BUGFIX: wake up lock wait mgr if OUT_TRANS_UNLOCK finished

src/share/ob_debug_sync_point.h

@@ -424,6 +424,7 @@ class ObString;
     ACT(AFTER_BACKUP_FETCH_MACRO_BLOCK_FAILED,)\
     ACT(BEFORE_TABLE_REDEFINITION_TASK_EFFECT,)\
     ACT(ALTER_LS_CHOOSE_SRC,)\
+    ACT(BEFORE_LOCK_SERVICE_UNLOCK,)\
     ACT(MAX_DEBUG_SYNC_POINT,)
 
 DECLARE_ENUM(ObDebugSyncPoint, debug_sync_point, OB_DEBUG_SYNC_POINT_DEF);

src/storage/tablelock/ob_lock_memtable.cpp

@@ -171,8 +171,7 @@ int ObLockMemtable::lock_(
   if (ret == OB_OBJ_LOCK_EXIST) {
     ret = OB_SUCCESS;
   }
-  if (ENABLE_USE_LOCK_WAIT_MGR &&
-      OB_TRY_LOCK_ROW_CONFLICT == ret &&
+  if (OB_TRY_LOCK_ROW_CONFLICT == ret &&
       lock_op.is_dml_lock_op() &&   // only in trans dml lock will wait at lock wait mgr.
       conflict_tx_set.count() != 0) {
     // TODO: yanyuan.cxf only wait at the first conflict trans now, but we need
@@ -351,19 +350,6 @@ int ObLockMemtable::post_obj_lock_conflict_(ObMvccAccessCtx &acc_ctx,
   return ret;
 }
 
-void ObLockMemtable::wakeup_waiters_(const ObTableLockOp &lock_op)
-{
-  // dml in trans lock does not need do this.
-  if (OB_LIKELY(!lock_op.need_wakeup_waiter())) {
-    // do nothing
-  } else if (OB_ISNULL(MTL(ObLockWaitMgr*))) {
-    LOG_WARN("MTL(ObLockWaitMgr*) is null");
-  } else {
-    MTL(ObLockWaitMgr*)->wakeup(lock_op.lock_id_);
-    LOG_DEBUG("ObLockMemtable::wakeup_waiters_ ", K(lock_op));
-  }
-}
-
 int ObLockMemtable::check_lock_conflict(
     const ObMemtableCtx *mem_ctx,
     const ObTableLockOp &lock_op,
@@ -489,9 +475,6 @@ void ObLockMemtable::remove_lock_record(const ObTableLockOp &lock_op)
     LOG_WARN("invalid argument", K(ret), K(lock_op));
   } else {
     obj_lock_map_.remove_lock_record(lock_op);
-    if (ENABLE_USE_LOCK_WAIT_MGR) {
-      wakeup_waiters_(lock_op);
-    }
   }
   LOG_DEBUG("ObLockMemtable::remove_lock_record", K(lock_op));
 }

src/storage/tablelock/ob_lock_memtable.h

@@ -207,7 +207,6 @@ private:
                               const ObLockID &lock_id,
                               const ObTransID &conflict_tx_id,
                               ObFunction<int(bool &need_wait)> &recheck_f);
-  void wakeup_waiters_(const ObTableLockOp &lock_op);
 private:
   typedef common::SpinRWLock RWLock;
   typedef common::SpinRLockGuard RLockGuard;

