search for: nfsstat

Is there an equivalent command to nfsstat -m on Centos 3.4? On solaris it reports statistics for each NFS mounted file system i.e.: /mount/point from host:/some/path Flags: vers=3,proto=tcp,sec=sys,hard,intr,link,symlink,acl,rsize=32768,wsize=32768,retrans=5,timeo=50 Attr cache: acregmin=3,acregmax=60,acdirmin=30,acdirmax=60 On...

...set up NFSv4 server. To make sure I set vfs.nfsd.server_min_nfsvers=4. I can check its version, for example, by tcpduming and then I can see in wireshark lines like: Network File System Program Version: 4 V4 Procedure: COMPOUND.... .... is there any easier way to check its version? I see there is nfsstat -e option which shows delegs and locks. But all other ones are combined with nfsv3 I guess (On Ubuntu there are separate lines: v3 and v4) and on the client side, is it possible to check which version is exported or mounted? something like % showmount -e nfsserver Is forcing mount to use nfsv4 10...

...e problem we have is that new servers have performance problems. Even when have a small part of our total users (about 25%) directed to the new farm, performance is very poor, even useless. Looking for NFS problems, we have found a lot of differences in nfs operations. For example, this is the nfsstat of one of a new servers at this moment: myotis21:~# nfsstat Client rpc stats: calls retrans authrefrsh 414528349 885 37 Client nfs v3: null getattr setattr lookup access readlink 0 0% 95673837 23% 3961938 0% 89586364 21% 110097351 26% 2930961...

...S getattr, lookup and access operations. The weird thing is that the number of these operations increases over time. I have an mrtg graph (which I didn't want to attach here) showing e.g. 200 NFS Ops on Monday, measured with filer-mrtg, going up to, e.g. 1200 in a straight line within days. nfsstat -l on the filer proves beyond doubt that the load is caused by this particular machine. dstat shows me which NFS operations are causing it. date/time | null gatr satr look aces ... 10-09 12:22:52| 0 0 0 0 0 10-09 12:22:53| 0 525 0 602 602 10-09 12:22:54| 0...

.../export 10.0.0.0/24(ro,fsid=0,no_subtree_check,sync) 172.17.0.0/16(ro,fsid=0,no_subtree_check,sync) [...] /export/mail 172.17.0.0/16(rw,root_squash,no_subtree_check,sync) spindizzy> and then some mounting: bash-4.2# id virtual uid=1200(virtual) gid=1200(virtual) groups=1200(virtual) bash-4.2# nfsstat -m bash-4.2# mount.nfs4 -v -o proto=tcp fileserver.in.kushana.com:mail /var/spool/vmail mount.nfs4: timeout set for Wed Oct 8 03:11:43 2014 mount.nfs4: trying text-based options 'proto=tcp,addr=10.0.0.18,clientaddr=172.17.0.29' bash-4.2# nfsstat -m /var/spool/vmail from fileserver.in.kusha...

...sitive information) - information about geom providers (at least geom mirror list works) - the list of the loaded kernel modules via kldstat - some interesting information about the network related stuff via netstat - information about configured swap space via swapinfo - NFS related statistics via nfsstat - a lot of interesting stuff via sysctl and maybe more, I can't think of currently. Are there any ways to close (some of) these? Thanks, -- Attila Nagy e-mail: Attila.Nagy@fsn.hu Adopt a directory on our free software phone @work: +361 371 3536 server! h...

When somebody is hammering on the system, I want to be able to detect who''s doing it, and hopefully even what they''re doing. I can''t seem to find any way to do that. Any suggestions? Everything I can find ... iostat, nfsstat, etc ... AFAIK, just show me performance statistics and so forth. I''m looking for something more granular. Either *who* the activity belongs to, or *what* files are active (which might indirectly let me figure out who) ... etc. If it makes the problem any easier (or harder) all the a...

Can anybody tell me how to measure the raw performance of a new system I''m putting together? I''d like to know what it''s capable of in terms of IOPS and raw throughput to the disks. I''ve seen Richard''s raidoptimiser program, but I''ve only seen results for random read iops performance, and I''m particularly interested in write

...t I can create a new file on the share from windows explorers, with the usual right click, new (folder, text file, etc), and I can delete files, but I cannot edit any or "drag" any files into the share. FWIW this is with nfs v3 client and server, and this is probably off-topic, but a nfsstat on the original NFS server machine, gives the following: # nfsstat Server rpc stats: calls badcalls badauth badclnt xdrcall 491445 9 3 6 0 I'll have to explore this, but as far as I can tell this really seems to be a NFS-SMB interoperability issue....

