[lvs-users] ldirectord doesn't bind on VIP:port

Kit Gerrits kitgerrits at gmail.com
Tue Mar 3 23:57:16 GMT 2009


You might also try 'ip addr' to look for the cluster IP.
Certain packages (Like Red Hat Clustering), don't show their IP with
ifconfig, but it will show up with 'ip addr'



Kit 

-----Original Message-----
From: lvs-users-bounces at linuxvirtualserver.org
[mailto:lvs-users-bounces at linuxvirtualserver.org] On Behalf Of Tim Bourne
Sent: dinsdag 3 maart 2009 23:59
To: lvs-users at linuxvirtualserver.org
Subject: [lvs-users] ldirectord doesn't bind on VIP:port

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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