Hello: I don't understand "HAProxy manages buffers and just forward them in both ways"
There are two different connections : client <--> HA Proxy and HA Proxy <--> server I guess both of them handle their TCP flow control separately am I wrong ? 2013/4/24 ZeN <[email protected]> > Thks for the reply.. > here is the capture TCP packet ( i hope it correct ) > > 86 1.531811000 192.168.77.1 192.168.77.50 TCP 60 [TCP > ZeroWindow] 37535 > esri-sde [ACK] Seq=1 Ack=1 Win=0 Len=0 > 87 1.531829000 192.168.77.50 192.168.77.1 TCP 66 [TCP ACKed > unseen segment] esri-sde > 37535 [ACK] Seq=1 Ack=2 Win=64887 Len=0 > TSval=14742645 TSecr=349169802 > 259 11.533777000 192.168.77.1 192.168.77.50 TCP 60 [TCP > ZeroWindow] 37535 > esri-sde [ACK] Seq=1 Ack=1 Win=0 Len=0 > > as you can see, 192.168.77.50 is the ip of application server, and > 192.168.77.1 is the ip of Haproxy server.. > so if the "HAProxy manages buffers and just forward them in both ways > (client to server and vice-versa)" .. > > it should be passing the tcp ack to the client side/ip ( CMIIW ), which is > public ip.. > > > > > > On 4/24/13 12:29 PM, Baptiste wrote: > >> Hi, >> >> Could you take a capture of this check from the server? >> In TCP mode, HAProxy manages buffers and just forward them in both >> ways (client to server and vice-versa). >> >> Baptiste >> >> On Wed, Apr 24, 2013 at 4:59 AM, ZeN <[email protected]> wrote: >> >>> Hello >>> please bear with because i'm new with haproxy. >>> recently i tried to loadbalance tcp base applications which bind/listen >>> into >>> specific ports. >>> the behavior of the applications ( server side ) is : >>> >>> check time out to the connected client ( 20 seconds), than >>> close/terminated >>> the staled clients connections. >>> >>> but with haproxy, i still cannot manage this behavior to work, because >>> the >>> server send the time out checking to the haproxy server, not directly to >>> the >>> clients. >>> may be some of you who has more expertize with haproxy could point me >>> what >>> is wrong with my setup. >>> >>> i'm running HA-Proxy version 1.4.23 2013/04/03 from FreeBSD ports under >>> FreeBSD 9.1-RELEASE-p2 >>> >>> here is my simple haproxy conf: >>> >>> >>> global >>> log 127.0.0.1 local0 debug >>> maxconn 4096 >>> # ulimit-n 1024 >>> uid 1 >>> gid 1 >>> daemon >>> pidfile /var/run/haproxy.pid >>> >>> listen stats :8081 >>> balance >>> mode http >>> stats enable >>> stats auth blah:blahpass >>> stats refresh 5s >>> >>> listen TEST :5150 ##bind to all interfaces## >>> mode tcp >>> option tcpka >>> option clitcpka >>> option srvtcpka >>> option tcp-smart-accept >>> option tcplog >>> timeout client 320s >>> timeout connect 30s >>> timeout server 30s >>> timeout check 30s >>> option abortonclose >>> option redispatch >>> retries 3 >>> log global >>> balance roundrobin >>> >>> >>> server piglet 192.168.5.18:5150 maxconn 2000 >>> server tigger 192.168.5.30:5150 maxconn 2000 >>> >>> >>> any help will be much appreciated >>> >>> TIA >>> >>> ZeN >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> > >
