github-actions[bot] commented on code in PR #16990:
URL: https://github.com/apache/doris/pull/16990#discussion_r1122889021


##########
be/src/io/hdfs_builder.h:
##########
@@ -31,13 +31,20 @@ const std::string KERBEROS_KEYTAB = 
"hadoop.kerberos.keytab";
 const std::string TICKET_CACHE_PATH = "/tmp/krb5cc_doris_";
 
 class HDFSCommonBuilder {
-    friend HDFSCommonBuilder createHDFSBuilder(const THdfsParams& hdfsParams);
-    friend HDFSCommonBuilder createHDFSBuilder(
-            const std::map<std::string, std::string>& properties);
+    friend Status createHDFSBuilder(const THdfsParams& hdfsParams, 
HDFSCommonBuilder* builder);
+    friend Status createHDFSBuilder(const std::map<std::string, std::string>& 
properties,
+                                    HDFSCommonBuilder* builder);
 
 public:
-    HDFSCommonBuilder() : hdfs_builder(hdfsNewBuilder()) {}
-    ~HDFSCommonBuilder() { hdfsFreeBuilder(hdfs_builder); }
+    HDFSCommonBuilder() {}

Review Comment:
   warning: use '= default' to define a trivial default constructor 
[modernize-use-equals-default]
   
   ```suggestion
       HDFSCommonBuilder() = default;
   ```
   



##########
be/src/olap/tablet.cpp:
##########
@@ -420,6 +372,7 @@ Status Tablet::modify_rowsets(std::vector<RowsetSharedPtr>& 
to_add,
 }
 
 void Tablet::add_rowsets(const std::vector<RowsetSharedPtr>& to_add) {
+    if (to_add.empty()) return;

Review Comment:
   warning: statement should be inside braces 
[readability-braces-around-statements]
   
   ```suggestion
       if (to_add.empty()) { return;
   }
   ```
   



##########
be/src/olap/rowset/segcompaction.h:
##########
@@ -0,0 +1,69 @@
+// 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 <stdint.h>
+
+#include <ctime> // time
+#include <memory>
+#include <sstream>
+
+#include "common/status.h"
+#include "olap/merger.h"
+#include "olap/rowset/rowset_writer.h"
+#include "segment_v2/segment.h"
+#include "segment_v2/segment_writer.h"
+#include "vec/olap/vertical_block_reader.h"
+
+namespace doris {
+using SegCompactionCandidates = std::vector<segment_v2::SegmentSharedPtr>;
+using SegCompactionCandidatesSharedPtr = 
std::shared_ptr<SegCompactionCandidates>;
+
+class BetaRowsetWriter;
+
+class SegcompactionWorker {
+    friend class BetaRowsetWriter;
+
+public:
+    SegcompactionWorker(BetaRowsetWriter* writer) { _writer = writer; }
+
+    void compact_segments(SegCompactionCandidatesSharedPtr segments);
+
+    io::FileWriterPtr& get_file_writer() { return _file_writer; }
+
+private:
+    Status _create_segment_writer_for_segcompaction(
+            std::unique_ptr<segment_v2::SegmentWriter>* writer, uint64_t 
begin, uint64_t end);
+    Status _get_segcompaction_reader(SegCompactionCandidatesSharedPtr segments,
+                                     TabletSharedPtr tablet, 
std::shared_ptr<Schema> schema,
+                                     OlapReaderStatistics* stat,
+                                     vectorized::RowSourcesBuffer& 
row_sources_buf, bool is_key,
+                                     std::vector<uint32_t>& return_columns,
+                                     
std::unique_ptr<vectorized::VerticalBlockReader>* reader);
+    std::unique_ptr<segment_v2::SegmentWriter> 
_create_segcompaction_writer(uint64_t begin,
+                                                                            
uint64_t end);
+    Status _delete_original_segments(uint32_t begin, uint32_t end);
+    Status _check_correctness(OlapReaderStatistics& reader_stat, 
Merger::Statistics& merger_stat,
+                              uint64_t begin, uint64_t end);
+    Status _do_compact_segments(SegCompactionCandidatesSharedPtr segments);
+
+private:

