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Questions tagged [nfs4]

Network File System version 4 (NFSv4)

0
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1answer
18 views

Mount NFS4 share as different user

I have an AWS EFS NFS4 share (shareA) that is mounted by some servers where all files are owned by userA/uid=800. I'd like to mount that share onto the b-series servers, configured to look like userB/...
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0answers
26 views

How to prevent Icinga's disk check from interupting idle NFS mounts?

I have a mount and automount unit pair for systemd, that mounts a NFS share from another host when needed. It is unmounted automatically after 60 seconds of idle time. Works fine so far. But if I ...
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0answers
24 views

Ubuntu 18.04, NFS mount over VPN goes stale, requires manual re-mount

trying to figure out how to fix this. I have two sites connected through an IPSec VPN, with an Ubuntu 18.04 box at site A mounting over the VPN to an NFS server at site B. Works great, except: every ...
0
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1answer
77 views

NFS mount Permission denied

I created a user and a group with the same uid and gid on the NFS server and the NFS client side. The export on the server side looks like this: /volume1/nextcloud *(rw,async,no_wdelay,...
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0answers
47 views

NFS share group permission not respected

I have a linux client and freebsd nfs server (NAS4free actually) NFS share is mounted by fstab this way: server:/mnt/disk/ZHomeData on /data type nfs (rw,nosuid,relatime,vers=3,rsize=32768,wsize=...
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0answers
20 views

How to fix accumulating NFS DELEG locks necessitating a hard power-down of the client?

Our legacy production system has a data server and a compute client that interact via NFSv4; both run on VMWare virtualization. We have determined that as the compute client’s software runs, over the ...
1
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1answer
69 views

PHP is_writable always false on NFS

Sorry, I'm not sure, if this is the correct forum because I don't know the cause for the issue, I'm facing. I installed NextCloud on a Raspbian (Stretch 9) and moved the data directory to a mounted ...
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0answers
61 views

Infiniband configured and connected but indicator lights unlit on HBAs and no functionality in OS

I have installed two dual-port FDR Infiniband VPI HBAs, one in each of two servers running CentOS 6.9, server1>lspci 03:00.0 Network controller: Mellanox Technologies MT27500 Family [ConnectX-3] ...
2
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1answer
115 views

What is the difference between Ceph and NFS when it comes to shared file storage?

Can someone explain to me what is Ceph compared to NFS? From a shared file storage perspective? What is the added value of using Ceph instead of NFS?
0
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1answer
107 views

How do I use /etc/export.d/?

How do I use /etc/export.d/ to export filesystems? I am attempting to export an sge cell's configuration via nfs. However, the export does not appear to work. # cat /etc/exports.d/sge-example.com /...
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0answers
179 views

NFS ignores secondary groups

My NFS server seems to be ignoring secondary groups. I have fewer than 16 groups per user, but have --manage-gids on. The NFS share doesn't mount when this option is missing. Users and groups are ...
2
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1answer
43 views

RHEL6 NFSv4 client acting like NFSv3?

My understanding is NFSv4 clients should immediately connect to the NFSv4 service on the server, skipping the rpcbind portmapper and mountd service interactions entirely, but I'm seeing my RHEL6 ...
2
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1answer
73 views

bonding-rr vs single 10G for NFS NAS - pros and cons?

I'm standing before choice of NICs and switch for storage server and virtualization hosts and I can't decide between 10G and quad gigabit with bonding-rr. 10G is noticeably more expensive solution and ...
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0answers
54 views

nfs4_setfacl reports error on files of mounted folder

sorry to bothering you again I mount a nfsv4 folder(both client,server are centos7.4) via command sudo mount -t nfs -o v4.0,sec=krb5 ark-centos7-ker.qa.arkivio.com:/export/nfs1 /nfs4-mnt-dir ...
1
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1answer
27 views

High CPL resolved temporarily by NFS restart

CentOS 6.9 I've got an NFS (v4) file server whose exports started becoming very slow to respond on clients today. While this is happening, the exported volumes are not slow on the server itself. ...
1
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1answer
747 views

NFS v4 server is causing stale file handle, but only when bind mount is a subdirectory

This problem is basically driving me insane, at this point. I have an Ubuntu 16.04 NFS server that was working fine with this configuration: /etc/fstab: UUID=b6bd34a3-f5af-4463-a515-be0b0b583f98 /...
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0answers
393 views

QNAP NFSv4 user mapping ubuntu

I'm unable to map client username to server username when I mount a QNAP storage on Ubuntu client with NFSv4 (I don't want to use the UID correspondence). In my case neither the UID and the username ...
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0answers
374 views

Automount mac home directories using NFS4

I'm trying to set up automounting of user home directories using NFSv4 on Mac clients. Everything appears to work as expected except for logins via the Mac GUI. These hang with a spinning cursor. ...
0
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1answer
1k views

Is Samba 4 a good alternative to FreeIPA?

