diff --git a/README.md b/README.md
index ac49e93..95d48f1 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ bend-ingest-kafka
   --databend-table="db1.tbl" \
   --data-format="json" \
   --batch-size=100000 \
-  --batch-max-interval=300s
+  --batch-max-interval=300
 ```
 
 #### config file mode
@@ -108,7 +108,7 @@ with `config.conf.json` and the table `default.kfk_test` will be created and the
 | databendDSN           | databend dsn            | no                  | "http://localhost:8000"         |
 | databendTable         | databend table          | no                  | "db1.tbl"                       |
 | batchSize             | batch size              | 1000                | 1000                            |
-| batchMaxInterval      | batch max interval      | 30                  | 30s                             |
+| batchMaxInterval      | batch max interval      | 30                  | 30                              |
 | dataFormat            | data format             | json                | "json"                          |
 | workers               | workers thread number   | 1                   | 1                               |
 | copyPurge             | copy purge              | false               | false                           |
diff --git a/batch_reader.go b/batch_reader.go
index b7ff877..37897d5 100644
--- a/batch_reader.go
+++ b/batch_reader.go
@@ -74,7 +74,7 @@ func NewKafkaBatchReader(cfg *config.Config) *KafkaBatchReader {
 	})
 	return &KafkaBatchReader{
 		batchSize:        cfg.BatchSize,
-		maxBatchInterval: time.Duration(cfg.BatchMaxInterval),
+		maxBatchInterval: time.Duration(cfg.BatchMaxInterval) * time.Second,
 		kafkaReader:      kafkaReader,
 	}
 }
@@ -84,7 +84,7 @@ func (br *KafkaBatchReader) Close() error {
 }
 
 func (br *KafkaBatchReader) fetchMessageWithTimeout(ctx context.Context, timeout time.Duration) (*kafka.Message, error) {
-	ctx, cancel := context.WithTimeout(ctx, timeout)
+	ctx, cancel := context.WithTimeout(ctx, 2*timeout)
 	defer cancel()
 
 	m, err := br.kafkaReader.FetchMessage(ctx)
@@ -148,7 +148,6 @@ _loop:
 		partition = lastMessage.Partition
 		key = string(lastMessage.Key)
 		createTime = lastMessage.Time
-
 	}
 
 	return &message.MessagesBatch{
diff --git a/consume_worker_test.go b/consume_worker_test.go
index 604adb1..309fb74 100644
--- a/consume_worker_test.go
+++ b/consume_worker_test.go
@@ -190,24 +190,14 @@ func TestConsumerWithoutTransform(t *testing.T) {
 	}
 	w := NewConsumeWorker(cfg, "worker1", ig)
 	log.Printf("start consume")
-	w.stepBatch(context.TODO())
+	err = w.stepBatch(context.TODO())
+	assert.NoError(t, err)
 
 	result, err := db.Query("select * from test_ingest_raw")
 	assert.NoError(t, err)
 	count := 0
 	for result.Next() {
 		count += 1
-		var i64 int64
-		var u64 uint64
-		var f64 float64
-		var s string
-		var s2 string
-		var a16 []int16
-		var a8 []uint8
-		var d time.Time
-		var t time.Time
-		err = result.Scan(&i64, &u64, &f64, &s, &s2, &a16, &a8, &d, &t)
-		fmt.Println(i64, u64, f64, s, s2, a16, a8, d, t)
 	}
 
 	assert.NotEqual(t, 0, count)