milvus/cpp/src/server/DBWrapper.cpp
starlord ce63b710f6 MS-406 add table flag for meta
Former-commit-id: ed80394bb8a37bbc6b558ba0941e825996f81524
2019-08-23 19:12:47 +08:00

111 lines
3.7 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.
******************************************************************************/
#include "DBWrapper.h"
#include "ServerConfig.h"
#include "utils/CommonUtil.h"
#include "utils/Log.h"
#include "utils/StringHelpFunctions.h"
#include <omp.h>
namespace zilliz {
namespace milvus {
namespace server {
DBWrapper::DBWrapper() {
//db config
zilliz::milvus::engine::Options opt;
ConfigNode& db_config = ServerConfig::GetInstance().GetConfig(CONFIG_DB);
opt.meta.backend_uri = db_config.GetValue(CONFIG_DB_URL);
std::string db_path = db_config.GetValue(CONFIG_DB_PATH);
opt.meta.path = db_path + "/db";
std::string db_slave_path = db_config.GetValue(CONFIG_DB_SLAVE_PATH);
StringHelpFunctions::SplitStringByDelimeter(db_slave_path, ";", opt.meta.slave_paths);
// cache config
ConfigNode& cache_config = ServerConfig::GetInstance().GetConfig(CONFIG_CACHE);
opt.insert_cache_immediately_ = cache_config.GetBoolValue(CONFIG_INSERT_CACHE_IMMEDIATELY, false);
ConfigNode& serverConfig = ServerConfig::GetInstance().GetConfig(CONFIG_SERVER);
std::string mode = serverConfig.GetValue(CONFIG_CLUSTER_MODE, "single");
if (mode == "single") {
opt.mode = zilliz::milvus::engine::Options::MODE::SINGLE;
}
else if (mode == "cluster") {
opt.mode = zilliz::milvus::engine::Options::MODE::CLUSTER;
}
else if (mode == "read_only") {
opt.mode = zilliz::milvus::engine::Options::MODE::READ_ONLY;
}
else {
std::cout << "ERROR: mode specified in server_config is not one of ['single', 'cluster', 'read_only']" << std::endl;
kill(0, SIGUSR1);
}
// engine config
ConfigNode& engine_config = ServerConfig::GetInstance().GetConfig(CONFIG_ENGINE);
int32_t omp_thread = engine_config.GetInt32Value(CONFIG_OMP_THREAD_NUM, 0);
if(omp_thread > 0) {
omp_set_num_threads(omp_thread);
SERVER_LOG_DEBUG << "Specify openmp thread number: " << omp_thread;
} else {
uint32_t sys_thread_cnt = 8;
if(CommonUtil::GetSystemAvailableThreads(sys_thread_cnt)) {
omp_thread = (int32_t)ceil(sys_thread_cnt*0.5);
omp_set_num_threads(omp_thread);
}
}
//set archive config
engine::ArchiveConf::CriteriaT criterial;
int64_t disk = db_config.GetInt64Value(CONFIG_DB_ARCHIVE_DISK, 0);
int64_t days = db_config.GetInt64Value(CONFIG_DB_ARCHIVE_DAYS, 0);
if(disk > 0) {
criterial[engine::ARCHIVE_CONF_DISK] = disk;
}
if(days > 0) {
criterial[engine::ARCHIVE_CONF_DAYS] = days;
}
opt.meta.archive_conf.SetCriterias(criterial);
//create db root folder
ServerError err = CommonUtil::CreateDirectory(opt.meta.path);
if(err != SERVER_SUCCESS) {
std::cout << "ERROR! Failed to create database root path: " << opt.meta.path << std::endl;
kill(0, SIGUSR1);
}
for(auto& path : opt.meta.slave_paths) {
err = CommonUtil::CreateDirectory(path);
if(err != SERVER_SUCCESS) {
std::cout << "ERROR! Failed to create database slave path: " << path << std::endl;
kill(0, SIGUSR1);
}
}
//create db instance
std::string msg = opt.meta.path;
try {
zilliz::milvus::engine::DB::Open(opt, &db_);
} catch(std::exception& ex) {
msg = ex.what();
}
if(db_ == nullptr) {
std::cout << "ERROR! Failed to open database: " << msg << std::endl;
kill(0, SIGUSR1);
}
}
DBWrapper::~DBWrapper() {
delete db_;
}
}
}
}