[Linux-HA] Best effort HA

[Andrew Beekhof]

On 5/29/07, Kai Bjørnstad <kai at scali.com> wrote:
> Hi all
>
> Back in action after doing some other stuff....
>
> I went back to basics this time, trying out the 2.0.9 version from SuSe,
> http://software.opensuse.org/download/server:/ha-clustering/SLES_9/i586/
>
> And I am getting even more confused:
>
> I set up a configuration with one IP and three LSB-services. All the
> LSB-services are set to be colocated with the IP.
>
> Now I list them like this:
> lsb_dhcpd       (lsb:dhcpd):    Started dl360g3-2
> lsb_conserver   (lsb:conserver):        Started dl360g3-2
> lsb_scaproxyd   (lsb:scaproxyd):        Started dl360g3-2
> ip_172.19.5.200 (heartbeat::ocf:IPaddr):        Started dl360g3-2
>
> Now, if I corrupt the lsb_conserver service, the resource just gets status
> failed and nothing happens (no failover, nothing).

this isn't the default behavior but its possible to make the crm do this.

what does your configuration look like these days?  its really hard to
make any comment without seeing it.

if you see this happen again, run "cibadmin -Ql" and attach the result

> I then restart everything (including heartbeat) and get everything back up
> again. Then i corrupt the lsb_dhcpd service. Now suddenly the services fail
> over to my backup node.
>
> The rules set for the two lsb services are exactly the same. The only
> difference is the order they are listed in the CIB. This can't be correct??
>
> I also tried to corrupt the lsb_dhcpd service on my backup node (after a
> failover). This leads to all my services (and the IP) going down.....

as above - no config == no comment

logs would be nice too

>
>
> I am starting to think that my best-effort configuration just isn't
> possible ??
>
> Does anyone have an best-effort example configuration?
>
> What version of Heartbeat should I use?
>
> Cheers
> Kai
>
> --
> Kai R. Bjørnstad
> Senior Software Engineer
> dir. +47 22 62 89 43
> mob. +47 99 57 79 11
> tel. +47 22 62 89 50
> fax. +47 22 62 89 51
> kai.b at scali.com
>
> Olaf Helsets vei 6
> N0621 Oslo, Norway
>
> Scali - www.scali.com
> Scaling the Linux Datacenter
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>