->CreateIterator();
void* cur;
void* tuple_in_hashtable;
unsigned bn;
void* key_in_input;
void* key_in_hashtable;
void* value_in_input;
void* value_in_hashtable;
// create the context for the multi-thread to build the hash table
DeleteFilterThreadContext* dftc = CreateOrReuseContext(crm_numa_sensitive);
const Schema* input_schema = state_.input_schema_left_->duplicateSchema();
// we used the filter_key_deleted_[0] here, because the data is partitioned
// based on the first column in the join index
const Operate* op = input_schema->getcolumn(state_.filter_key_deleted_[0])
.operate->duplicateOperator();
const unsigned buckets = state_.hashtable_bucket_num_;
int64_t start = curtick();
int64_t processed_tuple_count = 0;
LOG(INFO) << "delete filter operator begin to call left child's next()"
<< endl;
RETURN_IF_CANCELLED(exec_status);
while (state_.child_left_->Next(exec_status, dftc->l_block_for_asking_)) {
RETURN_IF_CANCELLED(exec_status);
delete dftc->l_block_stream_iterator_;
dftc->l_block_stream_iterator_ =
dftc->l_block_for_asking_->createIterator();
while (cur = dftc->l_block_stream_iterator_->nextTuple()) {
#ifdef _DEBUG_
processed_tuple_count++;
lock_.acquire();
consumed_tuples_from_left++;
lock_.release();
#endif
const void* key_addr =
input_schema->getColumnAddess(state_.filter_key_deleted_[0], cur);
bn = op->getPartitionValue(key_addr, buckets);
tuple_in_hashtable = hashtable_->atomicAllocate(bn);
if (memcpy_)
memcpy_(tuple_in_hashtable, cur);
else
input_schema->copyTuple(cur, tuple_in_hashtable);
}
dftc->l_block_for_asking_->setEmpty();
}
// printf("%d cycles per
// tuple!\n",(curtick()-start)/processed_tuple_count);
unsigned tmp = 0;
#ifdef _DEBUG_
tuples_in_hashtable = 0;
produced_tuples = 0;
consumed_tuples_from_right = 0;
#endif
if (ExpanderTracker::getInstance()->isExpandedThreadCallBack(
pthread_self())) {
UnregisterExpandedThreadToAllBarriers(1);
// printf("<<<<<<<<<<<<<<<<<Join open detected call back
// signal!>>>>>>>>>>>>>>>>>\n");
return true;
}
BarrierArrive(1);
// if(winning_thread){
//// hashtable->report_status();
//// printf("Hash Table Build time: %4.4f\n",getMilliSecond(timer));
// }
// hashtable->report_status();
// printf("join open consume %d tuples\n",consumed_tuples_from_left);
RETURN_IF_CANCELLED(exec_status);
state_.child_right_->Open(exec_status, partition_offset);
RETURN_IF_CANCELLED(exec_status);
LOG(INFO) << "delete filter operator finished opening right child" << endl;
return true;
}
//int main_join_success(int argc, const char** argv){
int main_join_success22(int argc, const char** argv){
int master;
printf("Master(0) or Slave(others)?\n");
scanf("%d",&master);
if(master==0){
Environment::getInstance(true);
// const unsigned block_size=atoi(argv[1]);
// const unsigned thread_count=atoi(argv[2]);
// const unsigned expander_buffer=atoi(argv[3]);
// std::vector<std::string> upper_ip_list;
// const unsigned lowers_1=atoi(argv[4]);
// const unsigned lowers_2=atoi(argv[5]);
const unsigned block_size=4096;
const unsigned thread_count=3;
const unsigned expander_buffer=3;
std::vector<std::string> upper_ip_list;
const unsigned lowers_1=3;
const unsigned lowers_2=3;
upper_ip_list.push_back("10.11.1.208");
std::vector<std::string> lower_ip_list;
// lower_ip_list.push_back("10.11.1.201");
lower_ip_list.push_back("10.11.1.202");
lower_ip_list.push_back("10.11.1.203");
lower_ip_list.push_back("10.11.1.204");
lower_ip_list.push_back("10.11.1.205");
lower_ip_list.push_back("10.11.1.206");
lower_ip_list.push_back("10.11.1.207");
// lower_ip_list.push_back("10.11.1.208");
// lower_ip_list.push_back("10.11.1.209");
// lower_ip_list.push_back("10.11.1.210");
// lower_ip_list.push_back("10.11.1.211");
// lower_ip_list.push_back("10.11.1.214");
// std::vector<std::string> used_lowers;
// for(unsigned i=0;i<lowers;i++){
// used_lowers.push_back(lower_ip_list[i]);
// }
std::vector<std::string> used_lowers_1;
for(unsigned i=0;i<lowers_1;i++){
used_lowers_1.push_back(lower_ip_list[i]);
}
std::vector<std::string> used_lowers_2;
for(unsigned i=lower_ip_list.size()-1;i>=lower_ip_list.size()-lowers_2;i--){
used_lowers_2.push_back(lower_ip_list[i]);
}
std::vector<column_type> column_list,column_list_;
column_list.push_back(column_type(t_int));
Schema* schema=new SchemaFix(column_list);
// ExpandableBlockStreamSingleColumnScan::State ebssc_state("/home/imdb/temp/Uniform_0_99.column",schema,block_size);
// BlockStreamIteratorBase* ebssc=new ExpandableBlockStreamSingleColumnScan(ebssc_state);
ExpandableBlockStreamSingleColumnScan::State ebssc_state1("/home/imdb/temp/zhanglei/join_2",schema,block_size);
BlockStreamIteratorBase* ebssc1=new ExpandableBlockStreamSingleColumnScan(ebssc_state1);
// ExpandableBlockStreamSingleColumnScan::State ebssc_state2("/home/imdb/temp/zhanglei/Uniform_0_99.column_10000",schema,block_size);
// BlockStreamIteratorBase* ebssc2=new ExpandableBlockStreamSingleColumnScan(ebssc_state2);
ExpandableBlockStreamSingleColumnScan::State ebssc_state3("/home/imdb/temp/zhanglei/join_2_cp",schema,block_size);
BlockStreamIteratorBase* ebssc3=new ExpandableBlockStreamSingleColumnScan(ebssc_state3);
// ExpandableBlockStreamSingleColumnScan::State ebssc_state4("/home/imdb/temp/zhanglei/Uniform_0_99.column_10000_copy",schema,block_size);
// BlockStreamIteratorBase* ebssc4=new ExpandableBlockStreamSingleColumnScan(ebssc_state4);
// FilterIterator::AttributeComparator filter1(column_type(t_int),Comparator::L,0,&f);