Review Comment:
   warning: redundant access specifier has the same accessibility as the 
previous access specifier [readability-redundant-access-specifiers]
   
   ```suggestion
   
   ```
   **be/src/olap/rowset/segcompaction.h:47:** previously declared here
   ```cpp
   private:
   ^
   ```
   



##########
be/src/runtime/memory/mem_tracker.h:
##########
@@ -43,6 +43,50 @@ class MemTracker {
         int64_t peak_consumption = 0;
     };
 
+    // A counter that keeps track of the current and peak value seen.
+    // Relaxed ordering, not accurate in real time.
+    class MemCounter {
+    public:
+        MemCounter() : _current_value(0), _peak_value(0) {}
+
+        void add(int64_t delta) {
+            _current_value.fetch_add(delta, std::memory_order_relaxed);
+            update_peak();
+        }
+
+        void add_no_update_peak(int64_t delta) {
+            _current_value.fetch_add(delta, std::memory_order_relaxed);
+        }
+
+        bool try_add(int64_t delta, int64_t max) {
+            if (UNLIKELY(_current_value.load(std::memory_order_relaxed) + 
delta > max))
+                return false;

Review Comment:
   warning: statement should be inside braces 
[readability-braces-around-statements]
   
   ```suggestion
               if (UNLIKELY(_current_value.load(std::memory_order_relaxed) + 
delta > max)) {
                   return false;
   }
   ```
   



##########
be/src/olap/tablet.cpp:
##########
@@ -431,6 +384,7 @@
 }
 
 void Tablet::delete_rowsets(const std::vector<RowsetSharedPtr>& to_delete, 
bool move_to_stale) {
+    if (to_delete.empty()) return;

Review Comment:
   warning: statement should be inside braces 
[readability-braces-around-statements]
   
   ```suggestion
       if (to_delete.empty()) { return;
   }
   ```
   



##########
be/test/olap/segcompaction_test.cpp:
##########
@@ -184,6 +186,27 @@
         rowset_writer_context->tablet_schema = tablet_schema;
         rowset_writer_context->version.first = 10;
         rowset_writer_context->version.second = 10;
+
+#if 0
+        TCreateTabletReq req;
+        req.table_id =
+        req.tablet_id =
+        req.tablet_scheme =
+        req.partition_id =
+        l_engine->create_tablet(req);
+        rowset_writer_context->tablet = 
l_engine->tablet_manager()->get_tablet(TTabletId tablet_id);
+#endif
+        std::shared_ptr<DataDir> data_dir = 
std::make_shared<DataDir>(lTestDir);
+        TabletMetaSharedPtr tablet_meta = std::make_shared<TabletMeta>();
+        tablet_meta->_tablet_id = 1;
+        tablet_meta->_schema = tablet_schema;

Review Comment:
   warning: '_schema' is a private member of 'doris::TabletMeta' 
[clang-diagnostic-error]
   ```cpp
           tablet_meta->_schema = tablet_schema;
                        ^
   ```
   **be/src/olap/tablet_meta.h:228:** declared private here
   ```cpp
       TabletSchemaSPtr _schema;
                        ^
   ```
   



##########
be/test/olap/segcompaction_test.cpp:
##########
@@ -200,12 +223,124 @@
     std::unique_ptr<DataDir> _data_dir;
 };
 
+TEST_F(SegCompactionTest, SegCompactionThenRead) {
+    config::enable_segcompaction = true;
+    config::enable_storage_vectorization = true;
+    Status s;
+    TabletSchemaSPtr tablet_schema = std::make_shared<TabletSchema>();
+    create_tablet_schema(tablet_schema, DUP_KEYS);
+
+    RowsetSharedPtr rowset;
+    const int num_segments = 15;
+    const uint32_t rows_per_segment = 4096;
+    config::segcompaction_small_threshold = 6000; // set threshold above
+                                                  // rows_per_segment
+    config::segcompaction_threshold_segment_num = 10;
+    std::vector<uint32_t> segment_num_rows;
+    { // write `num_segments * rows_per_segment` rows to rowset
+        RowsetWriterContext writer_context;
+        create_rowset_writer_context(10047, tablet_schema, &writer_context);
+
+        std::unique_ptr<RowsetWriter> rowset_writer;
+        s = RowsetFactory::create_rowset_writer(writer_context, false, 
&rowset_writer);
+        EXPECT_EQ(Status::OK(), s);
+
+        RowCursor input_row;
+        input_row.init(tablet_schema);
+
+        // for segment "i", row "rid"
+        // k1 := rid*10 + i
+        // k2 := k1 * 10
+        // k3 := rid
+        for (int i = 0; i < num_segments; ++i) {
+            MemPool mem_pool;
+            for (int rid = 0; rid < rows_per_segment; ++rid) {
+                uint32_t k1 = rid * 100 + i;
+                uint32_t k2 = i;
+                uint32_t k3 = rid;
+                input_row.set_field_content(0, reinterpret_cast<char*>(&k1), 
&mem_pool);

