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oceanbase/src/share/ob_time_zone_info_manager.cpp

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/**
* 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 SHARE
#include "rootserver/ob_root_service.h"
#include "share/ob_time_zone_info_manager.h"
#include "lib/allocator/ob_mod_define.h"
#include "lib/mysqlclient/ob_mysql_proxy.h"
#include "lib/mysqlclient/ob_mysql_result.h"
#include "lib/mysqlclient/ob_mysql_transaction.h"
#include "lib/utility/ob_fast_convert.h"
#include "observer/ob_server.h"
#include "observer/omt/ob_tenant_timezone_mgr.h"
#include "observer/ob_sql_client_decorator.h"
#include "lib/lock/ob_spin_rwlock.h"
using namespace oceanbase::share;
using namespace oceanbase::observer;
namespace oceanbase
{
namespace common
{
ObTZInfoMap ObTimeZoneInfoManager::shared_tz_info_map_;
int64_t ObTimeZoneInfoManager::loaded_tz_info_count_ = 0;
SpinRWLock ObTimeZoneInfoManager::sys_rwlock_;
const char *ObTimeZoneInfoManager::FETCH_TZ_INFO_SQL =
"SELECT * "
"FROM ("
"SELECT t1.time_zone_id, t1.inner_tz_id, t1.name, t3.transition_time, t2.offset, t2.is_dst, "
"t2.transition_type_id, t2.abbreviation, "
"row_number() over (partition by t1.inner_tz_id, t3.transition_time order by t2.transition_type_id) as tran_row_number "
"FROM (SELECT time_zone_id, row_number() over (order by time_zone_id) as inner_tz_id, name "
" FROM oceanbase.__all_time_zone_name "
" ORDER BY time_zone_id "
") t1 "
"JOIN oceanbase.__all_time_zone_transition_type t2 "
"ON t1.time_zone_id = t2.time_zone_id "
"LEFT JOIN oceanbase.__all_time_zone_transition t3 "
"ON t2.time_zone_id = t3.time_zone_id "
" AND t2.transition_type_id=t3.transition_type_id "
") tz_info WHERE tz_info.tran_row_number = 1 "
"ORDER BY tz_info.time_zone_id, tz_info.transition_time ";
const char *ObTimeZoneInfoManager::FETCH_TENANT_TZ_INFO_SQL =
"SELECT /*+ "
" BEGIN_OUTLINE_DATA "
" PQ_DISTRIBUTE_WINDOW(@\"SEL$0208448F\" (0) NONE PARTITION_SORT) "
" LEADING(@\"SEL$0208448F\" ((\"t1\"@\"SEL$2\" \"oceanbase\".\"t2\"@\"SEL$2\") \"oceanbase\".\"t3\"@\"SEL$2\")) "
" USE_HASH(@\"SEL$0208448F\" \"oceanbase\".\"t3\"@\"SEL$2\") "
" USE_HASH(@\"SEL$0208448F\" \"oceanbase\".\"t2\"@\"SEL$2\") "
" PQ_DISTRIBUTE_WINDOW(@\"SEL$3\" (0) NONE) "
" FULL(@\"SEL$3\" \"oceanbase\".\"__all_tenant_time_zone_name\"@\"SEL$3\") "
" FULL(@\"SEL$0208448F\" \"t2\"@\"SEL$2\") "
" FULL(@\"SEL$0208448F\" \"t3\"@\"SEL$2\") "
" PRED_DEDUCE(@\"SEL$2\") "
" QUERY_TIMEOUT(100000000) "
" OPTIMIZER_FEATURES_ENABLE('4.0.0.0') "
" END_OUTLINE_DATA */ * "
"FROM ("
"SELECT t1.time_zone_id, t1.inner_tz_id, t1.name, t3.transition_time, t2.offset, t2.is_dst, "
"t2.transition_type_id, t2.abbreviation, "
"row_number() over (partition by t1.inner_tz_id, t3.transition_time order by t2.transition_type_id) as tran_row_number "
"FROM (SELECT time_zone_id, row_number() over (order by time_zone_id) as inner_tz_id, name "
" FROM oceanbase.__all_tenant_time_zone_name "
" ORDER BY time_zone_id "
") t1 "
