[opensuse] 2GB File size limit exceeded over NFS on 10.3
I have a server that's been running fine for some years with Suse 9.2. I've just installed 10.3 and am now getting 'File size limit exceeded' errors. The access is being made by an application on another box, running 9.2. It's trying to copy a 2.7 GB file from a local disk to a filesystem on the server that it's mounting using NFS. The filesystem is reiserfs and was not changed when I upgraded the OS. Both machines are 64-bit. The application has worked fine for years but now says: File size limit exceeded I don't have a file size limit (file size (blocks, -f) unlimited) Google showed it may be a restriction of NFS V2 though why that is now running is another mystery. rpcinfo and nfsstat shows that server and client are both running both v2 and v3. I haven't been able so far to find out which version is in use for a particular mount. How can I do that? Does anybody recognize these symptoms? Thanks, Dave -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Dave Howorth
I have a server that's been running fine for some years with Suse 9.2. I've just installed 10.3 and am now getting 'File size limit exceeded' errors.
The access is being made by an application on another box, running 9.2. It's trying to copy a 2.7 GB file from a local disk to a filesystem on the server that it's mounting using NFS. The filesystem is reiserfs and was not changed when I upgraded the OS. Both machines are 64-bit. The application has worked fine for years but now says:
File size limit exceeded
I don't have a file size limit (file size (blocks, -f) unlimited)
Google showed it may be a restriction of NFS V2 though why that is now running is another mystery. rpcinfo and nfsstat shows that server and client are both running both v2 and v3. I haven't been able so far to find out which version is in use for a particular mount. How can I do that?
Does anybody recognize these symptoms?
You might use the old reiserfs format which cannot cope with files larger than 2 GB - or one of the tools in 9.2 cannot, Andreas -- Andreas Jaeger, Director Platform/openSUSE, aj@suse.de SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg) Maxfeldstr. 5, 90409 Nürnberg, Germany GPG fingerprint = 93A3 365E CE47 B889 DF7F FED1 389A 563C C272 A126
Andreas Jaeger wrote:
You might use the old reiserfs format which cannot cope with files larger than 2 GB - or one of the tools in 9.2 cannot,
I don't think so, since it's been working for years :) It's only stopped working since I installed 10.3 on the server. Apart from root, the filesystems are exactly as they were before. Cheers, Dave -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Dave Howorth wrote:
I have a server that's been running fine for some years with Suse 9.2. I've just installed 10.3 and am now getting 'File size limit exceeded' errors.
The access is being made by an application on another box, running 9.2. It's trying to copy a 2.7 GB file from a local disk to a filesystem on the server that it's mounting using NFS. The filesystem is reiserfs and was not changed when I upgraded the OS. Both machines are 64-bit. The application has worked fine for years but now says:
File size limit exceeded
I don't have a file size limit (file size (blocks, -f) unlimited)
Google showed it may be a restriction of NFS V2 though why that is now running is another mystery. rpcinfo and nfsstat shows that server and client are both running both v2 and v3. I haven't been able so far to find out which version is in use for a particular mount. How can I do that?
Does anybody recognize these symptoms?
Yes, You are probably establishing a NFSv2 connection. The workaround I used to solve the problem was to instruct the server not to accept NFSv1 nor NFSv2 connections. But, you can try to force a specific version on the mount command from the client side by giving the parameter 'nfsvers=3'. eg: mount -t nfs -o defaults,nfsvers=3 nfsserver:/share /mountpoint If it works, you can then instruct the server not to accept NFSv1/2 connections, if it suits your needs, of course.
Thanks, Dave
Hope it helps, Rui -- Rui Santos http://www.ruisantos.com/ Veni, vidi, Linux! -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Rui Santos wrote:
Dave Howorth wrote:
I have a server that's been running fine for some years with Suse 9.2. I've just installed 10.3 and am now getting 'File size limit exceeded' errors.
