Add setter API for config `preload_table` (#1526)

* update code

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* optimize http module code

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* move gpu res handler to config holder

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* Add setter API for config preload_table (fix #1525)

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* add else branch at end of if condition

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

CHANGELOG.md

@@ -36,6 +36,7 @@ Please mark all change in change log and use the issue from GitHub
 -   \#1510 Add set interfaces for WAL configurations
 -   \#1511 Fix big integer cannot pass to server correctly
 -   \#1518 Table count did not match after deleting vectors and compact
+-   \#1525 Add setter API for config preload_table
 
 ## Feature
 -   \#216 Add CLI to get server info

core/src/CMakeLists.txt

@@ -30,6 +30,7 @@ endforeach ()
 
 aux_source_directory(${MILVUS_ENGINE_SRC}/cache cache_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/config config_files)
+aux_source_directory(${MILVUS_ENGINE_SRC}/config/handler config_handler_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/metrics metrics_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/metrics/prometheus metrics_prometheus_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/db db_main_files)
@@ -50,7 +51,6 @@ aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/action scheduler_action_file
 aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/event scheduler_event_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/job scheduler_job_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/optimizer scheduler_optimizer_files)
-aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/optimizer/handler scheduler_optimizer_handler_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/resource scheduler_resource_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/task scheduler_task_files)
 set(scheduler_files
@@ -59,7 +59,6 @@ set(scheduler_files
         ${scheduler_event_files}
         ${scheduler_job_files}
         ${scheduler_optimizer_files}
-        ${scheduler_optimizer_handler_files}
         ${scheduler_resource_files}
         ${scheduler_task_files}
         )
@@ -279,6 +278,7 @@ set(server_libs
 
 add_executable(milvus_server
         ${config_files}
+        ${config_handler_files}
         ${metrics_files}
         ${scheduler_files}
         ${server_files}

core/src/config/handler/GpuBuildResHandler.cpp

@@ -9,13 +9,13 @@
 // 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.
 #ifdef MILVUS_GPU_VERSION
-#include "scheduler/optimizer/handler/GpuBuildResHandler.h"
+#include "config/handler/GpuBuildResHandler.h"
 
 #include <string>
 #include <vector>
 
 namespace milvus {
-namespace scheduler {
+namespace server {
 
 GpuBuildResHandler::GpuBuildResHandler() {
     server::Config& config = server::Config::GetInstance();
@@ -50,6 +50,12 @@ GpuBuildResHandler::AddGpuBuildResListener() {
                             lambda);
 }
 
-}  // namespace scheduler
+void
+GpuBuildResHandler::RemoveGpuBuildResListener() {
+    auto& config = server::Config::GetInstance();
+    config.CancelCallBack(server::CONFIG_GPU_RESOURCE, server::CONFIG_GPU_RESOURCE_BUILD_INDEX_RESOURCES, identity_);
+}
+
+}  // namespace server
 }  // namespace milvus
 #endif

core/src/config/handler/GpuBuildResHandler.h

@@ -11,12 +11,12 @@
 #ifdef MILVUS_GPU_VERSION
 #pragma once
 
-#include "scheduler/optimizer/handler/GpuResourcesHandler.h"
-
 #include <vector>
 
+#include "config/handler/GpuResourcesHandler.h"
+
 namespace milvus {
-namespace scheduler {
+namespace server {
 
 class GpuBuildResHandler : virtual public GpuResourcesHandler {
  public:
@@ -32,10 +32,13 @@ class GpuBuildResHandler : virtual public GpuResourcesHandler {
     void
     AddGpuBuildResListener();
 
+    void
+    RemoveGpuBuildResListener();
+
  protected:
     std::vector<int64_t> build_gpus_;
 };
 
-}  // namespace scheduler
+}  // namespace server
 }  // namespace milvus
 #endif

core/src/config/handler/GpuResourcesHandler.cpp

@@ -10,10 +10,10 @@
 // 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.
 #ifdef MILVUS_GPU_VERSION
-#include "scheduler/optimizer/handler/GpuResourcesHandler.h"
+#include "config/handler/GpuResourcesHandler.h"
 
 namespace milvus {
-namespace scheduler {
+namespace server {
 
 GpuResourcesHandler::GpuResourcesHandler() {
     server::Config& config = server::Config::GetInstance();
@@ -21,8 +21,7 @@ GpuResourcesHandler::GpuResourcesHandler() {
 }
 
