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7000 lines (6628 loc) · 264 KB
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/*
* Copyright (c) 2025 OceanBase.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define USING_LOG_PREFIX SQL_SESSION
#include "ob_basic_session_info.h"
#include "sql/plan_cache/ob_prepare_stmt_struct.h"
#include "observer/omt/ob_tenant_timezone_mgr.h"
#include "share/system_variable/ob_nls_system_variable.h"
#include "pl/ob_pl_package_state.h"
#include "rpc/obmysql/ob_sql_sock_session.h"
#include "sql/engine/expr/ob_expr_regexp_context.h"
#include "lib/stat/ob_diagnostic_info_container.h"
#include "observer/ob_server.h"
#include "share/catalog/ob_catalog_utils.h"
using namespace oceanbase::common;
using namespace oceanbase::share;
using namespace oceanbase::share::schema;
using namespace oceanbase::transaction;
namespace oceanbase
{
namespace sql
{
ObBasicSessionInfo::SysVarsCacheData ObBasicSessionInfo::SysVarsCache::base_data_;
ObBasicSessionInfo::ObBasicSessionInfo(const uint64_t tenant_id)
: orig_tenant_id_(tenant_id),
tenant_session_mgr_(NULL),
query_mutex_(common::ObLatchIds::SESSION_QUERY_LOCK),
thread_data_mutex_(common::ObLatchIds::SESSION_THREAD_DATA_LOCK),
is_valid_(true),
is_deserialized_(false),
tenant_id_(OB_INVALID_ID),
effective_tenant_id_(OB_INVALID_ID),
rpc_tenant_id_(0),
is_changed_to_temp_tenant_(false),
user_id_(OB_INVALID_ID),
client_version_(),
driver_version_(),
sessid_(0),
master_sessid_(INVALID_SESSID),
client_sessid_(INVALID_SESSID),
client_create_time_(0),
proxy_sessid_(VALID_PROXY_SESSID),
global_vars_version_(0),
sys_var_base_version_(OB_INVALID_VERSION),
tx_desc_(NULL),
tx_result_(),
reserved_read_snapshot_version_(),
xid_(),
associated_xa_(false),
cached_tenant_config_version_(0),
sess_bt_buff_pos_(0),
sess_ref_cnt_(0),
sess_ref_seq_(0),
block_allocator_(SMALL_BLOCK_SIZE, common::OB_MALLOC_NORMAL_BLOCK_SIZE - 32,
// Here subtracting 32 is to adapt to the ObMalloc alignment rule, preventing memory allocation exceeding 8k
ObMalloc(lib::ObMemAttr(orig_tenant_id_, ObModIds::OB_SQL_SESSION_SBLOCK))),
ps_session_info_allocator_(sizeof(ObPsSessionInfo), common::OB_MALLOC_NORMAL_BLOCK_SIZE - 32,
// Here subtracting 32 is to adapt to the ObMalloc alignment rule, preventing memory allocation exceeding 8k
ObMalloc(lib::ObMemAttr(orig_tenant_id_, "PsSessionInfo"))),
cursor_info_allocator_(sizeof(pl::ObDbmsCursorInfo), common::OB_MALLOC_NORMAL_BLOCK_SIZE - 32,
ObMalloc(lib::ObMemAttr(orig_tenant_id_, "SessCursorInfo"))),
package_info_allocator_(sizeof(pl::ObPLPackageState), common::OB_MALLOC_NORMAL_BLOCK_SIZE - 32,
ObMalloc(lib::ObMemAttr(orig_tenant_id_, "SessPackageInfo"))),
sess_level_name_pool_(lib::ObMemAttr(orig_tenant_id_, ObModIds::OB_SQL_SESSION), OB_MALLOC_NORMAL_BLOCK_SIZE),
conn_level_name_pool_(lib::ObMemAttr(orig_tenant_id_, ObModIds::OB_SQL_SESSION), OB_MALLOC_NORMAL_BLOCK_SIZE),
json_pl_mngr_(0),
trans_flags_(),
sql_scope_flags_(),
need_reset_package_(false),
base_sys_var_alloc_(ObMemAttr(orig_tenant_id_, ObModIds::OB_SQL_SESSION), OB_MALLOC_NORMAL_BLOCK_SIZE),
inc_sys_var_alloc1_(ObMemAttr(orig_tenant_id_, ObModIds::OB_SQL_SESSION), OB_MALLOC_NORMAL_BLOCK_SIZE),
inc_sys_var_alloc2_(ObMemAttr(orig_tenant_id_, ObModIds::OB_SQL_SESSION), OB_MALLOC_NORMAL_BLOCK_SIZE),
current_buf_index_(0),
bucket_allocator_wrapper_(&block_allocator_),
user_var_val_map_(SMALL_BLOCK_SIZE, ObWrapperAllocator(&block_allocator_), orig_tenant_id_),
influence_plan_var_indexs_(),
is_first_gen_(true),
is_first_gen_config_(true),
sys_var_fac_(orig_tenant_id_),
next_frag_mem_point_(OB_MALLOC_NORMAL_BLOCK_SIZE), // 8KB
sys_vars_encode_max_size_(0),
consistency_level_(INVALID_CONSISTENCY),
tz_info_wrap_(),
next_tx_read_only_(-1),
next_tx_isolation_(transaction::ObTxIsolationLevel::INVALID),
is_diagnosis_enabled_(false),
diagnosis_limit_num_(0),
log_id_level_map_valid_(false),
cur_phy_plan_(NULL),
plan_id_(0),
last_plan_id_(0),
plan_hash_(0),
flt_vars_(),
capability_(),
proxy_capability_(),
client_mode_(OB_MIN_CLIENT_MODE),
changed_sys_vars_(),
changed_user_vars_(),
changed_var_pool_(ObMemAttr(orig_tenant_id_, ObModIds::OB_SQL_SESSION), OB_MALLOC_NORMAL_BLOCK_SIZE),
extra_info_allocator_(ObMemAttr(orig_tenant_id_, ObModIds::OB_SQL_SESSION), OB_MALLOC_NORMAL_BLOCK_SIZE),
is_database_changed_(false),
