github-actions[bot] commented on code in PR #27004:
URL: https://github.com/apache/doris/pull/27004#discussion_r1392996205


##########
be/src/vec/sink/vtablet_sink_v2.h:
##########
@@ -65,165 +64,33 @@
 #include "vec/data_types/data_type.h"
 #include "vec/exprs/vexpr_fwd.h"
 #include "vec/sink/vrow_distribution.h"
+#include "vec/sink/async_writer_sink.h"
+#include "vec/sink/writer/vtablet_writer_v2.h"
 
 namespace doris {
-class DeltaWriterV2;
-class LoadStreamStub;
-class ObjectPool;
-class RowDescriptor;
-class RuntimeState;
-class TDataSink;
-class TExpr;
-class TabletSchema;
-class TupleDescriptor;
-
-namespace stream_load {
-class LoadStreams;
-}
 
 namespace vectorized {
 
-class OlapTableBlockConvertor;
-class OlapTabletFinder;
-class VOlapTableSinkV2;
-class DeltaWriterV2Map;
-
-using Streams = std::vector<std::shared_ptr<LoadStreamStub>>;
-
-struct Rows {
-    int64_t partition_id;
-    int64_t index_id;
-    std::vector<int32_t> row_idxes;
-};
-
-using RowsForTablet = std::unordered_map<int64_t, Rows>;
+inline constexpr char VOLAP_TABLE_SINK_V2[] = "VOlapTableSinkV2";

Review Comment:
   warning: do not declare C-style arrays, use std::array<> instead 
[modernize-avoid-c-arrays]
   ```cpp
   inline constexpr char VOLAP_TABLE_SINK_V2[] = "VOlapTableSinkV2";
                    ^
   ```
   



