I have the same setup, and my only issue is at the switch level with CTDB.
The IP does failover, however until I issue a ping from the interface ctdb
is connected to, the storage will not connect.
If i go to the host with the CTDB vip, and issue a ping from the interface
ctdb is on, everything works as described.
On Thu, Aug 6, 2015 at 5:18 PM, Nicolas Ecarnot <nicolas(a)ecarnot.net> wrote:
Hi Tim,
Nice to read that someone else is fighting with a similar setup :)
Le 06/08/2015 16:36, Tim Macy a écrit :
> Nicolas, I have the same setup dedicated physical system running engine
> on CentOS 6.6 three hosts running CentOS 7.1 with Gluster and KVM, and
> firewall is disabled on all hosts. I also followed the same documents
> to build my environment so I assume they are very similar. I have on
> occasion had the same errors and have also found that "ctdb rebalanceip
> <floating ip>" is the only way to resolve the problem.
>
Indeed, when I'm stopping/continuing my ctdb services, the main action is
a move of the vIP.
So we agree there is definitively something to dig there!
Either directly, either as a side effect.
I must admit I'd be glad to search further before following the second
part of your answer.
I intend to
> remove ctdb since it is not needed with the configuration we are
> running. CTDB is only needed for hosted engine on a floating NFS mount,
>
And in a less obvious manner, it also allows to gently remove a host from
the vIP managers pool, before removing it on the gluster layer.
Not a great advantage, but worth mentionning.
so you should be able change the gluster storage domain mount paths to
> "localhost:<name>". The only thing that has prevented me from
making
> this change is that my environment is live with running VM's. Please
> let me know if you go this route.
>
I'm more than interested to choose this way, if :
- I find no time to investigate the floating vIP issue
- I can simplify this setup
- This can lead to increased perf
About the master storage domain path, should I use only pure gluster and
completely forget about NFS?
--
Nicolas ECARNOT
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