feedback_manager_(),
trans_spec_status_(TRANS_SPEC_NOT_SET),
debug_sync_actions_(),
partition_hit_(),
magic_num_(0x13572468),
current_execution_id_(-1),
database_id_(OB_INVALID_ID),
retry_info_(),
last_query_trace_id_(),
nested_count_(-1),
inf_pc_configs_(),
curr_trans_last_stmt_end_time_(0),
check_sys_variable_(true),
acquire_from_pool_(false),
release_to_pool_(true),
is_tenant_killed_(0),
reused_count_(0),
first_need_txn_stmt_type_(stmt::T_NONE),
need_recheck_txn_readonly_(false),
exec_min_cluster_version_(GET_MIN_CLUSTER_VERSION()),
stmt_type_(stmt::T_NONE),
thread_id_(0),
is_password_expired_(false),
process_query_time_(0),
last_update_tz_time_(0),
is_client_sessid_support_(false),
is_feedback_proxy_info_support_(false),
use_rich_vector_format_(false),
last_refresh_schema_version_(OB_INVALID_VERSION),
force_rich_vector_format_(ForceRichFormatStatus::Disable),
config_use_rich_format_(true),
sys_var_config_hash_val_(0),
is_real_inner_session_(false)
{
thread_data_.reset();
MEMSET(sys_vars_, 0, sizeof(sys_vars_));
log_id_level_map_.reset_level();
CHAR_CARRAY_INIT(tenant_);
CHAR_CARRAY_INIT(effective_tenant_);
CHAR_CARRAY_INIT(trace_id_buff_);
sql_id_[0] = '\0';
ssl_cipher_buff_[0] = '\0';
sess_bt_buff_[0] = '\0';
inc_sys_var_alloc_[0] = &inc_sys_var_alloc1_;
inc_sys_var_alloc_[1] = &inc_sys_var_alloc2_;
influence_plan_var_indexs_.set_attr(ObMemAttr(orig_tenant_id_, "PlanVaIdx"));
thread_name_[0] = '\0';
}
ObBasicSessionInfo::~ObBasicSessionInfo()
{
destroy();
}
bool ObBasicSessionInfo::is_server_status_in_transaction() const
{
bool in_txn = OB_NOT_NULL(tx_desc_) && tx_desc_->in_tx_for_free_route();
LOG_DEBUG("decide flag: server in transaction", K(in_txn));
return in_txn;
}
//for test
int ObBasicSessionInfo::test_init(uint32_t sessid, uint64_t proxy_sessid,
common::ObIAllocator *bucket_allocator)
{
int ret = OB_SUCCESS;
if (NULL != bucket_allocator) {
bucket_allocator_wrapper_.set_alloc(bucket_allocator);
}
ret = user_var_val_map_.init(1024 * 1024 * 2,
256, // # of user variables
(NULL == bucket_allocator ? NULL : &bucket_allocator_wrapper_));
if (OB_FAIL(ret)) {
LOG_WARN("fail to init user_var_val_map", K(ret));
} else if (OB_FAIL(load_default_configs_in_pc())) {
LOG_WARN("fail to load default config influence plan cache", K(ret));
} else if (OB_FAIL(debug_sync_actions_.init(SMALL_BLOCK_SIZE, bucket_allocator_wrapper_))) {
LOG_WARN("fail to init debug sync actions", K(ret));
} else if (OB_FAIL(set_session_state(SESSION_INIT))) {
LOG_WARN("fail to set session stat", K(ret));
} else if (OB_FAIL(set_time_zone(ObString("+8:00"), is_oracle_compatible(),
true/* check_timezone_valid */))) {
LOG_WARN("fail to set time zone", K(ret));
} else {
// tz_info_wrap_.set_tz_info_map(GCTX.tz_info_mgr_->get_tz_info_map());
sessid_ = sessid;
proxy_sessid_ = proxy_sessid;
}
return ret;
}
bool ObBasicSessionInfo::is_use_inner_allocator() const
{
return bucket_allocator_wrapper_.get_alloc() == &block_allocator_;
}
int ObBasicSessionInfo::init(uint32_t sessid, uint64_t proxy_sessid,
common::ObIAllocator *bucket_allocator, const ObTZInfoMap *tz_info)
{
int ret = OB_SUCCESS;
ObWrapperAllocator *user_var_allocator_wrapper = NULL;
if (is_acquire_from_pool()) {
reused_count_++;
if (OB_NOT_NULL(bucket_allocator) || !is_use_inner_allocator()) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("session from pool must use inner allocator", K(ret));
}
} else {
if (NULL != bucket_allocator) {
bucket_allocator_wrapper_.set_alloc(bucket_allocator);
user_var_allocator_wrapper = &bucket_allocator_wrapper_;
}
}
if (OB_FAIL(ret)) {
} else if (!is_acquire_from_pool() &&
OB_FAIL(user_var_val_map_.init(1024 * 1024 * 2, 256, user_var_allocator_wrapper))) {
LOG_WARN("fail to init user_var_val_map", K(ret));
} else if (!is_acquire_from_pool() &&
OB_FAIL(debug_sync_actions_.init(SMALL_BLOCK_SIZE, bucket_allocator_wrapper_))) {
LOG_WARN("fail to init debug sync actions", K(ret));
} else if (OB_FAIL(set_session_state(SESSION_INIT))) {
LOG_WARN("fail to set session stat", K(ret));
/* } else if (FALSE_IT(tx_result_.set_trans_desc(&trans_desc_))) { */
} else {
sessid_ = sessid;
proxy_sessid_ = proxy_sessid;
uint64_t tenant_id = tenant_id_;
if (OB_ISNULL(tz_info)) {
ObTZMapWrap tz_map_wrap;
if (OB_FAIL(OTTZ_MGR.get_tenant_tz(tenant_id, tz_map_wrap))) {
