[FEAT MERGE] Support index usage monitoring

unittest/share/index_usage/test_index_usage.cpp

@@ -0,0 +1,152 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#include <gtest/gtest.h>
+#define private public  // 获取私有成员
+#include "share/index_usage/ob_index_usage_info_mgr.h"
+#include "lib/utility/ob_test_util.h"
+#include "mtlenv/mock_tenant_module_env.h"
+#include "share/rc/ob_tenant_base.h"
+
+using namespace oceanbase;
+using namespace oceanbase::common;
+using namespace oceanbase::table;
+using namespace oceanbase::sql;
+using namespace oceanbase::share;
+using namespace oceanbase::storage;
+
+class TestIndexUsageInfo: public ::testing::Test
+{
+public:
+  TestIndexUsageInfo(): mgr_() {}
+  virtual ~TestIndexUsageInfo() {}
+  static void SetUpTestCase()
+  {
+    EXPECT_EQ(OB_SUCCESS, MockTenantModuleEnv::get_instance().init());
+
+    oceanbase::omt::ObTenantMeta tenant_meta;
+    uint64_t tenant_id = 1888;
+    ASSERT_EQ(OB_SUCCESS, MockTenantModuleEnv::construct_default_tenant_meta(tenant_id, tenant_meta));
+    ASSERT_EQ(OB_SUCCESS, GCTX.omt_->create_tenant(tenant_meta, false));
+  }
+  static void TearDownTestCase()
+  {
+    uint64_t tenant_id = 1888;
+    bool lock_succ = false;
+    // ASSERT_EQ(OB_SUCCESS, GCTX.omt_->remove_tenant(tenant_id, lock_succ));
+    while (OB_EAGAIN == GCTX.omt_->remove_tenant(tenant_id, lock_succ));
+
+    MockTenantModuleEnv::get_instance().destroy();
+  }
+  void SetUp()
+  {
+    mgr_.is_enabled_ = true;
+    mgr_.is_sample_mode_=false;
+    ASSERT_EQ(OB_SUCCESS, mgr_.init(1888)); // mock user tenant id
+    ASSERT_EQ(OB_SUCCESS, mgr_.start());
+  }
+  void TearDown()
+  {
+    mgr_.stop();
+    mgr_.destroy();
+  }
+  int64_t check_size() {
+    int64_t i = 0;
+    int64_t total_size = 0;
+    for (i = 0; i < mgr_.hashmap_count_; ++i) {
+      total_size += mgr_.index_usage_map_[i].size();
+    }
+    return total_size;
+  }
+private:
+  ObIndexUsageInfoMgr mgr_;
+  // disallow copy
+  DISALLOW_COPY_AND_ASSIGN(TestIndexUsageInfo);
+};
+
+TEST_F(TestIndexUsageInfo, test_init)
+{
+  ObIndexUsageInfoMgr mgr;
+  ASSERT_FALSE(mgr.is_inited_);
+  ASSERT_FALSE(mgr.report_task_.get_is_inited());
+  ASSERT_FALSE(mgr.refresh_conf_task_.get_is_inited());
+
+  ASSERT_EQ(nullptr, mgr.report_task_.get_mgr());
+  ASSERT_EQ(nullptr, mgr.report_task_.get_sql_proxy());
+
+  ASSERT_TRUE(mgr_.is_inited_);
+  ASSERT_TRUE(mgr_.report_task_.get_is_inited());
+  ASSERT_TRUE(mgr_.refresh_conf_task_.get_is_inited());
+  ASSERT_EQ(&mgr_, mgr_.report_task_.get_mgr());
+  ASSERT_EQ(&mgr_, mgr_.refresh_conf_task_.get_mgr());
+  ASSERT_EQ(GCTX.sql_proxy_, mgr_.report_task_.get_sql_proxy());
+}
+
+TEST_F(TestIndexUsageInfo, test_update)
+{
+  int64_t mock_tenant_id = 1888;
+  int64_t mock_index_id = 500002;
+
+  ASSERT_TRUE(mgr_.is_inited_);
+  ASSERT_EQ(0, check_size());
+  mgr_.is_sample_mode_=false;
+  mgr_.is_enabled_=true;
+  mgr_.min_tenant_data_version_=DATA_VERSION_4_3_0_0;
+  mgr_.update(mock_tenant_id, mock_index_id);
+  ASSERT_EQ(1, check_size());
+}
+
+TEST_F(TestIndexUsageInfo, test_sample_filter)
+{
+  // about 10% sample ratio
+  bool is_filter = true;
+  int64_t count = 0;
+  for (int64_t i = 0; i < 20; i++) {
+    int64_t random_num = common::ObClockGenerator::getClock();
+    is_filter = mgr_.sample_filterd(random_num);
+    if (!is_filter) {
+      count++;
+    }
+  }
+  ASSERT_TRUE(count < 20);
+}
+
+TEST_F(TestIndexUsageInfo, test_refresh_config)
+{
+  mgr_.is_enabled_ = false;
+  mgr_.is_sample_mode_=false;
+  mgr_.max_entries_=1000;
+  mgr_.refresh_config();
+  ASSERT_EQ(true, mgr_.is_enabled_);
+  ASSERT_EQ(true, mgr_.is_sample_mode_);
+  ASSERT_EQ(30000, mgr_.max_entries_);
+}
+
+TEST_F(TestIndexUsageInfo, test_destory)
+{
+  mgr_.destroy();
+  ASSERT_FALSE(mgr_.is_inited_);
+  ASSERT_FALSE(mgr_.report_task_.get_is_inited());
+  ASSERT_FALSE(mgr_.refresh_conf_task_.get_is_inited());
+  ASSERT_EQ(nullptr, mgr_.index_usage_map_);
+  ASSERT_EQ(nullptr, mgr_.report_task_.get_sql_proxy());
+  ASSERT_EQ(nullptr, mgr_.report_task_.get_mgr());
+  ASSERT_EQ(nullptr, mgr_.refresh_conf_task_.get_mgr());
+}
+
+int main(int argc, char **argv)
+{
+  OB_LOGGER.set_log_level("INFO");
+  OB_LOGGER.set_file_name("TestIndexUsageInfo.log", true);
+  ::testing::InitGoogleTest(&argc,argv);
+  return RUN_ALL_TESTS();
+}