On Mon, Oct 12, 2020 at 6:03 PM <[email protected]> wrote:
> Greetings,
>
> I'm trying to upgrade from 4.3 to 4.4. When trying to mount the original
> nfs items, I'm getting the following error:
>
> vdsm.storage.exception.StorageServerAccessPermissionError: Permission
> settings on the specified path do not allow access to the storage. Verify
> permission settings on the specified storage path.: 'path =
> /rhev/data-center/mnt/nfshost:nfs_path'
>
> with the following stack trace:
>
> 2020-10-08 19:00:17,961+0000 ERROR (jsonrpc/4) [storage.HSM] Could not
> connect to storageServer (hsm:2421)
> Traceback (most recent call last):
> File "/usr/lib/python3.6/site-packages/vdsm/storage/fileSD.py", line 82,
> in validateDirAccess
> getProcPool().fileUtils.validateAccess(dirPath)
> File "/usr/lib/python3.6/site-packages/vdsm/storage/outOfProcess.py",
> line 194, in validateAccess
> raise OSError(errno.EACCES, os.strerror(errno.EACCES))
> PermissionError: [Errno 13] Permission denied
>
> During handling of the above exception, another exception occurred:
>
> Traceback (most recent call last):
> File "/usr/lib/python3.6/site-packages/vdsm/storage/hsm.py", line 2418,
> in connectStorageServer
> conObj.connect()
> File "/usr/lib/python3.6/site-packages/vdsm/storage/storageServer.py",
> line 449, in connect
> return self._mountCon.connect()
> File "/usr/lib/python3.6/site-packages/vdsm/storage/storageServer.py",
> line 190, in connect
> six.reraise(t, v, tb)
> File "/usr/lib/python3.6/site-packages/six.py", line 703, in reraise
> raise value
> File "/usr/lib/python3.6/site-packages/vdsm/storage/storageServer.py",
> line 183, in connect
> self.getMountObj().getRecord().fs_file)
> File "/usr/lib/python3.6/site-packages/vdsm/storage/fileSD.py", line 93,
> in validateDirAccess
> raise se.StorageServerAccessPermissionError(dirPath)
>
>
> via an ls, it looks like there are the correct permissions:
>
> ls -alh
> total 0
> drwxr-xr-x. 1 vdsm kvm 100 Oct 8 19:15 .
> drwxr-xr-x. 4 vdsm kvm 115 Oct 8 19:02 ..
> drwxr-xr-x. 1 vdsm kvm 52 Oct 1 20:35
> ffe7b7bb-a391-42a9-9bae-480807509778
> d---------. 1 vdsm kvm 22 Mar 17 2020 '#recycle'
>
>
The permissions and ownership seem correct, make sure the rest is set as
specified:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/administration_guide/sect-preparing_and_adding_nfs_storage
In addition make sure you are exporting the shares with
*(rw,sync,no_root_suqash) for the relevant export paths on the NFS server
side,
and there is selinux context set for the shared folders:
# ls -lhZ
...
drwxr-xr-x. 2 vdsm kvm unconfined_u:object_r:default_t:s0 6 Jul 20 18:21
data
>
> But, I wrote a short script to check the individual permissions that are
> checked, and it thinks I can't write to the directory:
>
> We can Read From it: /rhev/data-center/mnt/nfshost:nfspath
> We can't write to it: /rhev/data-center/mnt/nfshost:nfspath
> We can execute to it: /rhev/data-center/mnt/nfshost:nfspath
> This is doing a simple:
>
> print(os.stat(path))
> if os.access(path, os.F_OK):
> print("It Exists", "/rhev/data-center/mnt/nfshost:nfspath")
> else:
> print("It Doesn't Exists", "/rhev/data-center/mnt/nfshost:nfspath")
> if os.access(path, os.R_OK):
> print("We can Read From it: ", "/rhev/data-center/mnt/nfshost:nfspath")
> else:
> print("We can't Read from it: ", "/rhev/data-center/mnt/nfshost:nfspath")
> if os.access(path, os.W_OK):
> print("We can write to it: ", "/rhev/data-center/mnt/nfshost:nfspath")
> else:
> print("We can't write to it: ", "/rhev/data-center/mnt/nfshost:nfspath")
> if os.access(path, os.X_OK):
> print("We can execute to it: ", "/rhev/data-center/mnt/nfshost:nfspath")
> else:
> print("We can can't to it: ", "/rhev/data-center/mnt/nfshost:nfspath")
>
> I took this same checks over to the Centos 7 host, and I it passes the
> checks fine.
>
>
> Does anyone have any ideas?
>
> Thanks,
> Lee
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