LOG_WARN("get tenant timezone map failed", K(ret));
} else {
tz_info_wrap_.set_tz_info_map(tz_map_wrap.get_tz_map());
}
} else {
tz_info_wrap_.set_tz_info_map(tz_info);
}
}
return ret;
}
void ObBasicSessionInfo::destroy()
{
if (magic_num_ != 0x13572468) {
LOG_ERROR_RET(OB_ERROR, "ObBasicSessionInfo may be double free!!!", K(magic_num_));
}
if (OB_NOT_NULL(tx_desc_)) {
LOG_ERROR_RET(OB_ERR_UNEXPECTED, "tx_desc != NULL", KPC(this), KPC_(tx_desc));
}
tx_desc_ = NULL;
tx_result_.reset();
xid_.reset();
associated_xa_ = false;
cached_tenant_config_version_ = 0;
magic_num_ = 0x86427531;
if (thread_data_.cur_query_ != nullptr) {
ob_free(thread_data_.cur_query_);
thread_data_.cur_query_ = nullptr;
thread_data_.cur_query_buf_len_ = 0;
}
if (thread_data_.top_query_ != nullptr) {
ob_free(thread_data_.top_query_);
thread_data_.top_query_ = nullptr;
thread_data_.top_query_buf_len_ = 0;
}
total_stmt_tables_.reset();
cur_stmt_tables_.reset();
}
void ObBasicSessionInfo::clean_status()
{
trans_flags_.reset();
sql_scope_flags_.reset();
trans_spec_status_ = TRANS_SPEC_NOT_SET;
if (OB_NOT_NULL(tx_desc_)) {
LockGuard lock_guard(thread_data_mutex_);
int ret = OB_SUCCESS;
MAKE_TENANT_SWITCH_SCOPE_GUARD(guard);
if (OB_SUCC(guard.switch_to(tx_desc_->get_tenant_id(), false))) {
MTL(transaction::ObTransService*)->release_tx(*tx_desc_);
}
tx_desc_ = NULL;
}
xid_.reset();
associated_xa_ = false;
cached_tenant_config_version_ = 0;
set_valid(true);
thread_data_.cur_query_start_time_ = 0;
thread_data_.cur_query_len_ = 0;
thread_data_.top_query_len_ = 0;
thread_data_.last_active_time_ = ObTimeUtility::current_time();
reset_session_changed_info();
}
void ObBasicSessionInfo::reset_user_var()
{
user_var_val_map_.reuse();
}
int ObBasicSessionInfo::reset_sys_vars()
{
int ret = OB_SUCCESS;
ObSchemaGetterGuard schema_guard;
ObObj oracle_mode;
ObObj oracle_sql_mode;
const bool print_info_log = true;
const bool is_sys_tenant = true;
// Clean up sys_var information
memset(sys_vars_, 0, sizeof(sys_vars_));
influence_plan_var_indexs_.reset();
sys_vars_cache_.reset();
sys_var_inc_info_.reset();
if (!sys_var_in_pc_str_.empty()) {
sys_var_in_pc_str_.set_length(0);
}
conn_level_name_pool_.reset();
inc_sys_var_alloc1_.reset();
inc_sys_var_alloc2_.reset();
base_sys_var_alloc_.reset();
sys_var_fac_.destroy();
// load system tenant variables
OZ (load_default_sys_variable(print_info_log, is_sys_tenant));
// load current tenant variables
OZ (GCTX.schema_service_->get_tenant_schema_guard(effective_tenant_id_, schema_guard,
OB_INVALID_VERSION));
OZ (load_all_sys_vars(schema_guard));
if (OB_FAIL(ret) && is_schema_error(ret)) {
ret = OB_ERR_WAIT_REMOTE_SCHEMA_REFRESH;
}
// Special variable processing
OZ (update_sys_variable(share::SYS_VAR_NLS_DATE_FORMAT,
ObTimeConverter::COMPAT_OLD_NLS_DATE_FORMAT));
OZ (update_sys_variable(share::SYS_VAR_NLS_TIMESTAMP_FORMAT,
ObTimeConverter::COMPAT_OLD_NLS_TIMESTAMP_FORMAT));
OZ (update_sys_variable(share::SYS_VAR_NLS_TIMESTAMP_TZ_FORMAT,
ObTimeConverter::COMPAT_OLD_NLS_TIMESTAMP_TZ_FORMAT));
return ret;
}
void ObBasicSessionInfo::reset(bool skip_sys_var)
{
set_valid(false);
if (OB_NOT_NULL(tx_desc_)) {
int ret = OB_SUCCESS;
MAKE_TENANT_SWITCH_SCOPE_GUARD(guard);
if (OB_SUCC(guard.switch_to(tx_desc_->get_tenant_id(), false))) {
MTL(transaction::ObTransService*)->release_tx(*tx_desc_);
} else {
LOG_WARN("tenant env not exist, force release tx", KP(tx_desc_), K(tx_desc_->get_tx_id()));
transaction::ObTransService::force_release_tx_when_session_destroy(*tx_desc_);
}
tx_desc_ = NULL;
}
xid_.reset();
associated_xa_ = false;
cached_tenant_config_version_ = 0;
is_deserialized_ = false;
CHAR_CARRAY_INIT(tenant_);
tenant_id_ = OB_INVALID_ID;
CHAR_CARRAY_INIT(effective_tenant_);
effective_tenant_id_ = OB_INVALID_ID;
is_changed_to_temp_tenant_ = false;
user_id_ = OB_INVALID_ID;
client_version_.reset();
driver_version_.reset();
sessid_ = 0;
master_sessid_ = INVALID_SESSID;
client_sessid_ = INVALID_SESSID;
client_create_time_ = 0,
proxy_sessid_ = VALID_PROXY_SESSID;
global_vars_version_ = 0;
tx_result_.reset();
total_stmt_tables_.reset();
cur_stmt_tables_.reset();
// reset() of user_var_val_map_ and debug_sync_actions_ will keep some memory
// allocated from block_allocator_ / bucket_allocator_wrapper_, so we skip
// reset() of block_allocator_ and bucket_allocator_wrapper_.