// std::vector<FilterIterator::AttributeComparator> ComparatorList;
// ComparatorList.push_back(filter1);
// ExpandableBlockStreamFilter::State ebsf_state(schema,ebssc,ComparatorList,block_size);
// BlockStreamIteratorBase* bbsf=new ExpandableBlockStreamFilter(ebsf_state);
std::vector<Schema *> inputs;
inputs.push_back(schema);
inputs.push_back(schema);
column_list_.push_back(column_type(t_int));
column_list_.push_back(column_type(t_int));
Schema* output=new SchemaFix(column_list_);
std::vector<BlockStreamIteratorBase *> children_;
children_.push_back(ebssc1);
children_.push_back(ebssc3);
////////////////////////////////////////combined\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
BlockStreamCombinedIterator::State bsci_state1(inputs,output,children_);
BlockStreamCombinedIterator *bsc1=new BlockStreamCombinedIterator(bsci_state1);
BlockStreamExpander::State bse_state(output,bsc1,thread_count,block_size,expander_buffer);
BlockStreamIteratorBase* bse=new BlockStreamExpander(bse_state);
const int exchange_id=1;
ExpandableBlockStreamBroadcastExchange::State ebse_state(output,bse,block_size,used_lowers_2,used_lowers_1,exchange_id);
BlockStreamIteratorBase* ebse=new ExpandableBlockStreamBroadcastExchange(ebse_state);
BlockStreamCombinedIterator::State bsci_state2(inputs,output,children_);
BlockStreamCombinedIterator *bsc2=new BlockStreamCombinedIterator(bsci_state2);
std::vector<column_type> column_list_join;
column_list_join.push_back(column_type(t_int));
column_list_join.push_back(column_type(t_int));
column_list_join.push_back(column_type(t_int));
Schema* output_join=new SchemaFix(column_list_join);
std::vector<unsigned> joinIndex_left;
joinIndex_left.push_back(0);
std::vector<unsigned> joinIndex_right;
joinIndex_right.push_back(1);
std::vector<unsigned> payload_left;
payload_left.push_back(1);
std::vector<unsigned> payload_right;
payload_right.push_back(0);
BlockStreamJoinIterator::State bsji_state;//(ebse,bsc2,output,output,output_join,joinIndex_left,joinIndex_right,payload_left,payload_right,100,1024,4096);
BlockStreamJoinIterator* bsji=new BlockStreamJoinIterator(bsji_state);
BlockStreamExpander::State bse_state_(output_join,bsji,thread_count,block_size,expander_buffer);
BlockStreamIteratorBase* bse_=new BlockStreamExpander(bse_state_);
const int exchange_id_1=0;
ExpandableBlockStreamBroadcastExchange::State ebse_state_(output,bse_,block_size,used_lowers_1,upper_ip_list,exchange_id_1);
BlockStreamIteratorBase* ebse_=new ExpandableBlockStreamBroadcastExchange(ebse_state_);
BlockStreamExpander::State bse_state_1(output_join,ebse_,thread_count,block_size,expander_buffer);
BlockStreamIteratorBase* bse_1=new BlockStreamExpander(bse_state_1);
BlockStreamPerformanceMonitorTop::State bspfm_state(output_join,bse_1,block_size,1000);
BlockStreamIteratorBase* bspfm=new BlockStreamPerformanceMonitorTop(bspfm_state);
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
BlockStreamBase *block=new BlockStreamFix(block_size,12);
volatile int choice;
printf("Continue(1) or Not(0) ?\n");
scanf("%d",&choice);
unsigned tuple_count=0;
while(choice==1){
// bsf->open();
ebse_->open();
unsigned long long int start=curtick();
// tuple_count=0;
while(ebse_->next(block)){
BlockStreamBase::BlockStreamTraverseIterator *it=block->createIterator();
void* tuple;
while(tuple=it->nextTuple()){
printf("tuple:%d \n",*(int*)tuple);
tuple_count++;
}
block->setEmpty();
}
printf("Total tupls:%d\n",tuple_count);
printf("Time=%f Throughput=%f.\n",getSecond(start),1024/getSecond(start));
ebse_->close();
printf("Continue(0) or Not(1) ?\n");
// getchar();
scanf("%d",&choice);
printf("you input %d\n",choice);
}
}
else{
Environment::getInstance(false);
}
printf("Waiting~~~~~....\n");
while(true){
sleep(1);
}
}
/**
* first, block_for_socket_ for receive data from senders, then if one block is
* enough, next serialize it and put it into all_merged_block_buffer.
* epoll is good at listening every coming block for different socket.
*
*/
void* ExchangeMerger::Receiver(void* arg) {
ExchangeMerger* Pthis = reinterpret_cast<ExchangeMerger*>(arg);
struct epoll_event event;
struct epoll_event* events;
int status;
// create epoll
Pthis->epoll_fd_ = epoll_create1(0);
if (Pthis->epoll_fd_ == -1) {
LOG(ERROR) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " merger fail to create epoll!" << std::endl;
return NULL;
}
event.data.fd = Pthis->sock_fd_;
event.events = EPOLLIN | EPOLLET;
status = epoll_ctl(Pthis->epoll_fd_, EPOLL_CTL_ADD, Pthis->sock_fd_, &event);
if (-1 == status) {
LOG(ERROR) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " merger fail to create epoll_ctl!" << std::endl;
return NULL;
}
events = reinterpret_cast<epoll_event*>(
calloc(Pthis->lower_num_, sizeof(epoll_event)));
int fd_cur = 0;
ticks start = curtick();
std::vector<int> finish_times; // in ms
while (true) {
usleep(1);
const int event_count =
epoll_wait(Pthis->epoll_fd_, events, Pthis->lower_num_, -1);
for (int i = 0; i < event_count; i++) {
if ((events[i].events & EPOLLERR) || (events[i].events & EPOLLHUP) ||
(!(events[i].events & EPOLLIN))) {
if (errno == EINTR) {
continue;
}
LOG(WARNING) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " epoll error,reason: " << strerror(errno)
<< " close fd = " << events[i].data.fd << std::endl;
FileClose(events[i].data.fd);
continue;
} else if (Pthis->sock_fd_ == events[i].data.fd) {
/* We have a notification on the listening socket, which means one or
* more incoming connections.
