0d48a3961c
NOTE: This patch would modify all Backend's data. And this will cause a very long time to restart be. So if you want to interferer your product environment, you should upgrade backend one by one. 1. Refactoring be is to clarify the structure the codes. 2. Use unique id to indicate a rowset. Nameing rowset with tablet_id and version will lead to many conflicts among compaction, clone, restore. 3. Extract an rowset interface to encapsulate rowsets with different format.
53 lines
2.1 KiB
C++
53 lines
2.1 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#ifndef DORIS_BE_SRC_OLAP_ROWSET_GRAPH_H
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#define DORIS_BE_SRC_OLAP_ROWSET_GRAPH_H
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#include "olap/olap_common.h"
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#include "olap/olap_define.h"
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#include "olap/rowset/rowset_meta.h"
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namespace doris {
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class RowsetGraph {
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public:
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OLAPStatus construct_rowset_graph(const std::vector<RowsetMetaSharedPtr>& rs_metas);
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OLAPStatus reconstruct_rowset_graph(const std::vector<RowsetMetaSharedPtr>& rs_metas);
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OLAPStatus add_version_to_graph(const Version& version);
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OLAPStatus delete_version_from_graph(const Version& version);
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OLAPStatus capture_consistent_versions(const Version& spec_version,
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std::vector<Version>* version_path) const;
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private:
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OLAPStatus _add_vertex_to_graph(int64_t vertex_value);
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// OLAP version contains two parts, [start_version, end_version]. In order
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// to construct graph, the OLAP version has two corresponding vertex, one
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// vertex's value is version.start_version, the other is
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// version.end_version + 1.
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// Use adjacency list to describe version graph.
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std::vector<Vertex> _version_graph;
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// vertex value --> vertex_index of _version_graph
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// It is easy to find vertex index according to vertex value.
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std::unordered_map<int64_t, int64_t> _vertex_index_map;
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};
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} // namespace doris
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#endif // DORIS_BE_SRC_OLAP_OLAP_ROWSET_GRAPH_H
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