 GpuResourcesHandler::~GpuResourcesHandler() {
-    server::Config& config = server::Config::GetInstance();
-    config.CancelCallBack(server::CONFIG_GPU_RESOURCE, server::CONFIG_GPU_RESOURCE_ENABLE, identity_);
+    RemoveGpuEnableListener();
 }
 
 //////////////////////////////////////////////////////////////
@@ -54,6 +53,12 @@ GpuResourcesHandler::AddGpuEnableListener() {
     config.RegisterCallBack(server::CONFIG_GPU_RESOURCE, server::CONFIG_GPU_RESOURCE_ENABLE, identity_, lambda);
 }
 
-}  // namespace scheduler
+void
+GpuResourcesHandler::RemoveGpuEnableListener() {
+    server::Config& config = server::Config::GetInstance();
+    config.CancelCallBack(server::CONFIG_GPU_RESOURCE, server::CONFIG_GPU_RESOURCE_ENABLE, identity_);
+}
+
+}  // namespace server
 }  // namespace milvus
 #endif

core/src/config/handler/GpuResourcesHandler.h

@@ -18,7 +18,7 @@
 #include "server/Config.h"
 
 namespace milvus {
-namespace scheduler {
+namespace server {
 
 class GpuResourcesHandler {
  public:
@@ -26,7 +26,7 @@ class GpuResourcesHandler {
 
     ~GpuResourcesHandler();
 
- public:
+ protected:
     virtual void
     OnGpuEnableChanged(bool enable);
 
@@ -37,11 +37,14 @@ class GpuResourcesHandler {
     void
     AddGpuEnableListener();
 
+    void
+    RemoveGpuEnableListener();
+
  protected:
     bool gpu_enable_ = true;
     std::string identity_;
 };
 
-}  // namespace scheduler
+}  // namespace server
 }  // namespace milvus
 #endif

core/src/config/handler/GpuSearchResHandler.cpp

@@ -9,7 +9,7 @@
 // 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.
 #ifdef MILVUS_GPU_VERSION
-#include "scheduler/optimizer/handler/GpuSearchResHandler.h"
+#include "config/handler/GpuSearchResHandler.h"
 
 #include <string>
 #include <vector>
@@ -17,7 +17,7 @@
 #include "server/Config.h"
 
 namespace milvus {
-namespace scheduler {
+namespace server {
 
 GpuSearchResHandler::GpuSearchResHandler() {
     server::Config& config = server::Config::GetInstance();
@@ -31,9 +31,8 @@ GpuSearchResHandler::GpuSearchResHandler() {
 }
 
 GpuSearchResHandler::~GpuSearchResHandler() {
-    server::Config& config = server::Config::GetInstance();
-    config.CancelCallBack(server::CONFIG_ENGINE, server::CONFIG_ENGINE_GPU_SEARCH_THRESHOLD, identity_);
-    config.CancelCallBack(server::CONFIG_GPU_RESOURCE, server::CONFIG_GPU_RESOURCE_SEARCH_RESOURCES, identity_);
+    RemoveGpuSearchThresholdListener();
+    RemoveGpuSearchResListener();
 }
 
 ////////////////////////////////////////////////////////////////////////
@@ -83,6 +82,18 @@ GpuSearchResHandler::AddGpuSearchResListener() {
                             lambda_gpu_search_res);
 }
 
-}  // namespace scheduler
+void
+GpuSearchResHandler::RemoveGpuSearchThresholdListener() {
+    server::Config& config = server::Config::GetInstance();
+    config.CancelCallBack(server::CONFIG_ENGINE, server::CONFIG_ENGINE_GPU_SEARCH_THRESHOLD, identity_);
+}
+
+void
+GpuSearchResHandler::RemoveGpuSearchResListener() {
+    auto& config = server::Config::GetInstance();
+    config.CancelCallBack(server::CONFIG_GPU_RESOURCE, server::CONFIG_GPU_RESOURCE_SEARCH_RESOURCES, identity_);
+}
+
+}  // namespace server
 }  // namespace milvus
 #endif

core/src/config/handler/GpuSearchResHandler.h

@@ -11,13 +11,13 @@
 #ifdef MILVUS_GPU_VERSION
 #pragma once
 
-#include "scheduler/optimizer/handler/GpuResourcesHandler.h"
-
 #include <limits>
 #include <vector>
 
