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Re: [Linux-cluster] Re: Trying to locate the bottleneck



Hi Henry

Unfortunately not, however I did get this output from /var/log/messages

Jul 9 11:45:41 loadbalancer-01 kernel: Netfilter messages via NETLINK v0.30. Jul 9 11:45:41 loadbalancer-01 kernel: ip_conntrack version 2.4 (12289 buckets, 98312 max) - 228 bytes per conntrack

Thanks

R.

Henry Robertson wrote:


    Message: 1
    Date: Wed, 8 Jul 2009 13:20:02 -0400
    From: Jeff Sturm <jeff sturm eprize com
    <mailto:jeff sturm eprize com>>
    Subject: RE: [Linux-cluster] Trying to locate the bottleneck
    To: "linux clustering" <linux-cluster redhat com
    <mailto:linux-cluster redhat com>>
    Message-ID:
           <64D0546C5EBBD147B75DE133D798665F02FDC2F8 hugo eprize local>
    Content-Type: text/plain; charset="us-ascii"

    I think this is created when you first run iptables.  If you have
    no NAT
    rules on the load balancer, the ip_conntrack_max setting won't exist,
    and you'll need to look somewhere else for the problem.

    -Jeff

    > -----Original Message-----
    > From: linux-cluster-bounces redhat com
    <mailto:linux-cluster-bounces redhat com>
    [mailto:linux-cluster-bounces redhat com
    <mailto:linux-cluster-bounces redhat com>]
    > On Behalf Of Raymond Setchfield
    > Sent: Wednesday, July 08, 2009 11:13 AM
    > To: linux clustering
    > Subject: Re: [Linux-cluster] Trying to locate the bottleneck
    >
    > Hi Guys
    >
    > I am trying to locate ip_conntrack_max within CentOS 5.3 but it
    doesn't
    > appear to be where I expect it to be. I have googled for this
    and from
    > what I have read it should be located within
    >
    > /proc/sys/net/ipv4/ip_conntrack_max
    >
    > Which is where I thought it would be but unfortunately it isn't.
    >
    > Here is some output
    >
    > [root loadbalancer-01 ~]# grep conn /proc/slabinfo
    > ip_vs_conn             0      0    128   30    1 : tunables  120
      60
    > 8 : slabdata      0      0      0
    >
    > [root loadbalancer-01 ~]# rpm -qa | grep kernel
    > kernel-headers-2.6.18-53.1.14.el5
    > kernel-devel-2.6.18-53.1.14.el5
    > kernel-2.6.18-53.1.14.el5
    >
    > [root loadbalancer-01 ~]# cat
    /proc/sys/net/ipv4/netfilter/ip_conntrack_max
    > cat: /proc/sys/net/ipv4/netfilter/ip_conntrack_max: No such file or
    > directory
    >
    >
    > I have also checked within  /etc/sysctl.conf and nothing.
    >
    > Can someone help me?
    >
    > Thanks in advance
    >
    > Raymond
    >



Try 'modprobe ip_conntrack' and see if it shows up. After that I was able to set the value in /etc/sysctl.conf

Good luck!

Henry ------------------------------------------------------------------------

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