Our goal is to set up one file server / print server on a small LAN. To solve file permissions issues and access issues we have encountered, we believe a type of LDAP solution should be part of this. ...
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0answers
21 views

How to debug nfsrootfs not booting issue

We have Beaglebone black based custom board with 4GB eMMC and 256MB RAM. We use network boot for putting software on eMMC for very first time. For this purpose we have configured ubuntu PC for ...
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0answers
66 views

NFS4 - No space left on device, but there is enough space and inodes

I get a strange error on my centos 7 server when I try to create a new folder. It complains, that there is not enough space (mkdir: cannot create directory ‘sources’: No space left on device). But the ...
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1answer
308 views

NFSv4 and different port

Is it possible to start NFSv4 server on different than default (2049) port? I searched the web for nfs-kernel-server and RPCMOUNTDOPTS, but did not find any configuration options. My setup uses ...
0
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1answer
114 views

How to solve NFS cross-mounting ordering “dead-lock”

I have 3 NFS servers, all basically doing cross mounts, e.g.: Server "A" mounts from "B"/"C" Server "B" mounts from "A"/"C" Server "C" mounts from "A"/"B" Obviously this creates a rather annoying ...
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1answer
765 views

How to configure reasonable timeout for nfs?

I have nfs mount to a directory on remote machine. When the remote machine is down or disconnected, any command on the nounted nfs (such as: ls, or open file) is stuck. I want it to just fail in a ...
2
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0answers
423 views

Non-root user needing chown capability on NFS client

I am providing an NFS server as part of a collaborative project with another group producing client software over which I have no control. Their software provides file management to its users through ...
0
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1answer
162 views

Why NFS4 client is trying to contact portmap service?

After upgrading Debian from wheezy to stretch I have a problem with mounting nfs4 volume. Before the upgrade the client did not try to contact portmap service (port 111), and after the upgrade it ...
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0answers
86 views

RHEL7 NFSv4 client with krb5 : how to make it non-interactive

I have a working setup in a corporate environment where we use RHEL7 together with SSSD to authenticate against Active Directory. Regular authentication works well. I managed to get the NFSv4 server ...
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0answers
245 views

NFS not mounting on boot

I have an AWS EFS that I want my Centos 7 server to mount on boot. The line from /etc/fstab that is meant to accomplish this is: xxxxxxx.efs.us-east-1.amazonaws.com:/ /mnt/EFS nfs4 nfsvers=4.1,rsize=...
2
votes
2answers
848 views

XFS: possible memory allocation deadlock in kmem_alloc

I am performing a data analysis that entails loading a large data matrix of ~112GB into a memory-mapped file using R programming language, specifically the bigmemory package (see https://cran.r-...
0
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2answers
349 views

NFS4 ubuntu: ls -al shows nobody:nobody

On Ubuntu (xenial aka 16.04) all clients show dir and file owners in all NFS4 mounted directories as nobody:nobody. User and group database comes via sssd from ldap, both client and server use the ...
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0answers
104 views

NFS permission denied on ubuntu/EC2 for Gitlab

I have two AWS EC2 Ubuntu Instances. I configured on these two hosts NFS to share Directories between Gitlab. I opened the AWS Firewall so acceess is possible and with Nmap the port is open The ...
2
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2answers
2k views

RedHat Server 7.3 trying to mount nfs share using NFS4

I am trying to mount a share located on Server1 using NFSv4, instead of NFSv3. The host server is running RHEL 5.1 (don't ask), and the client is running RHEL 7.3. I am able to mount it using NFSv3 ...
0
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0answers
259 views

autofs with nfs 4.2

I would like to enforce the auto autofs to mount the volumes using NFS version 4.2, how I should configure the autofs or the NFS server. I'm using Ubuntu 16.04.3 LTS, and the mount on the clients ...
1
vote
1answer
880 views

NFSv4 + SSSD + Active Directory: 'nobody' permissions when ldap_id_mapping disabled

I'm attempting to configure NFSv4 with KRB5 authentication in accordance with RedHat's current recommendations, using SSSD to access Active Directory. The NFS server in this case is a NAS appliance, ...
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0answers
117 views

NFSv4 client unable to mount export containing brackets or spaces but works on NFSv3

There is an issue with NFSv4 when you try to mount a path containing a space and or a bracket character. NFSv3 works fine using the path that uses a symbolic link to the actual folder and NFSv4 does ...
1
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1answer
360 views

What shared, high volume storage technology should be used when hosting in Google Cloud?