The access is being made by an application on another box, running 9.2. It's trying to copy a 2.7 GB file from a local disk to a filesystem on the server that it's mounting using NFS. The filesystem is reiserfs and was not changed when I upgraded the OS. Both machines are 64-bit. The application has worked fine for years but now says:
File size limit exceeded
I don't have a file size limit (file size (blocks, -f) unlimited)
Google showed it may be a restriction of NFS V2 though why that is now running is another mystery. rpcinfo and nfsstat shows that server and client are both running both v2 and v3. I haven't been able so far to find out which version is in use for a particular mount. How can I do that?
Does anybody recognize these symptoms?
Yes,
You are probably establishing a NFSv2 connection.
That's what I'm guessing as well. I want to find out what versions all the connections are using to confirm that, but I don't know how.
The workaround I used to solve the problem was to instruct the server not to accept NFSv1 nor NFSv2 connections.
That's what I think I'd like to do, but I need to discover what all the existing mounts are and find out why any V2 ones are V2 and whether they need to be before I can turn off V2 mount support.
But, you can try to force a specific version on the mount command from the client side by giving the parameter 'nfsvers=3'. eg: mount -t nfs -o defaults,nfsvers=3 nfsserver:/share /mountpoint
Thanks, I'll try that to at least see if I can fix the specific issue I have with this particular application. Cheers, Dave
If it works, you can then instruct the server not to accept NFSv1/2 connections, if it suits your needs, of course.
Thanks, Dave
Hope it helps, Rui
-- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
You'll need to read my reply using the (1), (2), (3) sequence for it to make sense :) Sorry, it was easier than cutting and pasting bits Dave Howorth wrote:
Rui Santos wrote:
Dave Howorth wrote:
I have a server that's been running fine for some years with Suse 9.2. I've just installed 10.3 and am now getting 'File size limit exceeded' errors.
The access is being made by an application on another box, running 9.2. It's trying to copy a 2.7 GB file from a local disk to a filesystem on the server that it's mounting using NFS. The filesystem is reiserfs and was not changed when I upgraded the OS. Both machines are 64-bit. The application has worked fine for years but now says:
File size limit exceeded
I don't have a file size limit (file size (blocks, -f) unlimited)
Google showed it may be a restriction of NFS V2 though why that is now running is another mystery. rpcinfo and nfsstat shows that server and client are both running both v2 and v3. I haven't been able so far to find out which version is in use for a particular mount. How can I do that?
Does anybody recognize these symptoms?
Yes,
You are probably establishing a NFSv2 connection.
That's what I'm guessing as well. I want to find out what versions all the connections are using to confirm that, but I don't know how.
(3) I still haven't found any way to discover what NFS version particular mounts are using.
The workaround I used to solve the problem was to instruct the server not to accept NFSv1 nor NFSv2 connections.
(2) The script /etc/init.d/nfsserver was completely rewritten between 9.2 and 10.3. In 9.2 it started rpc.mountd like this: startproc /usr/sbin/rpc.mountd while in 10.3 it starts it like this: echo "+2 +3 -4" > /proc/fs/nfsd/versions VERSION_PARAMS="--no-nfs-version 4" ... startproc /usr/sbin/rpc.mountd $VERSION_PARAMS I don't know whether that would be enough to change the default behaviour. But there doesn't seem to be any provision to change the options that rpc.mountd is started with. Did you hack the script?
That's what I think I'd like to do, but I need to discover what all the existing mounts are and find out why any V2 ones are V2 and whether they need to be before I can turn off V2 mount support.
But, you can try to force a specific version on the mount command from the client side by giving the parameter 'nfsvers=3'. eg: mount -t nfs -o defaults,nfsvers=3 nfsserver:/share /mountpoint
(1) I've now done this as you and Hans suggested and it has fixed the problem. So I think that confirms that the Suse10.3 server is making NFSv2 connections by default whereas the Suse9.2 server made NFSv3 connections. I still don't understand why, though. See above
Thanks, I'll try that to at least see if I can fix the specific issue I have with this particular application.
Cheers, Dave
If it works, you can then instruct the server not to accept NFSv1/2 connections, if it suits your needs, of course.
