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Hello -
I have several web applications in production that utilize NFS mounts to share resources (usually static asset files) among web heads. In the event that an NFS mount becomes unavailable, Apache will hang requesting files that cannot be accessed...
Started by benr75 on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Apache would serve its....
It wouldn't be too hard to setup a cron job that synced the NFS mount to the local file system every few minutes.
I would not directly serve from the NFS mount, but instead from your local filesystem.
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I am exporting my /opt/target directory via NFS but I would like the nfs clients to be able to mount it as /target. i.e. I would like showmount -e to show /target not /opt/target. Can that be done?
Started by Jon Drnek on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at serverfault):
Symlinking is probably best, and it'll save you from moving the export....
NFS supports this and I don't know of anyI'm pretty sure NFS does not allow for aliases.
Was to symlink /opt/target to /target and then export /target.
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I have an NFS server that several clients mount. I am using the following in my /etc/exports on the server:
/content *(rw,no_root_squash)
and on the clients in my /etc/fstab I have:
content.prd.domain.tld:/content /content nfs rw,hard,intr 0 0
If the ...
Started by z0mbix on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
Another is to use the automounter (autofs), and mount them on demand, although I've always suffered reliability....
This will cause the NFS shares to be mountedThe cron job solution is one way.
Recommend looking into AutoFS and the automount daemon.
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Server A used to be a NFS server. Server B was mounting an export of that. Everything was fine. Then A died. Just switched off. Gone. Vanished.
However that folder is still mounted on B. I obviously can't cd into it or anything. However umount /mnt/myfolder...
Started by Rory McCann on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at serverfault):
Your....
A useful trick is to set up another server mounting the same export, give it the same IP address as the old server.
Mnt/myfolder
Will sort of fix the problem:
-f Force unmount (in case of an unreachable NFS system" to work.
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I have a small LAN that has a couple of Linux boxes (Ubuntu 9.10) with NFS shares on them. The boxes are networked with a consumer grade Netgear router (model WGR614V9) and using wired connections.
When I first set up the NFS shares, I noticed that performance...
Started by dmcer on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at serverfault):
Http://nfs.sourceforge.net....
It's pretty standard for scp to be quicker than NFS; there's a lot more overhead and things not looked it over.
Udp can give pretty bad results.
About the mount options : use tcp.
To do 50MB/s NFS write.
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How can I achieve low latency for NFS exports in order to e.g. have developers work nicely in Eclipse/Visual Studio with their workspaces mounted over NFS?
Started by Robert Munteanu on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at serverfault):
Hard disks are always going asynchronous write" Check your NFS client for read-ahead and delayed write, both of those features will help Obviously keep network latency low - GBit....
Wait for filesystem caching, or don't do compiles over NFS.
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I have a server that has 7 large disks that are each shared out via NFS to our webserver.
My question is: Would it be more efficient if I shared the parent directory so that there was only a single NFS mount point on the webserver, or would it make any...
Started by Brent on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
If it's unavailable, you'll have to wait for 7 ....
As for network speed, AFAICT (as far as I can tell .
There's no speed increase...unless the NFS server isn't available at mount-timeThere's no redundancy to be had from NFS itself.
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We several WebSphere application servers logging to a central NFS mount. Both the app servers and the NFS server are running in VMWare, the app servers are RHEL 5, and the NFS server is Ubuntu 8.04. All servers are connected via gigabit ethernet, at a...
Started by ibuys on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
Maybe something in the way it writes data....
Amounts of data from your various servers to the NFS mount, do those files exhibit corruption? If not this could be a websphere specific issue or an interaction between websphere and NFS.
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I realize that since NFS is not block-level, LVM can't be used directly.
However: is there a way to combine multiple NFS exports (from, say, 3 servers) into one mount point on a different server?
Specifically, I'd like to be able to do this on RHEL 4 ...
Started by warren on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at serverfault):
Also, re-exporting NFS mounts (and even NFS mounting filesystems that have filesystems mounted for this job, you can also consider Lustre maybe (I have not used that one yet though) GlusterFS is NFS....
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I'm repeatedly getting 403 Permission Denied errors on trying to serve images from apache running on Machine A. The images are in a directory which is an NFS share from Machine B. The entry on Machine B /etc/exports reads like this : /dir/ xxx.xxx.xxx...
Started by s1d on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at serverfault):
For security 4 most targeted daemons do not interact with user data and are not affected by NFS-mounted homeNFS always causes fun things....
Check that Apache is permitted to serve files from where your NFS mount point exists.
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