//block_allocator_.reset();
ps_session_info_allocator_.reset();
cursor_info_allocator_.reset();
package_info_allocator_.reset();
trans_flags_.reset();
sql_scope_flags_.reset();
need_reset_package_ = false;
//bucket_allocator_wrapper_.reset();
user_var_val_map_.reuse();
if (!skip_sys_var) {
memset(sys_vars_, 0, sizeof(sys_vars_));
influence_plan_var_indexs_.reset();
} else {
const SysVarIds &all_sys_var_ids = sys_var_inc_info_.get_all_sys_var_ids();
for (int i = 0; i < all_sys_var_ids.count(); i++) {
int ret = OB_SUCCESS;
int64_t store_idx = -1;
ObSysVarClassType sys_var_id = all_sys_var_ids.at(i);
OZ (ObSysVarFactory::calc_sys_var_store_idx(sys_var_id, store_idx));
OV (0 <= store_idx && store_idx < ObSysVarFactory::ALL_SYS_VARS_COUNT);
OV (OB_NOT_NULL(sys_vars_[store_idx]));
OX (sys_vars_[store_idx]->clean_inc_value());
}
// I don't see any reason why we should reset timezone
// reset_timezone();
}
sys_var_inc_info_.reset();
sys_var_in_pc_str_.reset();
config_in_pc_str_.reset();
flt_vars_.reset();
is_first_gen_ = true;
is_first_gen_config_ = true;
CHAR_CARRAY_INIT(trace_id_buff_);
CHAR_CARRAY_INIT(sql_id_);
char *sql_id = sql_id_;
sql_id = NULL;
//consistency_level_ = INVALID_CONSISTENCY;
next_tx_read_only_ = -1;
next_tx_isolation_ = transaction::ObTxIsolationLevel::INVALID;
enable_mysql_compatible_dates_ = false;
is_diagnosis_enabled_ = false;
diagnosis_limit_num_ = 0;
log_id_level_map_valid_ = false;
log_id_level_map_.reset_level();
cur_phy_plan_ = NULL;
plan_id_ = 0;
last_plan_id_ = 0;
plan_hash_ = 0;
capability_.capability_ = 0;
proxy_capability_.capability_ = 0;
client_attribute_capability_.capability_ = 0;
client_mode_ = OB_MIN_CLIENT_MODE;
reset_session_changed_info();
extra_info_allocator_.reset();
trans_spec_status_ = TRANS_SPEC_NOT_SET;
debug_sync_actions_.reset();
partition_hit_.reset();
//magic_num_ = 0x86427531;
current_execution_id_ = -1;
last_trace_id_.reset();
curr_trace_id_.reset();
app_trace_id_.reset();
database_id_ = OB_INVALID_ID;
retry_info_.reset();
last_query_trace_id_.reset();
thread_data_.reset();
nested_count_ = -1;
// session caching scenario, only retain base value, clear inc value
// Remove sys var schema version, the base value is then the hardcoded value
if (!skip_sys_var) {
sys_vars_cache_.reset();
sys_var_base_version_ = OB_INVALID_VERSION;
} else {
sys_vars_cache_.clean_inc();
sys_var_base_version_ = CACHED_SYS_VAR_VERSION;
}
curr_trans_last_stmt_end_time_ = 0;
reserved_read_snapshot_version_.reset();
check_sys_variable_ = true;
acquire_from_pool_ = false;
// Do not reset release_to_pool_, reason see the comment at the property declaration location.
is_tenant_killed_ = 0;
first_need_txn_stmt_type_ = stmt::T_NONE;
need_recheck_txn_readonly_ = false;
exec_min_cluster_version_ = GET_MIN_CLUSTER_VERSION();
thread_id_ = 0;
is_password_expired_ = false;
process_query_time_ = 0;
last_update_tz_time_ = 0;
is_client_sessid_support_ = false;
is_feedback_proxy_info_support_ = false;
use_rich_vector_format_ = true;
force_rich_vector_format_ = ForceRichFormatStatus::Disable;
sess_bt_buff_pos_ = 0;
ATOMIC_SET(&sess_ref_cnt_ , 0);
// Finally reset all allocator
// Otherwise thread_data_.user_name_ such properties will have dangling pointers, which may cause core dump when iterating through the session_mgr's foreach interface.