*/
while (true) {
sockaddr in_addr;
socklen_t in_len;
int infd;
char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
in_len = sizeof in_addr;
infd = accept(Pthis->sock_fd_, &in_addr, &in_len);
if (infd == -1) {
if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) {
/* all the incoming connections are processed.*/
break;
} else {
LOG(WARNING) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " epoll accept error, try again!" << std::endl;
break;
}
}
status = getnameinfo(&in_addr, in_len, hbuf, sizeof(hbuf), sbuf,
sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV);
if (0 == status) {
LOG(INFO) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " Accepted connection on descriptor " << infd
<< " host= " << hbuf << " port= " << sbuf << std::endl;
Pthis->lower_ip_list_.push_back(hbuf);
Pthis->lower_sock_fd_to_id_[infd] =
Pthis->lower_ip_list_.size() - 1;
assert(Pthis->lower_ip_list_.size() <=
Pthis->state_.lower_id_list_.size());
}
/*Make the incoming socket non-blocking and add it to the list of fds
* to monitor.*/
if (!Pthis->SetSocketNonBlocking(infd)) {
return 0;
}
event.data.fd = infd;
event.events = EPOLLIN | EPOLLET;
status = epoll_ctl(Pthis->epoll_fd_, EPOLL_CTL_ADD, infd, &event);
if (-1 == status) {
LOG(ERROR) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " epoll_ctl error2" << std::endl;
return NULL;
}
}
continue;
} else {
/* We have data on the fd waiting to be read.*/
int done = 0;
while (true) {
int byte_received;
int socket_fd_index = Pthis->lower_sock_fd_to_id_[events[i].data.fd];
byte_received =
read(events[i].data.fd,
(reinterpret_cast<char*>(
Pthis->block_for_socket_[socket_fd_index]->getBlock())) +
Pthis->block_for_socket_[socket_fd_index]->GetCurSize(),
Pthis->block_for_socket_[socket_fd_index]->GetRestSize());
if (byte_received == -1) {
if (errno == EAGAIN) {
/*We have read all the data,so go back to the loop.*/
break;
}
LOG(WARNING) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " merger read error!" << std::endl;
done = 1;
} else if (byte_received == 0) {
/* End of file. The remote has closed the connection.*/
done = 1;
break;
}
/* The data is successfully read.*/
Pthis->block_for_socket_[socket_fd_index]->IncreaseActualSize(
byte_received);
if (Pthis->block_for_socket_[socket_fd_index]->GetRestSize() > 0) {
/** the current block is not read entirely from the Sender, so
* continue the loop to read.**/
continue;
}
/** a block is completely read. **/
/** deserialize the data block from Sender to the blockstreambase
* (block_for_deserialization) **/
Pthis->block_for_deserialization->deserialize(
reinterpret_cast<Block*>(
Pthis->block_for_socket_[socket_fd_index]));
/** mark block_for_socket_[socket_fd_index] to be empty so that it can
* accommodate the subsequent data **/
Pthis->block_for_socket_[socket_fd_index]->reset();
/**
* In the current implementation, a empty block stream means
* End-Of-File
*/
const bool eof = Pthis->block_for_deserialization->Empty();
if (!eof) {
/** the newly obtained data block is validate, so we insert it into
* the all_merged_block_buffer_ and post sem_new_block_or_eof_ so
* that all the threads waiting for the semaphore continue.
*/
Pthis->all_merged_block_buffer_->insertBlock(
Pthis->block_for_deserialization);
//??? why is all ,not 1
// multiple threads will still compete with lock
Pthis->sem_new_block_or_eof_.post(
Pthis->number_of_registered_expanded_threads_);
} else {
/** The newly obtained data block is the end-of-file. **/
LOG(INFO) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " This block is the last one." << std::endl;
finish_times.push_back(static_cast<int>(getMilliSecond(start)));
/** update the exhausted senders count and post
*sem_new_block_or_eof_ so that all the
* threads waiting for the semaphore continue.
**/
Pthis->exhausted_lowers++;
Pthis->sem_new_block_or_eof_.post(
Pthis->number_of_registered_expanded_threads_);
if (Pthis->exhausted_lowers == Pthis->lower_num_) {
/*
* When all the exchange lowers are exhausted, notify the
* all_merged_block_buffer_
* that the input data is completely received.
*/
Pthis->all_merged_block_buffer_->setInputComplete();
/* print the finish times */
// for (unsigned i = 0; i < finish_times.size(); i++)
// {
// printf("%d\t", finish_times[i]);
// }
// printf("\t Var:%5.4f\n", get_stddev(finish_times));
}
LOG(INFO) << " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " exhausted lowers = " << Pthis->exhausted_lowers
<< " senders have exhausted" << std::endl;
/** tell the Sender that all the block are consumed so that the
* Sender can close the socket**/
Pthis->ReplyAllBlocksConsumed(events[i].data.fd);
LOG(INFO)
<< " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " This notification (all the blocks in the socket buffer "
"are consumed) is replied to the lower "
<< Pthis->lower_ip_list_[socket_fd_index].c_str() << std::endl;
}
}
if (done) {
LOG(INFO)
<< " exchange_id = " << Pthis->state_.exchange_id_
<< " partition_offset = " << Pthis->partition_offset_
<< " Closed connection on descriptor " << events[i].data.fd << " "
<< Pthis->lower_ip_list_
[Pthis->lower_sock_fd_to_id_[events[i].data.fd]].c_str()
<< std::endl;
/* Closing the descriptor will make epoll remove it
from the set of descriptors which are monitored. */
FileClose(events[i].data.fd);
}
}
}
}
}
/**
* note the serialized block's size is different from others, it has tail info.