Thanks, Dave
Hope it helps, Rui
-- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Fri, 2007-12-07 at 11:36 +0000, Dave Howorth wrote:
I have a server that's been running fine for some years with Suse 9.2. I've just installed 10.3 and am now getting 'File size limit exceeded' errors.
The access is being made by an application on another box, running 9.2. It's trying to copy a 2.7 GB file from a local disk to a filesystem on the server that it's mounting using NFS. The filesystem is reiserfs and was not changed when I upgraded the OS. Both machines are 64-bit. The application has worked fine for years but now says:
File size limit exceeded
I don't have a file size limit (file size (blocks, -f) unlimited)
Google showed it may be a restriction of NFS V2 though why that is now running is another mystery. rpcinfo and nfsstat shows that server and client are both running both v2 and v3. I haven't been able so far to find out which version is in use for a particular mount. How can I do that?
Does anybody recognize these symptoms?
Thanks, Dave
Hi, For larger files, you can not use the default mount options anymore! You must use nfsvers=3 instead on nfsver=2 (and use tcp instead of udp) HW -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Fri, 2007-12-07 at 15:34 +0100, Hans Witvliet wrote:
For larger files, you can not use the default mount options anymore! You must use nfsvers=3 instead on nfsver=2 (and use tcp instead of udp)
Hi Hans, Thanks for this. I will try it on Monday. But again, *this has been working for years.* I've been copying a file > 2 GB every two weeks for years, successfully, without using this option. It has only now stopped working AFTER I installed 10.3 on the server. I haven't changed the client - where the mount request is made. Something has broken backwards compatibility and I'd like to discover what. BTW, why do I need to use TCP? And if anybody knows, how can I discover whether any specific link is using NFSV2 or NFSV3 and TCP or UDP? Thanks, Dave -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Dec 7, 2007, at 3:49 PM, Dave Howorth wrote:
On Fri, 2007-12-07 at 15:34 +0100, Hans Witvliet wrote:
For larger files, you can not use the default mount options anymore! You must use nfsvers=3 instead on nfsver=2 (and use tcp instead of udp)
The default options since SuSe 9.x have been for TCP and NFSv3 by default. It is still worth it to declare it in /etc/fstab for the sake of clarity.
Hi Hans, Thanks for this. I will try it on Monday. But again, *this has been working for years.* I've been copying a file > 2 GB every two weeks for years, successfully, without using this option. It has only now stopped working AFTER I installed 10.3 on the server. I haven't changed the client - where the mount request is made.
The client is where all the NFS mount options are asked for, so if you haven't changed it, then perhaps that should be the first place to look for the problem. Could you please copy your mount entry from /etc/fstab on the client and /etc/exports on the server and post them in this thread?
Something has broken backwards compatibility and I'd like to discover what.
BTW, why do I need to use TCP?
Its debatable if you really need to use TCP in a non-WAN setting with good hardware. UDP has no flow control and little has been added to the protocol over the past 10 years or so. TCP is quite the opposite. Using either has both advantages and disadvantages, it is generally accepted that TCP is easier and better to use. Should you choose to go with UDP there has been much conversation about not using anything over an 8k rwsize because of problems it causes.
And if anybody knows, how can I discover whether any specific link is using NFSV2 or NFSV3 and TCP or UDP?
On your client if you type `cat /proc/mounts` then you will get back a full listing of your mounts and all the options they are connecting with to your nfs server (including the ones that are defaults that you wouldn't normally see in just /etc/fstab. Typing `mount` will also return how you are connected to the nfs server but with the default connection information hidden and extended options you might have used in /etc/fstab shown. Cheers Todd Systems Administrator --------------------------------------------- Soho VFX - Visual Effects Studio 99 Atlantic Avenue, Suite 303 Toronto, Ontario, M6K 3J8 (416) 516-7863 http://www.sohovfx.com --------------------------------------------- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Mon, 2007-12-10 at 12:38 -0500, M. Todd Smith wrote:
The default options since SuSe 9.x have been for TCP and NFSv3 by default. It is still worth it to declare it in /etc/fstab for the sake of clarity.
