I am testing a simple heartbeat/ldirector LVS cluster, right now
just for http on port 80. Everything seems to be running, except
that the virtual IP 172.16.100.106 is not listening on the public
director lvc4 (172.16.100.104). The director node can access the
real servers, the virtual IP is bound to the public interface, but
it is not responding on port 80. iptables is open on port 80. The
order is such that the virtual IP address comes up first, then
ldirectord.
I've included some configuration and run time information below.
tethereal shows that the initial SYN packet bouces off the director
with a RST. I figure this must be simple, but several hours of
googling and testing different changes have not resolved it. If
anyone has an idea what might be happening I would certainly
appreciate it. Thanks,
-- Michael
===================================================
# cat ha.cf
mcast public 224.172.16.100 694 1 0
mcast private 224.172.16.101 694 1 0
node lvc1.fishnet.us
node lvc2.fishnet.us
node lvc3.fishnet.us
node lvc4.fishnet.us
coredumps on
crm on
use_logd yes
respawn root /usr/lib/heartbeat/stonithd
===================================================
# cat ldirectord.cf
checktimeout = 5
negotiatetimeout = 5
checkinterval = 5
checkcount = 2
autoreload = yes
virtual = 172.16.100.106:80
real = 172.16.100.101:80 gate 5
real = 172.16.100.102:80 gate 5
service = http
protocol = tcp
persistent=600
scheduler=rr
checktype=negotiate
===================================================
# ifconfig
public Link encap:Ethernet HWaddr 00:A0:CC:3B:72:53
inet addr:172.16.100.104 Bcast:172.16.100.255 Mask:255.255.255.0
inet6 addr: fe80::2a0:ccff:fe3b:7253/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:470162 errors:2 dropped:0 overruns:0 frame:0
TX packets:176606 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:84370102 (80.4 MiB) TX bytes:25561999 (24.3 MiB)
public:0 Link encap:Ethernet HWaddr 00:A0:CC:3B:72:53
inet addr:172.16.100.106 Bcast:172.16.100.255 Mask:255.255.255.0
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
===================================================
# crm_mon -1 -r
Resource Group: group_lvs
ip_106 (heartbeat::ocf:IPaddr): Started lvc4.fishnet.us
lvs_106 (heartbeat::ocf:ldirectord): Started lvc4.fishnet.us
===================================================
# netstat -atn
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address
tcp 0 0 0.0.0.0:11111 0.0.0.0:*
tcp 0 0 0.0.0.0:111 0.0.0.0:*
tcp 0 0 0.0.0.0:16851 0.0.0.0:*
tcp 0 0 0.0.0.0:5560 0.0.0.0:*
tcp 0 0 127.0.0.1:25 0.0.0.0:*
tcp 0 0 0.0.0.0:666 0.0.0.0:*
tcp 0 0 127.0.0.1:60348 127.0.0.1:5560
tcp 0 0 172.16.100.104:60733 172.16.100.109:3260
tcp 0 0 127.0.0.1:5560 127.0.0.1:60348
tcp 0 0 172.16.100.104:58335 172.16.100.107:22
tcp 0 0 :::22 :::*
===================================================
tethereal -n -i any host 172.16.100.106
27.880464 172.16.100.103 -> 172.16.100.106 TCP 1822 > 80 [SYN] Seq=0 Win=5840
Len=0 MSS=1460 TSV=35852490 TSER=0 WS=3
27.880601 172.16.100.106 -> 172.16.100.103 ICMP Destination unreachable (Port
unreachable)
27.880612 172.16.100.106 -> 172.16.100.103 ICMP Destination unreachable (Port
unreachable)
===================================================
# cib.xml
<configuration>
<crm_config>
<cluster_property_set id="cib-bootstrap-options">
<attributes>
<nvpair id="cib-bootstrap-options-dc-version" name="dc-version"
value="2.1.3-node: 552305612591183b1628baa5bc6e903e0f1e26a3"/>
<nvpair id="cib-bootstrap-options-stonith-enabled" name="stonith-enabled"
value="true"/>
<nvpair name="last-lrm-refresh" id="cib-bootstrap-options-last-lrm-refresh"
value="1202605512"/>
</attributes>
</cluster_property_set>
</crm_config>
<nodes>
<node id="f2a8d1b1-0514-444b-a6f0-244036d27d80" uname="lvc3.fishnet.us"
type="normal"/>
<node id="a616e3d6-5b5f-45f7-b09a-97766e7ffd0d" uname="lvc2.fishnet.us"
type="normal"/>
<node id="2ea010dd-5ac7-4f87-a408-6c3b067181fa" uname="lvc1.fishnet.us"
type="normal"/>
<node id="73847c14-18c1-49ec-a26f-9ef33514d43c" uname="lvc4.fishnet.us"
type="normal"/>
</nodes>
<resources>
<group id="group_lvs">
<meta_attributes id="group_lvs_meta_attrs">
<attributes>
<nvpair id="group_lvs_metaattr_target_role" name="target_role"
value="started"/>
</attributes>
</meta_attributes>
<primitive id="ip_106" class="ocf" type="IPaddr" provider="heartbeat">
<instance_attributes id="ip_106_instance_attrs">
<attributes>
<nvpair id="18022136-b3fe-40fd-b3db-78ffe7bbb94b" name="ip"
value="172.16.100.106"/>
</attributes>
</instance_attributes>
<meta_attributes id="ip_106_meta_attrs">
<attributes>
<nvpair id="ip_106_metaattr_target_role" name="target_role"
value="started"/>
</attributes>
</meta_attributes>
</primitive>
<primitive id="lvs_106" class="ocf" type="ldirectord"
provider="heartbeat">
<instance_attributes id="lvs_106_instance_attrs">
<attributes>
<nvpair id="0c12c9bf-9be9-43b1-bc48-184eca7c2332" name="configfile"
value="/etc/ha.d/ldirectord.cf"/>
</attributes>
</instance_attributes>
</primitive>
</group>
</resources>
<constraints>
<rsc_location id="location_lvs" rsc="group_lvs">
<rule id="prefered_location_lvs" score="100">
<expression attribute="#uname" id="5193dbcb-712b-47bd-8e19-1067cb5fb9d7"
operation="eq" value="lvc4.fishnet.us"/>
</rule>
</rsc_location>
</constraints>
</configuration>
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