You need to modify the security policy settings for your vlan... change them 
from reject to accept




From: Biggs, Nathanael 
Sent: Thursday, November 07, 2013 5:18 PM
To: [email protected] 
Subject: [Zenloadbalancer-support] Cluster Flapping - Both are active

Hello All,  

I'm starting to really like ZLB -- we've started using it to handle LDAP 
traffic to some of our directory servers, and it works great.  

For the sake of redundancy, we've been attempting to set up a cluster with a 
second machine. All this is using VMware vSphere.

However, they don't seem to be able to communicate over the virtual IP's that 
I've set aside for the cluster communication. The clustering action will 
succeed, but there will be warnings because the cluster is active on both 
machines. The machines do appear to link up and synchronize the cluster 
settings, but only one is available via the web interface. 

If I try to force a failover by shutting down the machine that I can access via 
the web interface, the other does not kick in. 

If I start the machine back up, it will cause the control of the cluster to 
flap between the two hosts. 

I've looked through the archives of this list for solutions, but none of them 
have worked so far -- NTP synchronization is fine, rebooting servers in a 
specific order doesn't seem to change anything, and I can even ping one machine 
from the other while all this madness is going on. 

Any thoughts or tips?

Nat Biggs





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from the latest Intel processors and coprocessors. See abstracts and register
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