[volunteergrid2-l] [ej3fw] connection timeouts

[Brad Rupp]

I vote yes as it has seemed to have a positive effect.

Brad

On 3/26/2012 9:01 PM, Jody Harris wrote:
> Okay, "vote" time:
>
> Are we going to add the timeout setting to the recommended configuration?
> Yes?
> No?
>
> j
> ----
> Ph. 575-208-4567
> - Think carefully.
>
>
>
> On Mon, Mar 26, 2012 at 8:55 PM, Shawn Willden <shawn at willden.org
> <mailto:shawn at willden.org>> wrote:
>
>     FYI, I've been uploading all day with no problems.  I'm not getting
>     the high data rates (~300 KBps) that I got last year when the grid
>     was smaller, but they're still quite reasonable (~100 KBps) and I
>     think they're probably a result of the greater geographic diversity
>     we've achieved -- which is a good tradeoff!
>
>
>     On Mon, Mar 26, 2012 at 10:23 PM, Steve Dodson
>     <steve.dodson at gmail.com <mailto:steve.dodson at gmail.com>> wrote:
>
>         Thanks Brian for looking into this!  The timeout config has been
>         added to both rhp99 and hiro
>
>
>         On Mon, Mar 26, 2012 at 9:00 AM, Iantcho Vassilev
>         <ianchov at gmail.com <mailto:ianchov at gmail.com>> wrote:
>
>             timeout.keepalive=120 added
>
>
>             Great work :)
>
>             Iantcho
>
>
>             On Mon, Mar 26, 2012 at 17:28, Shawn Willden
>             <shawn at willden.org <mailto:shawn at willden.org>> wrote:
>
>                 Great work, Brian!
>
>                 I've added the keepalive to my configuration.  I'll
>                 watch it for a bit to see if the behavior looks good.
>
>
>                 On Sun, Mar 25, 2012 at 11:40 PM, Brian Warner
>                 <warner at lothar.com <mailto:warner at lothar.com>> wrote:
>
>
>                     I did some brief digging this afternoon, uploading
>                     small files and
>                     watching with a packet sniffer. I was connected to
>                     15 out of 17 servers
>                     (all but ianchov's [aty4r] and slush-backup's [2na4j]).
>
>                     One thing I observed was that my connection to
>                     stercor's server (ej3fw)
>                     was dropping and reconnecting about once every 16
>                     minutes. I noticed
>                     this by looking at the "Since" column on the welcome
>                     page's server list:
>                     it shows a timestamp of a few seconds after node
>                     reboot for most
>                     servers, but that one server showed a fairly recent
>                     timestamp, changing
>                     every once in a while.
>
>                     I think I figured it out, and have a workaround (as
>                     well as notes on
>                     tools to build to help diagnose the issue more
>                     easily). I'll write a
>                     longer letter to the tahoe-dev list with the
>                     details, so everyone can
>                     see them. For VG2's purposes, my advice is to do at
>                     least one of:
>
>                       1: add [node]timeout.keepalive=120 to all client's
>                     tahoe.cfg
>                       2: have stercor add timeout.keepalive=120 to the
>                     server's tahoe.cfg
>                       3: have stercor reconfigure the NAT/router box to
>                     increase the timeout
>                         for "idle" TCP connections to at least 10
>                     minutes (it currently
>                         might be set to more like 5 minutes)
>
>                     I this this might explain a few problems, but I've
>                     certainly seen others
>                     that this doesn't account for. I'll keep digging.
>
>                     cheers,
>                       -Brian
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>
>
>                 --
>                 Shawn
>
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>
>         --
>         soli Deo gloria,
>
>         Steve Dodson
>
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>     --
>     Shawn
>
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