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[4.1] support distributed txn free route

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This commit is contained in:
chinaxing
2023-01-28 16:07:17 +08:00
committed by ob-robot
parent 1cdf1dff1c
commit 30d0adec61
89 changed files with 3978 additions and 518 deletions
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65
src/sql/session/ob_sql_session_info.h
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@ -44,6 +44,7 @@
#include "sql/ob_optimizer_trace_impl.h"
#include "sql/monitor/flt/ob_flt_span_mgr.h"
#include "sql/monitor/ob_sql_plan_manager.h"
#include "storage/tx/ob_tx_free_route.h"
namespace oceanbase
{
@ -197,11 +198,15 @@ private:
enum SessionSyncInfoType {
//SESSION_SYNC_USER_VAR, // for user variables
SESSION_SYNC_APPLICATION_INFO, // for application info
SESSION_SYNC_APPLICATION_CONTEXT, // for app ctx
SESSION_SYNC_CLIENT_ID, // for client identifier
SESSION_SYNC_CONTROL_INFO, // for full trace link control info
SESSION_SYNC_SYS_VAR, // for system variables
SESSION_SYNC_APPLICATION_INFO = 0, // for application info
SESSION_SYNC_APPLICATION_CONTEXT = 1, // for app ctx
SESSION_SYNC_CLIENT_ID = 2, // for client identifier
SESSION_SYNC_CONTROL_INFO = 3, // for full trace link control info
SESSION_SYNC_SYS_VAR = 4, // for system variables
SESSION_SYNC_TXN_STATIC_INFO = 5, // 5: basic txn info
SESSION_SYNC_TXN_DYNAMIC_INFO = 6, // 6: txn dynamic info
SESSION_SYNC_TXN_PARTICIPANTS_INFO = 7, // 7: txn dynamic info
SESSION_SYNC_TXN_EXTRA_INFO = 8, // 8: txn dynamic info
SESSION_SYNC_MAX_TYPE,
};
@ -273,6 +278,20 @@ public:
static const int16_t CONINFO_BY_SESS = 0xC078;
};
#define DEF_SESSION_TXN_ENCODER(CLS) \
class CLS final : public ObSessInfoEncoder { \
public: \
int serialize(ObSQLSessionInfo &sess, char *buf, const int64_t length, int64_t &pos) override; \
int deserialize(ObSQLSessionInfo &sess, const char *buf, const int64_t length, int64_t &pos) override; \
int64_t get_serialize_size(ObSQLSessionInfo &sess) const override; \
};
DEF_SESSION_TXN_ENCODER(ObTxnStaticInfoEncoder);
DEF_SESSION_TXN_ENCODER(ObTxnDynamicInfoEncoder);
DEF_SESSION_TXN_ENCODER(ObTxnParticipantsInfoEncoder);
DEF_SESSION_TXN_ENCODER(ObTxnExtraInfoEncoder);
#undef DEF_SESSION_TXN_ENCODER
typedef common::hash::ObHashMap<uint64_t, pl::ObPLPackageState *,
common::hash::NoPthreadDefendMode> ObPackageStateMap;
typedef common::hash::ObHashMap<uint64_t, share::ObSequenceValue,
@ -618,13 +637,7 @@ public:
void get_session_priv_info(share::schema::ObSessionPrivInfo &session_priv) const;
void set_found_rows(const int64_t count) { found_rows_ = count; }
int64_t get_found_rows() const { return found_rows_; }
void set_affected_rows(const int64_t count)
{
affected_rows_ = count;
if (affected_rows_ > 0) {
trans_flags_.set_has_hold_row_lock(true);
}
}
void set_affected_rows(const int64_t count) { affected_rows_ = count; }
int64_t get_affected_rows() const { return affected_rows_; }
bool has_user_super_privilege() const;
bool has_user_process_privilege() const;
@ -977,12 +990,7 @@ public:
virtual void reset_tx_variable();
ObOptimizerTraceImpl& get_optimizer_tracer() { return optimizer_tracer_; }
public:
bool has_tx_level_temp_table() const {
return tx_level_temp_table_;
}
void set_tx_level_temp_table() {
tx_level_temp_table_ = true;
}
bool has_tx_level_temp_table() const { return tx_desc_ && tx_desc_->with_temporary_table(); }
//for dblink
int register_dblink_conn_pool(common::sqlclient::ObCommonServerConnectionPool *dblink_conn_pool);
int free_dblink_conn_pool();
@ -1129,7 +1137,6 @@ private:
// No matter whether apply for resource successfully, a session will call on_user_disconnect when disconnect.
// While only session got connection resource can release connection resource and decrease connections count.
bool got_conn_res_;
bool tx_level_temp_table_;
ObArray<common::sqlclient::ObCommonServerConnectionPool *> dblink_conn_pool_array_; //for dblink to free connection when session drop.
// get_session_allocator can only apply for fixed-length memory.
// To customize the memory length, you need to use malloc_alloctor of mem_context
@ -1150,7 +1157,11 @@ private:
&app_ctx_info_encoder_,
&client_id_info_encoder_,
&control_info_encoder_,
&sys_var_encoder_
&sys_var_encoder_,
&txn_static_info_encoder_,
&txn_dynamic_info_encoder_,
&txn_participants_info_encoder_,
&txn_extra_info_encoder_
};
ObSysVarEncoder sys_var_encoder_;
//ObUserVarEncoder usr_var_encoder_;
@ -1158,6 +1169,20 @@ private:
ObAppCtxInfoEncoder app_ctx_info_encoder_;
ObClientIdInfoEncoder client_id_info_encoder_;
ObControlInfoEncoder control_info_encoder_;
ObTxnStaticInfoEncoder txn_static_info_encoder_;
ObTxnDynamicInfoEncoder txn_dynamic_info_encoder_;
ObTxnParticipantsInfoEncoder txn_participants_info_encoder_;
ObTxnExtraInfoEncoder txn_extra_info_encoder_;
public:
void post_sync_session_info();
void set_txn_free_route(bool txn_free_route);
int calc_txn_free_route();
bool can_txn_free_route() const;
virtual bool is_txn_free_route_temp() const { return tx_desc_ != NULL && txn_free_route_ctx_.is_temp(*tx_desc_); }
transaction::ObTxnFreeRouteCtx &get_txn_free_route_ctx() { return txn_free_route_ctx_; }
void check_txn_free_route_alive();
private:
transaction::ObTxnFreeRouteCtx txn_free_route_ctx_;
//save the current sql exec context in session
//and remove the record when the SQL execution ends
//in order to access exec ctx through session during SQL execution