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jasenux
n00b
Joined: 22 Jul 2007
Posts: 12
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 Posted: Thu Mar 08, 2012 7:50 am Post subject: help needed - keepalive + haproxy |
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Hi all,
Help needed.
I have 5 different circuits, and on each circuit, I have a pair of load balancer (running haproxy 1.4.8 or 1.4.19 + keepalived 1.1.20 or 1.2.2-r3 on Gentoo). 4 pairs out of these 5 work perfectly. Only the fifth pair is not working properly. They all share the same configuration - except of course, the IPs are different.
The fifth pair will work for a bit (30 min to 4 hours) then die. No issues with the other 4 pairs. With the fifth pair, if I just run haproxy, it is fine. They are all VMware guests. The only difference is how they connect to the Internet. The good 4 pairs connect to the Internet via DIA; while the fifth one is behind a IP-IP GRE tunnel (hence MTU is 1476 and the MSS is 1436). When it is not working, I don't even see packets coming to it - I do see packets passing the firewall and heading towards the load balancer. If I restart keepalived again, I will start seeing packets again....
keepalived.conf:
vrrp_script check_haproxy {
script "killall -0 haproxy"
interval 2
weight 2
}
vrrp_instance VI_174 {
interface eth0
state MASTER
virtual_router_id 174
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 162163
}
virtual_ipaddress {
a.b.c.174
}
track_script {
check_haproxy
}
} |
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NewBlackDak
Guru
Joined: 02 Nov 2003
Posts: 512
Location: Utah County, UT
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| Posted: Tue Oct 16, 2012 2:26 pm Post subject: Re: help needed - keepalive + haproxy |
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| jasenux wrote: | Hi all,
Help needed.
I have 5 different circuits, and on each circuit, I have a pair of load balancer (running haproxy 1.4.8 or 1.4.19 + keepalived 1.1.20 or 1.2.2-r3 on Gentoo). 4 pairs out of these 5 work perfectly. Only the fifth pair is not working properly. They all share the same configuration - except of course, the IPs are different.
The fifth pair will work for a bit (30 min to 4 hours) then die. No issues with the other 4 pairs. With the fifth pair, if I just run haproxy, it is fine. They are all VMware guests. The only difference is how they connect to the Internet. The good 4 pairs connect to the Internet via DIA; while the fifth one is behind a IP-IP GRE tunnel (hence MTU is 1476 and the MSS is 1436). When it is not working, I don't even see packets coming to it - I do see packets passing the firewall and heading towards the load balancer. If I restart keepalived again, I will start seeing packets again....
keepalived.conf:
vrrp_script check_haproxy {
script "killall -0 haproxy"
interval 2
weight 2
}
vrrp_instance VI_174 {
interface eth0
state MASTER
virtual_router_id 174
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 162163
}
virtual_ipaddress {
a.b.c.174
}
track_script {
check_haproxy
}
} |
Zombie post I know, but we're seeing the same thing with a similar setup.
2 identical vms:
gentoo-sources-3.1.6
keepalived-1.2.2-r3
haproxy-1.4.18-r1
1 vCPU
2 GB RAM
Haproxy just runs forever on both machines. We introduced keepalive after a storage mishap. The site was down for nearly 15 minutes while we rebooted the haproxy box, and waited for fsck. Keepalived runs anywhere from 4 days to around 6 weeks, and dies without any warning. Restarting keepalived brings the site back online immediately. We have resorted to rebooting them on regular intervals. It's not ideal, but we need 99.999% up time for this service, and it's our only workaround at this point.
_________________
Gentoo systems.
X2 4200+@2.6 - Athy
X2 3600+ - Myth
UltraSparc5 440 - sparcy |
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