"JOIN oceanbase.__all_tenant_time_zone_transition_type t2 "
"ON t1.time_zone_id = t2.time_zone_id "
"LEFT JOIN oceanbase.__all_tenant_time_zone_transition t3 "
"ON t2.time_zone_id = t3.time_zone_id "
" AND t2.transition_type_id=t3.transition_type_id "
") tz_info WHERE tz_info.tran_row_number = 1 "
"ORDER BY tz_info.time_zone_id, tz_info.transition_time ";
const char *ObTimeZoneInfoManager::FETCH_LATEST_TZ_VERSION_SQL =
"SELECT value from oceanbase.__all_sys_stat where name = 'current_timezone_version'";
int ObTimeZoneInfoManager::init()
{
int ret = OB_SUCCESS;
if (OB_UNLIKELY(inited_)) {
ret = OB_INIT_TWICE;
LOG_WARN("init twice", K(ret));
} else {
ObMemAttr attr(OB_SERVER_TENANT_ID, "TZInfoMgrMap");
if (OB_FAIL(tz_info_map_buf_.init(attr))) {
LOG_WARN("init tz info map failed", K(ret), K(tenant_id_));
} else if (OB_FAIL(tz_info_map_.init(attr))) {
LOG_WARN("init tz info map failed", K(ret), K(tenant_id_));
} else {
inited_ = true;
}
}
return ret;
}
int ObTimeZoneInfoManager::update_time_zone_info(int64_t tz_info_version)
{
int ret = OB_SUCCESS;
if (OB_UNLIKELY(last_version_ < tz_info_version)) {
LOG_INFO("begin update time zone info", K(last_version_), K(tz_info_version));
if (OB_FAIL(fetch_time_zone_info())) {
LOG_WARN("fail to request tz_info", K(ret));
}
} else if (OB_UNLIKELY(-1 == last_version_)) {
is_usable_ = true;
LOG_INFO("set is_usable", K(last_version_), K(tz_info_version));
}
return ret;
}
bool ObTimeZoneInfoManager::FillRequestTZInfoResult::operator() (
ObTZIDKey key, ObTimeZoneInfoPos *tz_info)
{
int ret = OB_SUCCESS;
UNUSED(key);
if (OB_ISNULL(tz_info)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("tz info is NULL", K(tz_info));
} else if (OB_FAIL(tz_result_.tz_array_.push_back(*tz_info))) {
LOG_WARN("fail to serialize tz_info", KPC(tz_info), K(ret));
}
return OB_SUCCESS == ret;
}
int ObTimeZoneInfoManager::response_time_zone_info(ObRequestTZInfoResult &tz_result)
{
int ret = OB_SUCCESS;
if (OB_UNLIKELY(!inited_)) {
ret = OB_NOT_INIT;
LOG_WARN("not init", K(ret));
} else {
tz_result.tz_array_.reset();
tz_result.last_version_ = last_version_;
FillRequestTZInfoResult fr_func(tz_result);
if (OB_FAIL(tz_info_map_.id_map_->for_each(fr_func))) {
LOG_WARN("fail to call for_each", K(ret));
}
}
return ret;
}
void ObTimeZoneInfoManager::TaskProcessThread::handle(void *task)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(task)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("task is NULL", K(ret));
} else {
TZInfoTask *tz_info_task = static_cast<TZInfoTask *>(task);
if (OB_FAIL(tz_info_task->run_task())) {
LOG_WARN("fail to run task", K(ret));
}
}
}
int ObTimeZoneInfoManager::fetch_time_zone_info()
{
int ret = OB_SUCCESS;
if (OB_UNLIKELY(!inited_)) {
ret = OB_NOT_INIT;
LOG_WARN("not init", K(ret));
} else {
int64_t current_tz_version = -1;
ObSQLClientRetryWeak sql_client_retry_weak(&sql_proxy_, tenant_id_, OB_ALL_SYS_STAT_TID);
SMART_VAR(ObMySQLProxy::MySQLResult, res) {
sqlclient::ObMySQLResult *result = NULL;
