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Hi,
I've managed to get a very simple LVS-DR setup running as a proof of
concept for my company. It works very well except for ldirectord
monitoring.
The realservers run several WebSeal (An HTTP Security Proxy. Acts like
a normal HTTP Server) instances each bound to a VIP address on the
loopback. Webseal can not listen on more than one interface.
When I run ldirectord it attempts to connect to the RIP address rather
than VIP address. Ethereal confirms this as I see a whole load of RST,
ACKs for <RIP>:80
ldirectord -d /etc/ha.d/conf/sandpit
DEBUG2: Running exec(/usr/sbin/ldirectord -d /etc/ha.d/conf/sandpit)
Running exec(/usr/sbin/ldirectord -d /etc/ha.d/conf/sandpit)
DEBUG2: Usage ldirectord [-d] [configfile]
{start|stop|restart|reload|status}
Type ldirectord -h for more information
Usage ldirectord [-d] [configfile] {start|stop|restart|reload|status}
Type ldirectord -h for more information
DEBUG2: Exiting with exit_status 1: Initialisation Error
Exiting with exit_status 1: Initialisation Error
wstemp1:~ # ldirectord -d /etc/ha.d/conf/sandpit start
DEBUG2: Running exec(/usr/sbin/ldirectord -d /etc/ha.d/conf/sandpit
start)
Running exec(/usr/sbin/ldirectord -d /etc/ha.d/conf/sandpit start)
DEBUG2: Starting Linux Director v1.77.2.2 with pid: 6198
Starting Linux Director v1.77.2.2 with pid: 6198
DEBUG2: Running system(/sbin/ipvsadm -E -t 192.168.180.202:80 -s wrr )
Running system(/sbin/ipvsadm -E -t 192.168.180.202:80 -s wrr )
DEBUG2: Changed virtual server: 192.168.180.202:80
Changed virtual server: 192.168.180.202:80
DEBUG2: Running system(/sbin/ipvsadm -e -t 192.168.180.202:80 -r
192.168.180.231:80 -g -w 5)
Running system(/sbin/ipvsadm -e -t 192.168.180.202:80 -r
192.168.180.231:80 -g -w 5)
DEBUG2: Changed real server: 192.168.180.231:80 (1 x
192.168.180.202:80)
Changed real server: 192.168.180.231:80 (1 x 192.168.180.202:80)
DEBUG2: Checking negotiate: real
server=negotiate:http:tcp:192.168.180.231:80::5:\/index\.html:
(virtual=tcp:192.168.180.202:80)
DEBUG2: Checking http: url="http://192.168.180.231:80/index.html";
virtualhost="192.168.180.231"
LWP::UserAgent::new: ()
LWP::UserAgent::request: ()
LWP::UserAgent::send_request: GET http://192.168.180.231:80/index.html
LWP::UserAgent::_need_proxy: Not proxied
LWP::Protocol::http::request: ()
LWP::UserAgent::request: Simple response: Internal Server Error
DEBUG2: Running system(/sbin/ipvsadm -e -t 192.168.180.202:80 -r
192.168.180.231:80 -g -w 0)
Running system(/sbin/ipvsadm -e -t 192.168.180.202:80 -r
192.168.180.231:80 -g -w 0)
DEBUG2: Quiescent real server: 192.168.180.231:80 (1 x
192.168.180.202:80) (Weight set to 0)
Quiescent real server: 192.168.180.231:80 (1 x 192.168.180.202:80)
(Weight set to 0)
DEBUG2: Disabled server=192.168.180.231
DEBUG3: Headers Content-Type: text/plain
Client-Date: Fri, 19 May 2006 16:27:18 GMT
Client-Warning: Internal response
DEBUG2: check_http: http://192.168.180.231:80/index.html is down
ldirectord sandpit received signal: INT
DEBUG2: Running system(/sbin/ipvsadm -D -t 192.168.180.202:80)
Running system(/sbin/ipvsadm -D -t 192.168.180.202:80)
DEBUG2: Removed virtual server: 192.168.180.202:80
Removed virtual server: 192.168.180.202:80
Should I be expecting this? I noticed this thread:
http://archive.linuxvirtualserver.org/html/lvs-users/2002-09/msg00232.html
but hoped it may have been addressed.
Should I expect this behaviour from ldirectord?
Some setup info:
Director: Suse Linux Enterprise 9 on a pretty hefty Xenon box. One
ethernet card.
LVS-DR
ifconfig eth0:1 192.168.180.202 broadcast 192.168.180.202 netmask
255.255.255.0
DIP address = 192.168.180.252
VIP address = 192.168.180.202
Realservers: 2 x Windows 2000
RIP address = 192.168.180.231, 192.168.180.232
VIP address aliased on lo
ldirectord ver: heartbeat-ldirectord-1.2.2-0.6.rpm
cat /etc/ha.d/conf/sandpit
virtual=192.168.180.202:80
real=192.168.180.231:80 gate 5
service=http
request="/index.html"
Thanks in advance, Alastair
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