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hi List,
I have a 2-server heartbeat plus ldirectord setup to load balance my nginx
services. I have the following setup in my specific case:
-- both servers are used as node of heartbeat, and the real server (nginx)
-- have 2 IPs bound to eth0 and eth0:0 (I have to HA these 2 IPs)
-- lo:0 and lo:1 are used to stored the VIPs when the node is in standby
mode
-- using direct routing in the ldirectord
I added the following section to /etc/ha.d/haresources so all the two IPs
can be took over by the standby machine when I shutdown the active one, so
this is basically working:
s1 \
ldirectord::ldirectord.cf \
LVSSyncDaemonSwap::master \
IPaddr2::VIP1/26/eth0/x.x.x.x \
IPaddr2::VIP2/28/eth0:0/x.x.x.x
When I use ipvsadm, I see something like this:
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP VIP1:http rr
-> RIP1-2:http Route 1 174 0
-> RIP1-1:http Local 1 2 13
TCP VIP2:http rr
-> RIP2-2:http Route 1 712 0
-> RIP2-1:http Local 1 20 45
My questions are:
1) Are RIP1-1 and RIP2-1 being recognized as "Local" correct? RIP1-1 and
RIP2-1 are the IPs of the active node.
2) Why the remote (Route) server is taking much more requests than the local
one?
3) Why the local server has a large number of "InActConn"?
I tried to shutdown the nginx on the remote server and saw the RIP1-2 and
RIP2-2 being removed from the above table correctly, and my service is still
up, which means the RIP1-1 and RIP2-1 are serving properly.
My /etc/ha.d/ldirectord.cf
# Global Directives
checktimeout=10
checkinterval=2
#fallback=127.0.0.1:80
autoreload=no
logfile="/var/log/ha/ldirectord.log"
#logfile="local0"
emailalert="xxx@xxxxxx"
emailalertfreq=3600
emailalertstatus=all
quiescent=no
virtual=VIP1:80
real=RIP1-1:80 gate
real=RIP1-2:80 gate
#fallback=127.0.0.1:80 gate
service=http
request="/ldirector.html"
receive="ha"
scheduler=rr
#persistent=600
protocol=tcp
checktype=negotiate
# Sample for an http virtual service
virtual=VIP2:80
real=RIP2-1:80 gate
real=RIP2-2:80 gate
#fallback=127.0.0.1:80 gate
service=http
request="/ldirector.html"
receive="ha"
scheduler=rr
#persistent=600
protocol=tcp
checktype=negotiate
Any help is appreciated.
Regards,
Yan
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