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Fix performance reduction for 4.2

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This commit is contained in:
obdev
2023-05-12 09:41:32 +00:00
committed by ob-robot
parent 2da06fac24
commit c2f84470a2
7 changed files with 319592 additions and 448370 deletions
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21
src/sql/session/ob_basic_session_info.cpp
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@ -73,6 +73,7 @@ ObBasicSessionInfo::ObBasicSessionInfo()
unused_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),
@ -264,6 +265,7 @@ void ObBasicSessionInfo::destroy()
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_);
@ -289,6 +291,7 @@ void ObBasicSessionInfo::clean_status()
}
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;
@ -310,6 +313,7 @@ void ObBasicSessionInfo::reset(bool skip_sys_var)
}
xid_.reset();
associated_xa_ = false;
cached_tenant_config_version_ = 0;
is_deserialized_ = false;
CHAR_CARRAY_INIT(tenant_);
tenant_id_ = OB_INVALID_ID;
@ -1665,19 +1669,16 @@ int ObBasicSessionInfo::update_sys_variable(const ObSysVarClassType sys_var_id,
int ObBasicSessionInfo::gen_configs_in_pc_str()
{
int ret = OB_SUCCESS;
const int64_t MAX_CONFIG_STR_SIZE = 512;
char *buf = NULL;
int64_t pos = 0;
if (!GCONF.is_valid()) {
// do nothing
} else {
int64_t cluster_config_version = GCONF.get_current_version();
int64_t tenant_config_version = (::oceanbase::omt::ObTenantConfigMgr::get_instance()).get_tenant_config_version(tenant_id_);
if (GCONF.is_valid()) {
int64_t cluster_config_version = GCONF.get_current_version();
if (!config_in_pc_str_.empty() &&
!inf_pc_configs_.is_out_of_date(cluster_config_version, tenant_config_version)) {
!inf_pc_configs_.is_out_of_date(cluster_config_version, cached_tenant_config_version_)) {
// unupdated configs do nothing
} else {
const int64_t MAX_CONFIG_STR_SIZE = 512;
char *buf = NULL;
int64_t pos = 0;
// update out-dated cached configs
// first time to generate configuaration strings, init allocator
if (is_first_gen_config_) {
@ -1702,7 +1703,7 @@ int ObBasicSessionInfo::gen_configs_in_pc_str()
LOG_WARN("failed to serialize configs", K(ret));
} else {
(void)config_in_pc_str_.assign(buf, int32_t(pos));
inf_pc_configs_.update_version(cluster_config_version, tenant_config_version);
inf_pc_configs_.update_version(cluster_config_version, cached_tenant_config_version_);
}
}
}