Given an auto-scaling web server farm setup that needs access to a very large number of image files, we are currently using Google Cloud Storage with a mounted FUSE folder on each web server so that ...
1
vote
1answer
166 views

Configuring NFSv4 anonymous ownership mapping (idmapd.conf) per subtree or mount?

The NFSv4 idmap approach allows a great deal of flexibility in terms of how users and accounts are mapped between the NFS server and the local system -- but with this comes significant configuration ...
1
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1answer
983 views

What is causing `input/output` errors when reading from NFS v4 on CentOS?

We're seeing apps like nginx and php-fpm error out occasionally (and temporarily) while opening good files from a connected NFS mount: php-fpm error example: 2017/05/20 22:53:09 [error] 55#0: *6575 ...
0
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1answer
94 views

NFSv4 Server Bind Exports

I have been trying to set up a NFSv4 Server with one export. In the exported directory, I want mounted file systems via bind and also data stored in the exported directory. For example: /data /...
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0answers
1k views

OpenLDAP TLS : ldap_modify error 80

I am trying to configure TLS on my LDAP server. I have two computer, one with the LDAP server and another with an NFS share containing the Let's Encrypt generated certificates. I want the first one ...
5
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2answers
539 views

How to identify which NFS client generates disk IO?

Our pool server disk is 100% busy. I checked with iotop and determined that nfsd is the top process which consumes disk IO. I need to narrow that down further and want to determine which of the ...
0
votes
1answer
306 views

NFS exportfs -a fails

I am running Volumio on my RasPi and I want to export the internal storage directory (/data/INTERNAL) so that anyone may mount it to add/remove music. When I run 'exportfs -a' I get the following ...
3
votes
1answer
610 views

Unable to mount kerberized nfs?

I want to configure kerberized nfs, and export /data/books I have 3 servers: ipa, server, client I configured ipa and added nfs service. My Steps are: In ipa: ipa service-show nfs/server.linux.rhce....
1
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1answer
614 views

NFS user mapping where user is AD authenticated, but NFS server user local accounts

Server : CentOS 7.3.1611, with NFS4 enabled. In /etc/idmapd.conf Domain = my.domain.com Local user is created as 'user' and a directory is exported over NFS: /home/user/Documents Client : Fedora 25, ...
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0answers
65 views

NFSv4 server Errors

I have an nfs server exporting /homes and clients mount this using sssd and ldap. Everything works fine. But, i recently created a central rsyslog server and all my nodes log to this server and I ...
1
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0answers
226 views

rpc.mountd[pid]: /xxx and /yyy have same filehandle for host, using first

I have an S3 bucket mounted using s3fs-fuse at /yyy and a normal drive mounted at /xxx. I am exporting both with NFS however when a client attempts mount, I see the following error: rpc.mountd[pid]: /...
2
votes
1answer
290 views

how can I access NFSv4 with kerberos auth from within Docker container?

Our NFSv4 file-server uses Kerberos authentication managed by Active Directory. I need to run a batch process inside a Docker container that accesses data held on the file-server. From within the ...
4
votes
2answers
641 views

NFS Performance issues on Oracle Linux 6.7: Shared libraries on NFS slow down system

I am currently hunting down some performance issues on some VMWare virtual machines with the same amount of memory and cpus, running Oracle Linux 6.6 (Kernel 2.6) and 6.7 (Kernel 3.8). The machines ...
0
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1answer
505 views

nfs4: how to log mount requests?

On nfs3 we've had rpc.mountd which logged nice messages to syslog like authenticated mount request from 192.168.1.11:839 for /mnt/music (/mnt/music) nfs4 is quiet silent by default. I wish I could ...
0
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1answer
200 views

elastic search repo creation

I have configured elasticsearch with cluster and I have on nfs shared folder that mounted but when I try to create and repo path with this location I have faced some issues with permission error": {...