Date: Mon, 13 May 2002 18:32:10 +0200 From: "Karl M. Joch" <k.joch@kmjeuro.com> To: stable@freebsd.org Subject: 4.5 and mpd "no buffer space available on high load" ?? Message-ID: <3CDFEA8A.4070809@kmjeuro.com>
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Hi,
i have a fine working configuration at one customer:
INET
|--------------------------------------------------------|
| |
| |
| |
------- ----------
BOX one
BOX two
ADSL connection with mpd Leased Line connected
IPSec Connection |===============================|IPSEC Connection
Squid Squid
ipfw ipfw
Samba Samba
Wins Server (Samba)
Cups Cups
ppp dialin server (for staff) ppp dialin server
everything works great including wins browsing, printing via cups on
every location.........
there is a job running on box1 and box 2 every nigth sending out a ~20
MB file to the other location via nfs over the ipsec connection. the
jobs are planed in an way that first a sends to b and when this is
finished b sends to a. connection of box 1 is a 512/64 adsl in austria
and box 2 has a 512kb in germany.
box 2 can send the file just fine, but:
->> when box 1 sends the file via cp command to box 2 (1 mounts 2 via
nfs) after it is created i immedialy get "no bufferspace available" on
every action box 1 does. the strange thing is, when letting the same
file being picked up by box 2 (box2 mounting box1 via nfs and running
the same cp command) it works just great.
i searched all of the archives, tried different sysctl.conf settings but
get always the same result. it looks like that if box 2 picks up the
file, mpd (or the system) recognices that the speed of gif0 (ipsec) is
limited by ng0 (mpd). but when box 1 sends the file it looks like that
something happens to fast and gif0 or ng0 is overrunning.
is there an idea how to solve that problem?
--
Best regards / Mit freundlichen Gruessen,
Karl M. Joch
http://www.freebsd.at - Das Power Betriebssystem
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