by outgoing.mit.edu (8.13.8/8.12.4) with ESMTP id u7TNPWl1024422 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT) for centos@centos.org; Mon, 29 Aug 2016 19:25:33 -0400 To: centos@centos.org References: d80864bd-9497-86be-d8db-cdf3c0378d7c@mit.edu 73650851-909c-c43a-a926-53cbdf14af6f@hogranch.com From: Pat Haley phaley@mit.edu Message-ID: 7fe0f111-e54b-6f26-d816-a82851ddd0bd@mit.edu Date: Mon, 29 Aug 2016 19:25:28 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: 73650851-909c-c43a-a926-53cbdf14af6f@hogranch.com Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrOIsWRmVeSWpSXmKPExsUixG6nrpt35Ei4wYsubotlZxYwOzB6rGyb zBzAGMVlk5Kak1mWWqRvl8CVcfjCYsaCi3wVl2beZGlgbObuYuTkkBAwkXi19idjFyMXh5BA G5PEgemTmSCck4wS7X9vsEM4B5kk7jx+wwzSIizgIPHnZzsbiC0iICrRs/gVmC0kUCBxcdVH JhCbTUBBYt2tM+wgNq+AlcSdttNgNSwCqhIbzy1hBLFFBSIkbq36yAhRIyhxcuYTFhCbE2j+ snOLwOYwC9hK3Jm7mxnClpfY/nYO8wRG/llIWmYhKZuFpGwBI/MqRtmU3Crd3MTMnOLUZN3i 5MS8vNQiXSO93MwSvdSU0k2MoPDjlOTdwfjvrtchRgEORiUeXgunI+FCrIllxZW5hxglOZiU RHmnxgOF+JLyUyozEosz4otKc1KLDzFKcDArifBmHgDK8aYkVlalFuXDpKQ5WJTEebtmHAgX EkhPLEnNTk0tSC2CycpwcChJ8EocBmoULEpNT61Iy8wpQUgzcXCCDOcBGv7zEMjw4oLE3OLM dIj8KUZFKXFeR5CEAEgiozQPrhecHtTYD71iFAd6RZj3EMgKHmBqget+BTSYCWhwwZ3DIINL EhFSUg2MtRuzrx96Znrb3Jt1f0vz9MNWL/5JBMb1/RXy/fB5Q+S907I8qTN2M14+rpuzfO68 mWuTyy+/PL6g0WS56+LWBIuKnRatOnlWseeTJ3M5RHeeDpqVttdg0RyGQBflxju85xlOVFzd 5/+Oy7lEeWp0Q1zWW7mp4m+9HzTMurBGZKFZZIeT2P1QJZbijERDLeai4kQAP19NXOoCAAA= Subject: Re: [CentOS] CentOS 6: files now owned by nobody:nobody X-BeenThere: centos@centos.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: CentOS mailing list <centos.centos.org> List-Unsubscribe: https://lists.centos.org/mailman/options/centos, mailto:centos-request@centos.org?subject=unsubscribe List-Archive: http://lists.centos.org/pipermail/centos/ List-Post: mailto:centos@centos.org List-Help: mailto:centos-request@centos.org?subject=help List-Subscribe: https://lists.centos.org/mailman/listinfo/centos, mailto:centos-request@centos.org?subject=subscribe X-List-Received-Date: Mon, 29 Aug 2016 23:25:35 -0000

I believe NFSv4. On the machine that contains the physical disks (is that the "server" or the "NSF mount"?) the relevant line from /etc/fstab seems to be

UUID=bde58f42-4ac4-4763-b0a8-f83723f0e2a0 /home ext4 defaults 1 2

while on my front-end machine its

mseas-data2:/home /home nfs defaults 0 0

where mseas-data2 is the name of the machine that contains the physical disks. Note that it isn't just root that's becoming "nobody" but all the users

Thanks

On 08/29/2016 07:14 PM, John R Pierce wrote:

On 8/29/2016 3:59 PM, Pat Haley wrote:

...

We are running a cluster under CentOS 6.6. We recently attached a new NAS device, running CentOS 6.8 and rsync'd our user file system to it. We noticed that all the files were owned by nobody (with nobody as the group). We copied over the /etc/passwd and /etc/group files from our front-end server to our NAS server. If we log in to the NAS server we see the files owned by their correct owners. However, doing an ls from the front-end server or any of the compute nodes still shows the files owned by "nobody". We rebooted one of the compute nodes but it still sees the files owned by nobody.

a CentOS server isn't really a 'NAS device', as NAS implies an appliance storage device.

this is NFS? NFSv3, or NFSv4? what NFS options are on the server and on the NFS mount? quite often NFS servers force root to nobody.