Re: heartbeat question

I have done some further reading on LVS/HB and it's just a collection of 
rpms that need to be installed and that's basically it. Does anyone know 
how UltraMonkey compares with HAProxy?

Thanks

Simon Horman wrote:
> On Sun, Mar 28, 2010 at 06:34:09PM -0400, Artyom Khmelnitsky wrote:
>   
>> Hello,
>>
>> We are thinking of utilizing heartbeat for one of our customers. I have 
>> been reading up on the ultramonkey website, but was not able to find an 
>> answer to my question. How does heartbeat choose the backend node? Is it 
>> done randomly like with rrDNS or does it monitor the webserver's load 
>> and choose the one with the lowest?
>>     
>
> The real-server selection is done by LVS, which is configured
> by ldirectord through the ldirectord.cf file. They key is
> the choice of scheduler. Typically ultramonkey uses the wlc scheduler,
> which basically chooses the scheduler that has the lowest number of
> connections.
>
> A separate project, feedbackd, looked at the idea of monitoring
> the load on real-servers and by tweaking their weights in
> the LVS table it was able to send more connections to less loaded
> servers.
>
> Is there a particular scenario you have in mind which calls
> for scheduling based on server-load?
>
>
>   
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