I wouldn't put any money on that statement! Regularly we have a system falling back to udp and using NFS-2; Thus trunkating and corrupting the xen-images that are all way larger than 2GB (all of them are between 6 and 20GB) Other nice "feature" is that sometimes portmapper does not come up after a unplanned reboot, causing very long delays. hw -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Dec 10, 2007, at 4:39 PM, Hans Witvliet wrote:
On Mon, 2007-12-10 at 12:38 -0500, M. Todd Smith wrote:
The default options since SuSe 9.x have been for TCP and NFSv3 by default. It is still worth it to declare it in /etc/fstab for the sake of clarity.
I wouldn't put any money on that statement! Regularly we have a system falling back to udp and using NFS-2; Thus trunkating and corrupting the xen-images that are all way larger than 2GB (all of them are between 6 and 20GB)
I wouldn't write something I hadn't checked. Here's the pudding: [root@doozer3 /proc]$ cat /etc/SuSE-release SuSE Linux 9.3 (i586) VERSION = 9.3 To show I'm not forcing NFS v3 or tcp [root@doozer3 /proc]$ cat /etc/fstab /dev/sda3 / reiserfs acl,user_xattr 1 1 /dev/sda1 /boot reiserfs acl,user_xattr 1 2 /dev/sda2 swap swap pri=42 0 0 devpts /dev/pts devpts mode=0620,gid=5 0 0 proc /proc proc defaults 0 0 usbfs /proc/bus/usb usbfs noauto 0 0 sysfs /sys sysfs noauto 0 0 /dev/cdrom /media/cdrom subfs noauto,fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0 /dev/fd0 /media/floppy subfs noauto,fs=floppyfss,procuid,nodev,nosuid,sync 0 0 /dev/sdb1 /data reiserfs acl,user_xattr 1 1 *************:/ifs/data/linux_home /home nfs noexec ,dev,suid,rw,rsize=32768,wsize=32768,timeo=500,retrans=10,retry=60 0 0 *************:/ifs/data/archive /mnt/archive nfs exec,dev,suid,rw,rsize=32768,wsize=32768,timeo=500,retrans=10,retry=60 0 0 *************:/ifs/data/shared /mnt/shared nfs exec,dev,suid,rw,rsize=32768,wsize=32768,timeo=500,retrans=10,retry=60 0 0 *************:/ifs/data/projects /mnt/projects nfs exec,dev,suid,rw,rsize=32768,wsize=32768,timeo=500,retrans=10,retry=60 0 0 Here's what /proc/mounts returns - the default connect settings. [root@doozer3 /proc]$ cat /proc/mounts rootfs / rootfs rw 0 0 initramfsdevs /lib/klibc/dev tmpfs rw 0 0 /dev/sda3 / reiserfs rw 0 0 proc /proc proc rw,nodiratime 0 0 sysfs /sys sysfs rw 0 0 devpts /dev/pts devpts rw 0 0 tmpfs /dev/shm tmpfs rw 0 0 /dev/sda1 /boot reiserfs rw 0 0 /dev/sdb1 /data reiserfs rw 0 0 usbfs /proc/bus/usb usbfs rw 0 0 ***************:/ifs/data/linux_home /home nfs rw ,noexec ,v3,rsize=32768,wsize=32768,hard,tcp,lock,addr=****************0 0 ***************:/ifs/data/archive /mnt/archive nfs rw,v3,rsize=32768,wsize=32768,hard,tcp,lock,addr=****************0 0 ***************:/ifs/data/shared /mnt/shared nfs rw,v3,rsize=32768,wsize=32768,hard,tcp,lock,addr=**************** 0 0 ***************:/ifs/data/projects /mnt/projects nfs rw,v3,rsize=32768,wsize=32768,hard,tcp,lock,addr=i**************** 0 0 /dev/fd0 /media/floppy subfs rw,sync,nosuid,nodev 0 0
Other nice "feature" is that sometimes portmapper does not come up after a unplanned reboot, causing very long delays.
