Andy Kurth created VCL-905:
------------------------------
Summary: VMware code should ignore files under .snapshot
directories
Key: VCL-905
URL: https://issues.apache.org/jira/browse/VCL-905
Project: VCL
Issue Type: Improvement
Components: vcld (backend)
Reporter: Andy Kurth
Assignee: Andy Kurth
Fix For: 2.5
Some Netapp and other storage units may automatically create copies of the
contents of a volume on a schedule. For Netapp units, snapshot copies are
stored under a _.snapshot_ directory on the volume. This directory may be
accessible from the VM host. It is possible to configure the volume so that
this directory is not displayed on hosts, however, this is not the default.
Problems occur if the _.snapshot_ directory is accessible on the VM host
because the VCL code may attempt to alter the files contained in it. As an
example, if the code attempts to delete a VM for which a copy of its working
directory was saved in a Netapp snapshot:
{noformat}
|Linux.pm:delete_file|1651| ---- WARNING ----
|Linux.pm:delete_file|1651| 2015-09-13 13:59:55|Linux.pm:delete_file|1651|error
occurred attempting to delete file or directory on vcl3o1-5:
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4':
|Linux.pm:delete_file|1651| command: 'rm -rfv
/vmfs/volumes/fas8040/\.snapshot/daily\.2015\-09\-12_0010/vclv99\-44_3705\-v4'
|Linux.pm:delete_file|1651| exit status: 1
|Linux.pm:delete_file|1651| output:
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/vm5_22-v4.vmx':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/vm5_22-v4.vmsd':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/vm5_22-v4-Snapshot1.vmsn':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/win7-Maple18Win7-3705-v4-000001-delta.vmdk':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/win7-Maple18Win7-3705-v4-000001.vmdk':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/vmx-vm5_22-v4-1301112663-1.vswp':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/.lck-9410270400000000':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/vm5_22-v4.vmx.lck':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/.lck-9810270400000000':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/vm5_22-v4-4d8d6757.vswp':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/vmware.log':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/.lck-9910270400000000':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/.lck-9310270400000000':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4/nvram':
Read-only file system
|Linux.pm:delete_file|1651| rm: can't remove
'/vmfs/volumes/fas8040/.snapshot/daily.2015-09-12_0010/vm5_22-v4': Read-only
file system
|Linux.pm:delete_file|1651| ( 0) Linux.pm, delete_file (line: 1651)
|Linux.pm:delete_file|1651| (-1) VMware.pm, delete_vm (line: 5506)
|Linux.pm:delete_file|1651| (-2) VMware.pm, remove_existing_vms (line: 1426)
|Linux.pm:delete_file|1651| (-3) VMware.pm, load (line: 513)
|Linux.pm:delete_file|1651| (-4) new.pm, reload_image (line: 634)
|Linux.pm:delete_file|1651| (-5) new.pm, process (line: 277)
{noformat}
The backend VMware code should be updated to ignore files under _.snapshot_.
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