* exchange merger is at the end of one segment of plan, so it's the "stage_src"
* for this stage
*/
bool ExchangeMerger::Open(const PartitionOffset& partition_offset) {
unsigned long long int start = curtick();
RegisterExpandedThreadToAllBarriers();
if (TryEntryIntoSerializedSection()) { // first arrived thread dose
exhausted_lowers = 0;
this->partition_offset_ = partition_offset;
lower_num_ = state_.lower_id_list_.size();
socket_fd_lower_list_ = new int[lower_num_];
for (int i = 0; i < lower_num_; ++i) {
socket_fd_lower_list_[i] = -1;
}
// buffer all deserialized blocks come from every socket
all_merged_block_buffer_ = new BlockStreamBuffer(
state_.block_size_, BUFFER_SIZE_IN_EXCHANGE, state_.schema_);
ExpanderTracker::getInstance()->addNewStageEndpoint(
pthread_self(),
LocalStageEndPoint(stage_src, "Exchange", all_merged_block_buffer_));
// if one of block_for_socket is full, it will be deserialized into
// block_for_deserialization and sended to all_merged_data_buffer
block_for_deserialization =
BlockStreamBase::createBlock(state_.schema_, state_.block_size_);
// store block for each socket and the received block is serialized.
block_for_socket_ = new BlockContainer* [lower_num_];
for (unsigned i = 0; i < lower_num_; ++i) {
block_for_socket_[i] = new BlockContainer(
block_for_deserialization->getSerializedBlockSize());
}
if (PrepareSocket() == false) return false;
if (SetSocketNonBlocking(sock_fd_) == false) {
return false;
}
LOG(INFO) << "exchange_id = " << state_.exchange_id_
<< " partition_offset = " << partition_offset
<< " Open: exhausted lower senders num = " << exhausted_lowers
<< " lower sender num = " << lower_num_ << std::endl;
if (RegisterExchange() == false) {
LOG(ERROR) << "Register Exchange with ID = " << state_.exchange_id_
<< " fails!" << std::endl;
}
if (IsMaster()) {
/* According to a bug reported by dsc, the master exchange upper should
* check whether other uppers have registered to exchangeTracker.
* Otherwise, the lower may fail to connect to the exchangeTracker of some
* uppers when the lower nodes receive the exchange lower, as some uppers
* have not register the exchange_id to the exchangeTracker.
*/
LOG(INFO) << " exchange_id = " << state_.exchange_id_
<< " partition_offset = " << partition_offset
<< "Synchronizing...." << std::endl;
IsOtherMergersRegistered();
LOG(INFO) << " exchange_id = " << state_.exchange_id_
<< " partition_offset = " << partition_offset
<< " Synchronized! Then serialize and send its next segment "
"plan to all its lower senders" << std::endl;
if (SerializeAndSendPlan() == false) return false;
}
if (CreateReceiverThread() == false) {
return false;
}
CreatePerformanceInfo();
}
/// A synchronization barrier, in case of multiple expanded threads
BarrierArrive();
return true;
}
//int main(int argc,const char** argv){
int main_combine(int argc,const char** argv){
const unsigned block_size=BLOCK_SIZE_CAO;
const unsigned thread_count=4;
const unsigned expander_buffer=4;
std::vector<column_type> column_list,column_list_;
column_list.push_back(column_type(t_int));
Schema* schema=new SchemaFix(column_list);
ExpandableBlockStreamSingleColumnScan::State ebssc_state1("/home/imdb/temp/Uniform_0_99.column",schema,block_size);
BlockStreamIteratorBase* ebssc1=new ExpandableBlockStreamSingleColumnScan(ebssc_state1);
ExpandableBlockStreamSingleColumnScan::State ebssc_state2("/home/imdb/temp/Uniform_0_99.column",schema,block_size);
BlockStreamIteratorBase* ebssc2=new ExpandableBlockStreamSingleColumnScan(ebssc_state2);
std::vector<Schema *> inputs;
inputs.push_back(schema);
inputs.push_back(schema);
column_list_.push_back(column_type(t_int));
column_list_.push_back(column_type(t_int));
Schema* output=new SchemaFix(column_list_);
std::vector<BlockStreamIteratorBase *> children_;
children_.push_back(ebssc1);
children_.push_back(ebssc2);
BlockStreamCombinedIterator::State bsci_state(inputs,output,children_);
BlockStreamCombinedIterator *bsc=new BlockStreamCombinedIterator(bsci_state);
BlockStreamExpander::State bse_state(schema,bsc,thread_count,block_size,expander_buffer);
BlockStreamIteratorBase* bse=new BlockStreamExpander(bse_state);
BlockStreamBase *block=new BlockStreamFix(block_size,8);
int choice=0;
std::ostringstream ostr;
boost::archive::text_oarchive oa(ostr);
oa.register_type(static_cast<BlockStreamCombinedIterator *>(NULL));
oa.register_type(static_cast<BlockStreamExpander *>(NULL));
oa.register_type(static_cast<ExpandableBlockStreamSingleColumnScan *>(NULL));
Register_Schemas<boost::archive::text_oarchive>(oa);
// Register_Iterators(oa);
oa<<bse;
std::cout<<"Serialization Result:"<<ostr.str()<<std::endl;
std::istringstream istr(ostr.str());
boost::archive::text_iarchive ia(istr);
BlockStreamIteratorBase* des;
ia.register_type(static_cast<BlockStreamCombinedIterator *>(NULL));
ia.register_type(static_cast<BlockStreamExpander *>(NULL));
ia.register_type(static_cast<ExpandableBlockStreamSingleColumnScan *>(NULL));
Register_Schemas<boost::archive::text_iarchive>(ia);
ia>>des;
// return 1;