##########
be/src/vec/sink/writer/vtablet_writer_v2.cpp:
##########
@@ -0,0 +1,551 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include <brpc/uri.h>
+#include <bthread/bthread.h>
+#include <fmt/format.h>
+#include <gen_cpp/DataSinks_types.h>
+#include <gen_cpp/Descriptors_types.h>
+#include <gen_cpp/Metrics_types.h>
+#include <gen_cpp/Types_types.h>
+#include <gen_cpp/internal_service.pb.h>
+
+#include <algorithm>
+#include <execution>
+#include <mutex>
+#include <ranges>
+#include <string>
+#include <unordered_map>
+
+#include "common/compiler_util.h" // IWYU pragma: keep
+#include "common/logging.h"
+#include "common/object_pool.h"
+#include "common/signal_handler.h"
+#include "common/status.h"
+#include "exec/tablet_info.h"
+#include "olap/delta_writer_v2.h"
+#include "runtime/descriptors.h"
+#include "runtime/exec_env.h"
+#include "runtime/runtime_state.h"
+#include "runtime/thread_context.h"
+#include "service/brpc.h"
+#include "util/brpc_client_cache.h"
+#include "util/doris_metrics.h"
+#include "util/network_util.h"
+#include "util/threadpool.h"
+#include "util/thrift_util.h"
+#include "util/uid_util.h"
+#include "vec/core/block.h"
+#include "vec/exprs/vexpr.h"
+#include "vec/sink/delta_writer_v2_pool.h"
+#include "vec/sink/load_stream_stub.h"
+#include "vec/sink/load_stream_stub_pool.h"
+#include "vec/sink/vtablet_block_convertor.h"
+#include "vec/sink/vtablet_finder.h"
+#include "vec/sink/writer/vtablet_writer_v2.h"
+
+namespace doris {
+class TExpr;
+
+namespace vectorized {
+
+VTabletWriterV2::VTabletWriterV2(const TDataSink& t_sink, const 
VExprContextSPtrs& output_exprs)
+        : AsyncResultWriter(output_exprs), _t_sink(t_sink) {
+    DCHECK(t_sink.__isset.olap_table_sink);
+    //auto& table_sink = t_sink.olap_table_sink;
+    //_db_id = table_sink.db_id;
+    //_table_id = table_sink.table_id;
+    //_txn_id = table_sink.txn_id;
+}
+
+VTabletWriterV2::~VTabletWriterV2() = default;
+
+Status VTabletWriterV2::on_partitions_created(TCreatePartitionResult* result) {
+    // add new tablet locations. it will use by address. so add to pool
+    auto* new_locations = _pool->add(new 
std::vector<TTabletLocation>(result->tablets));
+    _location->add_locations(*new_locations);
+
+    // update new node info
+    _nodes_info->add_nodes(result->nodes);
+
+    // incremental open stream
+    RETURN_IF_ERROR(_incremental_open_streams(result->partitions));
+
+    return Status::OK();
+}
+
+static Status on_partitions_created(void* writer, TCreatePartitionResult* 
result) {
+    return 
static_cast<VTabletWriterV2*>(writer)->on_partitions_created(result);
+}
+
+Status VTabletWriterV2::_incremental_open_streams(
+        const std::vector<TOlapTablePartition>& partitions) {
+    // do what we did in prepare() for partitions. indexes which don't change 
when we create new partition is orthogonal to partitions.
+    std::unordered_set<int64_t> known_indexes;
+    std::unordered_set<int64_t> new_backends;
+    for (const auto& t_partition : partitions) {
+        VOlapTablePartition* partition = nullptr;
+        RETURN_IF_ERROR(_vpartition->generate_partition_from(t_partition, 
partition));
+        for (const auto& index : partition->indexes) {
+            for (const auto& tablet_id : index.tablets) {
+                auto nodes = _location->find_tablet(tablet_id)->node_ids;
+                for (auto& node : nodes) {
+                    PTabletID tablet;
+                    tablet.set_partition_id(partition->id);
+                    tablet.set_index_id(index.index_id);
+                    tablet.set_tablet_id(tablet_id);
+                    if (!_streams_for_node.contains(node)) {
+                        new_backends.insert(node);
+                    }
+                    _tablets_for_node[node].emplace(tablet_id, tablet);
+                    if (known_indexes.contains(index.index_id)) [[likely]] {
+                        continue;
+                    }
+                    _indexes_from_node[node].emplace_back(tablet);
+                    known_indexes.insert(index.index_id);
+                }
+            }
+        }
+    }
+    for (int64_t node_id : new_backends) {
+        auto load_streams = 
ExecEnv::GetInstance()->load_stream_stub_pool()->get_or_create(
+                _load_id, _backend_id, node_id, _stream_per_node, 
_num_local_sink);
+        RETURN_IF_ERROR(_open_streams_to_backend(node_id, *load_streams));
+        _streams_for_node[node_id] = load_streams;
+    }
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_init_row_distribution() {
+    VRowDistributionContext ctx;
+
+    ctx.state = _state;
+    ctx.block_convertor = _block_convertor.get();
+    ctx.tablet_finder = _tablet_finder.get();
+    ctx.vpartition = _vpartition;
+    ctx.add_partition_request_timer = _add_partition_request_timer;
+    ctx.txn_id = _txn_id;
+    ctx.pool = _pool;
+    ctx.location = _location;
+    ctx.vec_output_expr_ctxs = &_output_vexpr_ctxs;
+    ctx.on_partitions_created = &vectorized::on_partitions_created;
+    ctx.caller = (void*)this;
+    ctx.schema = _schema;
+
+    _row_distribution.init(&ctx);
+
+    RETURN_IF_ERROR(_row_distribution.open(_output_row_desc));
+
+    return Status::OK();
+}
+
+Status VTabletWriterV2::init_properties(ObjectPool* pool, bool group_commit) {
+    _pool = pool;
+    _group_commit = group_commit;
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_init(RuntimeState* state, RuntimeProfile* profile) {
+    auto& table_sink = _t_sink.olap_table_sink;
+    _load_id.set_hi(table_sink.load_id.hi);
+    _load_id.set_lo(table_sink.load_id.lo);
+    _txn_id = table_sink.txn_id;