if (OB_FAIL(sql_client_retry_weak.read(res, tenant_id_, FETCH_LATEST_TZ_VERSION_SQL))) {
LOG_WARN("fail to execute sql", K(ret), K(tenant_id_));
} else if (OB_ISNULL(result = res.get_result())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("fail to get result", K(result), K(ret));
} else if (OB_FAIL(result->next())) {
if (OB_ITER_END == ret) {
// all_sys_stat中没有timezone_version，说明处于升级过程中
ret = OB_SUCCESS;
} else {
LOG_WARN("ObMySQLResult next failed", K(ret));
}
} else {
ObString version_str;
EXTRACT_VARCHAR_FIELD_MYSQL(*result, "value", version_str);
bool is_valid = false;
current_tz_version = ObFastAtoi<int64_t>::atoi(version_str.ptr(),
version_str.ptr() + version_str.length(), is_valid);
if (!is_valid) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid key version", K(ret), K(version_str));
}
}
}
if (OB_FAIL(ret)) {
} else if (OB_FAIL(fetch_time_zone_info_from_tenant_table(current_tz_version))) {
LOG_WARN("fetch timezone info from tenant tz table failed", K(ret));
}
}
return ret;
}
// 使用sql
int ObTimeZoneInfoManager::fetch_time_zone_info_from_tenant_table(const int64_t current_tz_version)
{
int ret = OB_SUCCESS;
if (current_tz_version == last_version_) {
// already latest
} else if (current_tz_version < last_version_) {
LOG_ERROR("current timezone version lower than local tz map version, wierd",
K(tenant_id_), K(current_tz_version), K(last_version_));
} else {
ObSQLClientRetryWeak sql_client_retry_weak(&sql_proxy_, tenant_id_, OB_ALL_TENANT_TIME_ZONE_NAME_TID);
SMART_VAR(ObMySQLProxy::MySQLResult, res) {
sqlclient::ObMySQLResult *result = NULL;
if (OB_FAIL(sql_client_retry_weak.read(res, tenant_id_, FETCH_TENANT_TZ_INFO_SQL))){
LOG_WARN("fetch time zone data failed", K(ret));
} else if (OB_ISNULL(result = res.get_result())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("fail to get result", K(result), K(ret));
} else {
bool same_with_sys = false;
bool first_map = 1 == ATOMIC_AAF(&loaded_tz_info_count_, 1);
if (first_map) {
SpinWLockGuard wlock_guard(sys_rwlock_);
// the first tenant load timezone map into shared_tz_info_map_.
// Other tenants load timezone map into tz_info_map_buf_ and then cmp with shared_tz_info_map_.
ObMemAttr attr(OB_SERVER_TENANT_ID, "TZInfoMgrMap");
if (OB_FAIL(shared_tz_info_map_.init(attr))) {
LOG_WARN("init share tz info map failed", K(ret));
} else if (OB_FAIL(fill_tz_info_map(*result, shared_tz_info_map_, tenant_id_))) {
LOG_ERROR("fail to fill tz_info_map for shared map", K(ret), K(tenant_id_));
} else {
tz_info_map_.id_map_ = shared_tz_info_map_.id_map_;
tz_info_map_.name_map_ = shared_tz_info_map_.name_map_;
}
LOG_INFO("share tz info inited", K(ret), K(shared_tz_info_map_.id_map_),
K(shared_tz_info_map_.name_map_));
} else {
if (OB_FAIL(fill_tz_info_map(*result, tz_info_map_buf_, tenant_id_))) {
LOG_ERROR("fail to fill tz_info_map", K(ret));
} else {
same_with_sys = cmp_tz_info_map(shared_tz_info_map_, tz_info_map_buf_);
if (same_with_sys) {
// same with sys tenant, reset tz_info_map_buf_.