Portmap relies on both the syslog service and the network service to come up before it will, the problem with hard reboots usually lies within those two coming back up in my experience. Systems Administrator --------------------------------------------- Soho VFX - Visual Effects Studio 99 Atlantic Avenue, Suite 303 Toronto, Ontario, M6K 3J8 (416) 516-7863 http://www.sohovfx.com --------------------------------------------- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Todd, Thanks very much for your replies. They help enormously (not yet enough to say SOLVED, sadly) ... M. Todd Smith wrote:
On Dec 7, 2007, at 3:49 PM, Dave Howorth wrote:
On Fri, 2007-12-07 at 15:34 +0100, Hans Witvliet wrote:
For larger files, you can not use the default mount options anymore! You must use nfsvers=3 instead on nfsver=2 (and use tcp instead of udp)
The default options since SuSe 9.x have been for TCP and NFSv3 by default. It is still worth it to declare it in /etc/fstab for the sake of clarity.
I'm glad Hans questioned you in a later mail because I had trouble believing this as well :( But you've already answered the question before I started writing this :) Everything I've read about nfs says that v2 is the default, but I've checked as you described and I'm seeing v3 as you say. Is that a Suse-only thing?
Hi Hans, Thanks for this. I will try it on Monday. But again, *this has been working for years.* I've been copying a file > 2 GB every two weeks for years, successfully, without using this option. It has only now stopped working AFTER I installed 10.3 on the server. I haven't changed the client - where the mount request is made.
The client is where all the NFS mount options are asked for, so if you haven't changed it, then perhaps that should be the first place to look for the problem.
I don't understand this. I'm happy to go along but I don't understand. I'd expect to look for problems in the place that *was* changed? But here goes ...
Could you please copy your mount entry from /etc/fstab on the client and /etc/exports on the server and post them in this thread?
client (suse3) /etc/fstab: suse1:/data /nfs/suse1/data nfs rsize=8192,wsize=8192,intr,bg,noatime,nfsvers=3 0 0 suse1:/home /home nfs rsize=8192,wsize=8192,intr,bg,noatime 0 0 client (suse3) /proc/mounts: suse1:/home /home nfs rw,noatime,v3,rsize=8192,wsize=8192,hard,intr,tcp,lock,addr=suse1 0 0 suse1:/data /nfs/suse1/data nfs rw,noatime,v3,rsize=8192,wsize=8192,hard,intr,tcp,lock,addr=suse1 0 0 server (suse1) /etc/exports: /data @scop_hosts(rw,root_squash,async,no_subtree_check) /data/wwpdb *.lmb.internal(ro,all_squash,async,no_subtree_check) /home @scop_hosts(rw,root_squash,async,no_subtree_check) server (suse1) /etc/netgroup: scop_hosts (other-hosts-snipped) (suse3,,) (other-hosts-snipped)
Something has broken backwards compatibility and I'd like to discover what.
So I can now see more information but I don't know how to interpret it to explain the symptoms. Originally, I didn't have that nfsvers=3 option on the 'data' mount - it was the same as the 'home' mount. And in that conguration I had the 2GB size limit problem. I added the nfsvers=3 option and remounted 'data' and now I don't have the problem. But /proc/mounts seems to show that the two mounts - one old-style and one new-style fstab entry - result in identical mounts. So why would I have the problem in the first place? I can't do another experiment at present, because having got over the problem, there's a job running that will take a few days to finish. I'd like to nail the issue completely though. I don't want it coming back next time the machine is rebooted after I've forgotten everything about it!
BTW, why do I need to use TCP?
Its debatable if you really need to use TCP in a non-WAN setting with good hardware. UDP has no flow control and little has been added to the protocol over the past 10 years or so. TCP is quite the opposite. Using either has both advantages and disadvantages, it is generally accepted that TCP is easier and better to use. Should you choose to go with UDP there has been much conversation about not using anything over an 8k rwsize because of problems it causes.
Thanks - it seems I've been using tcp without realizing :) So I could increase my r/wsize.
And if anybody knows, how can I discover whether any specific link is using NFSV2 or NFSV3 and TCP or UDP?