Review Comment:
   warning: no member named 'set_field_content' in 'doris::RowCursor' 
[clang-diagnostic-error]
   ```cpp
                   input_row.set_field_content(0, reinterpret_cast<char*>(&k1), 
&mem_pool);
                             ^
   ```
   



##########
be/test/olap/segcompaction_test.cpp:
##########
@@ -200,12 +223,124 @@
     std::unique_ptr<DataDir> _data_dir;
 };
 
+TEST_F(SegCompactionTest, SegCompactionThenRead) {
+    config::enable_segcompaction = true;
+    config::enable_storage_vectorization = true;
+    Status s;
+    TabletSchemaSPtr tablet_schema = std::make_shared<TabletSchema>();
+    create_tablet_schema(tablet_schema, DUP_KEYS);
+
+    RowsetSharedPtr rowset;
+    const int num_segments = 15;
+    const uint32_t rows_per_segment = 4096;
+    config::segcompaction_small_threshold = 6000; // set threshold above
+                                                  // rows_per_segment
+    config::segcompaction_threshold_segment_num = 10;
+    std::vector<uint32_t> segment_num_rows;
+    { // write `num_segments * rows_per_segment` rows to rowset
+        RowsetWriterContext writer_context;
+        create_rowset_writer_context(10047, tablet_schema, &writer_context);
+
+        std::unique_ptr<RowsetWriter> rowset_writer;
+        s = RowsetFactory::create_rowset_writer(writer_context, false, 
&rowset_writer);
+        EXPECT_EQ(Status::OK(), s);
+
+        RowCursor input_row;
+        input_row.init(tablet_schema);
+
+        // for segment "i", row "rid"
+        // k1 := rid*10 + i
+        // k2 := k1 * 10
+        // k3 := rid
+        for (int i = 0; i < num_segments; ++i) {
+            MemPool mem_pool;
+            for (int rid = 0; rid < rows_per_segment; ++rid) {
+                uint32_t k1 = rid * 100 + i;
+                uint32_t k2 = i;
+                uint32_t k3 = rid;
+                input_row.set_field_content(0, reinterpret_cast<char*>(&k1), 
&mem_pool);
+                input_row.set_field_content(1, reinterpret_cast<char*>(&k2), 
&mem_pool);
+                input_row.set_field_content(2, reinterpret_cast<char*>(&k3), 
&mem_pool);

Review Comment:
   warning: no member named 'set_field_content' in 'doris::RowCursor' 
[clang-diagnostic-error]
   ```cpp
                   input_row.set_field_content(2, reinterpret_cast<char*>(&k3), 
&mem_pool);
                             ^
   ```
   



##########
be/test/olap/segcompaction_test.cpp:
##########
@@ -184,6 +186,27 @@
         rowset_writer_context->tablet_schema = tablet_schema;
         rowset_writer_context->version.first = 10;
         rowset_writer_context->version.second = 10;
+
+#if 0
+        TCreateTabletReq req;
+        req.table_id =
+        req.tablet_id =
+        req.tablet_scheme =
+        req.partition_id =
+        l_engine->create_tablet(req);
+        rowset_writer_context->tablet = 
l_engine->tablet_manager()->get_tablet(TTabletId tablet_id);
+#endif
+        std::shared_ptr<DataDir> data_dir = 
std::make_shared<DataDir>(lTestDir);
+        TabletMetaSharedPtr tablet_meta = std::make_shared<TabletMeta>();
+        tablet_meta->_tablet_id = 1;
+        tablet_meta->_schema = tablet_schema;
+        auto tablet = std::make_shared<Tablet>(tablet_meta, data_dir.get(), 
"test_str");
+        char* tmp_str = (char*)malloc(20);
+        strncpy(tmp_str, "test_tablet_name", 20);
+
+        tablet->_full_name = tmp_str;

