Hello,
2014-05-28 14:21 GMT+02:00 Josh Fisher <jfis...@pvct.com>:
> On 5/24/2014 2:58 AM, Radosław Korzeniewski wrote:
>
> Hello,
>
> 2014-05-23 17:30 GMT+02:00 Josh Fisher <jfis...@pvct.com>:
>
>> At failover, there simply is no way for the node taking over the primary
>> role to determine the state of the interface on the failing node. It is
>> up to software to handle errors caused by the interface going up and
>> down and reopen sockets. Bacula could be made more cluster friendly,
>>
>
> When you deploy bacula-fd on the cluster service then it will be a fully
> cluster friendly solution. I do not understand why do you suggest something
> different.
>
>
>> (which btw would also make it more robust with regards to handling
>> network problems),
>
>
> It is the different problem. Yes, bacula could be a more robust
> regarding network problems.
>
>
>> but as it is, the only safe way I see to do this is
>> to let the CRM start/stop bacula-fd dependent on the cluster IP
>> resource. Another instance of bacula-fd can separately handle backing up
>> any non-cluster resources on the node if needed.
>>
>
> Yes.
>
> In real world bacula-fd can successfully handle both cluster and
> non-cluster resources. I've deployed a lot of real clusters this way
> including Linux, Unix and Windows solutions. You can ignore that, no
> problem.
>
>
> So you are running fd from init on both cluster nodes, yes?
>
Yes.
> And listening on all interfaces?
>
Yes.
> But only one of the nodes can be listening on the cluster IP.
>
It is how clusters are designed.
> I can see that failover could work as long as fd on both nodes is
> listening on all interfaces. I don't see how this could work if fd must
> listen on specific interfaces
>
:)
> and listening on all interfaces is not desired for other reasons.
>
You can limit access to other interfaces with host-based firewall.
best regards
--
Radosław Korzeniewski
rados...@korzeniewski.net
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