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Hi
First, greetings to all on this list, I've just signed in.
Second, the issue.
I have load balancing solution, using ldirectord to balance http
requests between farm of servers. Almost everything is working fine.
Servers death is detected, failover works, all looks nice. Problem I
have is that load balancer is checking apache status page only like
every 4 minutes, while checkinterval is set to 10 seconds as far as I
can understand this setting. This means that apache on one real servers
can be stopped, but request are still getting to it, as it is not
detected as faulty. Any ideas why it is like that ?? Any places where to
search ?? I was searching on Google, but nothing useful came out - all
issues were because this parameter was not set at all, so it was
defaulting to 30 seconds.
OS is Centos 5.1 64 bit, heartbeat and ldirector taken from default
repositories.
Here is ha.cf file :
logfacility local0
auto_failback on
debug 1
keepalive 2
deadtime 10
warntime 10
initdead 10
mcast eth0 225.0.0.1 694 1 0
mcast eth1 225.0.0.1 694 1 0
node lba1
node lba2
respawn hacluster /usr/lib64/heartbeat/ipfail
apiauth ipfail gid=haclient uid=hacluster
and part of ldirectord.cf :
# Global Directives
checktimeout=5
checkinterval=10
fallback=127.0.0.1:80
autoreload=yes
logfile="/var/log/ldirectord.log"
#logfile="local0"
quiescent=yes
negotiatetimeout=2
#Main http balancing
virtual=1.2.3.4:80
service=http
scheduler=wlc
request="serverstatus.html"
receive="NEW LB"
checktype=5
real=192.168.0.101:80 masq 3
real=192.168.0.117:80 masq 4
negotiatetimeout=1
.....
I've replaced real IP with 1.2.3.4 and cut plenty of real servers here
and all rest of virtual sections. I'm clueless, config is mostly copied
from old solution, running Debian 3.0, and probably older version of
ldirectord/heartbeat. That Debian balancers are connecting to all real
servers every 2 - 3 seconds, so it is rather not firewall or
connectivity issue. I've tested firewall bu switching it off for few
moments, didn't changed anything.
I would be glad for really any advice regarding this.
--
Regards
Piotr Gbyliczek
2nd Line Technican
ForLinux Ltd.
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