while(choice==0){
// bsf->open();
des->open();
cout<<"after open!"<<endl;
unsigned long long int start=curtick();
cout<<"ready for the next"<<endl;
unsigned tuple_count=0;
while(des->next(block)){
BlockStreamBase::BlockStreamTraverseIterator* it=block->createIterator();
while(it->nextTuple()){
tuple_count++;
}
block->setEmpty();
}
printf("Time=%f Throughput=%f.\n tuple=%d",getSecond(start),1024/getSecond(start),tuple_count);
des->close();
printf("Continue(0) or Not(1) ?\n");
scanf("%d",&choice);
}
}
static void query_select_aggregation_ing(){
/*
* select sum(a+1)+count(a),b
* from T
* group by b
*
* notation: p a p s
* */
unsigned long long int start=curtick();
TableDescriptor* table=Environment::getInstance()->getCatalog()->getTable("LINEITEM");
//===========================scan===========================
LogicalOperator* scan=new LogicalScan(table->getProjectoin(0));
//==========================project=========================
vector< vector<ExpressionItem> >expr_list1;
vector<ExpressionItem> expr0;
vector<ExpressionItem> expr1;
vector<ExpressionItem> expr2;
vector<ExpressionItem> expr3;
vector<ExpressionItem> expr4;
vector<ExpressionItem> expr5;
vector<ExpressionItem> expr6;
vector<ExpressionItem> expr7;
vector<ExpressionItem> expr8;
vector<ExpressionItem> expr9;
vector<ExpressionItem> expr10;
vector<ExpressionItem> expr11;
vector<ExpressionItem> expr12;
vector<ExpressionItem> expr13;
vector<ExpressionItem> expr14;
vector<ExpressionItem> expr15;
vector<ExpressionItem> expr16;
vector<ExpressionItem> expr17;
ExpressionItem ei1;
ExpressionItem ei1_1;
ExpressionItem ei1_2;
ExpressionItem ei1_3;
ExpressionItem ei1_4;
ExpressionItem ei1_5;
ExpressionItem ei1_6;
ExpressionItem ei1_7;
ExpressionItem ei1_8;
ExpressionItem ei1_9;
ExpressionItem ei2;
ExpressionItem ei3;
ExpressionItem ei4;
ExpressionItem ei5;
ExpressionItem ei6;
ExpressionItem ei7;
ExpressionItem ei8;
ExpressionItem ei9;
ExpressionItem ei10;
ExpressionItem ei11;
ExpressionItem ei12;
ExpressionItem ei13;
ExpressionItem ei14;
ExpressionItem ei15;
ExpressionItem ei16;
ExpressionItem ei17;
ei1_1.setVariable("LINEITEM.L_EXTENDEDPRICE");
ei1_2.setIntValue("1");
ei1_3.setVariable("LINEITEM.L_DISCOUNT");
ei1_4.setOperator("-");
ei1_5.setOperator("*");
ei1_6.setIntValue("1");
ei1_7.setVariable("LINEITEM.L_TEX");
ei1_8.setOperator("+");
ei1_9.setOperator("*");
ei1.setVariable("LINEITEM.row_id");
ei2.setVariable("LINEITEM.L_ORDERKEY");
ei3.setVariable("LINEITEM.L_PARTKEY");
ei4.setVariable("LINEITEM.L_SUPPKEY");
ei5.setVariable("LINEITEM.L_LINENUMBER");
ei6.setVariable("LINEITEM.L_QUANTITY");
ei7.setVariable("LINEITEM.L_EXTENDEDPRICE");
ei8.setVariable("LINEITEM.L_DISCOUNT");
ei9.setVariable("LINEITEM.L_TEX");
ei10.setVariable("LINEITEM.L_RETURNFLAG");
// ei10.size=1;
ei11.setVariable("LINEITEM.L_LINESTATUS");
// ei11.size=1;
ei13.setVariable("LINEITEM.L_COMMITDATE");
ei14.setVariable("LINEITEM.L_RECEIPTDATE");
ei15.setVariable("LINEITEM.L_SHIPINSTRUCT");
// ei15.size=25;
ei16.setVariable("LINEITEM.L_SHIPMODE");
// ei16.size=10;
ei17.setVariable("LINEITEM.L_COMMENT");
// ei17.size=44;
expr1.push_back(ei1_1);
expr1.push_back(ei1_2);
expr1.push_back(ei1_3);
expr1.push_back(ei1_4);
expr1.push_back(ei1_5);
// expr1.push_back(ei1_6);
// expr1.push_back(ei1_7);
// expr1.push_back(ei1_8);
// expr1.push_back(ei1_9);
// expr1.push_back(ei1);
expr2.push_back(ei1_1);
expr2.push_back(ei1_2);
expr2.push_back(ei1_3);
expr2.push_back(ei1_4);
expr2.push_back(ei1_5);
expr2.push_back(ei1_6);
expr2.push_back(ei1_7);
expr2.push_back(ei1_8);
expr2.push_back(ei1_9);
expr3.push_back(ei1_2);
expr3.push_back(ei1_3);
expr3.push_back(ei1_4);
// expr3.push_back(ei3);
expr4.push_back(ei4);
expr5.push_back(ei5);
expr6.push_back(ei6);
expr7.push_back(ei7);
expr8.push_back(ei8);
expr9.push_back(ei9);
expr10.push_back(ei10);
expr11.push_back(ei11);
expr12.push_back(ei12);
expr13.push_back(ei13);
expr14.push_back(ei14);
expr15.push_back(ei15);
expr16.push_back(ei16);
expr17.push_back(ei17);
expr0.push_back(ei1);
// expr_list1.push_back(expr0);
expr_list1.push_back(expr10);
expr_list1.push_back(expr11);
expr_list1.push_back(expr6);
expr_list1.push_back(expr7);
expr_list1.push_back(expr1);
expr_list1.push_back(expr2);
expr_list1.push_back(expr8);
expr_list1.push_back(expr3);
// expr_list1.push_back(expr3);
// expr_list1.push_back(expr4);
// expr_list1.push_back(expr5);
// expr_list1.push_back(expr8);
// expr_list1.push_back(expr9);
// expr_list1.push_back(expr12);
// expr_list1.push_back(expr13);
// expr_list1.push_back(expr14);
// expr_list1.push_back(expr15);
// expr_list1.push_back(expr16);
// expr_list1.push_back(expr17);
LogicalOperator* project1=new LogicalProject(scan,expr_list1);
// //========================aggregation=======================
// std::vector<Attribute> group_by_attributes;
// group_by_attributes.push_back(table->getAttribute("L_RETURNFLAG"));
// group_by_attributes.push_back(table->getAttribute("L_LINESTATUS"));
// std::vector<Attribute> aggregation_attributes;
