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List:       amanda-users
Subject:    Re: client timeout issue
From:       Darin Perusich <Darin.Perusich () cognigencorp ! com>
Date:       2010-05-05 18:19:35
Message-ID: 4BE1B6B7.4010609 () cognigencorp ! com
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Brian,

I've found that on systems with alot of ZFS file systems I needed to
increase the {e,d,c}timeout values. Below are the values I have set and
I'm backing up some 150+ ZFS filesystems of varying sizes from a single
server, dumps are a mixture of suntar and zfs-sendrecv.

etimeout 1600
dtimeout 1800
ctimeout 500

On 05/05/2010 02:00 PM, Brian Cuttler wrote:
> 
> Dustin,
> Dan,
> 
> I wondered about dtimout, but we have a very similar issue
> on another system and I tried that. 
> 
> In both cases the DLE with the problem is the largest, no
> not the largest - the most active ZFS mountpoint on the box.
> The other DLEs have no issues, not even intermittently and
> raising the dtimeout limit for the other box just extended
> the time to failure, it didn't aleviate the issue.
> 
> Dan - I'm starting to think we have some ZFS issue on both
> dorldom1z1 and on cascade, but I don't know if the following
> error messages contain anything you can sink your teeth into.
> 
> Interestingly we ran great on dorldom1z1 for a couple of weeks
> after we rebooted it (the zone, not the whole box).
> 
> I'm not yet proposing we reboot cascade (Dustin - its not in
> a non-global zone, cascade has no zones, or perhaps one says
> that it has only the global-zone).
> 
> 						Brian
> 
> On Wed, May 05, 2010 at 10:47:49AM -0500, Dustin J. Mitchell wrote:
>> What is the error?  I suspect this:
>>
>> 1273071472.718696: dumper: security_seterror(handle=8074f08,
>> driver=fef09394 (BSD) error=timeout waiting for REP)
>>
>> which likely means that you're exceeding the dtimeout for that DLE for
>> whatever reason.  Try increasing that?
>>
>> Dustin
>>
>> -- 
>> Open Source Storage Engineer
>> http://www.zmanda.com
> ---
>    Brian R Cuttler                 brian.cuttler@wadsworth.org
>    Computer Systems Support        (v) 518 486-1697
>    Wadsworth Center                (f) 518 473-6384
>    NYS Department of Health        Help Desk 518 473-0773
> 
> 
> 
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-- 
Darin Perusich
Unix Systems Administrator
Cognigen Corporation
395 Youngs Rd.
Williamsville, NY 14221
Phone: 716-633-3463
Email: darinper@cognigencorp.com
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