yiguolei commented on code in PR #9792:
URL: https://github.com/apache/incubator-doris/pull/9792#discussion_r884138206
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be/src/vec/exec/volap_scan_node.cpp:
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@@ -554,8 +576,11 @@ Block* VOlapScanNode::_alloc_block(bool& get_free_block) {
int VOlapScanNode::_start_scanner_thread_task(RuntimeState* state, int
block_per_scanner) {
std::list<VOlapScanner*> olap_scanners;
int assigned_thread_num = _running_thread;
- size_t max_thread = std::min(_volap_scanners.size(),
-
static_cast<size_t>(config::doris_scanner_thread_pool_thread_num));
+ size_t max_thread = config::doris_scanner_queue_size;
Review Comment:
The previous logic is wrong, For example, if assiged thread num = 13 and
volap_scanner.size = 5.
thread_slot_num = std::min(thread_slot_num, max_thread -
assigned_thread_num);
if (thread_slot_num <= 0) {
thread_slot_num = 1;
}
This logic will set thread_slot_num = 1. Will not put as many as task to
queue.
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