Reduce redundant history tree creation for workflow reset (#825)

* When performing workflow reset & terminating current workflow, one unnecessary create history tree API is called, this PR remove the redundant call to improve performance

Author: wxing1292

common/persistence/sql/sqlplugin/mysql/events.go

@@ -42,11 +42,9 @@ const (
 	deleteHistoryNodesQuery = `DELETE FROM history_node WHERE shard_id = ? AND tree_id = ? AND branch_id = ? AND node_id >= ? `
 
 	// below are templates for history_tree table
-	upsertHistoryTreeQuery = `INSERT INTO history_tree (` +
+	addHistoryTreeQuery = `INSERT INTO history_tree (` +
 		`shard_id, tree_id, branch_id, data, data_encoding) ` +
-		`VALUES (:shard_id, :tree_id, :branch_id, :data, :data_encoding) ` +
-		`ON DUPLICATE KEY UPDATE ` +
-		`data=VALUES(data), data_encoding=VALUES(data_encoding)`
+		`VALUES (:shard_id, :tree_id, :branch_id, :data, :data_encoding) `
 
 	getHistoryTreeQuery = `SELECT branch_id, data, data_encoding FROM history_tree WHERE shard_id = ? AND tree_id = ? `
 
@@ -83,7 +81,7 @@ func (mdb *db) DeleteFromHistoryNode(filter sqlplugin.HistoryNodeDeleteFilter) (
 
 // InsertIntoHistoryTree inserts a row into history_tree table
 func (mdb *db) InsertIntoHistoryTree(row *sqlplugin.HistoryTreeRow) (sql.Result, error) {
-	return mdb.conn.NamedExec(upsertHistoryTreeQuery, row)
+	return mdb.conn.NamedExec(addHistoryTreeQuery, row)
 }
 
 // SelectFromHistoryTree reads one or more rows from history_tree table

common/persistence/sql/sqlplugin/postgresql/events.go

@@ -42,10 +42,9 @@ const (
 	deleteHistoryNodesQuery = `DELETE FROM history_node WHERE shard_id = $1 AND tree_id = $2 AND branch_id = $3 AND node_id >= $4 `
 
 	// below are templates for history_tree table
-	upsertHistoryTreeQuery = `INSERT INTO history_tree (` +
+	addHistoryTreeQuery = `INSERT INTO history_tree (` +
 		`shard_id, tree_id, branch_id, data, data_encoding) ` +
-		`VALUES (:shard_id, :tree_id, :branch_id, :data, :data_encoding) ` +
-		`ON CONFLICT (shard_id, tree_id, branch_id) DO UPDATE SET data = excluded.data, data_encoding = excluded.data_encoding`
+		`VALUES (:shard_id, :tree_id, :branch_id, :data, :data_encoding) `
 
 	getHistoryTreeQuery = `SELECT branch_id, data, data_encoding FROM history_tree WHERE shard_id = $1 AND tree_id = $2 `
 
@@ -82,7 +81,7 @@ func (pdb *db) DeleteFromHistoryNode(filter sqlplugin.HistoryNodeDeleteFilter) (
 
 // InsertIntoHistoryTree inserts a row into history_tree table
 func (pdb *db) InsertIntoHistoryTree(row *sqlplugin.HistoryTreeRow) (sql.Result, error) {
-	return pdb.conn.NamedExec(upsertHistoryTreeQuery, row)
+	return pdb.conn.NamedExec(addHistoryTreeQuery, row)
 }
 
 // SelectFromHistoryTree reads one or more rows from history_tree table

common/persistence/sql/sqlplugin/tests/history_tree_test.go

@@ -90,24 +90,22 @@ func (s *historyTreeSuite) TestInsert_Success() {
 	s.Equal(1, int(rowsAffected))
 }
 
-// TODO: when issue https://github.com/temporalio/temporal/issues/818
-//  is resolved, uncomment this test
-//func (s *historyTreeSuite) TestInsert_Fail_Duplicate() {
-//	shardID := rand.Int31()
-//	treeID := primitives.NewUUID()
-//	branchID := primitives.NewUUID()
-//
-//	node := s.newRandomTreeRow(shardID, treeID, branchID)
-//	result, err := s.store.InsertIntoHistoryTree(&node)
-//	s.NoError(err)
-//	rowsAffected, err := result.RowsAffected()
-//	s.NoError(err)
-//	s.Equal(1, int(rowsAffected))
-//
-//	node = s.newRandomTreeRow(shardID, treeID, branchID)
-//	_, err = s.store.InsertIntoHistoryTree(&node)
-//	s.Error(err) // TODO persistence layer should do proper error translation
-//}
+func (s *historyTreeSuite) TestInsert_Fail_Duplicate() {
+	shardID := rand.Int31()
+	treeID := primitives.NewUUID()
+	branchID := primitives.NewUUID()
+
+	node := s.newRandomTreeRow(shardID, treeID, branchID)
+	result, err := s.store.InsertIntoHistoryTree(&node)
+	s.NoError(err)
+	rowsAffected, err := result.RowsAffected()
+	s.NoError(err)
+	s.Equal(1, int(rowsAffected))
+
+	node = s.newRandomTreeRow(shardID, treeID, branchID)
+	_, err = s.store.InsertIntoHistoryTree(&node)
+	s.Error(err) // TODO persistence layer should do proper error translation
+}
 
 func (s *historyTreeSuite) TestInsertSelect() {
 	shardID := rand.Int31()

service/history/workflowExecutionContext.go

@@ -699,12 +699,22 @@ func (c *workflowExecutionContextImpl) updateWorkflowExecutionWithNew(
 		}
 		newWorkflowSizeSize := newContext.getHistorySize()
 		startEvents := newWorkflowEventsSeq[0]
-		eventsSize, err := c.persistFirstWorkflowEvents(startEvents)
-		if err != nil {
-			return err
+		firstEventID := startEvents.Events[0].EventId
+		if firstEventID == common.FirstEventID {
+			eventsSize, err := c.persistFirstWorkflowEvents(startEvents)
+			if err != nil {
+				return err
+			}
+			newWorkflowSizeSize += eventsSize
+			newContext.setHistorySize(newWorkflowSizeSize)
+		} else {
+			eventsSize, err := c.persistNonFirstWorkflowEvents(startEvents)
+			if err != nil {
+				return err
+			}
+			newWorkflowSizeSize += eventsSize
+			newContext.setHistorySize(newWorkflowSizeSize)
 		}
-		newWorkflowSizeSize += eventsSize
-		newContext.setHistorySize(newWorkflowSizeSize)
 		newWorkflow.ExecutionStats = &persistenceblobs.ExecutionStats{
 			HistorySize: newWorkflowSizeSize,
 		}