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Hi,
I'm doing LVS/HA Direct Routing using two old Linux-2.4.x boxes. My arp
block is implemented using the old "noarp" module. High Availability with
heartbeat and load balancing with ldirectord works well. Failover works ok
at some point. But what I wish to resolve with my setup are the unwanted
failovers.
The scenario is like this, once the current (default/configured) Master node
goes down, and the Secondary node takes over, the default Master node that
went down will still tend to grab Directorship status from the already
(currently) running Master node. This unwanted failover happens within a
_still_undetermined_ period after the newly raised node re-joins the
cluster. Sometimes this failover happens almost immediately, sometimes after
many hours (even after a few days) of run time.
I'm still using the old release heartbeat-1.2.3 and ldirectord that came
along with it.
My configurations for both boxes are as follows:
#-----------------------
# /etc/ldirectord.conf
#-----------------------
checktimeout=250
checkinterval=5
logfile="local0"
quiescent=yes
virtual=203.176.19.77:5432
fallback=127.0.0.1:5432 gate
service=none
protocol=tcp
checktype=connect
real=203.176.19.75:5432 gate
real=203.176.19.76:5432 gate
scheduler=rr
virtual=203.176.19.77:5000
fallback=127.0.0.1:5000 gate
service=none
protocol=tcp
checktype=connect
real=203.176.19.75:5000 gate
real=203.176.19.76:5000 gate
scheduler=rr
#-----------------------
# /etc/ha.d/ha.cf
#-----------------------
debugfile /var/log/ha-debug
logfile /var/log/ha-log
logfacility local0
keepalive 2
deadtime 5
udpport 694
auto_failback off
bcast eth1
mcast eth1 224.0.0.0 694 1 0
node cluster1
node cluster2
#-----------------------
# /etc/ha.d/haresources
#-----------------------
cluster1 IPaddr::203.176.19.77 ldirectord::/etc/ldirectord.cf noarp setstate
dhcpdsvc
During these unwanted failovers, I am not able to detect any abnormal, or
sudden "down-state" of the services that I'm performing LVS/HA with.
What could be wrong with my config settings, as I have "auto_failback" set
to "off"? My build environment restricts me from building/using the most
recent packages. Thus, I am tasked to (as much as possible) find a fix for
this issue w/o replacing (upgrading) my current packages.
Any suggestions/help/comments are greately appreciated.
Best regards,
Vic
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