We have a tool that we use to take nodes in and out of service. Basically
it either creates or removes a server_enabled file. This causes our L4 load
balancer to remove the ATS node from its pool. In addition to facilitate
draining in ATS header_rewrite plugin config we have this:
# close keepalive sessions if server is disabled
cond %{SEND_RESPONSE_HDR_HOOK}
cond %{ACCESS:/path/to/server_enabled} [NOT,OR]
set-header Connection "close"
Caveat is this doesn't work with HTTP/2 I'm told, but we don't do that so
this works nicely for us. I can't take credit for the header_rewrite trick,
I believe it came from Yahoo.
--
Phillip
On Mon, Nov 5, 2018 at 7:25 AM ezko <[email protected]> wrote:
> Thanks Jermy,
> this sounds like a much simpler solution.
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> --
> Sent from: http://apache-traffic-server.24303.n7.nabble.com/
>