sess_level_name_pool_.reset();
conn_level_name_pool_.reset();
inc_sys_var_alloc1_.reset();
inc_sys_var_alloc2_.reset();
current_buf_index_ = 0;
if (!skip_sys_var) {
base_sys_var_alloc_.reset();
sys_var_fac_.destroy();
}
client_identifier_.reset();
last_refresh_schema_version_ = OB_INVALID_VERSION;
config_use_rich_format_ = true;
sys_var_config_hash_val_ = 0;
is_real_inner_session_ = false;
}
int ObBasicSessionInfo::reset_timezone()
{
int ret = OB_SUCCESS;
ObObj tmp_obj1;
if (OB_FAIL(get_sys_variable(SYS_VAR_TIME_ZONE, tmp_obj1))) {
LOG_WARN("get sys var failed", K(ret));
} else if (OB_FAIL(process_session_time_zone_value(tmp_obj1, false))) {
LOG_WARN("set time zone failed", K(ret));
}
ObObj tmp_obj2;
if (OB_FAIL(ret)) {
} else if (OB_FAIL(get_sys_variable(SYS_VAR_ERROR_ON_OVERLAP_TIME, tmp_obj2))) {
LOG_WARN("get sys var failed", K(ret));
} else if (OB_FAIL(process_session_overlap_time_value(tmp_obj2))) {
LOG_WARN("process session overlap time value failed", K(ret), K(tmp_obj2));
}
return ret;
}
int ObBasicSessionInfo::init_tenant(const ObString &tenant_name, const uint64_t tenant_id)
{
int ret = OB_SUCCESS;
if (OB_UNLIKELY(!is_valid_tenant_id(tenant_id))) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid tenant id", K(tenant_id), K(ret));
} else if (tenant_name.empty()) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("tenant name is empty", K(tenant_name), K(ret));
} else if (tenant_name.length() > OB_MAX_TENANT_NAME_LENGTH) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("tenant name too long", K(tenant_name), K(ret));
} else if (OB_FAIL(ob_cstrcopy(tenant_, sizeof(tenant_), tenant_name))) {
LOG_WARN("failed to copy tenant name", K(tenant_name), K(ret));
} else if (OB_FAIL(ob_cstrcopy(effective_tenant_, sizeof(effective_tenant_), tenant_name))) {
LOG_WARN("failed to copy effective tenant name", K(tenant_name), K(ret));
} else {
ObTZMapWrap tz_map_wrap;
if (OB_FAIL(OTTZ_MGR.get_tenant_tz(tenant_id, tz_map_wrap))) {
LOG_WARN("get tenant timezone map failed", K(ret));
} else {
tz_info_wrap_.set_tz_info_map(tz_map_wrap.get_tz_map());
tenant_id_ = tenant_id;
effective_tenant_id_ = tenant_id;
LOG_DEBUG("init session tenant", K(tenant_name), K(tenant_id));
}
}
return ret;
}
int ObBasicSessionInfo::set_tenant(const common::ObString &tenant_name, const uint64_t tenant_id)
{
int ret = OB_SUCCESS;
if (!is_valid_tenant_id(tenant_id)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid tenant id", K(tenant_id), K(ret));
} else if (tenant_name.empty()) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("tenant name is empty", K(tenant_name), K(ret));
} else if (tenant_name.length() > OB_MAX_TENANT_NAME_LENGTH) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("tenant name too long", K(tenant_name), K(ret));
} else if (OB_FAIL(ob_cstrcopy(tenant_, sizeof(tenant_), tenant_name))) {
LOG_WARN("tenant name too long", K(tenant_name));
} else {
tenant_id_ = tenant_id;
LOG_TRACE("set tenant", K(tenant_name), K(tenant_id));
}
return ret;
}
int ObBasicSessionInfo::switch_tenant_with_name(
uint64_t effective_tenant_id, const common::ObString &tenant_name)
{
int ret = OB_SUCCESS;
if (!is_valid_tenant_id(effective_tenant_id)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid tenant id", K(ret), K(effective_tenant_id));
} else if (tenant_name.empty()) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("tenant name is empty", K(ret), K(tenant_name));
} else if (tenant_name.length() > OB_MAX_TENANT_NAME_LENGTH) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("tenant name too long", K(ret), K(tenant_name));
} else if (OB_FAIL(switch_tenant(effective_tenant_id))) {
LOG_WARN("fail to switch tenant", K(ret), K(effective_tenant_id));
} else if (OB_FAIL(ob_cstrcopy(effective_tenant_, sizeof(effective_tenant_), tenant_name))) {
LOG_WARN("tenant name too long", K(ret), K(tenant_name));
}
return ret;
}
int ObBasicSessionInfo::switch_tenant(uint64_t effective_tenant_id)
{
int ret = OB_SUCCESS;
if (OB_SYS_TENANT_ID != tenant_id_) {
ret = OB_NOT_SUPPORTED;
LOG_USER_ERROR(OB_NOT_SUPPORTED, "switching tenant from a non-sys tenant");
LOG_WARN("only support sys tenant switch tenant", K(ret), K(tenant_id_), K(effective_tenant_id_));
} else if (effective_tenant_id <= 0) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid tenant_id", K(ret), K(effective_tenant_id));
} else if (OB_NOT_NULL(tx_desc_) && effective_tenant_id != effective_tenant_id_) {
if (tx_desc_->in_tx_or_has_extra_state()) {
ret = OB_NOT_SUPPORTED;
// only inner-SQL goes switch_tenant and may fall into such state
// print out error to easy trouble-shot
LOG_USER_ERROR(OB_NOT_SUPPORTED,