// if reset link hash map, memory of hash node will not be released, so use destroy.
tz_info_map_buf_.~ObTZInfoMap();
// Use destroyed ObTZInfoMap will lead to a crash.
// According to current design, upgrade timezone is not supported,
// so ObTZInfoMap will not be used again. This is a defense code.
new (&tz_info_map_buf_) ObTZInfoMap();
LOG_INFO("reset tz info map buf", K(tenant_id_));
tz_info_map_.id_map_ = shared_tz_info_map_.id_map_;
tz_info_map_.name_map_ = shared_tz_info_map_.name_map_;
} else {
tz_info_map_.id_map_ = tz_info_map_buf_.id_map_;
tz_info_map_.name_map_ = tz_info_map_buf_.name_map_;
}
}
}
if (OB_SUCC(ret)) {
last_version_ = current_tz_version;
LOG_INFO("success to fetch tz_info map", K(ret), K(last_version_), K(tenant_id_),
"new_last_version", current_tz_version, K(same_with_sys),
K(tz_info_map_.id_map_->size()), K(first_map));
}
}
}
}
if (OB_SUCC(ret) &&
OB_UNLIKELY(OB_SYS_TENANT_ID == tenant_id_ && false == OTTZ_MGR.is_usable())) {
OTTZ_MGR.set_usable();
}
return ret;
}
int ObTimeZoneInfoManager::set_tz_info_map(ObTimeZoneInfoPos *&stored_tz_info,
ObTimeZoneInfoPos &new_tz_info,
ObTZInfoMap &tz_info_map)
{
int ret = OB_SUCCESS;
ObTimeZoneInfoPos *tz_pos_value = NULL;
ObTZNameIDInfo *name_id_value = NULL;
bool is_equal = false;
lib::ObMemAttr attr1(OB_SERVER_TENANT_ID, "TZInfoArray");
if (NULL == stored_tz_info) {
if (OB_ISNULL(tz_pos_value = op_alloc(ObTimeZoneInfoPos))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("fail to alloc memory for ObTimeZoneInfoPos ", K(ret));
} else if (OB_ISNULL(name_id_value = op_alloc(ObTZNameIDInfo))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("fail to alloc memory for ObTZNameIDInfo ", K(ret));
} else if (FALSE_IT(tz_pos_value->set_tz_type_attr(attr1))) {
} else if (OB_FAIL(tz_pos_value->assign(new_tz_info))) {
LOG_WARN("fail to assign ObTimeZoneInfoPos", K(new_tz_info), K(ret));
} else if (FALSE_IT(name_id_value->set(new_tz_info.get_tz_id(), new_tz_info.get_tz_name()))) {
} else if (OB_FAIL(tz_info_map.id_map_->insert_and_get(new_tz_info.get_tz_id(), tz_pos_value))) {
LOG_WARN("fail to insert new_tz_info to tz_info_id_map", KPC(tz_pos_value), K(ret));
} else if (OB_FAIL(tz_info_map.name_map_->insert_and_get(new_tz_info.get_tz_name(), name_id_value))) {
tz_info_map.id_map_->revert(tz_pos_value);
tz_info_map.id_map_->del(new_tz_info.get_tz_id());
tz_pos_value = NULL;
LOG_WARN("fail to insert new_tz_info to tz_info_name_map_", K(name_id_value), K(ret));
} else {
tz_info_map.id_map_->revert(tz_pos_value);
tz_info_map.name_map_->revert(name_id_value);
LOG_INFO("succ to add new time zone info", K(&tz_info_map), K(&(tz_info_map.name_map_)),
KPC(name_id_value), KPC(tz_pos_value));
tz_pos_value = NULL;
name_id_value = NULL;
}
} else if (OB_FAIL(stored_tz_info->compare_upgrade(new_tz_info, is_equal))) {
LOG_WARN("fail to compare_upgrade", KPC(stored_tz_info), K(new_tz_info), K(ret));
} else if (is_equal) {
