github-actions[bot] commented on code in PR #28493:
URL: https://github.com/apache/doris/pull/28493#discussion_r1428778628
##########
be/src/vec/exec/scan/scanner_scheduler.cpp:
##########
@@ -227,72 +226,74 @@ void ScannerScheduler::_schedule_scanners(ScannerContext*
ctx) {
// TODO(cmy): How to handle this "nice"?
int nice = 1;
auto iter = this_run.begin();
- auto submit_to_thread_pool = [&] {
- if (ctx->thread_token != nullptr) {
- // TODO llj tg how to treat this?
- while (iter != this_run.end()) {
- (*iter)->start_wait_worker_timer();
- auto s = ctx->thread_token->submit_func(
- [this, scanner = *iter, ctx] {
this->_scanner_scan(this, ctx, scanner); });
- if (s.ok()) {
- this_run.erase(iter++);
- } else {
- ctx->set_status_on_error(s);
- break;
- }
+ if (ctx->thread_token != nullptr) {
+ // TODO llj tg how to treat this?
+ while (iter != this_run.end()) {
+ (*iter)->start_wait_worker_timer();
+ auto s = ctx->thread_token->submit_func(
+ [this, scanner = *iter, ctx] { this->_scanner_scan(this,
ctx, scanner); });
+ if (s.ok()) {
+ this_run.erase(iter++);
+ } else {
+ ctx->set_status_on_error(s);
+ break;
}
- } else {
- while (iter != this_run.end()) {
- (*iter)->start_wait_worker_timer();
- TabletStorageType type = (*iter)->get_storage_type();
- bool ret = false;
- if (type == TabletStorageType::STORAGE_TYPE_LOCAL) {
- if (auto* scan_sche = ctx->get_simple_scan_scheduler()) {
- auto work_func = [this, scanner = *iter, ctx] {
- this->_scanner_scan(this, ctx, scanner);
- };
- SimplifiedScanTask simple_scan_task = {work_func, ctx};
- ret =
scan_sche->get_scan_queue()->try_put(simple_scan_task);
- } else if (ctx->get_task_group() &&
config::enable_workload_group_for_scan) {
- auto work_func = [this, scanner = *iter, ctx] {
- this->_scanner_scan(this, ctx, scanner);
- };
- taskgroup::ScanTask scan_task = {
- work_func, ctx,
ctx->get_task_group()->local_scan_task_entity(),
- nice};
- ret =
_task_group_local_scan_queue->push_back(scan_task);
- } else {
- PriorityThreadPool::Task task;
- task.work_function = [this, scanner = *iter, ctx] {
- this->_scanner_scan(this, ctx, scanner);
- };
- task.priority = nice;
- ret = _local_scan_thread_pool->offer(task);
- }
+ }
+ } else {
+ while (iter != this_run.end()) {
+ (*iter)->start_wait_worker_timer();
+ TabletStorageType type = (*iter)->get_storage_type();
+ bool ret = false;
+ if (type == TabletStorageType::STORAGE_TYPE_LOCAL) {
+ if (auto* scan_sche = ctx->get_simple_scan_scheduler()) {
+ auto work_func = [this, scanner = *iter, ctx] {
+ this->_scanner_scan(this, ctx, scanner);
+ };
+ SimplifiedScanTask simple_scan_task = {work_func, ctx};
+ ret =
scan_sche->get_scan_queue()->try_put(simple_scan_task);
+ } else if (ctx->get_task_group() &&
config::enable_workload_group_for_scan) {
+ auto work_func = [this, scanner = *iter, ctx] {
+ this->_scanner_scan(this, ctx, scanner);
+ };
+ taskgroup::ScanTask scan_task = {
+ work_func, ctx,
ctx->get_task_group()->local_scan_task_entity(), nice};
+ ret = _task_group_local_scan_queue->push_back(scan_task);
} else {
PriorityThreadPool::Task task;
task.work_function = [this, scanner = *iter, ctx] {
this->_scanner_scan(this, ctx, scanner);
};
task.priority = nice;
- ret = _remote_scan_thread_pool->offer(task);
- }
- if (ret) {
- this_run.erase(iter++);
- } else {
- ctx->set_status_on_error(
- Status::InternalError("failed to submit scanner to
scanner pool"));
- break;
+ ret = _local_scan_thread_pool->offer(task);
}
+ } else {
+ PriorityThreadPool::Task task;
+ task.work_function = [this, scanner = *iter, ctx] {
+ this->_scanner_scan(this, ctx, scanner);
+ };
+ task.priority = nice;
+ ret = _remote_scan_thread_pool->offer(task);
+ }
+ if (ret) {
+ this_run.erase(iter++);
+ } else {
+ ctx->set_status_on_error(
+ Status::InternalError("failed to submit scanner to
scanner pool"));
+ break;
}
}
- };
- submit_to_thread_pool();
+ }
ctx->incr_ctx_scheduling_time(watch.elapsed_time());
}
-void ScannerScheduler::_scanner_scan(ScannerScheduler* scheduler,
ScannerContext* ctx,
- VScannerSPtr scanner) {
+void ScannerScheduler::_scanner_scan(ScannerScheduler* scheduler,
Review Comment:
warning: function '_scanner_scan' exceeds recommended size/complexity
thresholds [readability-function-size]
```cpp
void ScannerScheduler::_scanner_scan(ScannerScheduler* scheduler,
^
```
<details>
<summary>Additional context</summary>
**be/src/vec/exec/scan/scanner_scheduler.cpp:288:** 138 lines including
whitespace and comments (threshold 80)
```cpp
void ScannerScheduler::_scanner_scan(ScannerScheduler* scheduler,
^
```
</details>
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