+    _num_replicas = table_sink.num_replicas;
+    _tuple_desc_id = table_sink.tuple_id;
+    _write_file_cache = table_sink.write_file_cache;
+    _schema.reset(new OlapTableSchemaParam());
+    RETURN_IF_ERROR(_schema->init(table_sink.schema));
+    _location = _pool->add(new OlapTableLocationParam(table_sink.location));
+    _nodes_info = _pool->add(new DorisNodesInfo(table_sink.nodes_info));
+
+    // if distributed column list is empty, we can ensure that tablet is with 
random distribution info
+    // and if load_to_single_tablet is set and set to true, we should find 
only one tablet in one partition
+    // for the whole olap table sink
+    auto find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_ROW;
+    if (table_sink.partition.distributed_columns.empty()) {
+        if (table_sink.__isset.load_to_single_tablet && 
table_sink.load_to_single_tablet) {
+            find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_SINK;
+        } else {
+            find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_BATCH;
+        }
+    }
+    _vpartition = _pool->add(new doris::VOlapTablePartitionParam(_schema, 
table_sink.partition));
+    _tablet_finder = std::make_unique<OlapTabletFinder>(_vpartition, 
find_tablet_mode);
+    RETURN_IF_ERROR(_vpartition->init());
+
+    _state = state;
+    _profile = profile;
+
+    _sender_id = state->per_fragment_instance_idx();
+    _num_senders = state->num_per_fragment_instances();
+    _backend_id = state->backend_id();
+    _stream_per_node = state->load_stream_per_node();
+    _total_streams = state->total_load_streams();
+    _num_local_sink = state->num_local_sink();
+    DCHECK(_stream_per_node > 0) << "load stream per node should be greator 
than 0";
+    DCHECK(_total_streams > 0) << "total load streams should be greator than 
0";
+    DCHECK(_num_local_sink > 0) << "num local sink should be greator than 0";
+    LOG(INFO) << "num senders: " << _num_senders << ", stream per node: " << 
_stream_per_node
+              << ", total_streams " << _total_streams << ", num_local_sink: " 
<< _num_local_sink;
+    _is_high_priority =
+            (state->execution_timeout() <= 
config::load_task_high_priority_threshold_second);
+
+    // profile must add to state's object pool
+    _profile = state->obj_pool()->add(new RuntimeProfile("VTabletWriterV2"));
+    _mem_tracker =
+            std::make_shared<MemTracker>("VTabletWriterV2:" + 
std::to_string(state->load_job_id()));
+    SCOPED_TIMER(_profile->total_time_counter());
+    SCOPED_CONSUME_MEM_TRACKER(_mem_tracker.get());
+
+    // get table's tuple descriptor
+    _output_tuple_desc = 
state->desc_tbl().get_tuple_descriptor(_tuple_desc_id);
+    if (_output_tuple_desc == nullptr) {
+        return Status::InternalError("unknown destination tuple descriptor, id 
= {}",
+                                     _tuple_desc_id);
+    }
+    _block_convertor = 
std::make_unique<OlapTableBlockConvertor>(_output_tuple_desc);
+    _block_convertor->init_autoinc_info(_schema->db_id(), _schema->table_id(),
+                                        _state->batch_size());
+    _output_row_desc = _pool->add(new RowDescriptor(_output_tuple_desc, 
false));
+
+    // add all counter
+    _input_rows_counter = ADD_COUNTER(_profile, "RowsRead", TUnit::UNIT);
+    _output_rows_counter = ADD_COUNTER(_profile, "RowsReturned", TUnit::UNIT);
+    _filtered_rows_counter = ADD_COUNTER(_profile, "RowsFiltered", 
TUnit::UNIT);
+    _send_data_timer = ADD_TIMER(_profile, "SendDataTime");
+    _wait_mem_limit_timer = ADD_CHILD_TIMER(_profile, "WaitMemLimitTime", 
"SendDataTime");
+    _row_distribution_timer = ADD_CHILD_TIMER(_profile, "RowDistributionTime", 
"SendDataTime");
+    _write_memtable_timer = ADD_CHILD_TIMER(_profile, "WriteMemTableTime", 
"SendDataTime");
+    _validate_data_timer = ADD_TIMER(_profile, "ValidateDataTime");
+    _open_timer = ADD_TIMER(_profile, "OpenTime");
+    _close_timer = ADD_TIMER(_profile, "CloseWaitTime");
+    _close_writer_timer = ADD_CHILD_TIMER(_profile, "CloseWriterTime", 
"CloseWaitTime");
+    _close_load_timer = ADD_CHILD_TIMER(_profile, "CloseLoadTime", 
"CloseWaitTime");
+
+    if (config::share_delta_writers) {
+        _delta_writer_for_tablet = 
ExecEnv::GetInstance()->delta_writer_v2_pool()->get_or_create(
+                _load_id, _num_local_sink);
+    } else {
+        _delta_writer_for_tablet = 
std::make_shared<DeltaWriterV2Map>(_load_id);
+    }
+    return Status::OK();
+}
+
+Status VTabletWriterV2::open(RuntimeState* state, RuntimeProfile* profile) {
+    RETURN_IF_ERROR(_init(state, profile));
+    SCOPED_TIMER(_profile->total_time_counter());
+    SCOPED_TIMER(_open_timer);
+    SCOPED_CONSUME_MEM_TRACKER(_mem_tracker.get());
+    signal::set_signal_task_id(_load_id);
+
+    _build_tablet_node_mapping();
+    RETURN_IF_ERROR(_open_streams(_backend_id));
+    RETURN_IF_ERROR(_init_row_distribution());
+
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_open_streams(int64_t src_id) {
+    for (auto& [dst_id, _] : _tablets_for_node) {
+        auto streams = 
ExecEnv::GetInstance()->load_stream_stub_pool()->get_or_create(
+                _load_id, src_id, dst_id, _stream_per_node, _num_local_sink);
+        RETURN_IF_ERROR(_open_streams_to_backend(dst_id, *streams));
+        _streams_for_node[dst_id] = streams;
+    }
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_open_streams_to_backend(int64_t dst_id,
+                                                 
::doris::stream_load::LoadStreams& streams) {
+    auto node_info = _nodes_info->find_node(dst_id);