Review Comment:
   warning: '_full_name' is a protected member of 'doris::BaseTablet' 
[clang-diagnostic-error]
   ```cpp
           tablet->_full_name = tmp_str;
                   ^
   ```
   **be/src/olap/base_tablet.h:84:** declared protected here
   ```cpp
       std::string _full_name;
                   ^
   ```
   



##########
be/test/olap/segcompaction_test.cpp:
##########
@@ -200,12 +223,124 @@
     std::unique_ptr<DataDir> _data_dir;
 };
 
+TEST_F(SegCompactionTest, SegCompactionThenRead) {
+    config::enable_segcompaction = true;
+    config::enable_storage_vectorization = true;
+    Status s;
+    TabletSchemaSPtr tablet_schema = std::make_shared<TabletSchema>();
+    create_tablet_schema(tablet_schema, DUP_KEYS);
+
+    RowsetSharedPtr rowset;
+    const int num_segments = 15;
+    const uint32_t rows_per_segment = 4096;
+    config::segcompaction_small_threshold = 6000; // set threshold above
+                                                  // rows_per_segment
+    config::segcompaction_threshold_segment_num = 10;
+    std::vector<uint32_t> segment_num_rows;
+    { // write `num_segments * rows_per_segment` rows to rowset
+        RowsetWriterContext writer_context;
+        create_rowset_writer_context(10047, tablet_schema, &writer_context);
+
+        std::unique_ptr<RowsetWriter> rowset_writer;
+        s = RowsetFactory::create_rowset_writer(writer_context, false, 
&rowset_writer);
+        EXPECT_EQ(Status::OK(), s);
+
+        RowCursor input_row;
+        input_row.init(tablet_schema);
+
+        // for segment "i", row "rid"
+        // k1 := rid*10 + i
+        // k2 := k1 * 10
+        // k3 := rid
+        for (int i = 0; i < num_segments; ++i) {
+            MemPool mem_pool;
+            for (int rid = 0; rid < rows_per_segment; ++rid) {
+                uint32_t k1 = rid * 100 + i;
+                uint32_t k2 = i;
+                uint32_t k3 = rid;
+                input_row.set_field_content(0, reinterpret_cast<char*>(&k1), 
&mem_pool);
+                input_row.set_field_content(1, reinterpret_cast<char*>(&k2), 
&mem_pool);

Review Comment:
   warning: no member named 'set_field_content' in 'doris::RowCursor' 
[clang-diagnostic-error]
   ```cpp
                   input_row.set_field_content(1, reinterpret_cast<char*>(&k2), 
&mem_pool);
                             ^
   ```
   



##########
be/test/olap/segcompaction_test.cpp:
##########
@@ -200,12 +223,124 @@
     std::unique_ptr<DataDir> _data_dir;
 };
 
