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Hi John!
I heard about Piranha, but I didn't find deeper information on this
software. For example how to configure it. Also the Red Hat Advanced Server
costs some dollars, but I should use open source software ...
Do you have some links about Piranha? Is Piranha under GPL, or can I use
this software only after purchasing the Red Hat Advanced Server?
Thanks,
Bye Gregor
----- Original Message -----
From: "John Mozurkewich" <JohnM@xxxxxxxxxxx>
To: <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Thursday, December 26, 2002 9:59 PM
Subject: RE: Server Application with Primary Server & Backup Server
> I have recently set this up (with help from Sébastien) using Piranha on a
pair of Pogo-Linux servers (running Redhat Advanced Server). The set-up
works well and it may be worth checking out Piranha.
>
> John M
>
> -----Original Message-----
> From: Peter Mueller [mailto:pmueller@xxxxxxxxxxxx]
> Sent: Thursday, December 26, 2002 3:26 PM
> To: 'lvs-users@xxxxxxxxxxxxxxxxxxxxxx'
> Subject: RE: Server Application with Primary Server & Backup Server
>
>
> Gregor,
>
> > 1. How can I trigger a failover between the primary server
> > and the backup
> > server?
> > Must I turn of heartbeat with /etc/init.d/heartbeat stop or
> > is ther another
> > availability to do this? (Could it be done with the Heartbeat API?)
>
> I asked the same question a while back and the response was to just
> stop/start the service.
>
> Not sure about the API, but hey that sounds like a reasonable thing for an
> API to do ;). Perhaps the heartbeat mailing list might provide a clue:
> http://marc.theaimsgroup.com/?l=linux-ha&r=1&w=2 <-- archive
> "
> send a message to linux-ha-subscribe@xxxxxx to subscribe to the list.
> send a message to linux-ha-unsubscribe@xxxxxx to unsubscribe
> "
>
> > 2. If the primary server is back again, a handover from the
> > backup server is
> > triggered. Is it possible to prevent this behaviour? Or are there some
> > reasons for doing this?
>
> This is the nice_failback setting in ha.cf. Having lerked on the mailing
> list @ linux-ha for a while I can tell you it seems the developers
recommend
> keeping this setting ON. Default is off..
>
> > Please write some of your experiences with heartbeat mon &
> > high availability
> > that could help me!
>
> It's worked good for me for 1.5 years. I use heartbeat + ldirectord + mon
> and have lots of flexibility. Perhaps keepalived (http://keepalived.org)
> might be worth looking into, maybe it fits your needs better. Also since
> you indicated you are using DB's in this setup check out drdb to help keep
> your disks in sync...
>
> > Thanks, a late merry christmas ;-) and a happy new year (for those who
> > celebrate this ...)
> > Gregor Goestl
>
> Cheers & same,
>
> Peter
>
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