Review Comment:
   warning: 'auto node_info' can be declared as 'const auto *node_info' 
[readability-qualified-auto]
   
   ```suggestion
       const auto *node_info = _nodes_info->find_node(dst_id);
   ```
   



##########
be/src/vec/sink/writer/vtablet_writer_v2.cpp:
##########
@@ -0,0 +1,551 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include <brpc/uri.h>
+#include <bthread/bthread.h>
+#include <fmt/format.h>
+#include <gen_cpp/DataSinks_types.h>
+#include <gen_cpp/Descriptors_types.h>
+#include <gen_cpp/Metrics_types.h>
+#include <gen_cpp/Types_types.h>
+#include <gen_cpp/internal_service.pb.h>
+
+#include <algorithm>
+#include <execution>
+#include <mutex>
+#include <ranges>
+#include <string>
+#include <unordered_map>
+
+#include "common/compiler_util.h" // IWYU pragma: keep
+#include "common/logging.h"
+#include "common/object_pool.h"
+#include "common/signal_handler.h"
+#include "common/status.h"
+#include "exec/tablet_info.h"
+#include "olap/delta_writer_v2.h"
+#include "runtime/descriptors.h"
+#include "runtime/exec_env.h"
+#include "runtime/runtime_state.h"
+#include "runtime/thread_context.h"
+#include "service/brpc.h"
+#include "util/brpc_client_cache.h"
+#include "util/doris_metrics.h"
+#include "util/network_util.h"
+#include "util/threadpool.h"
+#include "util/thrift_util.h"
+#include "util/uid_util.h"
+#include "vec/core/block.h"
+#include "vec/exprs/vexpr.h"
+#include "vec/sink/delta_writer_v2_pool.h"
+#include "vec/sink/load_stream_stub.h"
+#include "vec/sink/load_stream_stub_pool.h"
+#include "vec/sink/vtablet_block_convertor.h"
+#include "vec/sink/vtablet_finder.h"
+#include "vec/sink/writer/vtablet_writer_v2.h"
+
+namespace doris {
+class TExpr;
+
+namespace vectorized {
+
+VTabletWriterV2::VTabletWriterV2(const TDataSink& t_sink, const 
VExprContextSPtrs& output_exprs)
+        : AsyncResultWriter(output_exprs), _t_sink(t_sink) {
+    DCHECK(t_sink.__isset.olap_table_sink);
+    //auto& table_sink = t_sink.olap_table_sink;
+    //_db_id = table_sink.db_id;
+    //_table_id = table_sink.table_id;
+    //_txn_id = table_sink.txn_id;
+}
+
+VTabletWriterV2::~VTabletWriterV2() = default;
+
+Status VTabletWriterV2::on_partitions_created(TCreatePartitionResult* result) {
+    // add new tablet locations. it will use by address. so add to pool
+    auto* new_locations = _pool->add(new 
std::vector<TTabletLocation>(result->tablets));
+    _location->add_locations(*new_locations);
+
+    // update new node info
+    _nodes_info->add_nodes(result->nodes);
+
+    // incremental open stream
+    RETURN_IF_ERROR(_incremental_open_streams(result->partitions));
+
+    return Status::OK();
+}
+
+static Status on_partitions_created(void* writer, TCreatePartitionResult* 
result) {
+    return 
static_cast<VTabletWriterV2*>(writer)->on_partitions_created(result);
+}
+
+Status VTabletWriterV2::_incremental_open_streams(
+        const std::vector<TOlapTablePartition>& partitions) {
+    // do what we did in prepare() for partitions. indexes which don't change 
when we create new partition is orthogonal to partitions.
+    std::unordered_set<int64_t> known_indexes;
+    std::unordered_set<int64_t> new_backends;
+    for (const auto& t_partition : partitions) {
+        VOlapTablePartition* partition = nullptr;
+        RETURN_IF_ERROR(_vpartition->generate_partition_from(t_partition, 
partition));
+        for (const auto& index : partition->indexes) {
+            for (const auto& tablet_id : index.tablets) {
+                auto nodes = _location->find_tablet(tablet_id)->node_ids;
+                for (auto& node : nodes) {
+                    PTabletID tablet;
+                    tablet.set_partition_id(partition->id);
+                    tablet.set_index_id(index.index_id);
+                    tablet.set_tablet_id(tablet_id);
+                    if (!_streams_for_node.contains(node)) {
+                        new_backends.insert(node);
+                    }
+                    _tablets_for_node[node].emplace(tablet_id, tablet);
+                    if (known_indexes.contains(index.index_id)) [[likely]] {
+                        continue;
+                    }
+                    _indexes_from_node[node].emplace_back(tablet);
+                    known_indexes.insert(index.index_id);
+                }
+            }
+        }
+    }
+    for (int64_t node_id : new_backends) {
+        auto load_streams = 
ExecEnv::GetInstance()->load_stream_stub_pool()->get_or_create(
+                _load_id, _backend_id, node_id, _stream_per_node, 
_num_local_sink);
+        RETURN_IF_ERROR(_open_streams_to_backend(node_id, *load_streams));
+        _streams_for_node[node_id] = load_streams;
+    }
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_init_row_distribution() {
+    VRowDistributionContext ctx;
+
+    ctx.state = _state;
+    ctx.block_convertor = _block_convertor.get();
+    ctx.tablet_finder = _tablet_finder.get();
+    ctx.vpartition = _vpartition;
+    ctx.add_partition_request_timer = _add_partition_request_timer;
+    ctx.txn_id = _txn_id;
+    ctx.pool = _pool;
+    ctx.location = _location;
+    ctx.vec_output_expr_ctxs = &_output_vexpr_ctxs;
+    ctx.on_partitions_created = &vectorized::on_partitions_created;
+    ctx.caller = (void*)this;
+    ctx.schema = _schema;
+
+    _row_distribution.init(&ctx);
+
+    RETURN_IF_ERROR(_row_distribution.open(_output_row_desc));
+
+    return Status::OK();
+}
