RE: nf_conntrack: table full, dropping packet.

I haven't used fedora much recently. Looks it's compiled into the kernel instead of as a module with fedora, so I think you would have to do a custom kernel to disable the connection tracking. (or switch distros)

> -----Original Message-----
> From: Hank A. Paulson [mailto:hap#spamproof.nospammail.net]
> Sent: Thursday, September 03, 2009 2:15 PM
> To: 'HAproxy Mailing Lists'
> Subject: Re: nf_conntrack: table full, dropping packet.
>
> # lsmod
> Module Size Used by
> xen_netfront 19808 0
> pcspkr 2848 0
> xen_blkfront 12404 2
>
> # cat /proc/net/nf_conntrack | wc -l
> 50916
>
> # service iptables stop
> (it was never started)
>
> # cat /proc/net/nf_conntrack | wc -l
> 65358
>
> This is Fedora, sorry, not CentOS.
>
> the only other thing running is keepalived to manage the ip address for
> haproxy.
>
> On 9/3/09 10:16 AM, John Lauro wrote:
> > service iptables stop
> > should take care of it in Centos.
> >
> >
> > Although your lsmod doesn't make sense. It should be showing
> ip_conntrack
> > and ip_tables and iptable_filter with a standard Centos and iptables.
> Even
> > dm_multipath and others that you are not interested in would be
> expected...
> >
> >
> >
> >> -----Original Message-----
> >> From: Hank A. Paulson [mailto:hap#spamproof.nospammail.net]
> >> Sent: Thursday, September 03, 2009 1:02 PM
> >> To: HAproxy Mailing Lists
> >> Subject: nf_conntrack: table full, dropping packet.
> >>
> >> Does anyone know how to get rid of/turn off/kill/remove/exorcise
> >> netfilter
> >> and/or conntrack?
> >> I don't use iptables and it seems to cause a lot of overhead.
> >>
> >> Does it require a custom compiled kernel?
> >> I am using CentOS and Fedora standard precompiled kernels right now.
> >>
> >> Thank you for any help in this frustrating matter.
> >>
> >> # lsmod | grep -i ip
> >> ipv6 290320 20
> >>
> >> sysctl -a | grep -i netfilter
> >> net.netfilter.nf_conntrack_generic_timeout = 12
> >> net.netfilter.nf_conntrack_tcp_timeout_syn_sent = 12
> >> net.netfilter.nf_conntrack_tcp_timeout_syn_recv = 12
> >> net.netfilter.nf_conntrack_tcp_timeout_established = 2000
> >> net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 12
> >> net.netfilter.nf_conntrack_tcp_timeout_close_wait = 12
> >> net.netfilter.nf_conntrack_tcp_timeout_last_ack = 12
> >> net.netfilter.nf_conntrack_tcp_timeout_time_wait = 10
> >> net.netfilter.nf_conntrack_tcp_timeout_close = 8
> >> net.netfilter.nf_conntrack_tcp_timeout_max_retrans = 30
> >> net.netfilter.nf_conntrack_tcp_timeout_unacknowledged = 30
> >> net.netfilter.nf_conntrack_tcp_loose = 1
> >> net.netfilter.nf_conntrack_tcp_be_liberal = 0
> >> net.netfilter.nf_conntrack_tcp_max_retrans = 3
> >> net.netfilter.nf_conntrack_udp_timeout = 12
> >> net.netfilter.nf_conntrack_udp_timeout_stream = 18
> >> net.netfilter.nf_conntrack_icmp_timeout = 8
> >> net.netfilter.nf_conntrack_acct = 1
> >> net.netfilter.nf_conntrack_max = 1048576
> >> net.netfilter.nf_conntrack_count = 7645
> >> net.netfilter.nf_conntrack_buckets = 16384
> >> net.netfilter.nf_conntrack_checksum = 1
> >> net.netfilter.nf_conntrack_log_invalid = 0
> >> net.netfilter.nf_conntrack_expect_max = 256
> >>
> >>
> >>
> >> No virus found in this incoming message.
> >> Checked by AVG - www.avg.com
> >> Version: 8.5.409 / Virus Database: 270.13.73/2338 - Release Date:
> >> 09/03/09 05:50:00
> >
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.409 / Virus Database: 270.13.73/2338 - Release Date:
> 09/03/09 05:50:00
Received on 2009/09/03 21:00