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7c673cae | 1 | // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. |
11fdf7f2 TL |
2 | // This source code is licensed under both the GPLv2 (found in the |
3 | // COPYING file in the root directory) and Apache 2.0 License | |
4 | // (found in the LICENSE.Apache file in the root directory). | |
7c673cae FG |
5 | // |
6 | ||
7 | #ifndef ROCKSDB_LITE | |
8 | ||
9 | #include "db/db_impl.h" | |
10 | #include "db/version_set.h" | |
11 | #include "rocksdb/db.h" | |
12 | #include "rocksdb/utilities/ldb_cmd.h" | |
13 | #include "tools/ldb_cmd_impl.h" | |
14 | #include "util/string_util.h" | |
15 | #include "util/testharness.h" | |
16 | #include "util/testutil.h" | |
17 | ||
18 | namespace rocksdb { | |
19 | ||
20 | class ReduceLevelTest : public testing::Test { | |
21 | public: | |
22 | ReduceLevelTest() { | |
11fdf7f2 | 23 | dbname_ = test::PerThreadDBPath("db_reduce_levels_test"); |
7c673cae FG |
24 | DestroyDB(dbname_, Options()); |
25 | db_ = nullptr; | |
26 | } | |
27 | ||
28 | Status OpenDB(bool create_if_missing, int levels); | |
29 | ||
30 | Status Put(const std::string& k, const std::string& v) { | |
31 | return db_->Put(WriteOptions(), k, v); | |
32 | } | |
33 | ||
34 | std::string Get(const std::string& k) { | |
35 | ReadOptions options; | |
36 | std::string result; | |
37 | Status s = db_->Get(options, k, &result); | |
38 | if (s.IsNotFound()) { | |
39 | result = "NOT_FOUND"; | |
40 | } else if (!s.ok()) { | |
41 | result = s.ToString(); | |
42 | } | |
43 | return result; | |
44 | } | |
45 | ||
46 | Status Flush() { | |
47 | if (db_ == nullptr) { | |
48 | return Status::InvalidArgument("DB not opened."); | |
49 | } | |
50 | DBImpl* db_impl = reinterpret_cast<DBImpl*>(db_); | |
51 | return db_impl->TEST_FlushMemTable(); | |
52 | } | |
53 | ||
54 | void MoveL0FileToLevel(int level) { | |
55 | DBImpl* db_impl = reinterpret_cast<DBImpl*>(db_); | |
56 | for (int i = 0; i < level; ++i) { | |
57 | ASSERT_OK(db_impl->TEST_CompactRange(i, nullptr, nullptr)); | |
58 | } | |
59 | } | |
60 | ||
61 | void CloseDB() { | |
62 | if (db_ != nullptr) { | |
63 | delete db_; | |
64 | db_ = nullptr; | |
65 | } | |
66 | } | |
67 | ||
68 | bool ReduceLevels(int target_level); | |
69 | ||
70 | int FilesOnLevel(int level) { | |
71 | std::string property; | |
72 | EXPECT_TRUE(db_->GetProperty( | |
73 | "rocksdb.num-files-at-level" + NumberToString(level), &property)); | |
74 | return atoi(property.c_str()); | |
75 | } | |
76 | ||
77 | private: | |
78 | std::string dbname_; | |
79 | DB* db_; | |
80 | }; | |
81 | ||
82 | Status ReduceLevelTest::OpenDB(bool create_if_missing, int num_levels) { | |
83 | rocksdb::Options opt; | |
84 | opt.num_levels = num_levels; | |
85 | opt.create_if_missing = create_if_missing; | |
86 | rocksdb::Status st = rocksdb::DB::Open(opt, dbname_, &db_); | |
87 | if (!st.ok()) { | |
88 | fprintf(stderr, "Can't open the db:%s\n", st.ToString().c_str()); | |
89 | } | |
90 | return st; | |
91 | } | |
92 | ||
93 | bool ReduceLevelTest::ReduceLevels(int target_level) { | |
94 | std::vector<std::string> args = rocksdb::ReduceDBLevelsCommand::PrepareArgs( | |
95 | dbname_, target_level, false); | |
96 | LDBCommand* level_reducer = LDBCommand::InitFromCmdLineArgs( | |
97 | args, Options(), LDBOptions(), nullptr, LDBCommand::SelectCommand); | |
98 | level_reducer->Run(); | |
99 | bool is_succeed = level_reducer->GetExecuteState().IsSucceed(); | |
100 | delete level_reducer; | |
101 | return is_succeed; | |
102 | } | |
103 | ||