On your client if you type `cat /proc/mounts` then you will get back a full listing of your mounts and all the options they are connecting with to your nfs server (including the ones that are defaults that you wouldn't normally see in just /etc/fstab.
Excellent! This is what I was missing. Thanks Todd, Dave
Typing `mount` will also return how you are connected to the nfs server but with the default connection information hidden and extended options you might have used in /etc/fstab shown. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Dec 11, 2007, at 5:40 AM, Dave Howorth wrote:
Todd,
Thanks very much for your replies. They help enormously (not yet enough to say SOLVED, sadly) ...
Looks like you are on your way now though :)
M. Todd Smith wrote:
On Dec 7, 2007, at 3:49 PM, Dave Howorth wrote:
On Fri, 2007-12-07 at 15:34 +0100, Hans Witvliet wrote:
For larger files, you can not use the default mount options anymore! You must use nfsvers=3 instead on nfsver=2 (and use tcp instead of udp)
The default options since SuSe 9.x have been for TCP and NFSv3 by default. It is still worth it to declare it in /etc/fstab for the sake of clarity.
Everything I've read about nfs says that v2 is the default, but I've checked as you described and I'm seeing v3 as you say. Is that a Suse-only thing?
Not that I am aware of, I checked the only other machine I have running a 2.4.x kernel (2.4.20 redhat 9 machine). It too defaults to nfsv3 connections on 4 different servers. I haven't seen a machine default to nfsv2 for the past 4 years or so. You can do two things really, get rid of the servers ability to serve up an NFSv2 connection, which I thought might have been happening on our SANS but I setup a small NFS server to check it out and its still defaulting to v3. This procedure is outlined in the NFS FAQ I link below. Or force v3 on all your clients. I would probably force it all on the clients as it is far more clear to see it in many /etc/fstab's then it is on a single /etc/sysconfig file.
The client is where all the NFS mount options are asked for, so if you haven't changed it, then perhaps that should be the first place to look for the problem.
I don't understand this. I'm happy to go along but I don't understand. I'd expect to look for problems in the place that *was* changed? But here goes ...
The client asks the server for whatever options you give it. If the server can comply then it will. Many people don't enforce nfsv3 or tcp by default and thus it can easily be a point of contention. The changed part is not always the problem piece, although I completely agree with your logic :). Its certainly an odd behaviour, reminds me of the days when you had to force 1000/full duplex connections because the autonegotiation never seemed to work properly. I think the FAQ at http://nfs.sourceforge.net/ may help you out a little in the troubleshooting process of NFS. Cheers Todd Systems Administrator --------------------------------------------- Soho VFX - Visual Effects Studio 99 Atlantic Avenue, Suite 303 Toronto, Ontario, M6K 3J8 (416) 516-7863 http://www.sohovfx.com --------------------------------------------- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
M. Todd Smith wrote:
On Dec 11, 2007, at 5:40 AM, Dave Howorth wrote:
Everything I've read about nfs says that v2 is the default, but I've checked as you described and I'm seeing v3 as you say. Is that a Suse-only thing?
Not that I am aware of, I checked the only other machine I have running a 2.4.x kernel (2.4.20 redhat 9 machine). It too defaults to nfsv3 connections on 4 different servers. I haven't seen a machine default to nfsv2 for the past 4 years or so. You can do two things really, get rid of the servers ability to serve up an NFSv2 connection, which I thought might have been happening on our SANS but I setup a small NFS server to check it out and its still defaulting to v3. This procedure is outlined in the NFS FAQ I link below.
Yes, I'd seen that, but when I looked at how to implement that on a Suse system it seems there's no place to configure it. It would mean hacking the /etc/init.d/nfsserver script unless I've missed something.
Or force v3 on all your clients. I would probably force it all on the clients as it is far more clear to see it in many /etc/fstab's then it is on a single /etc/sysconfig file.
Except it's a lot harder to see one missing option in many fstabs than in a single server config file (but since there isn't an appropriate server config file, that's moot :) Thanks again for your help, Dave -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Or force v3 on all your clients. I would probably force it all on the clients as it is far more clear to see it in many /etc/fstab's then it is on a single /etc/sysconfig file.