//do nothing
} else {
LOG_INFO("need to upgrade transition time", KPC(stored_tz_info), K(new_tz_info));
common::ObSArray<ObTZTransitionTypeInfo> &next_tz_tran_types = stored_tz_info->get_next_tz_tran_types();
common::ObSArray<ObTZRevertTypeInfo> &next_tz_revt_types = stored_tz_info->get_next_tz_revt_types();
if (OB_FAIL(next_tz_tran_types.assign(new_tz_info.get_tz_tran_types()))) {
LOG_WARN("fail to assign next_tz_tran_types", K(new_tz_info.get_tz_tran_types()), K(ret));
} else if (OB_FAIL(next_tz_revt_types.assign(new_tz_info.get_tz_revt_types()))) {
LOG_WARN("fail to assign next_tz_revt_types", K(new_tz_info.get_tz_revt_types()), K(ret));
} else {
stored_tz_info->inc_curr_idx();
}
}
if (OB_FAIL(ret)) {
if (NULL != tz_pos_value) {
op_free(tz_pos_value);
tz_pos_value = NULL;
}
if (NULL != name_id_value) {
op_free(name_id_value);
name_id_value = NULL;
}
}
return ret;
}
int ObTimeZoneInfoManager::prepare_tz_info(const ObIArray<ObTZTransitionTypeInfo> &types_with_null,
ObTimeZoneInfoPos &type_info)
{
int ret = OB_SUCCESS;
if (OB_FAIL(calc_default_tran_type(types_with_null, type_info))) {
LOG_WARN("fail to calc default transition type", K(ret));
} else if (OB_FAIL(type_info.calc_revt_types())) {
LOG_WARN("fail to calc revert types", K(ret));
}
return ret;
}
int ObTimeZoneInfoManager::calc_default_tran_type(const ObIArray<ObTZTransitionTypeInfo> &types_with_null,
ObTimeZoneInfoPos &type_info)
{
int ret = OB_SUCCESS;
int64_t type_count = types_with_null.count();
int64_t i = 0;
if (OB_UNLIKELY(type_count <= 0)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid type count", K(ret));
} else {
for (; i <type_count && types_with_null.at(i).is_dst(); ++i) { /*do nothing*/ }
i = (type_count == i ? 0 : i);
if (OB_FAIL(type_info.set_default_tran_type(types_with_null.at(i)))) {
LOG_WARN("fail to set default tran type", K(i), "default_tran_type", types_with_null.at(i), K(types_with_null),K(ret));
}
}
return ret;
}
int ObTimeZoneInfoManager::fill_tz_info_map(sqlclient::ObMySQLResult &result,
ObTZInfoMap &tz_info_map,
uint64_t tenant_id)
{
int ret = OB_SUCCESS;
ObString tz_name_str;
ObString tz_abbr_str;
int64_t tz_id = 0;
UNUSED(tz_id);
int64_t inner_tz_id = 0;
ObTZTransitionTypeInfo tz_tran_type;
ObTimeZoneInfoPos tz_info;
ObTimeZoneInfoPos *stored_tz_info = NULL;;
ObArray<ObTZTransitionTypeInfo> types_with_null;
bool is_tran_time_null = false;
while(OB_SUCC(ret) && OB_SUCC(result.next())) {
tz_tran_type.reset();
is_tran_time_null = false;
inner_tz_id = 0;
tz_name_str.reset();
tz_abbr_str.reset();
EXTRACT_INT_FIELD_MYSQL(result, "time_zone_id", tz_id, int64_t);
EXTRACT_UINT_FIELD_MYSQL(result, "inner_tz_id", inner_tz_id, int64_t);
EXTRACT_VARCHAR_FIELD_MYSQL(result, "name", tz_name_str)
EXTRACT_INT_FIELD_MYSQL(result, "transition_type_id", tz_tran_type.info_.tran_type_id_, int32_t);
EXTRACT_VARCHAR_FIELD_MYSQL(result, "abbreviation", tz_abbr_str)