"try to switch to another tenant without commit/rollback in a transaction");
LOG_ERROR("try to switch another tenant while session has active txn,"
" you must commit/rollback first", K(ret),
"current_effective_tenant_id", effective_tenant_id_,
"target_effective_tenant_id", effective_tenant_id,
KPC(tx_desc_), KPC(this));
} else if (OB_FAIL(ObSqlTransControl::reset_session_tx_state(this))) {
LOG_WARN("reset session tx state fail", K(ret), KPC(this));
}
}
if (OB_SUCC(ret)) {
#ifndef NDEBUG
if (effective_tenant_id_ != effective_tenant_id) {
LOG_INFO("switch tenant",
"target_effective_tenant_id", effective_tenant_id,
"current_effective_tenant_id", effective_tenant_id_,
"priv_tenant_id", tenant_id_,
K(lbt()));
}
#endif
effective_tenant_id_ = effective_tenant_id;
}
return ret;
}
const common::ObString ObBasicSessionInfo::get_tenant_name() const
{
return ObString::make_string(tenant_);
}
const common::ObString ObBasicSessionInfo::get_effective_tenant_name() const
{
return ObString::make_string(effective_tenant_);
}
int ObBasicSessionInfo::set_user(const ObString &user_name, const ObString &host_name, const uint64_t user_id)
{
int ret = OB_SUCCESS;
if (OB_UNLIKELY(user_name.length() > common::OB_MAX_USER_NAME_LENGTH)
|| OB_UNLIKELY(host_name.length() > common::OB_MAX_HOST_NAME_LENGTH)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("name length invalid_", K(user_name), K(host_name), K(ret));
} else {
char tmp_buf[common::OB_MAX_USER_NAME_LENGTH + common::OB_MAX_HOST_NAME_LENGTH + 2] = {};
snprintf(tmp_buf, sizeof(tmp_buf), "%.*s@%.*s", user_name.length(), user_name.ptr(),
host_name.length(), host_name.ptr());
ObString tmp_string(tmp_buf);
LockGuard lock_guard(thread_data_mutex_);
if (OB_FAIL(sess_level_name_pool_.write_string(user_name, &thread_data_.user_name_))) {
LOG_WARN("fail to write username to string_buf_", K(user_name), K(ret));
} else if (OB_FAIL(sess_level_name_pool_.write_string(host_name, &thread_data_.host_name_))) {
LOG_WARN("fail to write hostname to string_buf_", K(host_name), K(ret));
} else if (OB_FAIL(sess_level_name_pool_.write_string(tmp_string, &thread_data_.user_at_host_name_))) {
LOG_WARN("fail to write user_at_host_name to string_buf_", K(tmp_string), K(ret));
} else {
user_id_ = user_id;
GET_DIAGNOSTIC_INFO->get_ash_stat().user_id_ = get_user_id();
}
}
return ret;
}
int ObBasicSessionInfo::set_real_client_ip_and_port(const common::ObString &client_ip, int32_t client_addr_port)
{
int ret = OB_SUCCESS;
char tmp_buf[common::OB_MAX_USER_NAME_LENGTH + common::OB_MAX_HOST_NAME_LENGTH + 2] = {};
snprintf(tmp_buf, sizeof(tmp_buf), "%.*s@%.*s", thread_data_.user_name_.length(),
thread_data_.user_name_.ptr(),
client_ip.length(),
client_ip.ptr());
ObString tmp_string(tmp_buf);
LockGuard lock_guard(thread_data_mutex_);
if (OB_FAIL(sess_level_name_pool_.write_string(client_ip, &thread_data_.client_ip_))) {
LOG_WARN("fail to write client_ip to string_buf_", K(client_ip), K(ret));
} else if (OB_FAIL(sess_level_name_pool_.write_string(tmp_string,
&thread_data_.user_at_client_ip_))) {
LOG_WARN("fail to write user_at_host_name to string_buf_", K(tmp_string), K(ret));
} else {
thread_data_.client_addr_port_ = client_addr_port;
thread_data_.user_client_addr_.set_ip_addr(client_ip, client_addr_port);
}
return ret;
}
int ObBasicSessionInfo::set_client_identifier(const common::ObString &client_identifier)
{
int ret = OB_SUCCESS;
int max_size = OB_MAX_CONTEXT_CLIENT_IDENTIFIER_LENGTH_IN_SESSION;
if (OB_FAIL(init_client_identifier())) {
LOG_WARN("failed to init client identifier", K(ret));
} else {
//reset curr identifier
client_identifier_.set_length(0);
//write new string
int64_t write_len = std::min(client_identifier_.size(), client_identifier.length());
if (write_len != client_identifier_.write(client_identifier.ptr(), write_len)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("failed to write client identifier", K(ret), K(client_identifier_), K(write_len));
}
}
return ret;
}
int ObBasicSessionInfo::init_client_identifier()
{
int ret = OB_SUCCESS;
int max_size = OB_MAX_CONTEXT_CLIENT_IDENTIFIER_LENGTH_IN_SESSION;
if (OB_ISNULL(client_identifier_.ptr())) {
char *ptr = nullptr;
if (OB_ISNULL(ptr = static_cast<char *> (get_session_allocator().alloc(max_size)))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("failed to alloc mem for client identifier", K(ret));
} else {
client_identifier_.assign_buffer(ptr, max_size);
}
} else if (max_size != client_identifier_.size()) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get wrong client identifier", K(ret), K(client_identifier_.size()));
}
return ret;
}
int ObBasicSessionInfo::check_and_init_retry_info(const ObCurTraceId::TraceId &cur_trace_id,