+TEST_F(SegCompactionTest, SegCompactionThenRead) {
+    config::enable_segcompaction = true;
+    config::enable_storage_vectorization = true;
+    Status s;
+    TabletSchemaSPtr tablet_schema = std::make_shared<TabletSchema>();
+    create_tablet_schema(tablet_schema, DUP_KEYS);
+
+    RowsetSharedPtr rowset;
+    const int num_segments = 15;
+    const uint32_t rows_per_segment = 4096;
+    config::segcompaction_small_threshold = 6000; // set threshold above
+                                                  // rows_per_segment
+    config::segcompaction_threshold_segment_num = 10;
+    std::vector<uint32_t> segment_num_rows;
+    { // write `num_segments * rows_per_segment` rows to rowset
+        RowsetWriterContext writer_context;
+        create_rowset_writer_context(10047, tablet_schema, &writer_context);
+
+        std::unique_ptr<RowsetWriter> rowset_writer;
+        s = RowsetFactory::create_rowset_writer(writer_context, false, 
&rowset_writer);
+        EXPECT_EQ(Status::OK(), s);
+
+        RowCursor input_row;
+        input_row.init(tablet_schema);
+
+        // for segment "i", row "rid"
+        // k1 := rid*10 + i
+        // k2 := k1 * 10
+        // k3 := rid
+        for (int i = 0; i < num_segments; ++i) {
+            MemPool mem_pool;
+            for (int rid = 0; rid < rows_per_segment; ++rid) {
+                uint32_t k1 = rid * 100 + i;
+                uint32_t k2 = i;
+                uint32_t k3 = rid;
+                input_row.set_field_content(0, reinterpret_cast<char*>(&k1), 
&mem_pool);
+                input_row.set_field_content(1, reinterpret_cast<char*>(&k2), 
&mem_pool);
+                input_row.set_field_content(2, reinterpret_cast<char*>(&k3), 
&mem_pool);
+                s = rowset_writer->add_row(input_row);

Review Comment:
   warning: no member named 'add_row' in 'doris::RowsetWriter' 
[clang-diagnostic-error]
   ```cpp
                   s = rowset_writer->add_row(input_row);
                                      ^
   ```
   



##########
be/src/vec/functions/array/function_array_apply.cpp:
##########
@@ -0,0 +1,219 @@
+// 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 <vec/columns/column_array.h>
+#include <vec/columns/column_nullable.h>
+#include <vec/columns/columns_number.h>
+#include <vec/data_types/data_type_array.h>
+#include <vec/data_types/data_type_number.h>
+#include <vec/functions/function.h>
+#include <vec/functions/function_helpers.h>
+#include <vec/functions/simple_function_factory.h>
+
+namespace doris::vectorized {
+
+// array_apply([1, 2, 3, 10], ">=", 5) -> [10]
+// This function is temporary, use it to meet the requirement before 
implementing the lambda function.
+class FunctionArrayApply : public IFunction {
+public:
+    static constexpr auto name = "array_apply";
+
+    static FunctionPtr create() { return 
std::make_shared<FunctionArrayApply>(); }
+
+    String get_name() const override { return name; }
+
+    size_t get_number_of_arguments() const override { return 3; }
+
+    DataTypePtr get_return_type_impl(const DataTypes& arguments) const 
override {
+        DCHECK(is_array(arguments[0]))
+                << "first argument for function: " << name << " should be 
DataTypeArray"
+                << " and arguments[0] is " << arguments[0]->get_name();
+        return arguments[0];
+    }
+
+    Status execute_impl(FunctionContext* context, Block& block, const 
ColumnNumbers& arguments,
+                        size_t result, size_t input_rows_count) override {
+        ColumnPtr src_column =
+                
block.get_by_position(arguments[0]).column->convert_to_full_column_if_const();
+        const auto& src_column_array = 
check_and_get_column<ColumnArray>(*src_column);
+        if (!src_column_array) {
+            return Status::RuntimeError(
+                    fmt::format("unsupported types for function {}({})", 
get_name(),
+                                
block.get_by_position(arguments[0]).type->get_name()));
+        }
+        const auto& src_offsets = src_column_array->get_offsets();
+        const auto* src_nested_column = &src_column_array->get_data();
+        DCHECK(src_nested_column != nullptr);
+
+        DataTypePtr src_column_type = block.get_by_position(arguments[0]).type;
+        auto nested_type = assert_cast<const 
DataTypeArray&>(*src_column_type).get_nested_type();
+        const std::string& condition =
+                
block.get_by_position(arguments[1]).column->get_data_at(0).to_string();
+        if (!is_column_const(*block.get_by_position(arguments[2]).column)) {
+            return Status::RuntimeError(
+                    "execute failed or unsupported column, only support const 
column");
+        }
+        const ColumnConst& rhs_value_column =
+                static_cast<const 
ColumnConst&>(*block.get_by_position(arguments[2]).column.get());
+        ColumnPtr result_ptr;
+        RETURN_IF_ERROR(_execute(*src_nested_column, nested_type, src_offsets, 
condition,
+                                 rhs_value_column, &result_ptr));
+        block.replace_by_position(result, std::move(result_ptr));
+        return Status::OK();
+    }
+
+private:
+    enum class ApplyOp {
+        UNKNOWN = 0,
+        EQ = 1,
+        NE = 2,
+        LT = 3,
+        LE = 4,
+        GT = 5,
+        GE = 6,
+    };
+    template <typename T, ApplyOp op>
+    bool apply(T data, T comp) {
+        if constexpr (op == ApplyOp::EQ) {
+            return data == comp;
+        }
+        if constexpr (op == ApplyOp::NE) {
+            return data != comp;
+        }
+        if constexpr (op == ApplyOp::LT) {
+            return data < comp;
+        }
+        if constexpr (op == ApplyOp::LE) {
+            return data <= comp;
+        }
+        if constexpr (op == ApplyOp::GT) {
+            return data > comp;
+        }
+        if constexpr (op == ApplyOp::GE) {
+            return data >= comp;
+        }
+        __builtin_unreachable();
+    }
+
+    template <typename T, ApplyOp op>
+    ColumnPtr _apply_internal(const IColumn& src_column, const 
ColumnArray::Offsets64& src_offsets,
+                              const ColumnConst& cmp) {
+        T rhs_val = *reinterpret_cast<const T*>(cmp.get_data_at(0).data);
+        auto column_filter = ColumnUInt8::create(src_column.size(), 0);
+        auto& column_filter_data = column_filter->get_data();
+        const char* src_column_data_ptr = nullptr;
+        if (!src_column.is_nullable()) {
+            src_column_data_ptr = src_column.get_raw_data().data;
+        } else {
+            src_column_data_ptr = 
check_and_get_column<ColumnNullable>(src_column)
+                                          ->get_nested_column()
+                                          .get_raw_data()
+                                          .data;
+        }
+        for (size_t i = 0; i < src_column.size(); ++i) {
+            T lhs_val = *reinterpret_cast<const T*>(src_column_data_ptr);
+            if (apply<T, op>(lhs_val, rhs_val)) {
+                column_filter_data[i] = 1;
+            }
+            src_column_data_ptr += sizeof(T);
+        }
+        const IColumn::Filter& filter = column_filter_data;
+        ColumnPtr filtered = src_column.filter(filter, src_column.size());
+        auto column_offsets = 
ColumnArray::ColumnOffsets::create(src_offsets.size());
+        ColumnArray::Offsets64& dst_offsets = column_offsets->get_data();
+        size_t in_pos = 0;
+        size_t out_pos = 0;
+        for (size_t i = 0; i < src_offsets.size(); ++i) {
+            for (; in_pos < src_offsets[i]; ++in_pos) {
+                if (filter[in_pos]) ++out_pos;