+#include "config/handler/GpuResourcesHandler.h"
+
 namespace milvus {
-namespace scheduler {
+namespace server {
 
 class GpuSearchResHandler : virtual public GpuResourcesHandler {
  public:
@@ -39,11 +39,17 @@ class GpuSearchResHandler : virtual public GpuResourcesHandler {
     void
     AddGpuSearchResListener();
 
+    void
+    RemoveGpuSearchThresholdListener();
+
+    void
+    RemoveGpuSearchResListener();
+
  protected:
     int64_t threshold_ = std::numeric_limits<int64_t>::max();
     std::vector<int64_t> search_gpus_;
 };
 
-}  // namespace scheduler
+}  // namespace server
 }  // namespace milvus
 #endif

core/src/scheduler/optimizer/BuildIndexPass.h

@@ -22,13 +22,13 @@
 #include <unordered_map>
 #include <vector>
 
+#include "config/handler/GpuBuildResHandler.h"
 #include "scheduler/optimizer/Pass.h"
-#include "scheduler/optimizer/handler/GpuBuildResHandler.h"
 
 namespace milvus {
 namespace scheduler {
 
-class BuildIndexPass : public Pass, public GpuBuildResHandler {
+class BuildIndexPass : public Pass, public server::GpuBuildResHandler {
  public:
     BuildIndexPass() = default;
 

core/src/scheduler/optimizer/FaissFlatPass.h

@@ -23,13 +23,13 @@
 #include <unordered_map>
 #include <vector>
 
+#include "config/handler/GpuSearchResHandler.h"
 #include "scheduler/optimizer/Pass.h"
-#include "src/scheduler/optimizer/handler/GpuSearchResHandler.h"
 
 namespace milvus {
 namespace scheduler {
 
-class FaissFlatPass : public Pass, public GpuSearchResHandler {
+class FaissFlatPass : public Pass, public server::GpuSearchResHandler {
  public:
     FaissFlatPass() = default;
 

core/src/scheduler/optimizer/FaissIVFFlatPass.h

@@ -23,13 +23,13 @@
 #include <unordered_map>
 #include <vector>
 
+#include "config/handler/GpuSearchResHandler.h"
 #include "scheduler/optimizer/Pass.h"
-#include "scheduler/optimizer/handler/GpuSearchResHandler.h"
 
 namespace milvus {
 namespace scheduler {
 
-class FaissIVFFlatPass : public Pass, public GpuSearchResHandler {
+class FaissIVFFlatPass : public Pass, public server::GpuSearchResHandler {
  public:
     FaissIVFFlatPass() = default;
 

core/src/scheduler/optimizer/FaissIVFPQPass.h

@@ -23,13 +23,13 @@
 #include <unordered_map>
 #include <vector>
 
+#include "config/handler/GpuSearchResHandler.h"
 #include "scheduler/optimizer/Pass.h"
-#include "scheduler/optimizer/handler/GpuSearchResHandler.h"
 
 namespace milvus {
 namespace scheduler {
 
-class FaissIVFPQPass : public Pass, public GpuSearchResHandler {
+class FaissIVFPQPass : public Pass, public server::GpuSearchResHandler {
  public:
     FaissIVFPQPass() = default;
 

core/src/scheduler/optimizer/FaissIVFSQ8HPass.h

@@ -23,13 +23,13 @@
 #include <unordered_map>
 #include <vector>
 
+#include "config/handler/GpuSearchResHandler.h"
 #include "scheduler/optimizer/Pass.h"
-#include "scheduler/optimizer/handler/GpuSearchResHandler.h"
 
 namespace milvus {
 namespace scheduler {
 
-class FaissIVFSQ8HPass : public Pass, public GpuSearchResHandler {
+class FaissIVFSQ8HPass : public Pass, public server::GpuSearchResHandler {
  public:
     FaissIVFSQ8HPass() = default;
 

core/src/scheduler/optimizer/FaissIVFSQ8Pass.h

@@ -23,13 +23,13 @@
 #include <unordered_map>
 #include <vector>
 
+#include "config/handler/GpuSearchResHandler.h"
 #include "scheduler/optimizer/Pass.h"
-#include "scheduler/optimizer/handler/GpuSearchResHandler.h"
 
 namespace milvus {
 namespace scheduler {
 
-class FaissIVFSQ8Pass : public Pass, public GpuSearchResHandler {
+class FaissIVFSQ8Pass : public Pass, public server::GpuSearchResHandler {
  public:
     FaissIVFSQ8Pass() = default;
 

core/src/server/Config.cpp

@@ -13,7 +13,6 @@
 #include <unistd.h>
 #include <algorithm>
 #include <chrono>
-#include <fstream>
 #include <iostream>
 #include <regex>
 #include <string>
@@ -24,6 +23,7 @@
 