Except it's a lot harder to see one missing option in many fstabs than in a single server config file (but since there isn't an appropriate server config file, that's moot :)
After some perusing it doesn't seem to be possible to pass that option to a SuSe NFS server. To explain my reason on many /etc/fstab's over a single /etc/ sysconfig. I usually push out new mount entries by scripts so all of them are the same. Moreover if a single client has a problem I am more apt to dissect the contents of that client system than I am to take apart the server which is still servicing everyone other client fine. The problem would be more transparent in that sense. Cheers Todd Systems Administrator --------------------------------------------- Soho VFX - Visual Effects Studio 99 Atlantic Avenue, Suite 303 Toronto, Ontario, M6K 3J8 (416) 516-7863 http://www.sohovfx.com --------------------------------------------- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Wed, 2007-12-12 at 10:16 -0500, M. Todd Smith wrote:
Or force v3 on all your clients. I would probably force it all on the clients as it is far more clear to see it in many /etc/fstab's then it is on a single /etc/sysconfig file.
Except it's a lot harder to see one missing option in many fstabs than in a single server config file (but since there isn't an appropriate server config file, that's moot :)
After some perusing it doesn't seem to be possible to pass that option to a SuSe NFS server.
To explain my reason on many /etc/fstab's over a single /etc/ sysconfig. I usually push out new mount entries by scripts so all of them are the same. Moreover if a single client has a problem I am more apt to dissect the contents of that client system than I am to take apart the server which is still servicing everyone other client fine. The problem would be more transparent in that sense.
Cheers Todd Systems Administrator --------------------------------------------- Soho VFX - Visual Effects Studio 99 Atlantic Avenue, Suite 303 Toronto, Ontario, M6K 3J8 (416) 516-7863 http://www.sohovfx.com ---------------------------------------------
Have you tied using autofs and ldap to create your mount points? -- Joseph Loo jloo@acm.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Dec 12, 2007, at 8:28 PM, Joseph Loo wrote
Have you tied using autofs and ldap to create your mount points? --
I admin a mixed mac/linux environment, its been a couple years since I tried to use autofs and ldap to automount however it has always been something that we've wanted to do. Now with OS X 10.5 being fully open directory compliant things should slide in this direction much easier than they use to. Unfortunately this is on a long list of things to do, and only one systems guy to do them :) Cheers Todd Systems Administrator --------------------------------------------- Soho VFX - Visual Effects Studio 99 Atlantic Avenue, Suite 303 Toronto, Ontario, M6K 3J8 (416) 516-7863 http://www.sohovfx.com --------------------------------------------- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Dave Howorth wrote:
On Fri, 2007-12-07 at 15:34 +0100, Hans Witvliet wrote:
For larger files, you can not use the default mount options anymore! You must use nfsvers=3 instead on nfsver=2 (and use tcp instead of udp)
Hi Hans, Thanks for this. I will try it on Monday. But again, *this has been working for years.* I've been copying a file > 2 GB every two weeks for years, successfully, without using this option. It has only now stopped working AFTER I installed 10.3 on the server. I haven't changed the client - where the mount request is made.
Something has broken backwards compatibility and I'd like to discover what.