Review Comment:
   warning: statement should be inside braces 
[readability-braces-around-statements]
   
   ```suggestion
                   if (filter[in_pos]) { ++out_pos;
   }
   ```
   



##########
be/test/olap/segcompaction_test.cpp:
##########
@@ -184,6 +186,27 @@ class SegCompactionTest : public testing::Test {
         rowset_writer_context->tablet_schema = tablet_schema;
         rowset_writer_context->version.first = 10;
         rowset_writer_context->version.second = 10;
+
+#if 0
+        TCreateTabletReq req;
+        req.table_id =
+        req.tablet_id =
+        req.tablet_scheme =
+        req.partition_id =
+        l_engine->create_tablet(req);
+        rowset_writer_context->tablet = 
l_engine->tablet_manager()->get_tablet(TTabletId tablet_id);
+#endif
+        std::shared_ptr<DataDir> data_dir = 
std::make_shared<DataDir>(lTestDir);
+        TabletMetaSharedPtr tablet_meta = std::make_shared<TabletMeta>();
+        tablet_meta->_tablet_id = 1;

Review Comment:
   warning: '_tablet_id' is a private member of 'doris::TabletMeta' 
[clang-diagnostic-error]
   ```cpp
           tablet_meta->_tablet_id = 1;
                        ^
   ```
   **be/src/olap/tablet_meta.h:216:** declared private here
   ```cpp
       int64_t _tablet_id = 0;
               ^
   ```
   



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