diff --git a/backend/model/log.go b/backend/model/log.go
index ae6973b1..fc2cc79d 100644
--- a/backend/model/log.go
+++ b/backend/model/log.go
@@ -23,7 +23,7 @@ func GetLocalLog(logPath string) (fileBytes []byte, err error) {
 	}
 	defer f.Close()
 
-	const bufLen = 2 * 1024 * 1024
+	const bufLen = 1 * 1024 * 1024
 	logBuf := make([]byte, bufLen)
 
 	off := int64(0)
diff --git a/backend/services/log.go b/backend/services/log.go
index 81140c0a..47280fe5 100644
--- a/backend/services/log.go
+++ b/backend/services/log.go
@@ -50,7 +50,7 @@ func GetRemoteLog(task model.Task) (logStr string, err error) {
 	case logStr = <-ch:
 		log.Infof("get remote log")
 		break
-	case <-time.After(5 * time.Second):
+	case <-time.After(30 * time.Second):
 		logStr = "get remote log timeout"
 		break
 	}