+
+Status VTabletWriterV2::init_properties(ObjectPool* pool, bool group_commit) {
+    _pool = pool;
+    _group_commit = group_commit;
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_init(RuntimeState* state, RuntimeProfile* profile) {
+    auto& table_sink = _t_sink.olap_table_sink;
+    _load_id.set_hi(table_sink.load_id.hi);
+    _load_id.set_lo(table_sink.load_id.lo);
+    _txn_id = table_sink.txn_id;
+    _num_replicas = table_sink.num_replicas;
+    _tuple_desc_id = table_sink.tuple_id;
+    _write_file_cache = table_sink.write_file_cache;
+    _schema.reset(new OlapTableSchemaParam());
+    RETURN_IF_ERROR(_schema->init(table_sink.schema));
+    _location = _pool->add(new OlapTableLocationParam(table_sink.location));
+    _nodes_info = _pool->add(new DorisNodesInfo(table_sink.nodes_info));
+
+    // if distributed column list is empty, we can ensure that tablet is with 
random distribution info
+    // and if load_to_single_tablet is set and set to true, we should find 
only one tablet in one partition
+    // for the whole olap table sink
+    auto find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_ROW;
+    if (table_sink.partition.distributed_columns.empty()) {
+        if (table_sink.__isset.load_to_single_tablet && 
table_sink.load_to_single_tablet) {
+            find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_SINK;
+        } else {
+            find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_BATCH;
+        }
+    }
+    _vpartition = _pool->add(new doris::VOlapTablePartitionParam(_schema, 
table_sink.partition));
+    _tablet_finder = std::make_unique<OlapTabletFinder>(_vpartition, 
find_tablet_mode);
+    RETURN_IF_ERROR(_vpartition->init());
+
+    _state = state;
+    _profile = profile;
+
+    _sender_id = state->per_fragment_instance_idx();
+    _num_senders = state->num_per_fragment_instances();
+    _backend_id = state->backend_id();
+    _stream_per_node = state->load_stream_per_node();
+    _total_streams = state->total_load_streams();
+    _num_local_sink = state->num_local_sink();
+    DCHECK(_stream_per_node > 0) << "load stream per node should be greator 
than 0";
+    DCHECK(_total_streams > 0) << "total load streams should be greator than 
0";
+    DCHECK(_num_local_sink > 0) << "num local sink should be greator than 0";
+    LOG(INFO) << "num senders: " << _num_senders << ", stream per node: " << 
_stream_per_node
+              << ", total_streams " << _total_streams << ", num_local_sink: " 
<< _num_local_sink;
+    _is_high_priority =
+            (state->execution_timeout() <= 
config::load_task_high_priority_threshold_second);
+
+    // profile must add to state's object pool
+    _profile = state->obj_pool()->add(new RuntimeProfile("VTabletWriterV2"));
+    _mem_tracker =
+            std::make_shared<MemTracker>("VTabletWriterV2:" + 
std::to_string(state->load_job_id()));
+    SCOPED_TIMER(_profile->total_time_counter());
+    SCOPED_CONSUME_MEM_TRACKER(_mem_tracker.get());
+
+    // get table's tuple descriptor
+    _output_tuple_desc = 
state->desc_tbl().get_tuple_descriptor(_tuple_desc_id);
+    if (_output_tuple_desc == nullptr) {
+        return Status::InternalError("unknown destination tuple descriptor, id 
= {}",
+                                     _tuple_desc_id);
+    }
+    _block_convertor = 
std::make_unique<OlapTableBlockConvertor>(_output_tuple_desc);
+    _block_convertor->init_autoinc_info(_schema->db_id(), _schema->table_id(),
+                                        _state->batch_size());
+    _output_row_desc = _pool->add(new RowDescriptor(_output_tuple_desc, 
false));
+
+    // add all counter
+    _input_rows_counter = ADD_COUNTER(_profile, "RowsRead", TUnit::UNIT);
+    _output_rows_counter = ADD_COUNTER(_profile, "RowsReturned", TUnit::UNIT);
+    _filtered_rows_counter = ADD_COUNTER(_profile, "RowsFiltered", 
TUnit::UNIT);
+    _send_data_timer = ADD_TIMER(_profile, "SendDataTime");
+    _wait_mem_limit_timer = ADD_CHILD_TIMER(_profile, "WaitMemLimitTime", 
"SendDataTime");
+    _row_distribution_timer = ADD_CHILD_TIMER(_profile, "RowDistributionTime", 
"SendDataTime");
+    _write_memtable_timer = ADD_CHILD_TIMER(_profile, "WriteMemTableTime", 
"SendDataTime");
+    _validate_data_timer = ADD_TIMER(_profile, "ValidateDataTime");
+    _open_timer = ADD_TIMER(_profile, "OpenTime");
+    _close_timer = ADD_TIMER(_profile, "CloseWaitTime");
+    _close_writer_timer = ADD_CHILD_TIMER(_profile, "CloseWriterTime", 
"CloseWaitTime");
+    _close_load_timer = ADD_CHILD_TIMER(_profile, "CloseLoadTime", 
"CloseWaitTime");
+
+    if (config::share_delta_writers) {
+        _delta_writer_for_tablet = 
ExecEnv::GetInstance()->delta_writer_v2_pool()->get_or_create(
+                _load_id, _num_local_sink);
+    } else {
+        _delta_writer_for_tablet = 
std::make_shared<DeltaWriterV2Map>(_load_id);
+    }
+    return Status::OK();
+}
+
+Status VTabletWriterV2::open(RuntimeState* state, RuntimeProfile* profile) {
+    RETURN_IF_ERROR(_init(state, profile));
+    SCOPED_TIMER(_profile->total_time_counter());
+    SCOPED_TIMER(_open_timer);
+    SCOPED_CONSUME_MEM_TRACKER(_mem_tracker.get());
+    signal::set_signal_task_id(_load_id);
+
+    _build_tablet_node_mapping();
+    RETURN_IF_ERROR(_open_streams(_backend_id));
+    RETURN_IF_ERROR(_init_row_distribution());
+
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_open_streams(int64_t src_id) {

