NFS Problem After 7.2
I just updated my fileserver to version 7.2 and got some NFS problems after that. In /etc/exports I have the following line
/path hostname(ro,insecure)
Now that host can no longer mount that share. I get mount.nfs: access denied by server while mounting x
Also when I do restart of the NFS server I get following in the logs Dec 30 21:59:33 files systemd[1]: Starting NFS server and services… Dec 30 21:59:33 files nfsdcltrack[31076]: sqlite_query_reclaiming:
unable to prepare select statement: no such column: has_session
Dec 30 21:59:33 files polkitd[28879]: Unregistered Authentication Agent for unix-process:31032:12640806 (system bus name :1.635, object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_GB.UTF-8)
(disconnected from bus)
Dec 30 21:59:34 files nfsdcltrack[31412]: sqlite_insert_client: insert statement prepare failed: table clients has 2 columns but 3 values were supplied
What to do?
9 thoughts on - NFS Problem After 7.2
Shot in the dark: have you tried “exportfs -r” yet?
Tried it, it just returned and nothing in the logs.
Yes, but is the client still unable to mount the filesystem? I wouldn’t expect any output or log entries from the command itself. It just rebuilds the binary export database from /etc/exports.
Looks like upstream is working on it [1]. According to the BZ, the solution for now is to downgrade nfs-utils [2].
Brandon Vincent
[1] https://access.redhat.com/solutions/2065873
[2] https://bugzilla.redhat.com//show_bug.cgi?id85097
Thank you for spotting that one!
Don’t know it’s because I’m still tired from yesterday, but don’t seem to be able to downgrade. The command ‘yum downgrade nfs-utils’ just returns nothing to do. I’ve searched CentOS.org to find the previous package nfs-utils-1.3.0-0.8.el7.x86_64.rpm to manually download and install, but haven’t found it. What is actually the best way to do a downgrade?
http://CentOS.s.uw.edu/CentOS/7.1.1503/os/x86_64/Packages/nfs-utils-1.3.0-0.8.el7.x86_64.rpm
“yum downgrade” will typically take you back to the version included with a release.
I thought that old packages were available on http://vault.CentOS.org/, but after a brief look I only see source packages. Does anyone know where old binaries are kept, if anywhere?
At least this mirror has all the 7.1.1503 files available:
http://mirror.netcologne.de/CentOS/7.1.1503/os/x86_64/Packages/nfs-utils-1.3.0-0.8.el7.x86_64.rpm
Regards,
Dennis
Am 01.01.2016 um 17:31 schrieb Dennis Jacobfeuerborn:
yum –enablerepo
Thanks.
I already did a manual download and downgrade and happily enough that solved the problem. No more errors in the log and now all nfs clients can mount their shares :)