// aggregation_attributes.push_back(table->getAttribute("L_QUANTITY"));
// aggregation_attributes.push_back(table->getAttribute("L_EXTENDEDPRICE"));
// aggregation_attributes.push_back(table->getAttribute("L_DISCOUNT"));
// aggregation_attributes.push_back(Attribute(ATTRIBUTE_ANY));
// std::vector<BlockStreamAggregationIterator::State::aggregation> aggregation_function;
//
// aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
// aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
// aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
// aggregation_function.push_back(BlockStreamAggregationIterator::State::count);
// LogicalOperator* aggregation=new Aggregation(group_by_attributes,aggregation_attributes,aggregation_function,project1);
//
// //==========================project=========================
// vector< vector<ExpressionItem> >expr_list2;
// LogicalOperator* project2=new LogicalProject(aggregation,expr_list2);
//===========================root===========================
LogicalOperator* root=new LogicalQueryPlanRoot(0,project1,LogicalQueryPlanRoot::PERFORMANCE);
cout<<"performance is ok!"<<endl;
BlockStreamIteratorBase* physical_iterator_tree=root->getIteratorTree(64*1024);
// physical_iterator_tree->print();
physical_iterator_tree->open();
while(physical_iterator_tree->next(0));
physical_iterator_tree->close();
printf("Q1: execution time: %4.4f second.\n",getSecond(start));
}
static void query_select_fzh() {
/*
* select sum(a+1)+count(a),b
* from T
* group by b
*
* notation: p a p s
* */
unsigned long long int start=curtick();
TableDescriptor* table=Environment::getInstance()->getCatalog()->getTable("LINEITEM");
//===========================scan===========================
LogicalOperator* scan=new LogicalScan(table->getProjectoin(0));
//==========================project=========================
vector< vector<ExpressionItem> >expr_list1;
vector<ExpressionItem> expr1;
vector<ExpressionItem> expr2;
vector<ExpressionItem> expr3;
vector<ExpressionItem> expr4;
vector<ExpressionItem> expr5;
vector<ExpressionItem> expr6;
vector<ExpressionItem> expr7;
vector<ExpressionItem> expr8;
vector<ExpressionItem> expr9;
vector<ExpressionItem> expr10;
vector<ExpressionItem> expr11;
vector<ExpressionItem> expr12;
vector<ExpressionItem> expr13;
vector<ExpressionItem> expr14;
vector<ExpressionItem> expr15;
vector<ExpressionItem> expr16;
vector<ExpressionItem> expr17;
ExpressionItem ei1;
ExpressionItem ei1_1;
ExpressionItem ei1_2;
ExpressionItem ei1_3;
ExpressionItem ei1_4;
ExpressionItem ei1_5;
ExpressionItem ei1_6;
ExpressionItem ei1_7;
ExpressionItem ei1_8;
ExpressionItem ei1_9;
ExpressionItem ei2;
ExpressionItem ei3;
ExpressionItem ei4;
ExpressionItem ei5;
ExpressionItem ei6;
ExpressionItem ei7;
ExpressionItem ei8;
ExpressionItem ei9;
ExpressionItem ei10;
ExpressionItem ei11;
ExpressionItem ei12;
ExpressionItem ei13;
ExpressionItem ei14;
ExpressionItem ei15;
ExpressionItem ei16;
ExpressionItem ei17;
ei1_1.setVariable("LINEITEM.row_id");
// ei1_2.setVariable("LINEITEM.L_ORDERKEY");
ei1_2.setIntValue("1");
ei1_3.setOperator("+");
expr1.push_back(ei1_1);
expr1.push_back(ei1_2);
expr1.push_back(ei1_3);
expr_list1.push_back(expr1);
LogicalOperator* project1=new LogicalProject(scan,expr_list1);
//========================aggregation=======================
std::vector<Attribute> group_by_attributes;
group_by_attributes.push_back(table->getAttribute("L_RETURNFLAG"));
group_by_attributes.push_back(table->getAttribute("L_LINESTATUS"));
std::vector<Attribute> aggregation_attributes;
aggregation_attributes.push_back(table->getAttribute("L_QUANTITY"));
aggregation_attributes.push_back(table->getAttribute("L_EXTENDEDPRICE"));
aggregation_attributes.push_back(table->getAttribute("L_DISCOUNT"));
aggregation_attributes.push_back(Attribute(ATTRIBUTE_ANY));
std::vector<BlockStreamAggregationIterator::State::aggregation> aggregation_function;
aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
aggregation_function.push_back(BlockStreamAggregationIterator::State::count);
LogicalOperator* aggregation=new Aggregation(group_by_attributes,aggregation_attributes,aggregation_function,project1);
//==========================project=========================
vector< vector<ExpressionItem> >expr_list2;
ExpressionItem ei21_1;
ei21_1.setVariable("LINEITEM.row_id+1");
vector<ExpressionItem> expr21;
expr21.push_back(ei21_1);
expr_list2.push_back(expr21);
LogicalOperator* project2=new LogicalProject(project1,expr_list2);
//===========================root===========================
LogicalOperator* root=new LogicalQueryPlanRoot(0,project2,LogicalQueryPlanRoot::PRINT);
cout<<"performance is ok!"<<endl;
BlockStreamIteratorBase* physical_iterator_tree=root->getIteratorTree(64*1024);
// physical_iterator_tree->print();
physical_iterator_tree->open();
while(physical_iterator_tree->next(0));
physical_iterator_tree->close();
printf("Q1: execution time: %4.4f second.\n",getSecond(start));
}
static void query_select_sort_string() {
/*
* select sum(a+1)+count(a),b
* from T
* group by b
