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[FEAT MERGE] performance optimzation for OLTP

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Co-authored-by: dimstars <liangjinrongcm@gmail.com>
Co-authored-by: pe-99y <315053752@qq.com>
This commit is contained in:
Naynahs
2024-04-10 07:32:27 +00:00
committed by ob-robot
parent 054f5a5a80
commit 3d4ef9741d
177 changed files with 7111 additions and 9708 deletions
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16
src/sql/ob_sql_trans_control.cpp
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@ -439,7 +439,10 @@ int ObSqlTransControl::do_end_trans_(ObSQLSessionInfo *session,
transaction::ObTxDesc *&tx_ptr = session->get_tx_desc();
bool is_detector_exist = false;
int tmp_ret = OB_SUCCESS;
if (OB_ISNULL(MTL(share::detector::ObDeadLockDetectorMgr*))) {
const int64_t lcl_op_interval = GCONF._lcl_op_interval;
if (lcl_op_interval <= 0) {
// do nothing
} else if (OB_ISNULL(MTL(share::detector::ObDeadLockDetectorMgr*))) {
tmp_ret = OB_BAD_NULL_ERROR;
DETECT_LOG(WARN, "MTL ObDeadLockDetectorMgr is NULL", K(tmp_ret), K(tx_ptr->tid()));
} else if (OB_TMP_FAIL(MTL(share::detector::ObDeadLockDetectorMgr*)->
@ -795,17 +798,23 @@ int ObSqlTransControl::stmt_setup_snapshot_(ObSQLSessionInfo *session,
int64_t stmt_expire_ts = get_stmt_expire_ts(plan_ctx, *session);
share::ObLSID first_ls_id;
bool local_single_ls_plan = false;
bool is_single_tablet = false;
const bool local_single_ls_plan_maybe = plan->is_local_plan() &&
OB_PHY_PLAN_LOCAL == plan->get_location_type();
if (local_single_ls_plan_maybe) {
if (OB_FAIL(get_first_lsid(das_ctx, first_ls_id))) {
if (OB_FAIL(get_first_lsid(das_ctx, first_ls_id, is_single_tablet))) {
} else if (!first_ls_id.is_valid()) {
// do nothing
// get_ls_read_snapshot may degenerate into get_gts, so it can be used even if the ls is not local.
// This is mainly to solve the problem of strong reading performance in some single-tablet scenarios.
} else if (OB_FAIL(txs->get_ls_read_snapshot(tx_desc,
session->get_tx_isolation(),
first_ls_id,
stmt_expire_ts,
snapshot))) {
} else if (is_single_tablet) {
// performance for single tablet scenario
local_single_ls_plan = true;
} else {
local_single_ls_plan = has_same_lsid(das_ctx, snapshot, first_ls_id);
}
@ -935,7 +944,7 @@ uint32_t ObSqlTransControl::get_real_session_id(ObSQLSessionInfo &session)
return session.get_xid().empty() ? 0 : (session.get_proxy_sessid() != 0 ? session.get_proxy_sessid() : session.get_sessid());
}
int ObSqlTransControl::get_first_lsid(const ObDASCtx &das_ctx, share::ObLSID &first_lsid)
int ObSqlTransControl::get_first_lsid(const ObDASCtx &das_ctx, share::ObLSID &first_lsid, bool &is_single_tablet)
{
int ret = OB_SUCCESS;
const DASTableLocList &table_locs = das_ctx.get_table_loc_list();
@ -946,6 +955,7 @@ int ObSqlTransControl::get_first_lsid(const ObDASCtx &das_ctx, share::ObLSID &fi
const ObDASTabletLoc *tablet_loc = tablet_locs.get_first();
first_lsid = tablet_loc->ls_id_;
}
is_single_tablet = (1 == table_locs.size() && 1 == tablet_locs.size());
}
return ret;
}