[ale] Floating eth0:0 ( like old heartbeat )

[Lightner, Jeff]

I wrote init scripts to do float the IP between Postgres replication servers in a RHEL6 using the ip add and ip del commands.

I also wrote another script that will (via sudo) allow this to be bounced at command line by non-root users and also kills off any connections first.   (We found on manual failover that simply deleting the IP on one host and starting it on the other left connections “ESTABLISHED” (even though the interface was down) and that prevented traffic to the other host even though it brought the IP up.


From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of Chuck Payne
Sent: Monday, April 20, 2015 12:38 PM
To: Atlanta Linux Enthusiasts
Subject: Re: [ale] Floating eth0:0 ( like old heartbeat )

I use ip and a bash script that checks like every ten minutes.

On Mon, Apr 20, 2015 at 12:27 PM, Robert L. Harris <robert.l.harris at gmail.com<mailto:robert.l.harris at gmail.com>> wrote:

  Anyone know a very simple tool to manage a floating eth0:0 interface for failover type connectivity?  I used to use Heartbeat but they've gone and over-complicated it.  I don't want it starting services or changing anything else.  I'm about to re-write my own in perl again but if someone's already found something that might be quicker.

Robert


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