 #include "config/YamlConfigMgr.h"
 #include "server/Config.h"
+#include "server/DBWrapper.h"
 #include "thirdparty/nlohmann/json.hpp"
 #include "utils/CommonUtil.h"
 #include "utils/StringHelpFunctions.h"
@@ -131,6 +131,9 @@ Config::ValidateConfig() {
     std::string db_backend_url;
     CONFIG_CHECK(GetDBConfigBackendUrl(db_backend_url));
 
+    std::string db_preload_table;
+    CONFIG_CHECK(GetDBConfigPreloadTable(db_preload_table));
+
     int64_t db_archive_disk_threshold;
     CONFIG_CHECK(GetDBConfigArchiveDiskThreshold(db_archive_disk_threshold));
 
@@ -256,6 +259,7 @@ Config::ResetDefaultConfig() {
 
     /* db config */
     CONFIG_CHECK(SetDBConfigBackendUrl(CONFIG_DB_BACKEND_URL_DEFAULT));
+    CONFIG_CHECK(SetDBConfigPreloadTable(CONFIG_DB_PRELOAD_TABLE_DEFAULT));
     CONFIG_CHECK(SetDBConfigArchiveDiskThreshold(CONFIG_DB_ARCHIVE_DISK_THRESHOLD_DEFAULT));
     CONFIG_CHECK(SetDBConfigArchiveDaysThreshold(CONFIG_DB_ARCHIVE_DAYS_THRESHOLD_DEFAULT));
 
@@ -323,9 +327,10 @@ Config::GetConfigCli(std::string& value, const std::string& parent_key, const st
 
 Status
 Config::SetConfigCli(const std::string& parent_key, const std::string& child_key, const std::string& value) {
+    std::string invalid_node_str = "Config node invalid: " + parent_key + CONFIG_NODE_DELIMITER + child_key;
+
     if (!ConfigNodeValid(parent_key, child_key)) {
-        std::string str = "Config node invalid: " + parent_key + CONFIG_NODE_DELIMITER + child_key;
-        return Status(SERVER_UNEXPECTED_ERROR, str);
+        return Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
     }
     auto status = Status::OK();
     if (parent_key == CONFIG_SERVER) {
@@ -339,10 +344,16 @@ Config::SetConfigCli(const std::string& parent_key, const std::string& child_key
             status = SetServerConfigTimeZone(value);
         } else if (child_key == CONFIG_SERVER_WEB_PORT) {
             status = SetServerConfigWebPort(value);
+        } else {
+            status = Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
         }
     } else if (parent_key == CONFIG_DB) {
         if (child_key == CONFIG_DB_BACKEND_URL) {
             status = SetDBConfigBackendUrl(value);
+        } else if (child_key == CONFIG_DB_PRELOAD_TABLE) {
+            status = SetDBConfigPreloadTable(value);
+        } else {
+            status = Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
         }
     } else if (parent_key == CONFIG_STORAGE) {
         if (child_key == CONFIG_STORAGE_PRIMARY_PATH) {
@@ -361,6 +372,8 @@ Config::SetConfigCli(const std::string& parent_key, const std::string& child_key
             status = SetStorageConfigS3SecretKey(value);
         } else if (child_key == CONFIG_STORAGE_S3_BUCKET) {
             status = SetStorageConfigS3Bucket(value);
+        } else {
+            status = Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
         }
     } else if (parent_key == CONFIG_METRIC) {
         if (child_key == CONFIG_METRIC_ENABLE_MONITOR) {
@@ -369,6 +382,8 @@ Config::SetConfigCli(const std::string& parent_key, const std::string& child_key
             status = SetMetricConfigAddress(value);
         } else if (child_key == CONFIG_METRIC_PORT) {
             status = SetMetricConfigPort(value);
+        } else {
+            status = Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
         }
     } else if (parent_key == CONFIG_CACHE) {
         if (child_key == CONFIG_CACHE_CPU_CACHE_CAPACITY) {
@@ -379,6 +394,8 @@ Config::SetConfigCli(const std::string& parent_key, const std::string& child_key
             status = SetCacheConfigCacheInsertData(value);
         } else if (child_key == CONFIG_CACHE_INSERT_BUFFER_SIZE) {
             status = SetCacheConfigInsertBufferSize(value);
+        } else {
+            status = Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
         }
     } else if (parent_key == CONFIG_ENGINE) {
         if (child_key == CONFIG_ENGINE_USE_BLAS_THRESHOLD) {
@@ -391,6 +408,8 @@ Config::SetConfigCli(const std::string& parent_key, const std::string& child_key
         } else if (child_key == CONFIG_ENGINE_GPU_SEARCH_THRESHOLD) {
             status = SetEngineConfigGpuSearchThreshold(value);
 #endif
+        } else {
+            status = Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
         }
 #ifdef MILVUS_GPU_VERSION
     } else if (parent_key == CONFIG_GPU_RESOURCE) {
@@ -404,6 +423,8 @@ Config::SetConfigCli(const std::string& parent_key, const std::string& child_key
             status = SetGpuResourceConfigSearchResources(value);
         } else if (child_key == CONFIG_GPU_RESOURCE_BUILD_INDEX_RESOURCES) {
             status = SetGpuResourceConfigBuildIndexResources(value);
+        } else {
+            status = Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
         }
 #endif
     } else if (parent_key == CONFIG_TRACING) {
@@ -417,6 +438,8 @@ Config::SetConfigCli(const std::string& parent_key, const std::string& child_key
             status = SetWalConfigBufferSize(value);
         } else if (child_key == CONFIG_WAL_WAL_PATH) {
             status = SetWalConfigWalPath(value);
+        } else {
+            status = Status(SERVER_UNEXPECTED_ERROR, invalid_node_str);
         }
     }
 