104 | TEST_F(ReduceLevelTest, Last_Level) { | |
105 | ASSERT_OK(OpenDB(true, 4)); | |
106 | ASSERT_OK(Put("aaaa", "11111")); | |
107 | Flush(); | |
108 | MoveL0FileToLevel(3); | |
109 | ASSERT_EQ(FilesOnLevel(3), 1); | |
110 | CloseDB(); | |
111 | ||
112 | ASSERT_TRUE(ReduceLevels(3)); | |
113 | ASSERT_OK(OpenDB(true, 3)); | |
114 | ASSERT_EQ(FilesOnLevel(2), 1); | |
115 | CloseDB(); | |
116 | ||
117 | ASSERT_TRUE(ReduceLevels(2)); | |
118 | ASSERT_OK(OpenDB(true, 2)); | |
119 | ASSERT_EQ(FilesOnLevel(1), 1); | |
120 | CloseDB(); | |
121 | } | |
122 | ||
123 | TEST_F(ReduceLevelTest, Top_Level) { | |
124 | ASSERT_OK(OpenDB(true, 5)); | |
125 | ASSERT_OK(Put("aaaa", "11111")); | |
126 | Flush(); | |
127 | ASSERT_EQ(FilesOnLevel(0), 1); | |
128 | CloseDB(); | |
129 | ||
130 | ASSERT_TRUE(ReduceLevels(4)); | |
131 | ASSERT_OK(OpenDB(true, 4)); | |
132 | CloseDB(); | |
133 | ||
134 | ASSERT_TRUE(ReduceLevels(3)); | |
135 | ASSERT_OK(OpenDB(true, 3)); | |
136 | CloseDB(); | |
137 | ||
138 | ASSERT_TRUE(ReduceLevels(2)); | |
139 | ASSERT_OK(OpenDB(true, 2)); | |
140 | CloseDB(); | |
141 | } | |
142 | ||
143 | TEST_F(ReduceLevelTest, All_Levels) { | |
144 | ASSERT_OK(OpenDB(true, 5)); | |
145 | ASSERT_OK(Put("a", "a11111")); | |
146 | ASSERT_OK(Flush()); | |
147 | MoveL0FileToLevel(4); | |
148 | ASSERT_EQ(FilesOnLevel(4), 1); | |
149 | CloseDB(); | |
150 | ||
151 | ASSERT_OK(OpenDB(true, 5)); | |
152 | ASSERT_OK(Put("b", "b11111")); | |
153 | ASSERT_OK(Flush()); | |
154 | MoveL0FileToLevel(3); | |
155 | ASSERT_EQ(FilesOnLevel(3), 1); | |
156 | ASSERT_EQ(FilesOnLevel(4), 1); | |
157 | CloseDB(); | |
158 | ||
159 | ASSERT_OK(OpenDB(true, 5)); | |
160 | ASSERT_OK(Put("c", "c11111")); | |
161 | ASSERT_OK(Flush()); | |
162 | MoveL0FileToLevel(2); | |
163 | ASSERT_EQ(FilesOnLevel(2), 1); | |
164 | ASSERT_EQ(FilesOnLevel(3), 1); | |
165 | ASSERT_EQ(FilesOnLevel(4), 1); | |
166 | CloseDB(); | |
167 | ||
168 | ASSERT_OK(OpenDB(true, 5)); | |
169 | ASSERT_OK(Put("d", "d11111")); | |
170 | ASSERT_OK(Flush()); | |
171 | MoveL0FileToLevel(1); | |
172 | ASSERT_EQ(FilesOnLevel(1), 1); | |
173 | ASSERT_EQ(FilesOnLevel(2), 1); | |
174 | ASSERT_EQ(FilesOnLevel(3), 1); | |
175 | ASSERT_EQ(FilesOnLevel(4), 1); | |
176 | CloseDB(); | |
177 | ||
178 | ASSERT_TRUE(ReduceLevels(4)); | |
179 | ASSERT_OK(OpenDB(true, 4)); | |
180 | ASSERT_EQ("a11111", Get("a")); | |
181 | ASSERT_EQ("b11111", Get("b")); | |
182 | ASSERT_EQ("c11111", Get("c")); | |
183 | ASSERT_EQ("d11111", Get("d")); | |
184 | CloseDB(); | |
185 | ||
186 | ASSERT_TRUE(ReduceLevels(3)); | |
187 | ASSERT_OK(OpenDB(true, 3)); | |
188 | ASSERT_EQ("a11111", Get("a")); | |
189 | ASSERT_EQ("b11111", Get("b")); | |
190 | ASSERT_EQ("c11111", Get("c")); | |
191 | ASSERT_EQ("d11111", Get("d")); | |
192 | CloseDB(); | |
193 | ||
194 | ASSERT_TRUE(ReduceLevels(2)); | |
195 | ASSERT_OK(OpenDB(true, 2)); | |
196 | ASSERT_EQ("a11111", Get("a")); | |
197 | ASSERT_EQ("b11111", Get("b")); | |
198 | ASSERT_EQ("c11111", Get("c")); | |
199 | ASSERT_EQ("d11111", Get("d")); | |
200 | CloseDB(); | |
201 | } | |
202 | ||
203 | } | |
204 | ||
205 | int main(int argc, char** argv) { | |
206 | ::testing::InitGoogleTest(&argc, argv); | |
207 | return RUN_ALL_TESTS(); | |
208 | } | |
209 | ||
210 | #else | |
211 | #include <stdio.h> | |
212 | ||
11fdf7f2 | 213 | int main(int /*argc*/, char** /*argv*/) { |
7c673cae FG |
214 | fprintf(stderr, "SKIPPED as LDBCommand is not supported in ROCKSDB_LITE\n"); |
215 | return 0; | |
216 | } | |
217 | ||
218 | #endif // !ROCKSDB_LITE |