similar to: CentOS automount 99% CPU utilization -- NFSv3 vs NFSv4?

Hi all, I have two centos6.2 servers acting as a nfs servers (nfsv3 for now). Due to some security requeriments, I need to share some folders using nfsv4 (with kerberos auth), but I have a doubt. Is it possible to serve shared folters using nfsv3 and nfsv4 (with kerberos auth) at the same time in the same server with centos6?? Nfsv3 is used to serve storage for three ESXi servers (and these

Author: thurlow Repository: /hg/zfs-crypto/gate Revision: 1713bd2d1b7b2466298721235c1f98e4e01b0be8 Log message: 6344186 NFSv3 needs to support .zfs (like NFSv4 already does) Files: update: usr/src/cmd/fs.d/nfs/mountd/mountd.c update: usr/src/cmd/fs.d/nfs/mountd/mountd.h update: usr/src/cmd/fs.d/nfs/nfslog/fhtab.h update: usr/src/cmd/fs.d/nfs/nfslog/nfslog_elf.c update:

Hi Marco, You will hit muliple problems, most can be solved. Im installing a new member here with samba 4.8.5 and building new samba 4.8.6 atm. ;-). Im (trying to ) fix this also again in this new setup. Below it a bit of what i know. > Client are in DHCP, so it is hard to use 'normal' NFSv3 mount, eg > security by IP. If they register ( or are registered) in the dns correctly

Hi, What is the magic juju that I have to put in /etc/sysconfig/autofs to get autofs to default to using NFSv4, rather than NFSv3, for mounting file systems? I don't want to place these flags into the automount maps themselves because we have a varied network with Sun, CentOS, RedHat and Macintosh systems, and the flags that have to get added to automount maps (which we distribute centrally

Howdy, I wrote a pair of scripts to measure file and NFSv3 operations, and thought I would share them with the folks on the list. You can view the script output by pointing your browser at the following URLs: Per Process NFSv3 Client statistics (inspired by fsstat/nfsstat): http://daemons.net/~matty/code/nfsclientstats.pl.txt Per Process File Operations (inspired by fsstat):

I will soon be implementing a Fedora Core 4 (or 5), 2.8MHz Xeon, 1GB RAM, 2.5TB storage, gigabit ethernet server which will hold backup copies of about 200 DVDs. These DVDs will be played through a gigabit LAN to another Fedora Core 4 (or 5) workstation using xine which will then output video to the projector in my living room. I am not asking to start a competition or war on the list. My

Hi everybody and thanks to those persons who make klibc being possible. I am booting a lessdisks system from a server. I have got it in NFSv3 but I would like use the features of NFSv4. I am using initramfs-tools so I have in my initrd.img the utility nfsmount wich make possible booting in NFSv3. I would like know if exists some version of nfsmount or some patch or, if does not, some program (a

We recently had a strange NFS performance anomaly between a V880 running snv_124 and two NetApp filers. To investigate, a DTrace NFSv4 (and eventually NFSv3) client provider would been extremely helpful. Unfortunately, all I could find were a request for code review of a v3 client provider and another request for help developing a v4 provider. Nothing seems to have come from those initiatives,

Il 11/06/2015 16:03, brd ha scritto: > hi all, > i'm managing a large installation of a dovecot cluster in director + NFS > backend architecture and we are moving from NFSv3 to NFSv4. Our NFS > server is a Netapp Hi, I'm running a similar configuration, expect for the size (medium), with Dovecot/Director and NetApp (but without clustered mode), mailbox are in Maildir

Hi, last day I tried to enable "nfsv4 delegation" on my cluster (enable nfsv4.0 and read delegation on Netapp and remount the volume on Linux Centos 6.7 clients with Dovecot+Director). It was a failure, after some minutes the load on clients was high, and in dovecot.log I found these errors (repeated continuously): Aug 17 20:28:17 pop01eeh dovecot: imap(info at domain.com): Error:

Il 12/06/2015 13:02, brd ha scritto: > Alessio Cecchi wrote: > [...] >> Have you already try to run NFSv4? > it's in place on a (very) small sample of mailboxes in dbox format, no issues > up to now (Debian Wheezy mainline kernel) Good to know, let me know what will be when the load will grow. >> When we switch to netapp and nfsv4 we had many problems (lock problems

hi all, i'm managing a large installation of a dovecot cluster in director + NFS backend architecture and we are moving from NFSv3 to NFSv4. Our NFS server is a Netapp in clustered mode and reading technical specs of NFSv4 delegation feature it seems that enabling delegation in this type of dovecot architecture should bring great benefits: only one backend server access a specific mailbox at a

Alessio Cecchi wrote: [...] > Have you already try to run NFSv4? it's in place on a (very) small sample of mailboxes in dbox format, no issues up to now (Debian Wheezy mainline kernel) > When we switch to netapp and nfsv4 we had many problems (lock problems > and instability) and we had to go immediately to NFSv3. I don't know if > was a netapp problem or nfs client (Debian

just a quick update: no issues with NFSv4.0 (load is slowly growing, currently ~7k mailboxes) instead, bad news from delegation front, we enabled it for a couple of days but we ran in ugly issues: processes went in "uninterruptible sleep" state, load average gets huge, reboot was the only escape :-( -brd Alessio Cecchi wrote: > Il 12/06/2015 13:02, brd ha scritto: > >Alessio

Hi, We've been using autofs and LDAP automount maps for years now, and it has worked well. We run an environment that has CentOS, RHEL, Solaris and FreeBSD servers and clients. Historically, all our automount maps have looked like this: -vers=3 server:/export/home/& However, we're switching to NFSv4 and therefore we need to remove the -vers=3 flag. For CentOS 6.3, Solaris and

Hi, We are running into a problem with a Samba setup and would like to know if a current fix or workaround is at all possible. Our setup is a NetApp filer serving NFS v4 that is mounted by Solaris and Linux servers. On those servers we are using Samba to create shares of those NFSv4 mounted filesystems. We are migrating to this NFSv4 setup from an existing Solaris NFSv3+Posix ACL setup that also

Hi, in this tipical setup (Dovecot/Director thate share Maildir via NFS) on your NFS Server you have (about) 90% of read operations and only 10% of write operations. If you see detailed stats for NFS operations you have 40-50% of GETATTR, this means that NFS/Dovecot clients are caching data (mainly dovecot index files) but they have to revalidate the cache frequently asking to the NFS

Hai, I'm getting somewhere, here you go, a snap of what i have atm. And what works atm. Im asuming you have winbind already running. Obligated is A+PTR record in the DNS. You can turn or the rdns check in krb5.conf but i did not test that. # Tested on Debian Stretch - NFSv4 SERVER apt-get install --auto-remove nfs-kernel-server systemctl stop nfs-* Added in krb5.conf below the

Hai, Hmm.. Bummer.. I just discovered the debian package dont have the vfs_nfs4acl include in the build. And because of that it's not in my packages. I'll have a look into it, see what i can make of it. Greetz, Louis > -----Oorspronkelijk bericht----- > Van: samba [mailto:samba-bounces at lists.samba.org] Namens > L.P.H. van Belle via samba > Verzonden: dinsdag 9

I have a situation where I need to share, via Samba, a filesystem mounted via NFSv4. I'm struggling with the best way to make Samba see the NFSv4 ACLs and enumerate them to provide the proper SMB/CIFS access to the files, instead of "Access Denied" errors that I currently get. Looking at the Samba source, the only obvious NFSv4 stuff appears to be the following: - zfsacl, available