@@ -738,6 +761,28 @@ Config::CheckDBConfigBackendUrl(const std::string& value) {
     return Status::OK();
 }
 
+Status
+Config::CheckDBConfigPreloadTable(const std::string& value) {
+    if (value.empty() || value == "*") {
+        return Status::OK();
+    }
+
+    std::vector<std::string> tables;
+    StringHelpFunctions::SplitStringByDelimeter(value, ",", tables);
+    for (auto& table : tables) {
+        if (!ValidationUtil::ValidateTableName(table).ok()) {
+            return Status(SERVER_INVALID_ARGUMENT, "Invalid table name: " + table);
+        }
+        bool exist = false;
+        auto status = DBWrapper::DB()->HasNativeTable(table, exist);
+        if (!(status.ok() && exist)) {
+            return Status(SERVER_TABLE_NOT_EXIST, "Table " + table + " not exist");
+        }
+    }
+
+    return Status::OK();
+}
+
 Status
 Config::CheckDBConfigArchiveDiskThreshold(const std::string& value) {
     auto exist_error = !ValidationUtil::ValidateStringIsNumber(value).ok();
@@ -1772,6 +1817,12 @@ Config::SetDBConfigBackendUrl(const std::string& value) {
     return SetConfigValueInMem(CONFIG_DB, CONFIG_DB_BACKEND_URL, value);
 }
 
+Status
+Config::SetDBConfigPreloadTable(const std::string& value) {
+    CONFIG_CHECK(CheckDBConfigPreloadTable(value));
+    return SetConfigValueInMem(CONFIG_DB, CONFIG_DB_PRELOAD_TABLE, value);
+}
+
 Status
 Config::SetDBConfigArchiveDiskThreshold(const std::string& value) {
     CONFIG_CHECK(CheckDBConfigArchiveDiskThreshold(value));

core/src/server/Config.h

@@ -214,6 +214,8 @@ class Config {
     Status
     CheckDBConfigBackendUrl(const std::string& value);
     Status
+    CheckDBConfigPreloadTable(const std::string& value);
+    Status
     CheckDBConfigArchiveDiskThreshold(const std::string& value);
     Status
     CheckDBConfigArchiveDaysThreshold(const std::string& value);
@@ -422,6 +424,8 @@ class Config {
     Status
     SetDBConfigBackendUrl(const std::string& value);
     Status
+    SetDBConfigPreloadTable(const std::string& value);
+    Status
     SetDBConfigArchiveDiskThreshold(const std::string& value);
     Status
     SetDBConfigArchiveDaysThreshold(const std::string& value);

