From: "J. Bruce Fields" <bfields@fieldses.org>
To: Bertrand Jacquin <bjacquin@exosec.fr>
Cc: linux-nfs@vger.kernel.org
Subject: Re: I/O Wait on exportfs
Date: Tue, 17 Jan 2012 10:09:01 -0500 [thread overview]
Message-ID: <20120117150901.GA12274@fieldses.org> (raw)
In-Reply-To: <20120117142945.GA19990@lady-voodoo.exosec.local>
On Tue, Jan 17, 2012 at 03:29:45PM +0100, Bertrand Jacquin wrote:
> For a specific case I have /etc/exports with 1281 entries as I need
> mount --bind to be exported to NFS Clients too.
Could you explain what you mean by that?
> Since I have ~1100 entries, reexporting /etc/exports have some bad
> effects to connected clients, load rise to ~500 for 4/5 minutes, this is
> always reproducible.
>
> This was using 'exportfs -ra'. I did try with 'exportfs
> 192.168.0.1:/srv/mail/1234' to avoid reexport every directories, and
> the sync process but the result is the same.
Does a -t option (see rpc.mountd(8)) help?
> /etc/exports options look like :
>
> /srv/mail 192.168.0.0/24(rw,async,no_wdelay,secure,no_root_squash,insecure_locks,no_subtree_check,nohide,crossmnt)
> /srv/mail/1234 192.168.0.0/24(rw,async,no_wdelay,no_root_squash,insecure_locks,no_subtree_check,nohide,crossmnt)
Why do you need to export both?
--b.
>
> NFS is mounted like this on client :
>
> 192.168.0.1:/srv/mail on /var/mail type nfs (rw,nosuid,sync,remount,noatime,nodiratime,nfsvers=3,rsize=8192,wsize=8192,hard,intr,proto=udp,nolock,actimeo=3)
>
> Server versions:
> Kernel: 2.6.32-bpo.5-amd64 (debian)
> nfs-utils: 1.1.2
>
> Client versions:
> Kernel: 2.6.26-2-amd64 (debian)
> nfs-utils: 1.1.2
>
> Am I in a huge case not really intended or a configuration mistake ?
>
> Thanks,
> Bertrand
>
> --
> Bertrand Jacquin, EXOSEC (http://www.exosec.fr/)
> ZAC des Metz - 3 Rue du petit robinson - 78350 JOUY EN JOSAS
> Tel: +33 1 30 67 60 65 - Fax: +33 1 75 43 40 70
> GSM: +33 6 71 01 70 30 - mailto:bjacquin@exosec.fr
> --
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next prev parent reply other threads:[~2012-01-17 15:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-17 14:29 I/O Wait on exportfs Bertrand Jacquin
2012-01-17 15:09 ` J. Bruce Fields [this message]
2012-01-17 15:43 ` Bertrand Jacquin
2012-01-17 16:40 ` J. Bruce Fields
2012-01-17 16:53 ` Bertrand Jacquin
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