koarz commented on code in PR #51282: URL: https://github.com/apache/doris/pull/51282#discussion_r2125455939
########## be/src/exec/schema_scanner/schema_tablets_scanner.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 "exec/schema_scanner/schema_tablets_scanner.h" + +#include <gen_cpp/Descriptors_types.h> +#include <gen_cpp/olap_common.pb.h> + +#include <algorithm> +#include <cstddef> +#include <cstdint> +#include <memory> +#include <string> +#include <utility> + +#include "cloud/cloud_storage_engine.h" +#include "cloud/cloud_tablet.h" +#include "cloud/cloud_tablet_mgr.h" +#include "cloud/config.h" +#include "common/status.h" +#include "olap/storage_engine.h" +#include "olap/tablet_fwd.h" +#include "olap/tablet_manager.h" +#include "runtime/define_primitive_type.h" +#include "runtime/exec_env.h" +#include "runtime/runtime_state.h" +#include "vec/common/string_ref.h" + +namespace doris { +namespace vectorized { +class Block; +} // namespace vectorized + +#include "common/compile_check_begin.h" + +std::vector<SchemaScanner::ColumnDesc> SchemaTabletsScanner::_s_tbls_columns = { + // name, type, size, is_null + {"BE_ID", TYPE_BIGINT, sizeof(int64_t), true}, + {"TABLET_ID", TYPE_BIGINT, sizeof(int64_t), true}, + {"REPLICA_ID", TYPE_BIGINT, sizeof(int64_t), true}, + {"PARTITION_ID", TYPE_BIGINT, sizeof(int64_t), true}, + {"TABLET_PATH", TYPE_STRING, sizeof(StringRef), true}, + {"TABLET_LOCAL_SIZE", TYPE_BIGINT, sizeof(int64_t), true}, + {"TABLET_REMOTE_SIZE", TYPE_BIGINT, sizeof(int64_t), true}, + {"VERSION_COUNT", TYPE_BIGINT, sizeof(int64_t), true}, + {"SEGMENT_COUNT", TYPE_BIGINT, sizeof(int64_t), true}, + {"NUM_COLUMNS", TYPE_BIGINT, sizeof(int64_t), true}, + {"ROW_SIZE", TYPE_BIGINT, sizeof(int64_t), true}, + {"COMPACTION_SCORE", TYPE_INT, sizeof(int32_t), true}, + {"COMPRESS_KIND", TYPE_STRING, sizeof(StringRef), true}, + {"IS_USED", TYPE_BOOLEAN, sizeof(bool), true}, + {"IS_ALTER_FAILED", TYPE_BOOLEAN, sizeof(bool), true}, + {"CREATE_TIME", TYPE_BIGINT, sizeof(int64_t), true}, + {"UPDATE_TIME", TYPE_BIGINT, sizeof(int64_t), true}, + {"IS_OVERLAP", TYPE_BOOLEAN, sizeof(bool), true}, +}; + +SchemaTabletsScanner::SchemaTabletsScanner() + : SchemaScanner(_s_tbls_columns, TSchemaTableType::SCH_BACKEND_TABLETS) {}; + +Status SchemaTabletsScanner::start(RuntimeState* state) { + if (!_is_init) { + return Status::InternalError("used before initialized."); + } + _backend_id = state->backend_id(); + RETURN_IF_ERROR(_get_all_tablets()); + return Status::OK(); +} + +Status SchemaTabletsScanner::_get_all_tablets() { + if (config::is_cloud_mode()) { + auto tablets = + ExecEnv::GetInstance()->storage_engine().to_cloud().tablet_mgr().get_all_tablet(); + std::ranges::for_each(tablets, [&](auto& tablet) { + _tablets.push_back(std::static_pointer_cast<BaseTablet>(tablet)); + }); + } else { + auto tablets = ExecEnv::GetInstance() + ->storage_engine() + .to_local() + .tablet_manager() + ->get_all_tablet(); + std::ranges::for_each(tablets, [&](auto& tablet) { + _tablets.push_back(std::static_pointer_cast<BaseTablet>(tablet)); + }); + } + return Status::OK(); +} + +Status SchemaTabletsScanner::get_next_block_internal(vectorized::Block* block, bool* eos) { + if (!_is_init) { + return Status::InternalError("Used before initialized."); + } + if (nullptr == block || nullptr == eos) { + return Status::InternalError("input pointer is nullptr."); + } + if (_tablets_idx >= _tablets.size()) { + *eos = true; + return Status::OK(); + } + *eos = false; + return _fill_block_impl(block); +} + +Status SchemaTabletsScanner::_fill_block_impl(vectorized::Block* block) { + SCOPED_TIMER(_fill_block_timer); + + size_t row_num = _tablets.size(); + if (row_num == 0) { + return Status::OK(); + } + + size_t fill_tablets_num = std::min(1000UL, _tablets.size() - _tablets_idx); + size_t fill_idx_begin = _tablets_idx; + size_t fill_idx_end = _tablets_idx + fill_tablets_num; + std::vector<void*> datas(fill_tablets_num); + + auto fill_column = [&](auto&& get_value, size_t column_index) { Review Comment: these part origin is like you said, but another reviewer said https://github.com/apache/doris/pull/49317/commits/7c0774201e44779cf73d34db296032a6921caadc -- This is an automated message from the Apache Git Service. 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