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[FEAT MERGE] Big Txn Execution Optimization

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This commit is contained in:
Handora
2023-01-06 09:12:22 +00:00
committed by ob-robot
parent 4dfd67d8fb
commit 561432c689
141 changed files with 7806 additions and 2574 deletions
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16
src/sql/session/ob_sql_session_mgr.cpp
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@ -28,6 +28,7 @@
#include "sql/monitor/ob_security_audit_utils.h"
#include "sql/session/ob_user_resource_mgr.h"
#include "sql/monitor/full_link_trace/ob_flt_control_info_mgr.h"
#include "storage/concurrency_control/ob_multi_version_garbage_collector.h"
using namespace oceanbase::common;
using namespace oceanbase::sql;
@ -470,6 +471,21 @@ void ObSQLSessionMgr::try_check_session()
}
}
int ObSQLSessionMgr::get_min_active_snapshot_version(share::SCN &snapshot_version)
{
int ret = OB_SUCCESS;
concurrency_control::GetMinActiveSnapshotVersionFunctor min_active_txn_version_getter;
if (OB_FAIL(for_each_session(min_active_txn_version_getter))) {
LOG_WARN("fail to get min active snapshot version", K(ret));
} else {
snapshot_version = min_active_txn_version_getter.get_min_active_snapshot_version();
}
return ret;
}
int ObSQLSessionMgr::check_session_leak()
{
int ret = OB_SUCCESS;