const ObString &sql)
{
int ret = OB_SUCCESS;
// The following judgment has a significant impact, I am afraid of problems, so after logging ERROR, it still continues to execute, only affecting retry info, it can still execute normally
if (last_query_trace_id_.equals(cur_trace_id)) { // is a retry query package
if (OB_UNLIKELY(!retry_info_.is_inited())) {
LOG_ERROR("is retry packet, but retry info is not inited, will init it",
K(last_query_trace_id_), K(cur_trace_id), K(retry_info_), K(get_server_sid()), K(sql));
if (OB_FAIL(retry_info_.init())) {
LOG_WARN("fail to init retry info", K(ret), K(retry_info_), K(sql));
}
}
} else {
//@TODO: Not a retry query packet, do not clear the retry information logic at the end of normal statement execution, this place will be made into on-demand initialization,
// Reduce the execution overhead of normal statements, so if the previous statement initialized the retry information, it is cleared here directly,
// Because for asynchronous execution, it is impossible to determine its retry status when the control thread ends, so the operation of clearing retry information cannot be performed
if (OB_UNLIKELY(retry_info_.is_inited())) {
retry_info_.reset();
}
// Not a retry query packet should all init retry info
if (OB_FAIL(retry_info_.init())) {
LOG_WARN("fail to init retry info", K(ret), K(retry_info_), K(sql));
} else {
last_query_trace_id_.set(cur_trace_id);
}
}
return ret;
}
const ObLogIdLevelMap *ObBasicSessionInfo::get_log_id_level_map() const
{
return (log_id_level_map_valid_ ? (&log_id_level_map_) : NULL);
}
int ObBasicSessionInfo::set_default_catalog_db(uint64_t catalog_id,
uint64_t db_id,
const common::ObString &database_name,
share::ObSwitchCatalogHelper* switch_catalog_helper)
{
int ret = OB_SUCCESS;
ObObj catalog_id_obj;
catalog_id_obj.set_uint64(catalog_id);
if (switch_catalog_helper != NULL
&& OB_FAIL(switch_catalog_helper->set(get_current_default_catalog(),
get_database_id(),
get_database_name(),
this))) {
LOG_WARN("failed to set switch catalog helper", K(ret));
} else if (OB_FAIL(update_sys_variable(share::SYS_VAR__CURRENT_DEFAULT_CATALOG, catalog_id_obj))) {
LOG_WARN("failed to update sys var", K(ret));
} else if (OB_FAIL(set_default_database(database_name))) {
LOG_WARN("faile to set default database", K(ret));
} else {
set_database_id(db_id);
}
return ret;
}
int ObBasicSessionInfo::set_internal_catalog_db(share::ObSwitchCatalogHelper* switch_catalog_helper)
{
int ret = OB_SUCCESS;
return set_default_catalog_db(OB_INTERNAL_CATALOG_ID,
OB_SYS_DATABASE_ID,
OB_SYS_DATABASE_NAME,
switch_catalog_helper);
}
bool ObBasicSessionInfo::is_in_external_catalog()
{
return get_current_default_catalog() != OB_INTERNAL_CATALOG_ID;
}
int ObBasicSessionInfo::set_default_database(const ObString &database_name,
const ObCollationType coll_type/*= CS_TYPE_INVALID */)
{
int ret = OB_SUCCESS;
if (database_name.length() > OB_MAX_DATABASE_NAME_LENGTH * OB_MAX_CHAR_LEN) {
ret = OB_INVALID_ARGUMENT_FOR_LENGTH;
LOG_WARN("invalid length for database_name", K(database_name), K(ret));
} else {
if (CS_TYPE_INVALID != coll_type) {
const int64_t coll_val = static_cast<int64_t>(coll_type);
if (OB_FAIL(update_sys_variable(SYS_VAR_CHARACTER_SET_DATABASE, coll_val))) {
LOG_WARN("failed to update variable", K(ret));
} else if (OB_FAIL(update_sys_variable(SYS_VAR_COLLATION_DATABASE, coll_val))) {
LOG_WARN("failed to update variable", K(ret));
} else {}
}
if (OB_SUCC(ret)) {
LockGuard lock_guard(thread_data_mutex_);
MEMCPY(thread_data_.database_name_, database_name.ptr(), database_name.length());
thread_data_.database_name_[database_name.length()] = '\0';
if (is_track_session_info()) {
is_database_changed_ = true;
}
}
}
return ret;
}
int ObBasicSessionInfo::update_database_variables(ObSchemaGetterGuard *schema_guard)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(schema_guard)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid schema guard is NULL", K(ret));
} else {
if ('\0' == thread_data_.database_name_[0] || is_external_catalog_id(get_current_default_catalog())) {
// no default database
ObObj val;
if (OB_FAIL(get_sys_variable(SYS_VAR_CHARACTER_SET_SERVER, val))) {
LOG_WARN("failed to get sys variable", K(ret));
} else if (OB_FAIL(update_sys_variable(SYS_VAR_CHARACTER_SET_DATABASE, val))) {
LOG_WARN("failed to update sys variable", K(ret));
} else if (OB_FAIL(get_sys_variable(SYS_VAR_COLLATION_SERVER, val))) {
LOG_WARN("failed to get sys variable", K(ret));
} else if (OB_FAIL(update_sys_variable(SYS_VAR_COLLATION_DATABASE, val))) {
LOG_WARN("failed to update sys variable", K(ret));
} else {}
} else {
const share::schema::ObDatabaseSchema *db_schema = NULL;
