Re: [lvs-users] Ldirectord not working with heartbeat, works standalone

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [lvs-users] Ldirectord not working with heartbeat, works standalone
From: Bruce Richardson <itsbruce@xxxxxxxxxxx>
Date: Tue, 10 Feb 2009 12:48:02 +0000
On Tue, Feb 10, 2009 at 01:28:36PM +0100, Sebastian Vieira wrote:
> But yes, i agree, if you want to eliminate this 'lost' period the best way
> would be to have ldirectord running on both nodes at all times. An argument
> that i thought of "heartbeat makes sure ldirectord is running" is moot if
> you have puppet handle the service state.

Thinking further on this subject, I can see a good reason for NOT having
the sync daemon fully replicate server state; it's entirely possible
that different directors will not have the same view of the network if
there is disruption (that is, one may be able to reach one set of real
servers while another may see a slightly - or radically - different
set).  Synchonizing connection information is harmless in that scenario
but forcing all the service tables to be in lockstep would be bad.


Those who cast the votes decide nothing.  Those who count the
votes decide everything. -- Joseph Stalin

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