[OpenIndiana-discuss] Cyrus over NFS on ZFS storage

[Gabriele Bulfon]

hi, actually I could solve the problem by moving to NFS4, but got a different problem....
I set up every mapid correctly, so I could get correct root access over NFS4.
So I mount from the client with vers=4, go to the mount point, create a directory, and it's
correctly root:root.
Then I find that some pre-existant directory shows the nobody user, but just some!
For example, files originally with cyrus:mail are still cyrus:mail (both don't exist in the NFS storage).
File originally with vscan:vscan are now nobody:vscan!
This does not happen with NFS3.......
Finally, I try to check if I actually have complete root access, by creating a new directory xyz, check
that it's root:root (and it is), than chmod cyrus:mail xyz ...and I get a permission denied!!!
So I'm not root! Why????
----------------------------------------------------------------------------------
Da: Gabriele Bulfon
A: openindiana-discuss at openindiana.org
Data: 26 luglio 2011 12.00.47 CEST
Oggetto: [OpenIndiana-discuss] Cyrus over NFS on ZFS storage
Hi,
I moved a cyrus server data files onto a OI ZFS storage, shared as NFS, accessed with options
"vers=3,rsize=32768,wsize=32768,intr,noatime" from a Solaris 10 (vers 3 seemed the only way to easily access the server as root and get original permissions).
It works, but once usage goes up, I get many locking errors like:
IOERROR: lock_shared /iserver/var/imap/mailboxes.db: No record locks available
I changed the storage /etc/default/nfs parameters as follow:
NFSD_SERVERS=256
LOCKD_LISTEN_BACKLOG=256
LOCKD_SERVERS=1024
and refreshed both nfsd and lockd through svcadm refresh.
How can I be sure that new parameters are taken without rebooting the storage?
How can I know the number of locks the machine is trying to achieve?
Any help would be really appreciated ;)
Gabriele.
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