Skip to content

[Exec](profile) add max row count one backend in materialization profile #59728

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
HappenLee merged 1 commit into from
Jan 12, 2026
Merged

[Exec](profile) add max row count one backend in materialization profile #59728

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 13 additions & 0 deletions be/src/pipeline/exec/materialization_opertor.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,7 @@ void MaterializationSharedState::get_block(vectorized::Block* block) {

Status MaterializationSharedState::merge_multi_response() {
std::unordered_map<int64_t, std::pair<vectorized::Block, int>> block_maps;

for (int i = 0; i < block_order_results.size(); ++i) {
for (auto& [backend_id, rpc_struct] : rpc_struct_map) {
vectorized::Block partial_block;
Expand Down Expand Up @@ -175,12 +176,22 @@ Status MaterializationSharedState::create_muiltget_result(const vectorized::Colu
rpc_struct->second.request.mutable_request_block_descs(i)->add_file_id(
row_location.file_id);
block_order[j] = row_location.backend_id;

// Count rows per backend
_backend_rows_count[row_location.backend_id]++;
} else {
block_order[j] = 0;
}
}
}

// Update max rows per backend
for (const auto& [_, row_count] : _backend_rows_count) {
if (row_count > _max_rows_per_backend) {
_max_rows_per_backend = row_count;
}
}

eos = child_eos;
if (eos && gc_id_map) {
for (auto& [_, rpc_struct] : rpc_struct_map) {
Expand Down Expand Up @@ -361,6 +372,8 @@ Status MaterializationOperator::push(RuntimeState* state, vectorized::Block* in_
if (local_state._materialization_state.need_merge_block) {
SCOPED_TIMER(local_state._merge_response_timer);
RETURN_IF_ERROR(local_state._materialization_state.merge_multi_response());
local_state._max_rows_per_backend_counter->set(
(int64_t)local_state._materialization_state._max_rows_per_backend);
}
}

Expand Down
8 changes: 8 additions & 0 deletions be/src/pipeline/exec/materialization_opertor.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,11 @@ struct MaterializationSharedState {
std::vector<std::vector<int64_t>> block_order_results;
// backend id => <rpc profile info string key, rpc profile info string value>.
std::map<int64_t, std::map<std::string, fmt::memory_buffer>> backend_profile_info_string;

// Store the maximum number of rows processed by a single backend in the current batch
uint32_t _max_rows_per_backend = 0;
// Store the number of rows processed by each backend
std::unordered_map<int64_t, uint32_t> _backend_rows_count; // backend_id => rows_count
};

class MaterializationLocalState final : public PipelineXLocalState<FakeSharedState> {
Expand All @@ -80,6 +85,8 @@ class MaterializationLocalState final : public PipelineXLocalState<FakeSharedSta
RETURN_IF_ERROR(Base::init(state, info));
_max_rpc_timer = ADD_TIMER_WITH_LEVEL(custom_profile(), "MaxRpcTime", 2);
_merge_response_timer = ADD_TIMER_WITH_LEVEL(custom_profile(), "MergeResponseTime", 2);
_max_rows_per_backend_counter =
ADD_COUNTER_WITH_LEVEL(custom_profile(), "MaxRowsPerBackend", TUnit::UNIT, 2);
return Status::OK();
}

Expand All @@ -93,6 +100,7 @@ class MaterializationLocalState final : public PipelineXLocalState<FakeSharedSta
MaterializationSharedState _materialization_state;
RuntimeProfile::Counter* _max_rpc_timer = nullptr;
RuntimeProfile::Counter* _merge_response_timer = nullptr;
RuntimeProfile::Counter* _max_rows_per_backend_counter = nullptr;
};

class MaterializationOperator final : public StatefulOperatorX<MaterializationLocalState> {
Expand Down
Loading