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
>
Received on 2009/09/03 20:14