[lvs-users] Why do Weights Change by Themselves?

Robinson, Eric eric.robinson at psmnv.com
Thu Mar 26 08:59:11 GMT 2009


I've got ldirectord logs in /var/log, but they are all 0 bytes. My
ldirectord.cg contains these entries:

logfile="/var/log/ldirectord.log"
logfile="local0"

ldirectord is managed by heartbeat, so I'm not sure how to change its
debug level on the fly without messing with existing connections. 

Which brings up another point. I notice that my load balancer computers
BOTH have the following in rc.local:

/sbin/ipvsadm --start-daemon master
/sbin/ipvsadm --start-daemon backup

Both daemons are running on both computers. That's contrary to what the
man page seems to indicate, but then maybe it's correct for a heartbeat
cluster?

--
Eric Robinson


-----Original Message-----
From: lvs-users-bounces at linuxvirtualserver.org
[mailto:lvs-users-bounces at linuxvirtualserver.org] On Behalf Of Graeme
Fowler
Sent: Thursday, March 26, 2009 1:32 AM
To: LinuxVirtualServer.org users mailing list.
Subject: Re: [lvs-users] Why do Weights Change by Themselves?

On Thu, 2009-03-26 at 01:26 -0700, Robinson, Eric wrote:
> I've been using lvs+ldirectord for a while now. I've observed on many 
> occasions that weights sometimes seem to change spontaneously.

Nothing in a computer is ever spontaneous, unless it's broken. Or
overclocked ;-)

Anyway: you'll need to be looking in, or turning up the level of, your
logs. I suspect something, somewhere, is interacting with ldirectord (it
may be ldirectord itself) and is fiddling with the weights in normal
operation.

Can you see if anything is logged, and if not consider turning up the
log level?

Graeme


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