Re: Questions on Ultra-Monkey init

Norman Harman <[email protected]> wrote:
> I have 2 directors sending http/https traffic to 4 nodes (2 of the nodes
> are in fact the 2 directors.  4 total boxes.  The directors heartbeat
> over a second ethernet (cross over cable) and a serial cable.
> 
> Works fairly well, except failover seems flaky.  Sometimes not happening
> sometimes both directors listing nodes with ipvsadm.  And now within the
> last week there's a new problem that one director will start refusing
> connections but still seems alive over the serial. Or, at least the
> backup director would not takeover until I nixxed serial from config and
> restarted everything.
> 
> One thing I'm definitely unsure about is what services should be started
> via init scripts and what should not (I assume the others get started
> when one box takes over)
> Which of these should be started (from /etc/init.d):
>  ipvsadm
>  ldirectord
>  heartbeat

ipvsadm is run by ldirectord. So if you are using ldirectord
(which you should be), then you should not run ipvsadm from init.

ldirectord can be run either from init, or by listing it in
the haresources file if heartbeat is running (which it should be).
Its probably easiest to use the haresoruces method.

> Also, in ha.cf the listing of nodes should be just directors, right?
> # box 1,2 are directors box 1,2,3,4 are http/https cluster
> node  box1
> node  box2
> #node box3
> #node box4

Yes, just the directors.

-- 
Horms


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