Re: [Devil-linux-develop] Keepalived

[Rudner, B. <br...@ba...>]

Hi Bruce,
Both of them are individual packages.
Currently I have heartbeat and keepalived on my ISOs, since I wanted to switch configurations in a few seconds.

The main reason for me to switch was that I now have more than 200 virtual IP addresses on my boxes and heartbeat (with ldirectord) needs up to 60 seconds on my box to bring the ips up/down in case of failovers.

Greetings,
Björn

-----Ursprüngliche Nachricht-----
Von: Bruce Smith [mailto:bw...@re...]
Gesendet: Montag, 26. Oktober 2009 15:35
An: dev...@li...
Betreff: Re: [Devil-linux-develop] Keepalived

Do we need to replace heartbeat with keepalived, or can they both be
on the CD allowing individuals to choose between the two?

 - BS


> Hi DL-Developers,
>
>
> I have recently switched from heartbeat to keepalived for my LVS-director
> software on the latest DL.
>
>
> From the homepage:
>
> What is Keepalived ?
>
> The main goal of the keepalived project is to add a strong & robust
> keepalive facility to the Linux Virtual Server project. This project is
> written in C with multilayer TCP/IP stack checks. Keepalived implements a
> framework based on three family checks : Layer3, Layer4 & Layer5/7. This
> framework gives the daemon the ability of checking a LVS server pool states.
> When one of the server of the LVS server pool is down, keepalived informs
> the linux kernel via a setsockopt call to remove this server entrie from the
> LVS topology. In addition keepalived implements an independent VRRPv2 stack
> to handle director failover. So in short keepalived is a userspace daemon
> for LVS cluster nodes healthchecks and LVS directors failover.
>
>
>
> IMHO: keepalived is the easier choice if one would only have some virtual ip
> addresses with some realservers watched and there is no need to set up some
> BIG cluster with harddisk failovers ore stonith-devices.
>
>
>
> Keepalived works great with conntrackd; conntrackd already provides a bunch
> of sample-scripts in its /etc-directory to get things working.
>
>
>
> If you are interested in including keepalived in the DL distribution I could
> check in the needed scripts.
>
>
>
> But one of you with FTP-Access would need to put
> http://www.keepalived.org/software/keepalived-1.1.19.tar.gz into the src.
>
>
>
>
> Mit freundlichen Grüßen/Kind regards,
>
> Björn Rudner
> Systems Engineer

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