milvus/cpp/src/db/DBImpl.h
starlord e441dea5cb refine code
Former-commit-id: b873ea2628269323db8230c6c82081cfbefc79b2
2019-09-05 10:32:07 +08:00

148 lines
4.1 KiB
C++

/*******************************************************************************
* Copyright 上海赜睿信息科技有限公司(Zilliz) - All Rights Reserved
* Unauthorized copying of this file, via any medium is strictly prohibited.
* Proprietary and confidential.
******************************************************************************/
#pragma once
#include "DB.h"
#include "Types.h"
#include "utils/ThreadPool.h"
#include "src/db/insert/MemManager.h"
#include <mutex>
#include <condition_variable>
#include <memory>
#include <atomic>
#include <thread>
#include <list>
#include <set>
#include "scheduler/context/SearchContext.h"
namespace zilliz {
namespace milvus {
namespace engine {
class Env;
namespace meta {
class Meta;
}
class DBImpl : public DB {
public:
using MetaPtr = meta::Meta::Ptr;
explicit DBImpl(const Options &options);
~DBImpl();
Status Start() override;
Status Stop() override;
Status DropAll() override;
Status CreateTable(meta::TableSchema &table_schema) override;
Status DeleteTable(const std::string &table_id, const meta::DatesT &dates) override;
Status DescribeTable(meta::TableSchema &table_schema) override;
Status HasTable(const std::string &table_id, bool &has_or_not) override;
Status AllTables(std::vector<meta::TableSchema> &table_schema_array) override;
Status PreloadTable(const std::string &table_id) override;
Status UpdateTableFlag(const std::string &table_id, int64_t flag);
Status GetTableRowCount(const std::string &table_id, uint64_t &row_count) override;
Status InsertVectors(const std::string &table_id, uint64_t n, const float *vectors, IDNumbers &vector_ids) override;
Status CreateIndex(const std::string& table_id, const TableIndex& index) override;
Status DescribeIndex(const std::string& table_id, TableIndex& index) override;
Status DropIndex(const std::string& table_id) override;
Status Query(const std::string &table_id,
uint64_t k,
uint64_t nq,
uint64_t nprobe,
const float *vectors,
QueryResults &results) override;
Status Query(const std::string &table_id,
uint64_t k,
uint64_t nq,
uint64_t nprobe,
const float *vectors,
const meta::DatesT &dates,
QueryResults &results) override;
Status Query(const std::string &table_id,
const std::vector<std::string> &file_ids,
uint64_t k,
uint64_t nq,
uint64_t nprobe,
const float *vectors,
const meta::DatesT &dates,
QueryResults &results) override;
Status Size(uint64_t &result) override;
private:
Status QueryAsync(const std::string &table_id,
const meta::TableFilesSchema &files,
uint64_t k,
uint64_t nq,
uint64_t nprobe,
const float *vectors,
const meta::DatesT &dates,
QueryResults &results);
void BackgroundTimerTask();
void StartMetricTask();
void StartCompactionTask();
Status MergeFiles(const std::string &table_id,
const meta::DateT &date,
const meta::TableFilesSchema &files);
Status BackgroundMergeFiles(const std::string &table_id);
void BackgroundCompaction(std::set<std::string> table_ids);
void StartBuildIndexTask(bool force=false);
void BackgroundBuildIndex();
Status BuildIndex(const meta::TableFileSchema &);
Status MemSerialize();
private:
const Options options_;
std::atomic<bool> shutting_down_;
std::thread bg_timer_thread_;
MetaPtr meta_ptr_;
MemManagerAbstractPtr mem_mgr_;
std::mutex mem_serialize_mutex_;
server::ThreadPool compact_thread_pool_;
std::list<std::future<void>> compact_thread_results_;
std::set<std::string> compact_table_ids_;
server::ThreadPool index_thread_pool_;
std::list<std::future<void>> index_thread_results_;
std::mutex build_index_mutex_;
}; // DBImpl
} // namespace engine
} // namespace milvus
} // namespace zilliz