...list 1577 register caddr_t cp; 1578 register int32_t t1, t2; 1579 caddr_t bpos, dpos, cp2; 1580 int error = 0, wccflag = NFSV3_WCCRATTR; 1581 struct mbuf *mreq, *mrep, *md, *mb, *mb2; 1582 int v3 = NFS_ISV3(dvp); 1583 1584 nfsstats.rpccnt[NFSPROC_REMOVE]++; 1585 nfsm_reqhead(dvp, NFSPROC_REMOVE, 1586 NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(namelen)); (kgdb) p *proc Cannot access memory at address 0x0. (kgdb) p *dvp $3 = {v_flag = 0, v_usecount = 9, v_writecount = 0, v_holdcnt = 0, v_id = 42...

...reads has nothing to do with the number of cores on the machine. It depends on the I/O, network speed, type of workload etc. We usually start with 32 threads and increase if necessary. You can check the statistics with: watch 'cat /proc/net/rpc/nfsd | grep th? Or you can check on the client nfsstat -rc Client rpc stats: calls retrans authrefrsh 1326777974 0 1326645701 If you see a large number of retransmissions, you should increase the number of threads. However, your problem could also be related to the filesystem or network. Do you have jumbo frames (if yes, you shoul...

...s > ??????? browseable = No > > [homes] > ??????? comment = Home Directories > ??????? valid users = %S > ??????? create mask = 0700 > ??????? directory mask = 0700 > ??????? browseable = No > >> >> What version of NFS are you using 3 or 4 ? > > nfsstat -s shows v4 but I'm using the v3 style settings in /etc/exports > (e.g. /home/shares??? 192.168.1.0/24(rw,sync) ). I haven't set up > anything that takes advantage of any v4 features. I note that there are > options for using Kerberos in v4, which I'm guessing is where you a...

Hi, With help from Oleg we got the right patches applied and NFS working well. Maximum performance was about 60 MB/sec. Last week that dropped to about 12.5 MB/sec and I cannot find a reason. Lustre clients all obtain 100+ MB/sec on GigE. Each OST is good for 270 MB/sec. When mounting the client on one of the OSSs I get 230 MB/sec. Seems the speed is there. How can NFS and Lustre be tuned

...>> client is ultra dumb and repeatedly downloading entire messages, read >> and unread, attachment and all (i.e. you're truly bandwidth limited?) > > It most certainly does not do that. If this is the case for the OP, it's back to square one to find log entries, and/or nfsstat/iostat/vmstat/etc output to see what is "killing" the server. File locking issues, mail_max_userip_connections and process limit values could also cause service flakiness. Apple mail readers seems to gobble up IMAP connections like candy. Joseph Tam <jtam.home at gmail.com>

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): http://daemons.net/~matty/code/dfsstat.pl.txt If you think the scripts are useful, you can snag them from my website: http://daemons.net/~matty I plan to add NFSv4 support to nfsclient...

...which shows the original wrong result still. So now I think it's a client caching problem. Can anyone explain the above situation and perhaps some settings that will resolve this without requiring the nfs client to open the file in some way before it gets the proper file attributes? "nfsstat -m" of the client returns the following: Flags: rw,vers=3,rsize=32768,wsize=32768,acregmax=3,acdirmin=3,acdirmax=3,hard, intr,proto=tcp,timeo=600,retrans=2,sec=sys,addr=10.0.12.152 Thanks for any help. Steve Campbell

Hi all, Is there any tool we can use to see on NFS: 1. What files are being accessed 2. The performance (bandwidth, etc) Thank you.

...t, wheter the problem is in linux or in solaris or in samba or elsewhere?? Using the nfs-shares directly from linux with cp seems to work, sometimes fast, sometimes slow. So it seems to be the combination samba and nfs. Perhaps statistics helps to understand, what happens. Output from /usr/sbin/nfsstat on linux-side: ... Client rpc stats: calls retrans authrefrsh 2776963 6929 0 ... Client nfs v3: null getattr setattr lookup access readlink 0 0% 2174692 78% 1922 0% 211235 7% 625 0% 87 0% read write create mkdir symlink...

--On Wednesday, April 29, 2015 08:35:29 AM -0500 Matt Garman <matthew.garman at gmail.com> wrote: > All indications are that CentOS 6 seems to be much more "aggressive" > in how it does NFS reads. And likewise, CentOS 5 was very "polite", > to the point that it basically got starved out by the introduction of > the 6.5 boxes. Some things come to mind as

...ver 60+. (Normal of sub 1.0). I have been hunting this for a while, and I believe it comes down to "deliver". System setup: NFS servers: x4540 Solaris 10 x64 ZFS over NFS. NFS clients: Solaris 10 x64 postfix-2.4.1 with dovecot-1.1.11 deliver. What appears to happen, when I check for nfsstat per process, is that I see 4 processes (in this case on vmx04) taking up majority of NFS ops: root at vmx04:/var/tmp# ./nfsclientstats.pl process read write readdir getattr setattr lookup access create remove rename mkdir rmdir 24303 0 0 1 19 0 190 171...