core/src/server/web_impl/controller/WebController.hpp

@@ -527,14 +527,14 @@ class WebController : public oatpp::web::server::api::ApiController {
         auto status_dto = handler.ShowSegments(table_name, query_params, response);
 
         switch (status_dto->code->getValue()) {
-            case StatusCode::SUCCESS:{
+            case StatusCode::SUCCESS:
                 return createResponse(Status::CODE_200, response);
-            }
-            default:{
+            case StatusCode::TABLE_NOT_EXISTS:
+                return createDtoResponse(Status::CODE_404, status_dto);
+            default:
                 return createDtoResponse(Status::CODE_400, status_dto);
         }
     }
-    }
 
     ADD_CORS(GetSegmentInfo)
     /**
@@ -551,14 +551,14 @@ class WebController : public oatpp::web::server::api::ApiController {
         auto status_dto = handler.GetSegmentInfo(table_name, segment_name, info, query_params, response);
 
         switch (status_dto->code->getValue()) {
-            case StatusCode::SUCCESS:{
+            case StatusCode::SUCCESS:
                 return createResponse(Status::CODE_200, response);
-            }
-            default:{
+            case StatusCode::TABLE_NOT_EXISTS:
+                return createDtoResponse(Status::CODE_404, status_dto);
+            default:
                 return createDtoResponse(Status::CODE_400, status_dto);
         }
     }
-    }
 
     ADD_CORS(VectorsOptions)
 
@@ -578,14 +578,14 @@ class WebController : public oatpp::web::server::api::ApiController {
         auto status_dto = handler.GetVector(table_name, query_params, response);
 
         switch (status_dto->code->getValue()) {
-            case StatusCode::SUCCESS:{
+            case StatusCode::SUCCESS:
                 return createResponse(Status::CODE_200, response);
-            }
-            default:{
+            case StatusCode::TABLE_NOT_EXISTS:
+                return createDtoResponse(Status::CODE_404, status_dto);
+            default:
                 return createDtoResponse(Status::CODE_400, status_dto);
         }
     }
-    }
 
     ADD_CORS(Insert)
 

core/src/server/web_impl/handler/WebRequestHandler.cpp

@@ -726,7 +726,7 @@ WebRequestHandler::SetAdvancedConfig(const AdvancedConfigDto::ObjectWrapper& adv
 #ifdef MILVUS_GPU_VERSION
     engine_cmd_string = engine_cmd_prefix + std::string(CONFIG_ENGINE_GPU_SEARCH_THRESHOLD) + " " +
                         std::to_string(advanced_config->gpu_search_threshold->getValue());
-    CommandLine(engine_cmd_string, reply);
+    status = CommandLine(engine_cmd_string, reply);
     if (!status.ok()) {
         ASSIGN_RETURN_STATUS_DTO(status)
     }
@@ -1434,7 +1434,7 @@ WebRequestHandler::SystemOp(const OString& op, const OString& body_str, OString&
                 status = Compact(j["compact"], result_str);
             }
         } else if (op->equals("config")) {
-            SetConfig(j, result_str);
+            status = SetConfig(j, result_str);
         } else {
             status = Status(UNKNOWN_PATH, "Unknown path: /system/" + op->std_str());
         }

core/unittest/CMakeLists.txt

@@ -22,6 +22,7 @@ include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 
 aux_source_directory(${MILVUS_ENGINE_SRC}/cache cache_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/config config_files)
+aux_source_directory(${MILVUS_ENGINE_SRC}/config/handler config_handler_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/metrics metrics_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/db db_main_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/db/engine db_engine_files)
@@ -43,7 +44,6 @@ aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/job scheduler_job_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/resource scheduler_resource_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/task scheduler_task_files)
 aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/optimizer scheduler_optimizer_files)
-aux_source_directory(${MILVUS_ENGINE_SRC}/scheduler/optimizer/handler scheduler_optimizer_handler_files)
 set(scheduler_files
         ${scheduler_main_files}
         ${scheduler_action_files}
@@ -52,7 +52,6 @@ set(scheduler_files
         ${scheduler_resource_files}
         ${scheduler_task_files}
         ${scheduler_optimizer_files}
-        ${scheduler_optimizer_handler_files}
         )
 
