Implemented add and serialize

Former-commit-id: 35a61d2fd0fc9c703ec4efbc9fe8399162e79b8e

cpp/src/db/MemTable.cpp

@@ -6,24 +6,26 @@ namespace milvus {
 namespace engine {
 
 MemTable::MemTable(const std::string& table_id,
-                   const std::shared_ptr<meta::Meta>& meta) :
+                   const std::shared_ptr<meta::Meta>& meta,
+                   const Options& options) :
                    table_id_(table_id),
-                   meta_(meta) {
+                   meta_(meta),
+                   options_(options) {
 
 }
 
 Status MemTable::Add(VectorSource::Ptr& source) {
     while (!source->AllAdded()) {
         MemTableFile::Ptr currentMemTableFile;
-        if (!mem_table_file_stack_.empty()) {
-            currentMemTableFile = mem_table_file_stack_.top();
+        if (!mem_table_file_list_.empty()) {
+            currentMemTableFile = mem_table_file_list_.back();
         }
         Status status;
-        if (mem_table_file_stack_.empty() || currentMemTableFile->isFull()) {
-            MemTableFile::Ptr newMemTableFile = std::make_shared<MemTableFile>(table_id_, meta_);
+        if (mem_table_file_list_.empty() || currentMemTableFile->IsFull()) {
+            MemTableFile::Ptr newMemTableFile = std::make_shared<MemTableFile>(table_id_, meta_, options_);
             status = newMemTableFile->Add(source);
             if (status.ok()) {
-                mem_table_file_stack_.push(newMemTableFile);
+                mem_table_file_list_.emplace_back(newMemTableFile);
             }
         }
         else {
@@ -39,11 +41,23 @@ Status MemTable::Add(VectorSource::Ptr& source) {
 }
 
 void MemTable::GetCurrentMemTableFile(MemTableFile::Ptr& mem_table_file) {
-    mem_table_file = mem_table_file_stack_.top();
+    mem_table_file = mem_table_file_list_.back();
 }
 
 size_t MemTable::GetStackSize() {
-    return mem_table_file_stack_.size();
+    return mem_table_file_list_.size();
+}
+
+Status MemTable::Serialize() {
+    for (auto& memTableFile : mem_table_file_list_) {
+        auto status = memTableFile->Serialize();
+        if (!status.ok()) {
+            std::string errMsg = "MemTable::Serialize failed: " + status.ToString();
+            ENGINE_LOG_ERROR << errMsg;
+            return Status::Error(errMsg);
+        }
+    }
+    return Status::OK();
 }
 
 } // namespace engine

cpp/src/db/MemTable.h

@@ -15,10 +15,10 @@ class MemTable {
 public:
 
     using Ptr = std::shared_ptr<MemTable>;
-    using MemTableFileStack = std::stack<MemTableFile::Ptr>;
+    using MemTableFileList = std::vector<MemTableFile::Ptr>;
     using MetaPtr = meta::Meta::Ptr;
 
-    MemTable(const std::string& table_id, const std::shared_ptr<meta::Meta>& meta);
+    MemTable(const std::string& table_id, const std::shared_ptr<meta::Meta>& meta, const Options& options);
 
     Status Add(VectorSource::Ptr& source);
 
@@ -26,13 +26,17 @@ public:
 
     size_t GetStackSize();
 
+    Status Serialize();
+
 private:
     const std::string table_id_;
 
-    MemTableFileStack mem_table_file_stack_;
+    MemTableFileList mem_table_file_list_;
 
     MetaPtr meta_;
 
+    Options options_;
+
 }; //MemTable
 
 } // namespace engine

cpp/src/db/MemTableFile.cpp

@@ -2,6 +2,7 @@
 #include "Constants.h"
 #include "Log.h"
 #include "EngineFactory.h"
+#include "metrics/Metrics.h"
 