Review Comment:
   warning: method '_open_streams' can be made static 
[readability-convert-member-functions-to-static]
   
   be/src/vec/sink/writer/vtablet_writer_v2.h:126:
   ```diff
   -     Status _open_streams(int64_t src_id);
   +     static Status _open_streams(int64_t src_id);
   ```
   



##########
be/src/vec/sink/writer/vtablet_writer_v2.cpp:
##########
@@ -0,0 +1,551 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include <brpc/uri.h>
+#include <bthread/bthread.h>
+#include <fmt/format.h>
+#include <gen_cpp/DataSinks_types.h>
+#include <gen_cpp/Descriptors_types.h>
+#include <gen_cpp/Metrics_types.h>
+#include <gen_cpp/Types_types.h>
+#include <gen_cpp/internal_service.pb.h>
+
+#include <algorithm>
+#include <execution>
+#include <mutex>
+#include <ranges>
+#include <string>
+#include <unordered_map>
+
+#include "common/compiler_util.h" // IWYU pragma: keep
+#include "common/logging.h"
+#include "common/object_pool.h"
+#include "common/signal_handler.h"
+#include "common/status.h"
+#include "exec/tablet_info.h"
+#include "olap/delta_writer_v2.h"
+#include "runtime/descriptors.h"
+#include "runtime/exec_env.h"
+#include "runtime/runtime_state.h"
+#include "runtime/thread_context.h"
+#include "service/brpc.h"
+#include "util/brpc_client_cache.h"
+#include "util/doris_metrics.h"
+#include "util/network_util.h"
+#include "util/threadpool.h"
+#include "util/thrift_util.h"
+#include "util/uid_util.h"
+#include "vec/core/block.h"
+#include "vec/exprs/vexpr.h"
+#include "vec/sink/delta_writer_v2_pool.h"
+#include "vec/sink/load_stream_stub.h"
+#include "vec/sink/load_stream_stub_pool.h"
+#include "vec/sink/vtablet_block_convertor.h"
+#include "vec/sink/vtablet_finder.h"
+#include "vec/sink/writer/vtablet_writer_v2.h"
+
+namespace doris {
+class TExpr;
+
+namespace vectorized {
+
+VTabletWriterV2::VTabletWriterV2(const TDataSink& t_sink, const 
VExprContextSPtrs& output_exprs)
+        : AsyncResultWriter(output_exprs), _t_sink(t_sink) {
+    DCHECK(t_sink.__isset.olap_table_sink);
+    //auto& table_sink = t_sink.olap_table_sink;
+    //_db_id = table_sink.db_id;
+    //_table_id = table_sink.table_id;
+    //_txn_id = table_sink.txn_id;
+}
+
+VTabletWriterV2::~VTabletWriterV2() = default;
+
+Status VTabletWriterV2::on_partitions_created(TCreatePartitionResult* result) {
+    // add new tablet locations. it will use by address. so add to pool
+    auto* new_locations = _pool->add(new 
std::vector<TTabletLocation>(result->tablets));
+    _location->add_locations(*new_locations);
+
+    // update new node info
+    _nodes_info->add_nodes(result->nodes);
+
+    // incremental open stream
+    RETURN_IF_ERROR(_incremental_open_streams(result->partitions));
+
+    return Status::OK();
+}
+
+static Status on_partitions_created(void* writer, TCreatePartitionResult* 
result) {
+    return 
static_cast<VTabletWriterV2*>(writer)->on_partitions_created(result);
+}
+
+Status VTabletWriterV2::_incremental_open_streams(
+        const std::vector<TOlapTablePartition>& partitions) {
+    // do what we did in prepare() for partitions. indexes which don't change 
when we create new partition is orthogonal to partitions.
+    std::unordered_set<int64_t> known_indexes;
+    std::unordered_set<int64_t> new_backends;
+    for (const auto& t_partition : partitions) {
+        VOlapTablePartition* partition = nullptr;
+        RETURN_IF_ERROR(_vpartition->generate_partition_from(t_partition, 
partition));
+        for (const auto& index : partition->indexes) {
+            for (const auto& tablet_id : index.tablets) {
+                auto nodes = _location->find_tablet(tablet_id)->node_ids;
+                for (auto& node : nodes) {
+                    PTabletID tablet;
+                    tablet.set_partition_id(partition->id);
+                    tablet.set_index_id(index.index_id);
+                    tablet.set_tablet_id(tablet_id);
+                    if (!_streams_for_node.contains(node)) {
+                        new_backends.insert(node);
+                    }
+                    _tablets_for_node[node].emplace(tablet_id, tablet);
+                    if (known_indexes.contains(index.index_id)) [[likely]] {
+                        continue;
+                    }
+                    _indexes_from_node[node].emplace_back(tablet);
+                    known_indexes.insert(index.index_id);
+                }
+            }
+        }
+    }
+    for (int64_t node_id : new_backends) {
+        auto load_streams = 
ExecEnv::GetInstance()->load_stream_stub_pool()->get_or_create(
+                _load_id, _backend_id, node_id, _stream_per_node, 
_num_local_sink);
+        RETURN_IF_ERROR(_open_streams_to_backend(node_id, *load_streams));
+        _streams_for_node[node_id] = load_streams;
+    }
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_init_row_distribution() {
+    VRowDistributionContext ctx;
+
+    ctx.state = _state;
+    ctx.block_convertor = _block_convertor.get();
+    ctx.tablet_finder = _tablet_finder.get();
+    ctx.vpartition = _vpartition;
+    ctx.add_partition_request_timer = _add_partition_request_timer;
+    ctx.txn_id = _txn_id;
+    ctx.pool = _pool;
+    ctx.location = _location;
+    ctx.vec_output_expr_ctxs = &_output_vexpr_ctxs;
+    ctx.on_partitions_created = &vectorized::on_partitions_created;
+    ctx.caller = (void*)this;
+    ctx.schema = _schema;
+
+    _row_distribution.init(&ctx);
+
+    RETURN_IF_ERROR(_row_distribution.open(_output_row_desc));
+
+    return Status::OK();
+}
+
+Status VTabletWriterV2::init_properties(ObjectPool* pool, bool group_commit) {
+    _pool = pool;
+    _group_commit = group_commit;
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_init(RuntimeState* state, RuntimeProfile* profile) {
+    auto& table_sink = _t_sink.olap_table_sink;
+    _load_id.set_hi(table_sink.load_id.hi);
+    _load_id.set_lo(table_sink.load_id.lo);
+    _txn_id = table_sink.txn_id;
+    _num_replicas = table_sink.num_replicas;
+    _tuple_desc_id = table_sink.tuple_id;
+    _write_file_cache = table_sink.write_file_cache;
+    _schema.reset(new OlapTableSchemaParam());
+    RETURN_IF_ERROR(_schema->init(table_sink.schema));
+    _location = _pool->add(new OlapTableLocationParam(table_sink.location));
+    _nodes_info = _pool->add(new DorisNodesInfo(table_sink.nodes_info));
+
