Surface cache gives error in Radix with blob driver

[anders-kiaer]

WARNING:root:Exception raised while handling cache file '/home/appuser/dash_app/resources/webviz_storage/SurfaceImageServer_filecache_a2ee8374-9bbe-4eb2-a182-afc68c31817c/2029240f6d1128be89ddc32729463129'
Traceback (most recent call last):
  File "/home/appuser/.local/lib/python3.8/site-packages/cachelib/file.py", line 246, in set
    fd, tmp = tempfile.mkstemp(
  File "/usr/local/lib/python3.8/tempfile.py", line 347, in mkstemp
    return _mkstemp_inner(dir, prefix, suffix, flags, output_type)
  File "/usr/local/lib/python3.8/tempfile.py", line 250, in _mkstemp_inner
    fd = _os.open(file, flags, 0o600)
OSError: [Errno 5] Input/output error: '/home/appuser/dash_app/resources/webviz_storage/SurfaceImageServer_filecache_a2ee8374-9bbe-4eb2-a182-afc68c31817c/tmp1pcxf_mm.__wz_cache'