 aux_source_directory(${MILVUS_THIRDPARTY_SRC}/easyloggingpp thirdparty_easyloggingpp_files)
@@ -130,6 +129,7 @@ set(helper_files
 set(common_files
         ${cache_files}
         ${config_files}
+        ${config_handler_files}
         ${db_main_files}
         ${db_engine_files}
         ${db_insert_files}

core/unittest/server/test_web.cpp

@@ -1296,6 +1296,10 @@ TEST_F(WebControllerTest, GET_SEGMENT_INFO) {
     auto vecs_json = vecs_result_json["vectors"];
     ASSERT_TRUE(vecs_json.is_array());
     ASSERT_EQ(10, vecs_json.size());
+
+    // non-existent table
+    response = client_ptr->getSegmentInfo(table_name + "_non_existent", segment_name.c_str(), "ids", "0", "10");
+    ASSERT_EQ(OStatus::CODE_404.code, response->getStatusCode()) << response->readBodyToString()->c_str();
 }
 
 TEST_F(WebControllerTest, SEGMENT_FILTER) {
@@ -1536,6 +1540,10 @@ TEST_F(WebControllerTest, GET_VECTOR_BY_ID) {
     }
 
     ASSERT_EQ(64, vec.size());
+
+    // non-existent table
+    response = client_ptr->getVectors(table_name + "_non_existent", id_str.c_str(), conncetion_ptr);
+    ASSERT_EQ(OStatus::CODE_404.code, response->getStatusCode()) << response->readBodyToString()->c_str();
 }
 
 TEST_F(WebControllerTest, DELETE_BY_ID) {
@@ -1565,6 +1573,10 @@ TEST_F(WebControllerTest, DELETE_BY_ID) {
 
     response = client_ptr->vectorsOp(table_name, delete_json.dump().c_str(), conncetion_ptr);
     ASSERT_EQ(OStatus::CODE_200.code, response->getStatusCode()) << response->readBodyToString()->c_str();
+
+    // non-existent table
+    response = client_ptr->vectorsOp(table_name + "_non_existent", delete_json.dump().c_str(), conncetion_ptr);
+    ASSERT_EQ(OStatus::CODE_404.code, response->getStatusCode()) << response->readBodyToString()->c_str();
 }
 
 TEST_F(WebControllerTest, CMD) {
@@ -1609,6 +1621,31 @@ TEST_F(WebControllerTest, CONFIG) {
 
     auto response = client_ptr->cmd("config", "", "", conncetion_ptr);
     ASSERT_EQ(OStatus::CODE_200.code, response->getStatusCode()) << response->readBodyToString()->c_str();
+    auto result_json = nlohmann::json::parse(response->readBodyToString()->c_str());
+    ASSERT_TRUE(result_json.contains("restart_required"));
+
+    OString table_name = "milvus_test_webcontroller_test_preload_table";
+    GenTable(table_name, 16, 10, "L2");
+
+    OString table_name_s = "milvus_test_webcontroller_test_preload_table";
+    GenTable(table_name_s, 16, 10, "L2");
+
+    OString body_str = "{\"db_config\": {\"preload_table\": \"" + table_name + "\"}}";
+    response = client_ptr->op("config", body_str, conncetion_ptr);
+    ASSERT_EQ(OStatus::CODE_200.code, response->getStatusCode()) << response->readBodyToString()->c_str();
+
+    body_str = "{\"db_config\": {\"preload_table\": \"" + table_name + "," + table_name_s + "\"}}";
+    response = client_ptr->op("config", body_str, conncetion_ptr);
+    ASSERT_EQ(OStatus::CODE_200.code, response->getStatusCode()) << response->readBodyToString()->c_str();
+    auto set_result_json = nlohmann::json::parse(response->readBodyToString()->c_str());
+    ASSERT_TRUE(set_result_json.contains("restart_required"));
+    ASSERT_EQ(true, set_result_json["restart_required"].get<bool>());
+
+    response = client_ptr->cmd("config", "", "", conncetion_ptr);
+    ASSERT_EQ(OStatus::CODE_200.code, response->getStatusCode()) << response->readBodyToString()->c_str();
+    auto get_result_json = nlohmann::json::parse(response->readBodyToString()->c_str());
+    ASSERT_TRUE(get_result_json.contains("restart_required"));
+    ASSERT_EQ(true, get_result_json["restart_required"].get<bool>());
 }
 
 TEST_F(WebControllerTest, ADVANCED_CONFIG) {