+    // if distributed column list is empty, we can ensure that tablet is with 
random distribution info
+    // and if load_to_single_tablet is set and set to true, we should find 
only one tablet in one partition
+    // for the whole olap table sink
+    auto find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_ROW;
+    if (table_sink.partition.distributed_columns.empty()) {
+        if (table_sink.__isset.load_to_single_tablet && 
table_sink.load_to_single_tablet) {
+            find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_SINK;
+        } else {
+            find_tablet_mode = 
OlapTabletFinder::FindTabletMode::FIND_TABLET_EVERY_BATCH;
+        }
+    }
+    _vpartition = _pool->add(new doris::VOlapTablePartitionParam(_schema, 
table_sink.partition));
+    _tablet_finder = std::make_unique<OlapTabletFinder>(_vpartition, 
find_tablet_mode);
+    RETURN_IF_ERROR(_vpartition->init());
+
+    _state = state;
+    _profile = profile;
+
+    _sender_id = state->per_fragment_instance_idx();
+    _num_senders = state->num_per_fragment_instances();
+    _backend_id = state->backend_id();
+    _stream_per_node = state->load_stream_per_node();
+    _total_streams = state->total_load_streams();
+    _num_local_sink = state->num_local_sink();
+    DCHECK(_stream_per_node > 0) << "load stream per node should be greator 
than 0";
+    DCHECK(_total_streams > 0) << "total load streams should be greator than 
0";
+    DCHECK(_num_local_sink > 0) << "num local sink should be greator than 0";
+    LOG(INFO) << "num senders: " << _num_senders << ", stream per node: " << 
_stream_per_node
+              << ", total_streams " << _total_streams << ", num_local_sink: " 
<< _num_local_sink;
+    _is_high_priority =
+            (state->execution_timeout() <= 
config::load_task_high_priority_threshold_second);
+
+    // profile must add to state's object pool
+    _profile = state->obj_pool()->add(new RuntimeProfile("VTabletWriterV2"));
+    _mem_tracker =
+            std::make_shared<MemTracker>("VTabletWriterV2:" + 
std::to_string(state->load_job_id()));
+    SCOPED_TIMER(_profile->total_time_counter());
+    SCOPED_CONSUME_MEM_TRACKER(_mem_tracker.get());
+
+    // get table's tuple descriptor
+    _output_tuple_desc = 
state->desc_tbl().get_tuple_descriptor(_tuple_desc_id);
+    if (_output_tuple_desc == nullptr) {
+        return Status::InternalError("unknown destination tuple descriptor, id 
= {}",
+                                     _tuple_desc_id);
+    }
+    _block_convertor = 
std::make_unique<OlapTableBlockConvertor>(_output_tuple_desc);
+    _block_convertor->init_autoinc_info(_schema->db_id(), _schema->table_id(),
+                                        _state->batch_size());
+    _output_row_desc = _pool->add(new RowDescriptor(_output_tuple_desc, 
false));
+
+    // add all counter
+    _input_rows_counter = ADD_COUNTER(_profile, "RowsRead", TUnit::UNIT);
+    _output_rows_counter = ADD_COUNTER(_profile, "RowsReturned", TUnit::UNIT);
+    _filtered_rows_counter = ADD_COUNTER(_profile, "RowsFiltered", 
TUnit::UNIT);
+    _send_data_timer = ADD_TIMER(_profile, "SendDataTime");
+    _wait_mem_limit_timer = ADD_CHILD_TIMER(_profile, "WaitMemLimitTime", 
"SendDataTime");
+    _row_distribution_timer = ADD_CHILD_TIMER(_profile, "RowDistributionTime", 
"SendDataTime");
+    _write_memtable_timer = ADD_CHILD_TIMER(_profile, "WriteMemTableTime", 
"SendDataTime");
+    _validate_data_timer = ADD_TIMER(_profile, "ValidateDataTime");
+    _open_timer = ADD_TIMER(_profile, "OpenTime");
+    _close_timer = ADD_TIMER(_profile, "CloseWaitTime");
+    _close_writer_timer = ADD_CHILD_TIMER(_profile, "CloseWriterTime", 
"CloseWaitTime");
+    _close_load_timer = ADD_CHILD_TIMER(_profile, "CloseLoadTime", 
"CloseWaitTime");
+
+    if (config::share_delta_writers) {
+        _delta_writer_for_tablet = 
ExecEnv::GetInstance()->delta_writer_v2_pool()->get_or_create(
+                _load_id, _num_local_sink);
+    } else {
+        _delta_writer_for_tablet = 
std::make_shared<DeltaWriterV2Map>(_load_id);
+    }
+    return Status::OK();
+}
+
+Status VTabletWriterV2::open(RuntimeState* state, RuntimeProfile* profile) {
+    RETURN_IF_ERROR(_init(state, profile));
+    SCOPED_TIMER(_profile->total_time_counter());
+    SCOPED_TIMER(_open_timer);
+    SCOPED_CONSUME_MEM_TRACKER(_mem_tracker.get());
+    signal::set_signal_task_id(_load_id);
+
+    _build_tablet_node_mapping();
+    RETURN_IF_ERROR(_open_streams(_backend_id));
+    RETURN_IF_ERROR(_init_row_distribution());
+
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_open_streams(int64_t src_id) {
+    for (auto& [dst_id, _] : _tablets_for_node) {
+        auto streams = 
ExecEnv::GetInstance()->load_stream_stub_pool()->get_or_create(
+                _load_id, src_id, dst_id, _stream_per_node, _num_local_sink);
+        RETURN_IF_ERROR(_open_streams_to_backend(dst_id, *streams));
+        _streams_for_node[dst_id] = streams;
+    }
+    return Status::OK();
+}
+
+Status VTabletWriterV2::_open_streams_to_backend(int64_t dst_id,
+                                                 
::doris::stream_load::LoadStreams& streams) {
+    auto node_info = _nodes_info->find_node(dst_id);
+    if (node_info == nullptr) {
+        return Status::InternalError("Unknown node {} in tablet location", 
dst_id);
+    }
+    // get tablet schema from each backend only in the 1st stream
+    for (auto& stream : streams.streams() | std::ranges::views::take(1)) {
+        const std::vector<PTabletID>& tablets_for_schema = 
_indexes_from_node[node_info->id];
+        
RETURN_IF_ERROR(stream->open(_state->exec_env()->brpc_internal_client_cache(), 
*node_info,
+                                     _txn_id, *_schema, tablets_for_schema, 
_total_streams,
+                                     _state->enable_profile()));
+    }
+    // for the rest streams, open without getting tablet schema
+    for (auto& stream : streams.streams() | std::ranges::views::drop(1)) {
+        
RETURN_IF_ERROR(stream->open(_state->exec_env()->brpc_internal_client_cache(), 
*node_info,
+                                     _txn_id, *_schema, {}, _total_streams,
+                                     _state->enable_profile()));
+    }
+    return Status::OK();
+}
+
+void VTabletWriterV2::_build_tablet_node_mapping() {