*
* notation: p a p s
* */
unsigned long long int start=curtick();
TableDescriptor* table=Environment::getInstance()->getCatalog()->getTable("LINEITEM");
//===========================scan===========================
LogicalOperator* scan=new LogicalScan(table->getProjectoin(0));
//==========================project=========================
vector< vector<ExpressionItem> >expr_list1;
// vector<ExpressionItem> expr1;
vector<ExpressionItem> expr2;
vector<ExpressionItem> expr3;
ExpressionItem ei1_1;
ExpressionItem ei1_2;
ExpressionItem ei1_3;
ExpressionItem ei2;
ExpressionItem ei3;
// ei1_1.setVariable("LINEITEM.L_ORDERKEY");
// ei1_2.setIntValue("1");
// ei1_3.setOperator("+");
ei2.setVariable("LINEITEM.L_RETURNFLAG");
ei3.setVariable("LINEITEM.L_LINESTATUS");
// expr1.push_back(ei1_1);
// expr1.push_back(ei1_2);
// expr1.push_back(ei1_3);
expr2.push_back(ei2);
expr3.push_back(ei3);
// expr_list1.push_back(expr1);
expr_list1.push_back(expr2);
expr_list1.push_back(expr3);
LogicalOperator* project1=new LogicalProject(scan,expr_list1);
//============================groupby==========================
// std::vector<Attribute> group_by_attributes;
// group_by_attributes.push_back(project1->getDataflow().getAttribute("LINEITEM.L_RETURNFLAG"));
// group_by_attributes.push_back(project1->getDataflow().getAttribute("LINEITEM.L_LINESTATUS"));
// std::vector<Attribute> aggregation_attributes;
// aggregation_attributes.push_back(table->getAttribute("L_QUANTITY"));
// aggregation_attributes.push_back(table->getAttribute("L_EXTENDEDPRICE"));
// aggregation_attributes.push_back(table->getAttribute("L_DISCOUNT"));
// aggregation_attributes.push_back(Attribute(ATTRIBUTE_ANY));
// std::vector<BlockStreamAggregationIterator::State::aggregation> aggregation_function;
// aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
// aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
// aggregation_function.push_back(BlockStreamAggregationIterator::State::sum);
// aggregation_function.push_back(BlockStreamAggregationIterator::State::count);
// LogicalOperator* aggregation=new Aggregation(group_by_attributes,aggregation_attributes,aggregation_function,project1);
//==========================project=========================
// vector< vector<ExpressionItem> >expr_list2;
//
//// ExpressionItem ei21_1;
// ExpressionItem ei22;
// ExpressionItem ei23;
//// ei21_1.setVariable("LINEITEM.L_ORDERKEY+1");
// ei22.setVariable("LINEITEM.L_RETURNFLAG");
// ei23.setVariable("LINEITEM.L_LINESTATUS");
//// vector<ExpressionItem> expr21;
// vector<ExpressionItem> expr22;
// vector<ExpressionItem> expr23;
//// expr21.push_back(ei21_1);
// expr22.push_back(ei22);
// expr23.push_back(ei23);
//// expr_list2.push_back(expr21);
// expr_list2.push_back(expr22);
// expr_list2.push_back(expr23);
// LogicalOperator* project2=new LogicalProject(aggregation,expr_list2);
//============================sort==========================
vector<LogicalSort::OrderByAttr*>vo;
// vo.push_back(&LogicalSort::OrderByAttr("LINEITEM.L_ORDERKEY+1"));
//get_orderby_att(vo);
// char * orderstr1="LINEITEM.L_LINESTATUS";
// char * orderstr2="LINEITEM.L_RETURNFLAG";
LogicalSort::OrderByAttr tmp1("LINEITEM.L_LINESTATUS",1);
LogicalSort::OrderByAttr tmp2("LINEITEM.L_RETURNFLAG",0);
vo.push_back(&tmp1);
vo.push_back(&tmp2);
for(int i=0;i<vo.size();i++)
{
printf("vo[%d]= %s len=%d aa=%x sa=%x\n",i,(vo[i])->ta_,strlen(vo[i]->ta_) ,vo[i],vo[i]->ta_);
}
LogicalOperator* sort1=new LogicalSort(project1,vo);
sort1->print();
cout<<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"<<endl;
//===========================root===========================
LogicalOperator* root=new LogicalQueryPlanRoot(0,sort1,LogicalQueryPlanRoot::PRINT);
root->print();
cout<<"performance is ok!"<<endl;
getchar();
getchar();
// BlockStreamIteratorBase* physical_iterator_tree=root->getIteratorTree(64*1024);
//// physical_iterator_tree->print();
// physical_iterator_tree->open();
// while(physical_iterator_tree->next(0));
// physical_iterator_tree->close();
printf("Q1: execution time: %4.4f second.\n",getSecond(start));
}
bool PhysicalSort::Open(const PartitionOffset &part_off) {
/**
* TODO(anyone): multi threads can be used to pipeline!!!
*/
swap_num_ = 0;
temp_cur_ = 0;
/**
* first we can store all the data which will be bufferred
* 1, buffer is the first phase. multi-threads will be applyed to the data
* in the buffer.
* 2, sort the data in the buffer, we choose quicksort to sort the records
* by specifying the column to be sorted
* 3, whether to register the buffer into the blockmanager.
* */
BlockStreamBase *block_for_asking;
state_.partition_offset_ = part_off;
state_.child_->Open(state_.partition_offset_);
if (sema_open_.try_wait()) {
block_buffer_iterator_ = block_buffer_.createIterator();
open_finished_ = true;
} else {
while (!open_finished_) {
usleep(1);
}
}
if (CreateBlockStream(block_for_asking) == false) {
LOG(ERROR) << "error in the create block stream!!!" << endl;
return 0;
}
/**
* phase 1: store the data in the buffer!