 #include <cmath>
 
@@ -10,9 +11,11 @@ namespace milvus {
 namespace engine {
 
 MemTableFile::MemTableFile(const std::string& table_id,
-                           const std::shared_ptr<meta::Meta>& meta) :
+                           const std::shared_ptr<meta::Meta>& meta,
+                           const Options& options) :
                            table_id_(table_id),
-                           meta_(meta) {
+                           meta_(meta),
+                           options_(options) {
 
     current_mem_ = 0;
     auto status = CreateTableFile();
@@ -40,6 +43,13 @@ Status MemTableFile::CreateTableFile() {
 
 Status MemTableFile::Add(const VectorSource::Ptr& source) {
 
+    if (table_file_schema_.dimension_ <= 0) {
+        std::string errMsg = "MemTableFile::Add: table_file_schema dimension = " +
+                             std::to_string(table_file_schema_.dimension_) + ", table_id = " + table_file_schema_.table_id_;
+        ENGINE_LOG_ERROR << errMsg;
+        return Status::Error(errMsg);
+    }
+
     size_t singleVectorMemSize = table_file_schema_.dimension_ * VECTOR_TYPE_SIZE;
     size_t memLeft = GetMemLeft();
     if (memLeft >= singleVectorMemSize) {
@@ -62,11 +72,37 @@ size_t MemTableFile::GetMemLeft() {
     return (MAX_TABLE_FILE_MEM - current_mem_);
 }
 
-bool MemTableFile::isFull() {
+bool MemTableFile::IsFull() {
     size_t singleVectorMemSize = table_file_schema_.dimension_ * VECTOR_TYPE_SIZE;
     return (GetMemLeft() < singleVectorMemSize);
 }
 
+Status MemTableFile::Serialize() {
+
+    auto start_time = METRICS_NOW_TIME;
+
+    auto size = GetCurrentMem();
+
+    execution_engine_->Serialize();
+    auto end_time = METRICS_NOW_TIME;
+    auto total_time = METRICS_MICROSECONDS(start_time, end_time);
+    table_file_schema_.size_ = size;
+
+    server::Metrics::GetInstance().DiskStoreIOSpeedGaugeSet((double)size/total_time);
+
+    table_file_schema_.file_type_ = (size >= options_.index_trigger_size) ?
+                         meta::TableFileSchema::TO_INDEX : meta::TableFileSchema::RAW;
+
+    auto status = meta_->UpdateTableFile(table_file_schema_);
+
+    LOG(DEBUG) << "New " << ((table_file_schema_.file_type_ == meta::TableFileSchema::RAW) ? "raw" : "to_index")
+               << " file " << table_file_schema_.file_id_ << " of size " << (double)size / (double)M << " M";
+
+    execution_engine_->Cache();
+
+    return status;
+}
+
 } // namespace engine
 } // namespace milvus
 } // namespace zilliz
\ No newline at end of file

cpp/src/db/MemTableFile.h

@@ -16,7 +16,7 @@ public:
     using Ptr = std::shared_ptr<MemTableFile>;
     using MetaPtr = meta::Meta::Ptr;
 
-    MemTableFile(const std::string& table_id, const std::shared_ptr<meta::Meta>& meta);
+    MemTableFile(const std::string& table_id, const std::shared_ptr<meta::Meta>& meta, const Options& options);
 
     Status Add(const VectorSource::Ptr& source);
 
@@ -24,7 +24,9 @@ public:
 
     size_t GetMemLeft();
 
-    bool isFull();
+    bool IsFull();
+
+    Status Serialize();
 
 private:
 
@@ -36,6 +38,8 @@ private:
 
     MetaPtr meta_;
 
+    Options options_;
+
     size_t current_mem_;
 
     ExecutionEnginePtr execution_engine_;

cpp/src/db/VectorSource.cpp

@@ -2,6 +2,7 @@
 #include "ExecutionEngine.h"
 #include "EngineFactory.h"
 #include "Log.h"
+#include "metrics/Metrics.h"
 
 namespace zilliz {
 namespace milvus {
@@ -21,12 +22,7 @@ Status VectorSource::Add(const ExecutionEnginePtr& execution_engine,
                          const size_t& num_vectors_to_add,
                          size_t& num_vectors_added) {
 