src/storage/tablelock/ob_obj_lock.cpp

@@ -15,6 +15,7 @@
 #include "share/ob_define.h"
 #include "share/ob_errno.h"
 #include "lib/oblog/ob_log_module.h"
+#include "storage/memtable/ob_lock_wait_mgr.h"
 #include "storage/tx/ob_trans_deadlock_adapter.h"
 #include "storage/tx/ob_trans_define.h"
 #include "storage/tx/ob_trans_part_ctx.h"
@@ -401,6 +402,11 @@ int ObOBJLock::update_lock_status(
         LOG_WARN("compact tablelock failed", K(tmp_ret), K(lock_op));
       }
     }
+    if (OB_SUCC(ret) &&
+        lock_op.op_type_ == OUT_TRANS_UNLOCK &&
+        status == LOCK_OP_COMPLETE) {
+      wakeup_waiters_(lock_op);
+    }
   }
   LOG_DEBUG("update lock status", K(ret), K(lock_op), K(commit_version), K(status));
   return ret;
@@ -470,8 +476,7 @@ int ObOBJLock::lock(
           // something else.
           need_retry = false;
           ret = OB_TRANS_KILLED;
-        } else if (ENABLE_USE_LOCK_WAIT_MGR &&
-                   lock_op.is_dml_lock_op() /* only dml lock will wait at lock wait mgr */) {
+        } else if (lock_op.is_dml_lock_op() /* only dml lock will wait at lock wait mgr */) {
           // wait at lock wait mgr but not retry at here.
           need_retry = false;
         } else {
@@ -590,10 +595,24 @@ void ObOBJLock::remove_lock_op(
     drop_op_list_if_empty_(lock_op.lock_mode_,
                            op_list,
                            allocator);
+    wakeup_waiters_(lock_op);
   }
   LOG_DEBUG("ObOBJLock::remove_lock_op finish.");
 }
 
+void ObOBJLock::wakeup_waiters_(const ObTableLockOp &lock_op)
+{
+  // dml in trans lock does not need do this.
+  if (OB_LIKELY(!lock_op.need_wakeup_waiter())) {
+    // do nothing
+  } else if (OB_ISNULL(MTL(ObLockWaitMgr*))) {
+    LOG_WARN("MTL(ObLockWaitMgr*) is null");
+  } else {
+    MTL(ObLockWaitMgr*)->wakeup(lock_op.lock_id_);
+    LOG_DEBUG("ObOBJLock::wakeup_waiters_ ", K(lock_op));
+  }
+}
+
 int64_t ObOBJLock::get_min_ddl_lock_committed_log_ts(const int64_t flushed_log_ts) const
 {
   int ret = OB_SUCCESS;

src/storage/tablelock/ob_obj_lock.h

@@ -155,6 +155,7 @@ private:
       const int64_t commit_log_ts,
       const ObTableLockOpStatus status,
       ObTableLockOpList *op_list);
+  void wakeup_waiters_(const ObTableLockOp &lock_op);
   int recover_(
       const ObTableLockOp &lock_op,
       ObMalloc &allocator);

src/storage/tablelock/ob_table_lock_common.h

@@ -427,8 +427,6 @@ typedef common::ObSimpleIterator<ObLockID, ObSimpleIteratorModIds::OB_OBJ_LOCK_M
 // Is used to store and traverse all lock op
 typedef common::ObSimpleIterator<ObTableLockOp, ObSimpleIteratorModIds::OB_OBJ_LOCK, 16> ObLockOpIterator;
 
-// whether use lock wait mgr or not.
-static const bool ENABLE_USE_LOCK_WAIT_MGR = true;
 // the threshold of timeout interval which will enable the deadlock avoid.
 static const int64_t MIN_DEADLOCK_AVOID_TIMEOUT_US = 60 * 1000 * 1000; // 1 min
 bool is_deadlock_avoid_enabled(const int64_t expire_time);

src/storage/tablelock/ob_table_lock_service.cpp

@@ -290,6 +290,7 @@ int ObTableLockService::unlock_table(const uint64_t table_id,
   LOG_INFO("ObTableLockService::unlock_table",
             K(table_id), K(lock_mode), K(lock_owner), K(timeout_us));
   int ret = OB_SUCCESS;
+  DEBUG_SYNC(BEFORE_LOCK_SERVICE_UNLOCK);
   if (IS_NOT_INIT) {
     ret = OB_NOT_INIT;
     LOG_WARN("lock service is not inited", K(ret), K(table_id), K(lock_mode),
@@ -353,6 +354,7 @@ int ObTableLockService::unlock_tablet(const uint64_t table_id,
                                       const int64_t timeout_us)
 {
   int ret = OB_SUCCESS;
+  DEBUG_SYNC(BEFORE_LOCK_SERVICE_UNLOCK);
   if (IS_NOT_INIT) {
     ret = OB_NOT_INIT;
     LOG_WARN("lock service is not inited", K(ret), K(table_id), K(tablet_id),