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[feature](metacache) add system table catalog_meta_cache_statistics #40155#40210
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| Original file line number | Diff line number | Diff line change | ||||
|---|---|---|---|---|---|---|
| @@ -0,0 +1,135 @@ | ||||||
| // 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_catalog_meta_cache_stats_scanner.h" | ||||||
| #include "runtime/client_cache.h" | ||||||
| #include "runtime/exec_env.h" | ||||||
| #include "runtime/query_context.h" | ||||||
| #include "runtime/runtime_state.h" | ||||||
| #include "util/thrift_rpc_helper.h" | ||||||
| #include "vec/common/string_ref.h" | ||||||
| #include "vec/core/block.h" | ||||||
| #include "vec/data_types/data_type_factory.hpp" | ||||||
| namespace doris { | ||||||
| std::vector<SchemaScanner::ColumnDesc> SchemaCatalogMetaCacheStatsScanner::_s_tbls_columns = { | ||||||
| {"CATALOG_NAME", TYPE_STRING, sizeof(StringRef), true}, | ||||||
| {"CACHE_NAME", TYPE_STRING, sizeof(StringRef), true}, | ||||||
| {"METRIC_NAME", TYPE_STRING, sizeof(StringRef), true}, | ||||||
| {"METRIC_VALUE", TYPE_STRING, sizeof(StringRef), true}, | ||||||
| }; | ||||||
| SchemaCatalogMetaCacheStatsScanner::SchemaCatalogMetaCacheStatsScanner() | ||||||
| : SchemaScanner(_s_tbls_columns, TSchemaTableType::SCH_CATALOG_META_CACHE_STATISTICS) {} | ||||||
| SchemaCatalogMetaCacheStatsScanner::~SchemaCatalogMetaCacheStatsScanner() {} | ||||||
Contributor There was a problem hiding this comment. warning: use '= default' to define a trivial destructor [modernize-use-equals-default]
Suggested change
| ||||||
| Status SchemaCatalogMetaCacheStatsScanner::start(RuntimeState* state) { | ||||||
| _block_rows_limit = state->batch_size(); | ||||||
| _rpc_timeout = state->execution_timeout() * 1000; | ||||||
| _fe_addr = state->get_query_ctx()->current_connect_fe; | ||||||
| return Status::OK(); | ||||||
| } | ||||||
| Status SchemaCatalogMetaCacheStatsScanner::_get_meta_cache_from_fe() { | ||||||
| TSchemaTableRequestParams schema_table_request_params; | ||||||
| for (int i = 0; i < _s_tbls_columns.size(); i++) { | ||||||
| schema_table_request_params.__isset.columns_name = true; | ||||||
| schema_table_request_params.columns_name.emplace_back(_s_tbls_columns[i].name); | ||||||
| } | ||||||
| schema_table_request_params.__set_current_user_ident(*_param->common_param->current_user_ident); | ||||||
| TFetchSchemaTableDataRequest request; | ||||||
| request.__set_schema_table_name(TSchemaTableName::CATALOG_META_CACHE_STATS); | ||||||
| request.__set_schema_table_params(schema_table_request_params); | ||||||
| TFetchSchemaTableDataResult result; | ||||||
| RETURN_IF_ERROR(ThriftRpcHelper::rpc<FrontendServiceClient>( | ||||||
| _fe_addr.hostname, _fe_addr.port, | ||||||
| [&request, &result](FrontendServiceConnection& client) { | ||||||
| client->fetchSchemaTableData(result, request); | ||||||
| }, | ||||||
| _rpc_timeout)); | ||||||
| Status status(Status::create(result.status)); | ||||||
| if (!status.ok()) { | ||||||
| LOG(WARNING) << "fetch catalog meta cache stats from FE(" << _fe_addr.hostname | ||||||
| << ") failed, errmsg=" << status; | ||||||
| return status; | ||||||
| } | ||||||
| std::vector<TRow> result_data = result.data_batch; | ||||||
| _block = vectorized::Block::create_unique(); | ||||||
| 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); | ||||||
| _block->insert(vectorized::ColumnWithTypeAndName(data_type->create_column(), data_type, | ||||||
| _s_tbls_columns[i].name)); | ||||||
| } | ||||||
| _block->reserve(_block_rows_limit); | ||||||
| if (result_data.size() > 0) { | ||||||
| int col_size = result_data[0].column_value.size(); | ||||||
| if (col_size != _s_tbls_columns.size()) { | ||||||
| return Status::InternalError<false>( | ||||||
| "catalog meta cache stats schema is not match for FE and BE"); | ||||||
| } | ||||||
| } | ||||||
| for (int i = 0; i < result_data.size(); i++) { | ||||||
| TRow row = result_data[i]; | ||||||
| for (int j = 0; j < _s_tbls_columns.size(); j++) { | ||||||
| RETURN_IF_ERROR(insert_block_column(row.column_value[j], j, _block.get(), | ||||||
| _s_tbls_columns[j].type)); | ||||||
| } | ||||||
| } | ||||||
| return Status::OK(); | ||||||
| } | ||||||
| Status SchemaCatalogMetaCacheStatsScanner::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 (_block == nullptr) { | ||||||
| RETURN_IF_ERROR(_get_meta_cache_from_fe()); | ||||||
| _total_rows = _block->rows(); | ||||||
| } | ||||||
| if (_row_idx == _total_rows) { | ||||||
| *eos = true; | ||||||
| return Status::OK(); | ||||||
| } | ||||||
| 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(_block.get(), _row_idx, current_batch_rows)); | ||||||
| _row_idx += current_batch_rows; | ||||||
| *eos = _row_idx == _total_rows; | ||||||
| return Status::OK(); | ||||||
| } | ||||||
| } // namespace doris | ||||||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| // 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 <vector> | ||
| #include "common/status.h" | ||
| #include "exec/schema_scanner.h" | ||
| namespace doris { | ||
| class RuntimeState; | ||
| namespace vectorized { | ||
| class Block; | ||
| } // namespace vectorized | ||
| class SchemaCatalogMetaCacheStatsScanner : public SchemaScanner { | ||
| ENABLE_FACTORY_CREATOR(SchemaCatalogMetaCacheStatsScanner); | ||
| public: | ||
| SchemaCatalogMetaCacheStatsScanner(); | ||
| ~SchemaCatalogMetaCacheStatsScanner() override; | ||
| Status start(RuntimeState* state) override; | ||
| Status get_next_block_internal(vectorized::Block* block, bool* eos) override; | ||
| static std::vector<SchemaScanner::ColumnDesc> _s_tbls_columns; | ||
| private: | ||
| Status _get_meta_cache_from_fe(); | ||
| TNetworkAddress _fe_addr; | ||
| int _block_rows_limit = 4096; | ||
| int _row_idx = 0; | ||
| int _total_rows = 0; | ||
| std::unique_ptr<vectorized::Block> _block = nullptr; | ||
| int _rpc_timeout = 3000; | ||
| }; | ||
| }; // namespace doris |
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warning: use '= default' to define a trivial default constructor [modernize-use-equals-default]
be/src/exec/schema_scanner/schema_catalog_meta_cache_stats_scanner.cpp:37: