76 lines
3.0 KiB
C++
76 lines
3.0 KiB
C++
/**
|
|
* 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.
|
|
*/
|
|
|
|
#define USING_LOG_PREFIX SQL_OPT
|
|
#include "sql/optimizer/ob_intersect_route_policy.h"
|
|
#include "sql/optimizer/ob_replica_compare.h"
|
|
#include "sql/optimizer/ob_phy_table_location_info.h"
|
|
#include "sql/optimizer/ob_log_plan.h"
|
|
using namespace oceanbase::common;
|
|
using namespace oceanbase::share;
|
|
using namespace oceanbase::storage;
|
|
namespace oceanbase
|
|
{
|
|
namespace sql
|
|
{
|
|
int ObIntersectRoutePolicy::init_candidate_replicas(const ObList<common::ObAddr, ObArenaAllocator> &candidate_server_list,
|
|
common::ObIArray<CandidateReplica> &candi_replicas)
|
|
{
|
|
int ret = OB_SUCCESS;
|
|
if (OB_UNLIKELY(!is_inited_)) {
|
|
ret = OB_NOT_INIT;
|
|
LOG_WARN("not init", K(ret));
|
|
}
|
|
|
|
auto server_iter = candidate_server_list.begin();
|
|
CandidateReplica candi_replica;
|
|
for (; OB_SUCC(ret) && server_iter != candidate_server_list.end(); ++server_iter) {
|
|
candi_replica.set_replica_type(REPLICA_TYPE_MAX);//fixme(hanting) : ignore replica type for mv
|
|
candi_replica.set_server(*server_iter);
|
|
if (OB_FAIL(init_candidate_replica(server_locality_array_, candi_replica))) {
|
|
LOG_WARN("fail to init candidate replica", K(server_locality_array_), K(candi_replica), K(ret));
|
|
} else if (OB_FAIL(candi_replicas.push_back(candi_replica))) {
|
|
LOG_WARN("fail to push back candi_replica", K(candi_replica), K(candi_replicas), K(ret));
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
int ObIntersectRoutePolicy::select_replica_with_priority(const ObRoutePolicyCtx &route_policy_ctx,
|
|
const common::ObIArray<CandidateReplica> &replica_array,
|
|
common::ObIArray<ObCandiTableLoc*> &phy_tbl_loc_info_list)
|
|
{
|
|
int ret = OB_SUCCESS;
|
|
bool has_found = false;
|
|
ObAddr selected_addr;
|
|
for (int64_t i = 0; OB_SUCC(ret) && !has_found && i < replica_array.count(); ++i) {
|
|
if (replica_array.at(i).is_usable()) {
|
|
selected_addr = replica_array.at(i).get_server();
|
|
has_found = true;
|
|
}
|
|
}
|
|
|
|
if (OB_UNLIKELY(false == has_found)) {
|
|
int64_t select_idx = rand() % replica_array.count();
|
|
selected_addr = replica_array.at(select_idx).get_server();
|
|
LOG_WARN("all replica is not usable currently", K(replica_array), K(route_policy_ctx), K(select_idx));
|
|
}
|
|
|
|
if (OB_FAIL(ret)) {
|
|
} else if (OB_FAIL(ObLogPlan::select_one_server(selected_addr, phy_tbl_loc_info_list))) {
|
|
LOG_WARN("fail to select one server", K(ret));
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
}//sql
|
|
}//oceanbase
|