How does NFS read cache work on Debian?

Posted by Ztyx on Server Fault See other posts from Server Fault or by Ztyx
Published on 2010-03-30T10:30:28Z Indexed on 2010/03/30 10:33 UTC
Read the original article Hit count: 401

Filed under:

distributed-filesystems

|

nfs

|

nfs-client

|

nfs-perfomance

I am planning to use NFS to serve out many small files. They will be read very often so client side caching is crucial. Does NFS handle this? Is there a way to increase the client side caching in some way?

...or should I look at another solution? Syncing using rsync or unison periodically is not an option since the files are modified on the client side from time to time.

© Server Fault or respective owner

Related posts about distributed-filesystems

How to install ceph on EC2 Amazon Linux AMI

as seen on Server Fault - Search for 'Server Fault'
I want to test Ceph (a distributed network storage and file system) on some EC2 hosts which is derived from Amazon Linux AMI (amzn-ami-2011.09.2.x86_64-ebs). The kernel version is 3.2 and btrfs is enabled. But kernel config options related to Ceph (CONFIG_CEPH_FS and CONFIG_BLK_DEV_RBD) seems to… >>> More
Experience with MooseFS?

as seen on Server Fault - Search for 'Server Fault'
Anyone have any experience using MooseFS? I want an easy distributed storage platform to store static data archive of about 10 TB and serve it to 20-40 nodes. Also I want to be able to add storage as the archive grows without having to rebuild the filesystem. I don't care if it's a bit slow. I… >>> More
GlusterFS vs Ceph, which is better for production use for the moment?

as seen on Server Fault - Search for 'Server Fault'
I am evaluating GlusterFS and Ceph, seems Gluster is FUSE based which means it may be not as fast as Ceph. But looks like Gluster got a very friendly control panel and is ease to use. Ceph was merged into linux kernel a few days ago and this indicates that it has much more potential energy and may… >>> More
How stable is POHMELFS?

as seen on Server Fault - Search for 'Server Fault'
I am currently looking into POHMELFS because of its ability to scale reads. Does anyone have it in production and could tell me how stable it is? >>> More
gpfs: adding a new nsd server to a cluster

as seen on Server Fault - Search for 'Server Fault'
I have a gpfs cluster composed by 10 linux nodes, managed by a primary server A, which also act as nsd server for a first stack of disks. I attached a new jbod to one of the nodes (call it node B), which I would like to become a nsd server for this new stack of disks, but still be included in the… >>> More

Related posts about nfs

12.10 update breaks NFS mount

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I've just upgraded to the latest 12.10 beta. Rebooted twice. The problem is with the NFS folders not mounting, here's a verbose log. # mount -v myserver:/nfs_shared/tools /tools/ mount: no type was given - I'll assume nfs because of the colon mount.nfs: timeout set for Mon Oct 1 11:42:28 2012 mount… >>> More
NFS to NFS mount

as seen on Server Fault - Search for 'Server Fault'
I have a machine that I need to bridge NFS files to. Can I mount an NFS directory on machine2 from machine1 and then mount the mounted NFS directory on machine2 on machine3 via NFS? Do you see any problems with that? I am basically bridging some subnet domains this way, in a certain fashion. My development… >>> More
CentOS 5.4 NFS v4 client file permissions differ from original files & NFS Share file contents

as seen on Server Fault - Search for 'Server Fault'
Having a strange problem with NFS share and file permissions on the 1 out of the 2 NFS clients, web1 has file permissions issues but web2 is fine. web1 and web2 are load balanced web servers. So questions are: how do I ensure NFS share file contents retain the same permissions for user/group as… >>> More
Slow NFS and GFS2 performance

as seen on Server Fault - Search for 'Server Fault'
Recently I've designed and configured a 4 node cluster for a webapp that does lots of file handling. The cluster have been broken down into 2 main roles, webserver and storage. Each role is replicated to a second server using drbd in active/passive mode. The webserver does a NFS mount of the data… >>> More
NFS (with Kerberos) mount failing due to "Server not found in Kerberos database" error

as seen on Server Fault - Search for 'Server Fault'
When running: `sudo mount -t nfs4 -o sec=krb5 sol.domain.com:/ /mnt` I get this error on the client: mount.nfs4: access denied by server while mounting sol.domain.com:/ And on the server syslogs UNKNOWN_SERVER: authtime 0, nfs/[email protected] for nfs/ip-#-#-#-#.ec2.internal@SOL… >>> More