cannot be to add executable permissions for files using chmod

[hhwode]

The PVC created by jindoruntime cannot be mounted to add executable permissions for files using chmod +x. Neither chmod nor chown commands work. Do I need to configure additional parameters?
dataset.yaml

apiVersion: data.fluid.io/v1alpha1
kind: Dataset
metadata:
  name: train-dataset
spec:
  accessModes:
  - ReadWriteMany
  mounts:
  - encryptOptions:
    - name: fs.oss.accessKeyId
      valueFrom:
        secretKeyRef:
          key: fs.oss.accessKeyId
          name: training
    - name: fs.oss.accessKeySecret
      valueFrom:
        secretKeyRef:
          key: fs.oss.accessKeySecret
          name: training
    mountPoint: oss://training/
    options:
      fs.oss.endpoint: xx.aliyuncs.com

jindoruntime.yaml

apiVersion: data.fluid.io/v1alpha1
kind: JindoRuntime
metadata:
  name: train-dataset
spec:
  cleanCachePolicy:
    gracePeriodSeconds: 60
    maxRetryAttempts: 3
  fuse:
    args:
    - -oattr_timeout=60
  replicas: 1
  tieredstore:
    levels:
    - low: "0.1"
      mediumtype: SSD
      path: /cache
      quota: "4096"
      volumeSource: {}
      volumeType: hostPath
  worker:
    podMetadata: {}
    resources: {}

when execute chmod +x util, file attr not change.