Lvs dont remove route automatic (squid+direct routing)

[Timothy Bushart]

quiesce_server = 0









> -----Original Message-----
> From: piranha-list-bounces at redhat.com
> [mailto:piranha-list-bounces at redhat.com]On Behalf Of nattapon viroonsri
> Sent: Thursday, March 02, 2006 11:21 PM
> To: piranha-list at redhat.com
> Subject: Lvs dont remove route automatic (squid+direct routing)
> 
> 
> ## My Config show as below
> 
> RHEL 4 update 1
> ipvsadm-1.24-6
> piranha-0.8.1-1
> 
> service: Squid
> forward method: Direct routing
> schedule: lblc
> persistence: 360
> 
> director:
> eth0: 172.16.100.37
> eth0:1: 172.16.100.36 (virtual ip)
> 
> realserver1 (cache1):
> eth0:  172.16.100.39
> eth1: 172.16.100.36 (virtual ip)
> 
> ## hide virtual ip on  cache1
> arptables -A IN -d 172.16.100.36  -j DROP
> arptables -A OUT -d  0/0 -j mangle --mangle-ip-s 172.16.100.39
> 
> realserver2 (cache2) :
> eth0: 172.16.100.40
> eth1: 172.16.100.36 (virtual ip)
> 
> ## hide virtual ip on cache2
> arptables -A IN -d 172.16.100.36  -j DROP
> arptables -A OUT -d  0/0 -j mangle --mangle-ip-s 172.16.100.40
> 
> 
> ## check.sh
> #!/bin/bash
> echo "GET / HTTP/1.0\n\n" | nc $1 8080
> if [ $? == "0" ]; then
>         echo "OK"
> else
>         echo "FAIL"
>        /sbin/ipvsadm -d -t 172.16.100.36:8080 -r $1
> fi
> 
> ## lvs.cf
> serial_no = 123
> primary = 172.16.100.37
> service = lvs
> backup_active = 0
> backup = 172.16.100.38
> heartbeat = 1
> heartbeat_port = 539
> keepalive = 6
> deadtime = 18
> network = direct
> nat_nmask = 255.255.255.0
> debug_level = NONE
> monitor_links = 1
> virtual PROXY {
>      active = 1
>      address = 172.16.100.36 eth0:1
>      vip_nmask = 255.255.255.0
>      port = 8080
>      persistent = 360
>      expect = "OK"
>      use_regex = 0
>      send_program = "/etc/sysconfig/ha/check.sh %h"
>      load_monitor = none
>      scheduler = lblc
>      protocol = tcp
>      timeout = 5
>      reentry = 10
>      quiesce_server = 1
>      server Cache1 {
>          address = 172.16.100.39
>          active = 1
>          weight = 200
>      }
>      server Cache2 {
>          address = 172.16.100.40
>          active = 1
>          weight = 200
>      }
> }
> 
> 
> When nanny cant connect to fail service (squid) on real server.
> it dont remove route to that real server , so director still 
> forward request 
> to that fail squid realserver.
> 
> so i try to manual remove route in check.sh when nanny detech 
> fail service. 
> but it work for 20 minute
> and then client  cant connect to virtual ip.
> 
> Is it lvsd suppose to remove route to fail node automatically when nanny 
> detech fail service ?
> or have any way for lvs to remove route to that fail node 
> automatically when 
> nanny detech fail service ?
> 
> Regards,
> Nattapon
> 
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