On Tue, Apr 24, 2018 at 05:22:39PM +0200, Willy Tarreau wrote:

> Slawa,
> 
> I have a question below :
> 
>     backend default-pool
>          balance roundrobin
>          option httpchk GET /health-check
>          timeout connect 1000ms
>          timeout server 5000ms
>          server  elb1 x.eu-west-1.elb.amazonaws.com:80 maxconn 7000 id 1 
> check resolvers mydns resolve-prefer ipv4
>          server  elb2 y.eu-west-1.elb.amazonaws.com:80 maxconn 7000 id 2 
> check resolvers mydns resolve-prefer ipv4
> (...)
>     resolvers mydns
>          nameserver dns1 8.8.8.8:53
>          resolve_retries       3
>          timeout retry         1s
>          hold other           30s
>          hold refused         30s
>          hold nx              30s
>          hold timeout         30s
>          hold valid           10s
> 
> Do you think the issue described below could have any effect on your use
> case, such as forcing frequent changes, updates or up/down ? Just trying
> to narrow down the possible trigger for the problem (I still failed to
> see it for now, even after sending lots of HTTP traffic and DNS responses) :

My issuse don't originate in ordinary run time: if issuse don't exist
now -- issuse don't exist in future until reload.

I am don't see issuse after start.

I am see this issuse after reload, imeediatly after reload. Not every
reload caused this.

>    https://www.reddit.com/r/sysadmin/comments/8ejrkk/google_dns_issues/

I mean not related to me.

PS: I am try to distribute frontend to cores and failed:

global
        nbproc 1
        nbthread 16
        cpu-map auto:1/1-16 0-15

listen  stats
        bind    :9999

frontend balancer
        bind x.x.x.221:80
        bind x.x.x.221:443 ssl crt xxxx
        bind-process 1/1-1/8 

frontend tcp1
        bind x.x.x.206:443
        bind-process 1/9-1/16
        mode tcp

frontend tcp2
        bind x.x.x.207:443
        bind-process 1/9-1/16
        mode tcp

frontend tcp3
        bind x.x.x.208:443
        bind-process 1/9-1/16
        mode tcp

No addtional configuration in backends sections and I am not show backend
configuration.

TCP load rise CPU use on all core (0-15), I am expect rise CPU use
only on 8-15 core. What I am miss?

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