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I'm rather new to the LVS world(although I've been in linux for years),
so pardon my ignorance on some of the topics/technologies. The short
story is that I'm running ubnutu 8.04 LTS x64. I'm trying to set up
ldirectord on a standalone box for now(I'll juice it up with heartbeat
in a few weeks). Below is a quick list of configs and outputs. The
problem I'm running into is that, while ipvsadm shows my VIP and RIP's
all up and functioning, nothing is listening on the VIP:port shown by
ipvsadm -L -n. I've followed
http://www.howtoforge.com/set-up-a-loadbalanced-ha-apache-cluster-ubuntu
8.04 as my setup guide, save that I didn't add heartbeat to the mix.
Installed ldirectord with:
apt-get install ldirectord
Here's the config, located in /etc/ha.d:
# Global Directives
checktimeout=3
checkinterval=10
quiescent=no
logfile="/var/log/ldirectord.log"
autoreload=yes
virtual=10.16.14.66:80
real=172.16.1.153:2500 masq
real=172.16.1.153:2501 masq
real=172.16.1.153:2502 masq
scheduler=wlc
service=none
persistent=30
checktype=connect
protocol=tcp
When I launch it in debug mode with "/etc/ha.d/resource.d/ldirectord -d
ldirectord.cf start", here's the initial startup output:
DEBUG2: Running exec(/etc/ha.d/resource.d/ldirectord -d ldirectord.cf
start)
Running exec(/etc/ha.d/resource.d/ldirectord -d ldirectord.cf start)
DEBUG2: Invoking ldirectord invoked as: /etc/ha.d/resource.d/ldirectord
ldirectord.cf start
Invoking ldirectord invoked as: /etc/ha.d/resource.d/ldirectord
ldirectord.cf start
DEBUG2: Starting Linux Director v1.186-ha-2.1.3 with pid: 15113
Starting Linux Director v1.186-ha-2.1.3 with pid: 15113
DEBUG2: Running system(/sbin/ipvsadm -A -t 10.16.14.66:80 -s wlc -p 30 )
Running system(/sbin/ipvsadm -A -t 10.16.14.66:80 -s wlc -p 30 )
DEBUG2: Added virtual server: 10.16.14.66:80
Added virtual server: 10.16.14.66:80
DEBUG2: Disabled real server=connect:tcp:172.16.1.153:2502:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG2: Disabled real server=connect:tcp:172.16.1.153:2500:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG2: Disabled real server=connect:tcp:172.16.1.153:2501:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG2: Checking connect: real
server=connect:tcp:172.16.1.153:2500:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Connected to 172.16.1.153 (port 2500)
DEBUG2: Running system(/sbin/ipvsadm -a -t 10.16.14.66:80 -r
172.16.1.153:2500 -m -w 1)
Running system(/sbin/ipvsadm -a -t 10.16.14.66:80 -r 172.16.1.153:2500
-m -w 1)
DEBUG2: Added real server: 172.16.1.153:2500 (10.16.14.66:80) (Weight
set to 1)
Added real server: 172.16.1.153:2500 (10.16.14.66:80) (Weight set to 1)
DEBUG2: Enabled real server=connect:tcp:172.16.1.153:2500:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Activated service 172.16.1.153:2500
DEBUG2: Checking connect: real
server=connect:tcp:172.16.1.153:2501:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Connected to 172.16.1.153 (port 2501)
DEBUG2: Running system(/sbin/ipvsadm -a -t 10.16.14.66:80 -r
172.16.1.153:2501 -m -w 1)
Running system(/sbin/ipvsadm -a -t 10.16.14.66:80 -r 172.16.1.153:2501
-m -w 1)
DEBUG2: Added real server: 172.16.1.153:2501 (10.16.14.66:80) (Weight
set to 1)
Added real server: 172.16.1.153:2501 (10.16.14.66:80) (Weight set to 1)
DEBUG2: Enabled real server=connect:tcp:172.16.1.153:2501:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Activated service 172.16.1.153:2501
DEBUG2: Checking connect: real
server=connect:tcp:172.16.1.153:2502:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Connected to 172.16.1.153 (port 2502)
DEBUG2: Running system(/sbin/ipvsadm -a -t 10.16.14.66:80 -r
172.16.1.153:2502 -m -w 1)