ObString db_name(thread_data_.database_name_);
if (OB_FAIL(schema_guard->get_database_schema(effective_tenant_id_, db_name,
db_schema))) {
LOG_WARN("get database schema failed",
K(effective_tenant_id_), K(db_name), K(ret));
} else if (NULL == db_schema) {
ret = OB_ERR_BAD_DATABASE;
LOG_WARN("database not exist",
K(effective_tenant_id_), K(db_name), K(ret));
LOG_USER_ERROR(OB_ERR_BAD_DATABASE, db_name.length(), db_name.ptr());
} else {
const int64_t db_coll = static_cast<int64_t>(db_schema->get_collation_type());
if (OB_FAIL(update_sys_variable(SYS_VAR_CHARACTER_SET_DATABASE, db_coll))) {
LOG_WARN("failed to update sys variable", K(ret));
} else if (OB_FAIL(update_sys_variable(SYS_VAR_COLLATION_DATABASE, db_coll))) {
LOG_WARN("failed to update sys variable", K(ret));
} else {}
}
}
}
return ret;
}
int ObBasicSessionInfo::update_max_packet_size()
{
int ret = OB_SUCCESS;
int64_t max_allowed_pkt = 0;
int64_t net_buffer_len = 0;
if (OB_FAIL(get_max_allowed_packet(max_allowed_pkt))) {
LOG_WARN("fail to get_max_allowed_packet", K(ret));
} else if (OB_FAIL(get_net_buffer_length(net_buffer_len))) {
LOG_WARN("fail to get_net_buffer_length", K(ret));
} else {
thread_data_.max_packet_size_ = std::max(max_allowed_pkt, net_buffer_len);
}
return ret;
}
const ObString ObBasicSessionInfo::get_database_name() const
{
ObString str_ret;
str_ret.assign_ptr(const_cast<char*>(thread_data_.database_name_),
static_cast<int32_t>(strlen(thread_data_.database_name_)));
return str_ret;
}
//// FIXME: xiyu
//int ObBasicSessionInfo::get_database_id(
// ObSchemaGetterGuard *schema_guard,
// uint64_t &db_id) const
//{
// int ret = OB_SUCCESS;
// db_id = OB_INVALID_ID;
// if (get_database_name().empty()) {
// //do nothing
// } else if (OB_UNLIKELY(NULL == schema_guard)) {
// ret = OB_INVALID_ARGUMENT;
// LOG_WARN("Schema guard should not be NULL", K(ret));
// } else if (OB_FAIL(schema_guard->get_database_id(get_effective_tenant_id(), get_database_name(),
// db_id))) {
// db_id = OB_INVALID_ID;
// LOG_WARN("failed to get database id", K(db_id), K(ret));
// } else { }//do nothing
// return ret;
//}
////////////////////////////////////////////////////////////////
int ObBasicSessionInfo::get_global_sys_variable(const ObBasicSessionInfo *session,
ObIAllocator &calc_buf,
const ObString &var_name,
ObObj &val)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(session)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("session is NULL", K(ret), K(var_name));
} else {
//const ObDataTypeCastParams dtc_params(session->get_timezone_info(),
// session->get_local_nls_formats(),
// session->get_nls_collation(),
// session->get_nls_collation_nation());
ObDataTypeCastParams dtc_params = session->get_dtc_params();
if (OB_FAIL(get_global_sys_variable(session->get_effective_tenant_id(),
calc_buf, dtc_params, var_name, val))) {
LOG_WARN("fail to get global sys variable", K(ret), K(var_name));
}
}
return ret;
}
int ObBasicSessionInfo::get_global_sys_variable(const uint64_t actual_tenant_id, // To handle the situation where the tenant has been switched
ObIAllocator &calc_buf,
const ObDataTypeCastParams &dtc_params,
const ObString &var_name,
ObObj &val)
{
int ret = OB_SUCCESS;
ObSchemaGetterGuard schema_guard;
const ObTenantSchema *tenant_schema = NULL;
const ObSysVarSchema *sysvar_schema = NULL;
const ObSysVariableSchema *sys_variable_schema = NULL;
if (OB_UNLIKELY(!is_valid_tenant_id(actual_tenant_id))) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid tenant id", K(actual_tenant_id), K(ret));
} else if (OB_ISNULL(GCTX.schema_service_)) {
ret = OB_INVALID_ARGUMENT;
OB_LOG(WARN,"invalid argument", K(GCTX.schema_service_));
} else if (OB_FAIL(GCTX.schema_service_->get_tenant_schema_guard(
actual_tenant_id,
schema_guard))) {
ret = OB_SCHEMA_ERROR;
OB_LOG(WARN,"fail get schema guard", K(ret));
} else if (OB_FAIL(schema_guard.get_tenant_info(actual_tenant_id, tenant_schema))) {
LOG_WARN("get tenant info failed", K(ret), K(actual_tenant_id));
} else if (OB_ISNULL(tenant_schema)) {
ret = OB_SCHEMA_ERROR;
LOG_WARN("tenant_schema is NULL", K(ret));
} else if (OB_FAIL(schema_guard.get_sys_variable_schema(actual_tenant_id, sys_variable_schema))) {
LOG_WARN("get sys variable schema failed", K(ret));
} else if (OB_ISNULL(sys_variable_schema)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("sys variable schema is null", K(ret));
} else if (OB_FAIL(sys_variable_schema->get_sysvar_schema(var_name, sysvar_schema))) {
ret = OB_ERR_SYS_VARIABLE_UNKNOWN;
LOG_WARN("failed to get sysvar", K(ret), K(var_name));
} else if (OB_ISNULL(sysvar_schema)) {
ret = OB_SCHEMA_ERROR;
LOG_WARN("tenant_schema is NULL", K(ret));