Re: NFLOG Performance issues ...

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Please help .... I hope I am not alone!!!

On 8/30/17, Akshat Kakkar <akshat.1984@xxxxxxxxx> wrote:
>  am using ulogd2 to log iptables activity.
> However, when using pgsql as output plugin ... performance is very
> very sluggish. (~130-150 entries per second)
>
> To enhance performance I am trying
>
> modprobe ipt_ULOG nlbufsiz=65535 flushtimeout=1000
>
> but this gives error : ipt_ULOG module not found.
>
>
> On the same lines, I tried
>
> modprobe ipt_NFLOG nlbufsiz=65535 flushtimeout=1000
> It didnt give any error !!!
>
> But still there is no increase in performance.
> Are these values effective?
>
> I am also using  --nflog-threshold 50 in iptables rule.
>
> I am setting buffer_size as
> netlink_socket_buffer_size=104857600
> netlink_socket_buffer_maxsize=1048576000
>
> When running ulog, it gives message of setting buffer size as
> 21708600. Though it didnt give any message like
> "ulogd_inppkt_NFLOG.c:443 We are losing events, increasing buffer size
> to xxxxxx"
> but again why it is only setting buffer size as 21708600 though I have
> set in config as 104857600?
>
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