Open-Xchange - User contributions [en]

Keepalived

2011-07-29T17:53:08Z

178.7.136.228: /* Introduction */

= Example loadbalancing configuration for Open-Xchange Cluster =
== Introduction ==

this page contains a basic description about how to set up keepalived for Open-Xchange cluster. This example is to work on debian systems. Keepalived mode is Direct Routing.

It is required to have ox servers and loadbalancer connected to the same switch or hub and that there is no filter for network packages between (some virtualization system do filter, too), so that MAC rewriting works.

For more information please see:
[http://www.keepalived.org/documentation.html www.keepalived.org]

== Directors setup ==

test1:~# apt-get install keepalived
dpkg-reconfigure ipvsadm

answer the questions with "Yes" and then "Backup"

create a file <pre>/etc/keepalived/keepalived.conf</pre> with following contend (adapt network adresses)

global_defs {
router_id OX
}

vrrp_sync_group OX_GROUP {
group {
OX_GOUP
}
}

vrrp_instance OX_VRRP {
state BACKUP
interface eth0
garp_master_delay 10
virtual_router_id 10
priority 101
nopreempt
advert_int 1
authentication {
auth_type AH # Simple 'PASS' can use
auth_pass 1234 # example password '1234'
}
virtual_ipaddress {
10.20.30.77/24 brd 10.20.30.255 dev eth0 # virtual service ip 10.20.30.67
}
virtual_ipaddress_excluded {
}
}

virtual_server_group OX_HTTP {
10.20.30.77 80 # virtual ip and port 80
}

virtual_server_group OX_OL_PUSH {
10.20.30.77 44335 # VIP VPORT
}

virtual_server group OX_HTTP {
delay_loop 3
lvs_sched rr
lvs_method DR
protocol TCP
virtualhost 10.20.30.77

real_server 10.20.30.123 80 {
weight 1
inhibit_on_failure
HTTP_GET {
url {
path /servlet/TestServlet
status_code 200
}
connect_port 80
connect_timeout 10
}
}

real_server 10.20.30.321 80 {
weight 1
inhibit_on_failure
HTTP_GET {
url {
path /servlet/TestServlet
status_code 200
}
connect_port 80
connect_timeout 10
}
}
}

virtual_server group OX_OL_PUSH {
delay_loop 3
lvs_sched rr
lvs_method DR
protocol UDP

real_server 10.20.30.123 44335 {
weight 1
inhibit_on_failure
TCP_CHECK {
connect_port 9999
connect_timeout 5
}
}

real_server 10.20.30.321 44335 {
weight 1
inhibit_on_failure
TCP_CHECK {
connect_port 9999
connect_timeout 5
}
}
}

= Real Servers setup =

create a script that runs on every machine start:

#! /bin/sh

set -x

IP=10.20.30.77

echo 0 > /proc/sys/net/ipv4/conf/lo/rp_filter
echo 1 > /proc/sys/net/ipv4/ip_forward

echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce

/sbin/ifconfig lo:0 $IP netmask 255.255.255.255 broadcast $IP up
/sbin/route add -host $IP dev lo:0

Keepalived

2011-07-29T17:43:55Z

178.7.136.228: /* Introduction */

= Example loadbalancing configuration for Open-Xchange Cluster =
== Introduction ==

this page contains a basic description about how to set up keepalived for Open-Xchange cluster. This example is to work on debian systems. Keepalived mode is Direct Routing.

it is required to have the ox servers and the loadbalancer connected to the same switch or hub so that MAC rewriting works and that there is no filter for the network packages (some virtualization system do that, too).

For more information please see:
[http://www.keepalived.org/documentation.html www.keepalived.org]

== Directors setup ==

test1:~# apt-get install keepalived
dpkg-reconfigure ipvsadm

answer the questions with "Yes" and then "Backup"

create a file <pre>/etc/keepalived/keepalived.conf</pre> with following contend (adapt network adresses)

global_defs {
router_id OX
}

vrrp_sync_group OX_GROUP {
group {
OX_GOUP
}
}

vrrp_instance OX_VRRP {
state BACKUP
interface eth0
garp_master_delay 10
virtual_router_id 10
priority 101
nopreempt
advert_int 1
authentication {
auth_type AH # Simple 'PASS' can use
auth_pass 1234 # example password '1234'
}
virtual_ipaddress {
10.20.30.77/24 brd 10.20.30.255 dev eth0 # virtual service ip 10.20.30.67
}
virtual_ipaddress_excluded {
}
}

virtual_server_group OX_HTTP {
10.20.30.77 80 # virtual ip and port 80
}

virtual_server_group OX_OL_PUSH {
10.20.30.77 44335 # VIP VPORT
}

virtual_server group OX_HTTP {
delay_loop 3
lvs_sched rr
lvs_method DR
protocol TCP
virtualhost 10.20.30.77

real_server 10.20.30.123 80 {
weight 1
inhibit_on_failure
HTTP_GET {
url {
path /servlet/TestServlet
status_code 200
}
connect_port 80
connect_timeout 10
}
}

real_server 10.20.30.321 80 {
weight 1
inhibit_on_failure
HTTP_GET {
url {
path /servlet/TestServlet
status_code 200
}
connect_port 80
connect_timeout 10
}
}
}

virtual_server group OX_OL_PUSH {
delay_loop 3
lvs_sched rr
lvs_method DR
protocol UDP

real_server 10.20.30.123 44335 {
weight 1
inhibit_on_failure
TCP_CHECK {
connect_port 9999
connect_timeout 5
}
}

real_server 10.20.30.321 44335 {
weight 1
inhibit_on_failure
TCP_CHECK {
connect_port 9999
connect_timeout 5
}
}
}

= Real Servers setup =

create a script that runs on every machine start:

#! /bin/sh

set -x

IP=10.20.30.77

echo 0 > /proc/sys/net/ipv4/conf/lo/rp_filter
echo 1 > /proc/sys/net/ipv4/ip_forward

echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce

/sbin/ifconfig lo:0 $IP netmask 255.255.255.255 broadcast $IP up
/sbin/route add -host $IP dev lo:0