EXTRACT_INT_FIELD_MYSQL(result, "offset", tz_tran_type.info_.offset_sec_, int32_t);
EXTRACT_BOOL_FIELD_MYSQL(result, "is_dst", tz_tran_type.info_.is_dst_);
if (OB_SUCC(ret)) {
int64_t int_value = 0;
if (OB_FAIL(result.get_int("transition_time", int_value))) {
//is NULL transition time
if (OB_ERR_NULL_VALUE == ret) {
ret = OB_SUCCESS;
is_tran_time_null = true;
} else {
LOG_WARN("fail to get column transition_time in row", K(ret));
}
} else {
tz_tran_type.lower_time_ = int_value;
}
}
if (OB_SUCC(ret)) {
if (tz_name_str.empty() || tz_name_str.length() >= OB_MAX_TZ_NAME_LEN) {
ret = OB_SIZE_OVERFLOW;
LOG_WARN("tz name size is overflow", K(tz_name_str), K(ret));
} else if (tz_abbr_str.empty() || tz_abbr_str.length() >= OB_MAX_TZ_ABBR_LEN) {
ret = OB_SIZE_OVERFLOW;
LOG_WARN("tz abbr size is overflow", K(tz_abbr_str), K(ret));
} else {
tz_tran_type.set_tz_abbr(tz_abbr_str);
}
}
LOG_DEBUG("succ to read one row", K(tz_tran_type), K(tz_id), K(inner_tz_id), K(tz_name_str), K(tz_abbr_str));
//set tz_info_map and create new tz_info
if (OB_FAIL(ret)) {
} else if (OB_UNLIKELY(!ObOTimestampData::is_valid_tz_id(static_cast<int32_t>(inner_tz_id)))
|| OB_UNLIKELY(!ObOTimestampData::is_valid_tran_type_id(tz_tran_type.info_.tran_type_id_))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid tz_id or tran_type_id", K(inner_tz_id), "tran_type_id", tz_tran_type.info_.tran_type_id_, K(ret));
} else if (inner_tz_id != tz_info.get_tz_id()) {
if (tz_info.is_valid()) {//not the first record
if (OB_FAIL(prepare_tz_info(types_with_null, tz_info))) {
LOG_WARN("fail to prepare prepare time zone info", K(tz_info), K(ret));
} else if (OB_FAIL(set_tz_info_map(stored_tz_info, tz_info, tz_info_map))) {
LOG_WARN("fail to set tz_info map", K(ret));
} else {
tz_info.reset();
types_with_null.reset();
tz_info_map.id_map_->revert(stored_tz_info);
stored_tz_info = NULL;
}
}
if (OB_FAIL(ret)) {
} else if (OB_FAIL(tz_info.set_tz_name(tz_name_str.ptr(), tz_name_str.length()))) {
LOG_WARN("fail to set tz_name", K(ret));
} else {
tz_info.set_tz_id(inner_tz_id);
}
if (OB_FAIL(ret)) {
} else if (OB_NOT_NULL(stored_tz_info)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("stored_tz_info should be null here", K(ret));
} else if (OB_FAIL(tz_info_map.get_tz_info_by_name(tz_name_str, stored_tz_info))) {
if (OB_ERR_UNKNOWN_TIME_ZONE == ret) {
LOG_DEBUG("fail to get stored_tz_info, it is a new tz info", K(tz_name_str), K(ret));
ret = OB_SUCCESS;
} else {
LOG_WARN("fail to get stored_tz_info", K(tz_name_str), K(ret));
}
} else if (OB_UNLIKELY(stored_tz_info->get_tz_id() != inner_tz_id)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("tz id should not changed", K(tz_name_str), KPC(stored_tz_info), K(inner_tz_id), K(ret));
}
}
//add transition_type to tz_info
if (OB_SUCC(ret)) {
if (OB_FAIL(types_with_null.push_back(tz_tran_type))) {
LOG_WARN("fail to push bak tz_tran_type", K(ret));
} else if (!is_tran_time_null && OB_FAIL(tz_info.add_tran_type_info(tz_tran_type))) {