Review Comment:
   warning: method '_build_tablet_node_mapping' can be made static 
[readability-convert-member-functions-to-static]
   
   be/src/vec/sink/writer/vtablet_writer_v2.h:132:
   ```diff
   -     void _build_tablet_node_mapping();
   +     static void _build_tablet_node_mapping();
   ```
   



##########
be/src/vec/sink/writer/vtablet_writer_v2.cpp:
##########
@@ -0,0 +1,551 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include <brpc/uri.h>
+#include <bthread/bthread.h>
+#include <fmt/format.h>
+#include <gen_cpp/DataSinks_types.h>
+#include <gen_cpp/Descriptors_types.h>
+#include <gen_cpp/Metrics_types.h>
+#include <gen_cpp/Types_types.h>
+#include <gen_cpp/internal_service.pb.h>
+
+#include <algorithm>
+#include <execution>
+#include <mutex>
+#include <ranges>
+#include <string>
+#include <unordered_map>
+
+#include "common/compiler_util.h" // IWYU pragma: keep
+#include "common/logging.h"
+#include "common/object_pool.h"
+#include "common/signal_handler.h"
+#include "common/status.h"
+#include "exec/tablet_info.h"
+#include "olap/delta_writer_v2.h"
+#include "runtime/descriptors.h"
+#include "runtime/exec_env.h"
+#include "runtime/runtime_state.h"
+#include "runtime/thread_context.h"
+#include "service/brpc.h"
+#include "util/brpc_client_cache.h"
+#include "util/doris_metrics.h"
+#include "util/network_util.h"
+#include "util/threadpool.h"
+#include "util/thrift_util.h"
+#include "util/uid_util.h"
+#include "vec/core/block.h"
+#include "vec/exprs/vexpr.h"
+#include "vec/sink/delta_writer_v2_pool.h"
+#include "vec/sink/load_stream_stub.h"
+#include "vec/sink/load_stream_stub_pool.h"
+#include "vec/sink/vtablet_block_convertor.h"
+#include "vec/sink/vtablet_finder.h"
+#include "vec/sink/writer/vtablet_writer_v2.h"
+
+namespace doris {
+class TExpr;
+
+namespace vectorized {
+
+VTabletWriterV2::VTabletWriterV2(const TDataSink& t_sink, const 
VExprContextSPtrs& output_exprs)
+        : AsyncResultWriter(output_exprs), _t_sink(t_sink) {
+    DCHECK(t_sink.__isset.olap_table_sink);
+    //auto& table_sink = t_sink.olap_table_sink;
+    //_db_id = table_sink.db_id;
+    //_table_id = table_sink.table_id;
+    //_txn_id = table_sink.txn_id;
+}
+
+VTabletWriterV2::~VTabletWriterV2() = default;
+
+Status VTabletWriterV2::on_partitions_created(TCreatePartitionResult* result) {
+    // add new tablet locations. it will use by address. so add to pool
+    auto* new_locations = _pool->add(new 
std::vector<TTabletLocation>(result->tablets));
+    _location->add_locations(*new_locations);
+
+    // update new node info
+    _nodes_info->add_nodes(result->nodes);
+
+    // incremental open stream
+    RETURN_IF_ERROR(_incremental_open_streams(result->partitions));
+
+    return Status::OK();
+}
+
+static Status on_partitions_created(void* writer, TCreatePartitionResult* 
result) {
+    return 
static_cast<VTabletWriterV2*>(writer)->on_partitions_created(result);
+}
+
+Status VTabletWriterV2::_incremental_open_streams(

Review Comment:
   warning: method '_incremental_open_streams' can be made static 
[readability-convert-member-functions-to-static]
   
   ```suggestion
   static Status VTabletWriterV2::_incremental_open_streams(
   ```
   



##########
be/src/vec/sink/writer/vtablet_writer_v2.cpp:
##########
@@ -0,0 +1,551 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include <brpc/uri.h>

Review Comment:
   warning: 'brpc/uri.h' file not found [clang-diagnostic-error]
   ```cpp
   #include <brpc/uri.h>
            ^
   ```
   



##########
be/src/vec/sink/writer/vtablet_writer_v2.h:
##########
@@ -0,0 +1,234 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+#include <brpc/controller.h>
+#include <bthread/types.h>
+#include <butil/errno.h>
+#include <fmt/format.h>
+#include <gen_cpp/PaloInternalService_types.h>
+#include <gen_cpp/Types_types.h>
+#include <gen_cpp/internal_service.pb.h>
+#include <gen_cpp/types.pb.h>
+#include <glog/logging.h>
+#include <google/protobuf/stubs/callback.h>
+#include <stddef.h>
+#include <stdint.h>

Review Comment:
   warning: inclusion of deprecated C++ header 'stdint.h'; consider using 
'cstdint' instead [modernize-deprecated-headers]
   
   ```suggestion
   #include <cstdint>
   ```
   



##########
be/src/vec/sink/writer/vtablet_writer_v2.h:
##########
@@ -0,0 +1,234 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+#include <brpc/controller.h>

Review Comment:
   warning: 'brpc/controller.h' file not found [clang-diagnostic-error]
   ```cpp
   #include <brpc/controller.h>
            ^
   ```
   



##########
be/src/vec/sink/writer/vtablet_writer_v2.h:
##########
@@ -0,0 +1,234 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+#include <brpc/controller.h>
+#include <bthread/types.h>
+#include <butil/errno.h>
+#include <fmt/format.h>
+#include <gen_cpp/PaloInternalService_types.h>
+#include <gen_cpp/Types_types.h>
+#include <gen_cpp/internal_service.pb.h>
+#include <gen_cpp/types.pb.h>
+#include <glog/logging.h>
+#include <google/protobuf/stubs/callback.h>
+#include <stddef.h>

Review Comment:
   warning: inclusion of deprecated C++ header 'stddef.h'; consider using 
'cstddef' instead [modernize-deprecated-headers]
   
   ```suggestion
   #include <cstddef>
   ```
   



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