The name of the nfs clients and server packages were renamed in 10.3 -- that's the first different (that shouldn't make a difference). The next thing -- as near as I can tell, 10.3 defaults to NFS4. At least this was what I found out when I ran into the same problems in 10.3. I "upgraded" the packages to the working nfs packages in 10.2 and things went back to normal and started working. Also -- in trying to upgrade, somehow I picked the wrong NFS-server somewhere for one of my servers -- it started serving with a user-space NFS-server instead of the kernel-NFS server. The user space NFS-server I had been using, also seemed to have a 2GB limit as well as being limited to NFSv2. Am now running with NFSv3 and thinks seem to work -- I did have to "backgrade" the needed NFS-related files to suse10.2, though, to make it work. NFSv4 also seems to need another daemon or two -- some sort of id mapper, at least. Might be useful in some environments, but until I complete upgrades on my machines, I am sticking with SuSE10.2's NFS images as they just "worked" for me. Good luck, Linda -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Linda Walsh wrote:
Dave Howorth wrote:
On Fri, 2007-12-07 at 15:34 +0100, Hans Witvliet wrote:
For larger files, you can not use the default mount options anymore! You must use nfsvers=3 instead on nfsver=2 (and use tcp instead of udp)
Hi Hans, Thanks for this. I will try it on Monday. But again, *this has been working for years.* I've been copying a file > 2 GB every two weeks for years, successfully, without using this option. It has only now stopped working AFTER I installed 10.3 on the server. I haven't changed the client - where the mount request is made.
Something has broken backwards compatibility and I'd like to discover what.
The name of the nfs clients and server packages were renamed in 10.3 -- that's the first different (that shouldn't make a difference). The next thing -- as near as I can tell, 10.3 defaults to NFS4.
I don't have v4 running, but I do appear to have some v2 mounts. Now I know about /proc/mounts, I'll see if I can find a client machine that admits to owning the traffic: suse1:~# nfsstat Server rpc stats: calls badcalls badauth badclnt xdrcall 27875534 1 1 0 0 Server nfs v2: null getattr setattr root lookup readlink 1 0% 1418162 17% 58016 0% 0 0% 1987379 23% 479859 5% read wrcache write create remove rename 3509146 42% 0 0% 493881 5% 58032 0% 27 0% 6 0% link symlink mkdir rmdir readdir fsstat 0 0% 290496 3% 14 0% 5 0% 2308 0% 5 0% Server nfs v3: null getattr setattr lookup access readlink 20 0% 5615777 28% 83718 0% 6024169 30% 1843591 9% 2735877 13% read write create mkdir symlink mknod 2390416 12% 773094 3% 16955 0% 1427 0% 25 0% 0 0% remove rmdir rename link readdir readdirplus 1638 0% 336 0% 16125 0% 77 0% 2232 0% 34855 0% fsstat fsinfo pathconf commit 1180 0% 29 0% 0 0% 34800 0% I think I chose not to switch it on when I set up the NFS server.
At least this was what I found out when I ran into the same problems in 10.3. I "upgraded" the packages to the working nfs packages in 10.2 and things went back to normal and started working.
I'd seen your problem in the archive but I wasn't sure how similar the symptoms are and I didn't want to start a new installation by putting non-standard parts in the engine. If it's configuration, I hope to find my mistake; if it's a bug, I hope we can identify it so it can be fixed. <snip>
NFSv4 also seems to need another daemon or two -- some sort of id mapper, at least. Might be useful in some environments, but until I complete upgrades on my machines, I am sticking with SuSE10.2's NFS images as they just "worked" for me.
I'd agree that there doesn't seem any point in my environment in moving to V4.
Good luck, Linda
Thanks, Dave -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Friday 2007-12-07 at 11:36 -0000, Dave Howorth wrote:
Google showed it may be a restriction of NFS V2 though why that is now running is another mystery. rpcinfo and nfsstat shows that server and client are both running both v2 and v3. I haven't been able so far to find out which version is in use for a particular mount. How can I do that?
Just by chance, I found this. I think 'cat /proc/fs/nfsfs/servers' or '...volumes' will do: NV SERVER PORT USE HOSTNAME v3 c0a8010c 801 1 nimrodel.valinor NV SERVER PORT DEV FSID v3 c0a8010c 801 0:19 fefbab737c720323 HTH - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) iD8DBQFHbsTWtTMYHG2NR9URAjOCAJ9/gpoWxt8NdyU6U5wjl5LGCTwiqgCfR2MI H+RJ3iL+Pkjlf0CRe7nuKbc= =eAUw -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (9)
-
Andreas Jaeger -
Carlos E. R. -
Dave Howorth -
Dave Howorth -
Hans Witvliet -
Joseph Loo -
Linda Walsh -
M. Todd Smith -
Rui Santos