Nova

Troubleshooting

Provisioning failure due to downloading volume

If you're trying to provision a new instance that is using a volume where the backend needs to download images directly from Glance (such as PowerStore for example) and it fails with the following error:

Build of instance 54a41735-a4cb-4312-b812-52e4f3d8c500 aborted: Volume 728bdc40-fc22-4b65-b6b6-c94ee7f98ff0 did not finish being created even after we waited 187 seconds or 61 attempts. And its status is downloading.

This means that the volume service could not download the image before the compute service timed out. Out of the box, Atmosphere ships with the volume cache enabled to help offset this issue. However, if you're using a backend that does not support the volume cache, you can increase the timeout by setting the following in your inventory/group_vars/all/nova.yml file:

nova_helm_values:
  conf:
    enable_iscsi: true
    nova:
      DEFAULT:
        block_device_allocate_retries: 300