-    if (table_file_schema.dimension_ <= 0) {
-        std::string errMsg = "VectorSource::Add: table_file_schema dimension = " +
-                             std::to_string(table_file_schema.dimension_) + ", table_id = " + table_file_schema.table_id_;
-        ENGINE_LOG_ERROR << errMsg;
-        return Status::Error(errMsg);
-    }
+    auto start_time = METRICS_NOW_TIME;
 
     num_vectors_added = current_num_vectors_added + num_vectors_to_add <= n_ ? num_vectors_to_add : n_ - current_num_vectors_added;
     IDNumbers vector_ids_to_add;
@@ -40,6 +36,10 @@ Status VectorSource::Add(const ExecutionEnginePtr& execution_engine,
         ENGINE_LOG_ERROR << "VectorSource::Add failed: " + status.ToString();
     }
 
+    auto end_time = METRICS_NOW_TIME;
+    auto total_time = METRICS_MICROSECONDS(start_time, end_time);
+    server::Metrics::GetInstance().AddVectorsPerSecondGaugeSet(static_cast<int>(n_), static_cast<int>(table_file_schema.dimension_), total_time);
+
     return status;
 }
 

cpp/src/db/VectorSource.h

@@ -28,8 +28,6 @@ public:
 
     IDNumbers GetVectorIds();
 
-//    Status Serialize();
-
 private:
 
     const size_t n_;

cpp/unittest/db/mem_test.cpp

@@ -86,12 +86,13 @@ TEST(MEM_TEST, VECTOR_SOURCE_TEST) {
 TEST(MEM_TEST, MEM_TABLE_FILE_TEST) {
 
     std::shared_ptr<engine::meta::DBMetaImpl> impl_ = engine::DBMetaImplFactory::Build();
+    auto options = engine::OptionsFactory::Build();
 
     engine::meta::TableSchema table_schema = BuildTableSchema();
     auto status = impl_->CreateTable(table_schema);
     ASSERT_TRUE(status.ok());
 
-    engine::MemTableFile memTableFile(TABLE_NAME, impl_);
+    engine::MemTableFile memTableFile(TABLE_NAME, impl_, options);
 
     int64_t n_100 = 100;
     std::vector<float> vectors_100;
@@ -120,7 +121,7 @@ TEST(MEM_TEST, MEM_TABLE_FILE_TEST) {
     vector_ids = source_128M->GetVectorIds();
     ASSERT_EQ(vector_ids.size(), n_max - n_100);
 
-    ASSERT_TRUE(memTableFile.isFull());
+    ASSERT_TRUE(memTableFile.IsFull());
 
     status = impl_->DropAll();
     ASSERT_TRUE(status.ok());
@@ -129,6 +130,7 @@ TEST(MEM_TEST, MEM_TABLE_FILE_TEST) {
 TEST(MEM_TEST, MEM_TABLE_TEST) {
 
     std::shared_ptr<engine::meta::DBMetaImpl> impl_ = engine::DBMetaImplFactory::Build();
+    auto options = engine::OptionsFactory::Build();
 
     engine::meta::TableSchema table_schema = BuildTableSchema();
     auto status = impl_->CreateTable(table_schema);
@@ -140,7 +142,7 @@ TEST(MEM_TEST, MEM_TABLE_TEST) {
 
     engine::VectorSource::Ptr source_100 = std::make_shared<engine::VectorSource>(n_100, vectors_100.data());
 
-    engine::MemTable memTable(TABLE_NAME, impl_);
+    engine::MemTable memTable(TABLE_NAME, impl_, options);
 
     status = memTable.Add(source_100);
     ASSERT_TRUE(status.ok());
@@ -184,6 +186,9 @@ TEST(MEM_TEST, MEM_TABLE_TEST) {
     int expectedStackSize = 2 + std::ceil((n_1G - n_100) * singleVectorMem / engine::MAX_TABLE_FILE_MEM);
     ASSERT_EQ(memTable.GetStackSize(), expectedStackSize);
 
+    status = memTable.Serialize();
+    ASSERT_TRUE(status.ok());
+
     status = impl_->DropAll();
     ASSERT_TRUE(status.ok());
 }