Running system(/sbin/ipvsadm -a -t 10.16.14.66:80 -r 172.16.1.153:2502
-m -w 1)
DEBUG2: Added real server: 172.16.1.153:2502 (10.16.14.66:80) (Weight
set to 1)
Added real server: 172.16.1.153:2502 (10.16.14.66:80) (Weight set to 1)
DEBUG2: Enabled real server=connect:tcp:172.16.1.153:2502:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Activated service 172.16.1.153:2502
DEBUG2: Checking connect: real
server=connect:tcp:172.16.1.153:2500:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Connected to 172.16.1.153 (port 2500)
DEBUG2: Enabled real server=connect:tcp:172.16.1.153:2500:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Activated service 172.16.1.153:2500
DEBUG2: Checking connect: real
server=connect:tcp:172.16.1.153:2501:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Connected to 172.16.1.153 (port 2501)
DEBUG2: Enabled real server=connect:tcp:172.16.1.153:2501:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Activated service 172.16.1.153:2501
DEBUG2: Checking connect: real
server=connect:tcp:172.16.1.153:2502:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Connected to 172.16.1.153 (port 2502)
DEBUG2: Enabled real server=connect:tcp:172.16.1.153:2502:::1:masq:\/:
(virtual=tcp:10.16.14.66:80)
DEBUG3: Activated service 172.16.1.153:2502
Here's the output of ipvsadm -L -n when started from
/etc/init.d/ldirectord start:
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 10.16.14.66:80 wlc persistent 30
-> 172.16.1.153:2502 Masq 1 0 0
-> 172.16.1.153:2501 Masq 1 0 0
-> 172.16.1.153:2500 Masq 1 0 0
Here's ifconfig:
eth0 Link encap:Ethernet HWaddr 00:1e:0b:3c:9f:e4
inet addr:10.16.14.65 Bcast:10.16.14.255 Mask:255.255.255.0
inet6 addr: fe80::21e:bff:fe3c:9fe4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:33765 errors:14 dropped:0 overruns:0 frame:0
TX packets:41937 errors:0 dropped:0 overruns:0 carrier:0
collisions:556 txqueuelen:1000
RX bytes:5883114 (5.6 MB) TX bytes:6308182 (6.0 MB)
Interrupt:19
eth0:0 Link encap:Ethernet HWaddr 00:1e:0b:3c:9f:e4
inet addr:10.16.14.66 Bcast:10.16.14.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:19
Here's the result of netstat -pant:
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address
State PID/Program name
tcp 0 0 10.16.14.65:55391 172.16.1.153:2500
TIME_WAIT -
tcp 0 0 10.16.14.65:55532 172.16.1.153:2501
TIME_WAIT -
tcp 0 0 10.16.14.65:55544 172.16.1.153:2501
TIME_WAIT -
tcp 0 0 10.16.14.65:55541 172.16.1.153:2501
TIME_WAIT -
tcp 0 0 10.16.14.65:33730 172.16.1.153:2502
TIME_WAIT -
tcp 0 0 10.16.14.65:33718 172.16.1.153:2502
TIME_WAIT -
tcp 0 0 10.16.14.65:33727 172.16.1.153:2502
TIME_WAIT -
tcp 0 0 10.16.14.65:55397 172.16.1.153:2500
TIME_WAIT -
tcp 0 0 10.16.14.65:33721 172.16.1.153:2502
TIME_WAIT -
tcp 0 0 10.16.14.65:55394 172.16.1.153:2500
TIME_WAIT -
tcp 0 0 10.16.14.65:55388 172.16.1.153:2500
TIME_WAIT -
tcp 0 0 10.16.14.65:55538 172.16.1.153:2501
TIME_WAIT -
tcp 0 0 10.16.14.65:33724 172.16.1.153:2502
TIME_WAIT -
tcp 0 0 10.16.14.65:55385 172.16.1.153:2500
TIME_WAIT -
tcp 0 0 10.16.14.65:55535 172.16.1.153:2501
TIME_WAIT -
tcp6 0 0 :::22 :::*
LISTEN 4538/sshd
tcp6 0 148 10.16.14.65:22 10.16.14.131:49391
ESTABLISHED 4826/0
Obviously there's nothing listening on 10.16.14.66, except for SSH which
I can connect to. I've installed apache and had it bind on that address
and port just to make sure there wasn't something funny going on with
the IP. I'm afraid I'm missing something simple, but I've been reading
old LVS mailing lists and other blog posts for days and can't seem to
find an answer. I'll gladly add whatever other config/troubleshooting
info is necessary. Thanks for any help or ideas you can give.
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