From: Steve Dickson <SteveD@redhat.com>
To: Joshua Hoblitt <jhoblitt@ifa.hawaii.edu>
Cc: nfs@lists.sourceforge.net
Subject: Re: NFS client request failure statistics?
Date: Sat, 02 Jun 2007 06:21:46 -0400 [thread overview]
Message-ID: <466144BA.8070500@RedHat.com> (raw)
In-Reply-To: <20070602003340.GA5482@ifa.hawaii.edu>
Joshua Hoblitt wrote:
> Hello,
>
> I was wondering if there is some existing means (systemtap, etc.) of
> getting a count of NFS client requests that have "failed" after
> exceeding the maximum number of retransmissions?
You can look in systemtap-0.5.13-1.fc6.rpm but I don't think there
are any script that do that...
> If there is no means of getting at this information, I feel that it would be worth adding.
scripts are always welcomed! ;-)
> It should be a useful stat to have in addition to the retrans count when
> tuning the timeo/retrans values.
Also take a look at the NFS/RPC metrics in /proc/self/mounts. They
might have something similar to what your looking for..
>
> I've spent a small amount of time poking around in the sources to see
> how difficult it would be export this information to userspace. It
> appears that this would be non-trivial to do as it seems that the NFS
> client code itself doesn't keep a count of failed requests and the
> procfs interface (/proc/net/rpc/nfs) is auto-generated by the sunrpc
> layer. Is my analysis correct?
Again, I would suggest you look at the /proc/self/mounts interface.
steved.
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next prev parent reply other threads:[~2007-06-02 10:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-02 0:33 NFS client request failure statistics? Joshua Hoblitt
2007-06-02 10:21 ` Steve Dickson [this message]
2007-06-04 15:00 ` Chuck Lever
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