On 29/12/2011 14:25, Daniel Bird wrote:
Hi All, I've a quick question I'm hoping someone can help out on; One of our NFS servers has an intermittent hard lock problem under high load. This is a CentOS 5.7 box. It's due for replacement sometime next year. However...
The issue is when this box dies the boxes that mount the NFS exports have trouble with the mount and some processes time out casing the system mounting the file system to become unresponsive also. Of course un-monuting the file system with -l fixes it.
This is an example of our current mount options in fstab
hostname:/share1/ /mountpoint nfs rw,intr,soft,bg 0 0
The question is, what (other) options should we be using to allow the mounting server to ignore/fail/timeout the mount, or at least continue normal processing, when the NFS server packs up?
Ahhh, I should read the man pages more carefully!!
Just found this
retry=n The number of minutes to retry an NFS mount operation in the foreground or background before giving up. The default value for forground mounts is 2 minutes. The default value for background mounts is 10000 minutes, which is roughly one week.
So retry=2 would give the same behavior on background mounts as foreground mounts I reckon.
FYI we can't move to NFS4 since we've some old boxes running Solaris 8 mounting this filesystem also, which cannot be upgraded Solaris 10 to support v4.
All the best
Dan
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