feat: show user when displaying or logging queries (#26981)

To assist customers in debugging long-running queries, 
display the user that submitted them in the following 
situations:

- SHOW QUERIES
- For log-queries-after > 0
- log-timedout-queries is true
- When termination-query-log is true

Fixes #26980

Author: davidby-influx

query/executor.go

@@ -201,6 +201,9 @@ type ExecutionOptions struct {
 
 	// AbortCh is a channel that signals when results are no longer desired by the caller.
 	AbortCh <-chan struct{}
+
+	// UserID is the ID of the user executing the query.
+	UserID string
 }
 
 type (
@@ -470,6 +473,7 @@ func (e *Executor) recover(query *influxql.Query, results chan *Result) {
 type Task struct {
 	query     string
 	database  string
+	userID    string
 	status    TaskStatus
 	startTime time.Time
 	closing   chan struct{}

query/executor_test.go

@@ -318,6 +318,8 @@ func TestQueryExecutor_Abort(t *testing.T) {
 }
 
 func TestQueryExecutor_ShowQueries(t *testing.T) {
+	const testUser = "Fred"
+	const userColumn = 5
 	e := NewQueryExecutor()
 	e.StatementExecutor = &StatementExecutor{
 		ExecuteStatementFn: func(stmt influxql.Statement, ctx *query.ExecutionContext) error {
@@ -336,12 +338,16 @@ func TestQueryExecutor_ShowQueries(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	results := e.ExecuteQuery(q, query.ExecutionOptions{}, nil)
+	results := e.ExecuteQuery(q, query.ExecutionOptions{UserID: testUser}, nil)
 	result := <-results
 	if len(result.Series) != 1 {
 		t.Errorf("expected %d series, got %d", 1, len(result.Series))
 	} else if len(result.Series[0].Values) != 1 {
 		t.Errorf("expected %d row, got %d", 1, len(result.Series[0].Values))
+	} else if result.Series[0].Values[0][userColumn] != testUser {
+		t.Errorf("unexpected user: %s", result.Series[0].Values[0][0])
+	} else if result.Series[0].Columns[userColumn] != "user" {
+		t.Errorf("unexpected column: %s", result.Series[0].Columns[5])
 	}
 	if result.Err != nil {
 		t.Errorf("unexpected error: %s", result.Err)

query/task_manager.go

@@ -31,7 +31,7 @@ const (
 )
 
 var (
-	queryFieldNames []string = []string{"qid", "query", "database", "duration", "status"}
+	queryFieldNames []string = []string{"qid", "query", "database", "duration", "status", "user"}
 )
 
 func (t TaskStatus) String() string {
@@ -145,7 +145,7 @@ func (t *TaskManager) executeShowQueriesStatement(q *influxql.ShowQueriesStateme
 
 		d = prettyTime(d)
 
-		values = append(values, []interface{}{id, qi.query, qi.database, d.String(), qi.status.String()})
+		values = append(values, []interface{}{id, qi.query, qi.database, d.String(), qi.status.String(), qi.userID})
 	}
 
 	return []*models.Row{{
@@ -172,7 +172,8 @@ func (t *TaskManager) LogCurrentQueries(logFunc func(string, ...zap.Field)) {
 			zap.String(queryFieldNames[1], queryInfo.Query),
 			zap.String(queryFieldNames[2], queryInfo.Database),
 			zap.String(queryFieldNames[3], prettyTime(queryInfo.Duration).String()),
-			zap.String(queryFieldNames[4], queryInfo.Status.String()))
+			zap.String(queryFieldNames[4], queryInfo.Status.String()),
+			zap.String(queryFieldNames[5], queryInfo.User))
 	}
 }
 
@@ -208,6 +209,7 @@ func (t *TaskManager) AttachQuery(q *influxql.Query, opt ExecutionOptions, inter
 	query := &Task{
 		query:     q.String(),
 		database:  opt.Database,
+		userID:    opt.UserID,
 		status:    RunningTask,
 		startTime: time.Now(),
 		closing:   make(chan struct{}),
@@ -223,8 +225,8 @@ func (t *TaskManager) AttachQuery(q *influxql.Query, opt ExecutionOptions, inter
 
 			select {
 			case <-timer.C:
-				t.Logger.Warn(fmt.Sprintf("Detected slow query: %s (qid: %d, database: %s, threshold: %s)",
-					query.query, qid, query.database, t.LogQueriesAfter))
+				t.Logger.Warn(fmt.Sprintf("Detected slow query: %s (qid: %d, database: %s, user: %s, threshold: %s)",
+					query.query, qid, query.database, query.userID, t.LogQueriesAfter))
 			case <-closing:
 			}
 			return nil
@@ -279,6 +281,7 @@ type QueryInfo struct {
 	Database string        `json:"database"`
 	Duration time.Duration `json:"duration"`
 	Status   TaskStatus    `json:"status"`
+	User     string        `json:"user"`
 }
 
 // Queries returns a list of all running queries with information about them.
@@ -295,6 +298,7 @@ func (t *TaskManager) Queries() []QueryInfo {
 			Database: qi.database,
 			Duration: now.Sub(qi.startTime),
 			Status:   qi.status,
+			User:     qi.userID,
 		})
 	}
 	return queries
@@ -323,6 +327,7 @@ func (t *TaskManager) waitForQuery(qid uint64, interrupt <-chan struct{}, closin
 				"query killed for exceeding timeout limit",
 				zap.String("query", t.queries[qid].query),
 				zap.String("database", t.queries[qid].database),
+				zap.String("user", t.queries[qid].userID),
 				zap.String("timeout", prettyTime(t.QueryTimeout).String()),
 			)
 		}

services/httpd/handler.go

@@ -685,13 +685,19 @@ func (h *Handler) serveQuery(w http.ResponseWriter, r *http.Request, user meta.U
 	// Parse whether this is an async command.
 	async := r.FormValue("async") == "true"
 
+	var userName string
+
+	if user != nil {
+		userName = user.ID()
+	}
 	opts := query.ExecutionOptions{
 		Database:        db,
 		RetentionPolicy: r.FormValue("rp"),
 		ChunkSize:       chunkSize,
 		ReadOnly:        r.Method == "GET",
 		NodeID:          nodeID,
 		Authorizer:      fineAuthorizer,
+		UserID:          userName,
 	}
 
 	if h.Config.AuthEnabled {