LOG_WARN("fail to push bak tz_tran_type", K(ret));
} else {
LOG_DEBUG("succ to add tz_tran_type", K(tz_name_str), K(tz_tran_type));
}
}
}//while
//set last tz_info
ret = OB_ITER_END == ret ? OB_SUCCESS : ret;
if (OB_FAIL(ret)) {
LOG_WARN("fail to get_next row", K(ret));
} else if (tz_info.is_valid()) {
if (OB_FAIL(prepare_tz_info(types_with_null, tz_info))) {
LOG_WARN("fail to prepare prepare time zone info", K(tz_info), K(ret));
} else if (OB_FAIL(set_tz_info_map(stored_tz_info, tz_info, tz_info_map))) {
LOG_WARN("fail to set tz_info map", K(ret));
}
}
tz_info_map.id_map_->revert(stored_tz_info);
stored_tz_info = NULL;
return ret;
}
int ObTimeZoneInfoManager::find_time_zone_info(const common::ObString &tz_name, ObTimeZoneInfoPos &tz_info)
{
int ret = OB_SUCCESS;
if (OB_FAIL(tz_info_map_.get_tz_info_by_name(tz_name, tz_info))) {
LOG_WARN("fail to get time zone info", K(tz_name), K(ret));
if (OB_ENTRY_NOT_EXIST == ret) {
ret = OB_ERR_UNKNOWN_TIME_ZONE;
}
}
return ret;
}
bool ObTimeZoneInfoManager::cmp_tz_info_map(ObTZInfoMap &map1, ObTZInfoMap &map2)
{
bool same = true;
bool locked = false;
if (!(locked = sys_rwlock_.try_rdlock())) {
same = false;
} else if (map1.id_map_->size() != map2.id_map_->size() || map1.name_map_->size() != map2.name_map_->size()) {
same = false;
LOG_INFO("tz info map not same", K(map1.id_map_->size()), K(map2.id_map_->size()),
K(map1.name_map_->size()), K(map2.name_map_->size()));
}
if (same) {
// compare id map.
ObTZInfoIDPosMap::Iterator iter1(*map1.id_map_);
ObTZInfoIDPosMap::Iterator iter2(*map2.id_map_);
ObTimeZoneInfoPos *tz_pos1 = NULL;
ObTimeZoneInfoPos *tz_pos2 = NULL;
tz_pos1 = iter1.next(tz_pos1);
tz_pos2 = iter2.next(tz_pos2);
while (tz_pos1 != NULL && tz_pos2 != NULL && same) {
same = (*tz_pos1) == (*tz_pos2);
iter1.revert(tz_pos1);
iter2.revert(tz_pos2);
tz_pos1 = iter1.next(tz_pos1);
tz_pos2 = iter2.next(tz_pos2);
}
iter1.revert(tz_pos1);
iter2.revert(tz_pos2);
same = same && (NULL == tz_pos1) && (NULL == tz_pos2);
}
if (same) {
// compare name map.
ObTZInfoNameIDMap::Iterator iter1(*map1.name_map_);
ObTZInfoNameIDMap::Iterator iter2(*map2.name_map_);
ObTZNameIDInfo *tz_id_info1 = NULL;
ObTZNameIDInfo *tz_id_info2 = NULL;
tz_id_info1 = iter1.next(tz_id_info1);
tz_id_info2 = iter2.next(tz_id_info2);
while (tz_id_info1 != NULL && tz_id_info2 != NULL && same) {
same = (*tz_id_info1) == (*tz_id_info2);
iter1.revert(tz_id_info1);
iter2.revert(tz_id_info2);
tz_id_info1 = iter1.next(tz_id_info1);
tz_id_info2 = iter2.next(tz_id_info2);
}
iter1.revert(tz_id_info1);
iter2.revert(tz_id_info2);
same = same && (NULL == tz_id_info1) && (NULL == tz_id_info2);
}
if (locked) {
sys_rwlock_.unlock();
}
return same;
}
OB_SERIALIZE_MEMBER(ObRequestTZInfoArg, obs_addr_, tenant_id_);
OB_SERIALIZE_MEMBER(ObRequestTZInfoResult, last_version_, tz_array_);
}//common
}//oceanbase
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