[OpenAFS] *Really* slow "vos listvol"

Derrick Brashear shadow@gmail.com
Thu, 21 Oct 2010 15:55:08 -0400

On Thu, Oct 21, 2010 at 3:49 PM, Garrett Wollman <wollman@csail.mit.edu> wr=
> I have one server where "vos listvol -format" sometimes
> (unpredictably) takes an inordinate amount of time. =A0I measured 18
> minutes yesterday; today it's been anywhere from 15 seconds to 5
> minutes. =A0Looking at a network trace for one that took about five
> minutes, I see the list-volumes RPC, then keepalive ACKs every 30
> seconds, and then finally the first packet of the reply four minutes
> and change later. =A0The server has a reasonable load on it, and the
> partition in question hasn't been touched today. =A0We're running the
> Debian "lenny" packaged OpenAFS 1.4.7 server, and "rxdebug -port 7005"
> shows that I'm the only client talking to the volserver.

pretty sure a bug was fixed in 1.4.8 that caused V_PEEK to be used
instead of creating a ton of fssync transactions.