* by using multi-threads to speed up
*/
unsigned block_offset = 0;
unsigned tuple_count_sum = 0;
BlockStreamBase::BlockStreamTraverseIterator *iterator_for_scan;
while (state_.child_->Next(block_for_asking)) {
tuple_count_sum += block_for_asking->getTuplesInBlock();
block_buffer_.atomicAppendNewBlock(block_for_asking);
iterator_for_scan = block_buffer_.getBlock(block_offset)->createIterator();
void *tuple_ptr = 0;
while ((tuple_ptr = iterator_for_scan->nextTuple()) != 0) {
tuple_vector_.push_back(tuple_ptr);
}
block_offset++;
if (CreateBlockStream(block_for_asking) == false) {
LOG(ERROR) << "error in the create block stream!!!" << endl;
return 0;
}
}
/**
* phase 2: sort the data in the buffer!
* by using multi-threads to speed up?
* TODO(anyone): whether to store the sorted data into the blockmanager.
*/
// cout<<"check the memory usage!!!"<<endl;
unsigned long long int time = curtick();
// order(state_.orderbyKey_,tuple_count_sum);
Order();
// cout<<"the tuple_count is: "<<tuple_count_sum<<"Total time:
// "<<getSecond(time)<<" seconds, the swap num is: "<<swap_num<<endl;
return true;
}
/**
* @brief Method description : describe the open method which gets results from
* the left child and copy them into its local buffer, say the block buffer. the
* block buffer is a dynamic block buffer since all the expanded threads will
* share the same block buffer.
*/
bool PhysicalNestLoopJoin::Open(SegmentExecStatus *const exec_status,
const PartitionOffset &partition_offset) {
RETURN_IF_CANCELLED(exec_status);
RegisterExpandedThreadToAllBarriers();
unsigned long long int timer;
bool winning_thread = false;
if (TryEntryIntoSerializedSection(0)) { // the first thread of all need to do
ExpanderTracker::getInstance()->addNewStageEndpoint(
pthread_self(), LocalStageEndPoint(stage_desc, "nest loop", 0));
winning_thread = true;
timer = curtick();
block_buffer_ = new DynamicBlockBuffer();
if (state_.join_condi_.size() == 0) {
join_condi_process_ = WithoutJoinCondi;
} else {
join_condi_process_ = WithJoinCondi;
}
LOG(INFO) << "[NestloopJoin]: [the first thread opens the nestloopJoin "
"physical operator]" << std::endl;
}
RETURN_IF_CANCELLED(exec_status);
state_.child_left_->Open(exec_status, partition_offset);
RETURN_IF_CANCELLED(exec_status);
BarrierArrive(0);
NestLoopJoinContext *jtc = CreateOrReuseContext(crm_numa_sensitive);
// create a new block to hold the results from the left child
// and add results to the dynamic buffer
// jtc->block_for_asking_ == BlockStreamBase::createBlock(
// state_.input_schema_left_,
// state_.block_size_);
CreateBlockStream(jtc->block_for_asking_, state_.input_schema_left_);
// auto temp = jtc->block_for_asking_->getBlock();
// cout << "temp start" << temp << endl;
//
// cout << "init block_for_asking_ : " << jtc->block_for_asking_->getBlock()
// << " is reference : " << jtc->block_for_asking_->isIsReference() <<
// endl;
while (state_.child_left_->Next(exec_status, jtc->block_for_asking_)) {
if (exec_status->is_cancelled()) {
if (NULL != jtc->block_for_asking_) {
delete jtc->block_for_asking_;
jtc->block_for_asking_ = NULL;
}
return false;
}
// cout << "after assgin start :" << jtc->block_for_asking_->getBlock()
// << " is reference : " << jtc->block_for_asking_->isIsReference()
// << endl;
block_buffer_->atomicAppendNewBlock(jtc->block_for_asking_);
// if (!jtc->block_for_asking_->isIsReference()) {
CreateBlockStream(jtc->block_for_asking_, state_.input_schema_left_);
// } else {
// // cout << "temp after" << temp << endl;
// // delete temp;
// CreateBlockStream(jtc->block_for_asking_,
// state_.input_schema_left_);
// jtc->block_for_asking_->setIsReference(false);
// }
// cout << "new start :" << jtc->block_for_asking_->getBlock()
// << " is reference : " << jtc->block_for_asking_->isIsReference()
// << endl;
}
// cout << "buffer_size_ : " << block_buffer_->GetBufferSize() << endl;
// the last block is created without storing the results from the left
// child
if (NULL != jtc->block_for_asking_) {
delete jtc->block_for_asking_;
jtc->block_for_asking_ = NULL;
}
// when the finished expanded thread finished its allocated work, it can be
// called back here. What should be noticed that the callback meas the to
// exit on the of the thread
if (ExpanderTracker::getInstance()->isExpandedThreadCallBack(
pthread_self())) {
UnregisterExpandedThreadToAllBarriers(1);
LOG(INFO) << "[NestloopJoin]: [the" << pthread_self()
<< "the thread is called to exit]" << std::endl;
return true; // the
}
BarrierArrive(1); // ??ERROR
// join_thread_context* jtc=new join_thread_context();
// jtc->block_for_asking_ == BlockStreamBase::createBlock(
// state_.input_schema_right_,
// state_.block_size_);
CreateBlockStream(jtc->block_for_asking_, state_.input_schema_right_);
jtc->block_for_asking_->setEmpty();
jtc->block_stream_iterator_ = jtc->block_for_asking_->createIterator();
jtc->buffer_iterator_ = block_buffer_->createIterator();
// underlying bug: as for buffer_iterator may be NULL, it's necessary to let
// every buffer_iterator of each thread point to an empty block
// jtc->buffer_stream_iterator_ =
// jtc->buffer_iterator_.nextBlock()->createIterator();
InitContext(jtc); // rename this function, here means to store the thread
// context in the operator context
RETURN_IF_CANCELLED(exec_status);
state_.child_right_->Open(exec_status, partition_offset);
return true;
}
