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be/src/exec/schema_scanner/schema_file_cache_statistics.cpp
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| // 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. | ||
|
|
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| #include "exec/schema_scanner/schema_file_cache_statistics.h" | ||
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| #include "io/cache/block_file_cache_factory.h" | ||
| #include "runtime/exec_env.h" | ||
| #include "runtime/runtime_state.h" | ||
| #include "vec/common/string_ref.h" | ||
| #include "vec/core/block.h" | ||
| #include "vec/data_types/data_type_factory.hpp" | ||
|
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| namespace doris { | ||
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| std::vector<SchemaScanner::ColumnDesc> SchemaFileCacheStatisticsScanner::_s_tbls_columns = { | ||
| // name, type, size | ||
| {"BE_ID", TYPE_BIGINT, sizeof(int64_t), false}, | ||
| {"BE_IP", TYPE_STRING, sizeof(StringRef), false}, | ||
| {"CACHE_PATH", TYPE_STRING, sizeof(StringRef), false}, | ||
| {"METRIC_NAME", TYPE_STRING, sizeof(StringRef), false}, | ||
| {"METRIC_VALUE", TYPE_STRING, sizeof(StringRef), false}}; | ||
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| SchemaFileCacheStatisticsScanner::SchemaFileCacheStatisticsScanner() | ||
| : SchemaScanner(_s_tbls_columns, TSchemaTableType::SCH_FILE_CACHE_STATISTICS) {} | ||
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| SchemaFileCacheStatisticsScanner::~SchemaFileCacheStatisticsScanner() {} | ||
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| Status SchemaFileCacheStatisticsScanner::start(RuntimeState* state) { | ||
| _block_rows_limit = state->batch_size(); | ||
| return Status::OK(); | ||
| } | ||
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| Status SchemaFileCacheStatisticsScanner::get_next_block_internal(vectorized::Block* block, | ||
| bool* eos) { | ||
| if (!_is_init) { | ||
| return Status::InternalError("Used before initialized."); | ||
| } | ||
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| if (nullptr == block || nullptr == eos) { | ||
| return Status::InternalError("input pointer is nullptr."); | ||
| } | ||
|
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| if (_stats_block == nullptr) { | ||
| _stats_block = vectorized::Block::create_unique(); | ||
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| for (int i = 0; i < _s_tbls_columns.size(); ++i) { | ||
| TypeDescriptor descriptor(_s_tbls_columns[i].type); | ||
| auto data_type = | ||
| vectorized::DataTypeFactory::instance().create_data_type(descriptor, true); | ||
| _stats_block->insert(vectorized::ColumnWithTypeAndName( | ||
| data_type->create_column(), data_type, _s_tbls_columns[i].name)); | ||
| } | ||
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| _stats_block->reserve(_block_rows_limit); | ||
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| ExecEnv::GetInstance()->file_cache_factory()->get_cache_stats_block(_stats_block.get()); | ||
| _total_rows = _stats_block->rows(); | ||
| } | ||
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| if (_row_idx == _total_rows) { | ||
| *eos = true; | ||
| return Status::OK(); | ||
| } | ||
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| int current_batch_rows = std::min(_block_rows_limit, _total_rows - _row_idx); | ||
| vectorized::MutableBlock mblock = vectorized::MutableBlock::build_mutable_block(block); | ||
| RETURN_IF_ERROR(mblock.add_rows(_stats_block.get(), _row_idx, current_batch_rows)); | ||
| _row_idx += current_batch_rows; | ||
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| *eos = _row_idx == _total_rows; | ||
| return Status::OK(); | ||
| } | ||
|
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| } // namespace doris |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| // 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. | ||
|
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| #pragma once | ||
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| #include <vector> | ||
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| #include "common/status.h" | ||
| #include "exec/schema_scanner.h" | ||
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| namespace doris { | ||
| class RuntimeState; | ||
| namespace vectorized { | ||
| class Block; | ||
| } // namespace vectorized | ||
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| class SchemaFileCacheStatisticsScanner : public SchemaScanner { | ||
| ENABLE_FACTORY_CREATOR(SchemaFileCacheStatisticsScanner); | ||
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| public: | ||
| SchemaFileCacheStatisticsScanner(); | ||
| ~SchemaFileCacheStatisticsScanner() override; | ||
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| Status start(RuntimeState* state) override; | ||
| Status get_next_block_internal(vectorized::Block* block, bool* eos) override; | ||
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| static std::vector<SchemaScanner::ColumnDesc> _s_tbls_columns; | ||
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| private: | ||
| int _block_rows_limit = 4096; | ||
| int _row_idx = 0; | ||
| int _total_rows = 0; | ||
| std::unique_ptr<vectorized::Block> _stats_block = nullptr; | ||
| }; | ||
| }; // namespace doris |
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