[Freeipa-devel] [PATCH 0032] Remove dangling RUVs even if replicas are offline

[Ludwig Krispenz]

On 05/19/2016 08:02 AM, Stanislav Laznicka wrote:
> On 05/18/2016 04:44 PM, Petr Vobornik wrote:
>> On 05/18/2016 04:36 PM, Stanislav Laznicka wrote:
>>> There's no ticket for this patch but as there was a fix to 389-ds
>>> mentioned in https://fedorahosted.org/freeipa/ticket/5396, the TODO
>>> section in clean_dangling_ruvs could be removed.
>>>
>> What about using
>>    'replica-force-cleaning':'yes',
>>
>> every time?
>>
>> Is there a drawback which we would like to avoid?
>>
> The DS website mentions two possible risks
> - possible loss of changes on deleted replica should these have not 
> been reflected to some other replicas
this is a theoretical concern that there might be changes from the 
replica to be removed which are not yet on all servers, but to me the 
problem that cleaning ruvs hangs because replicas cannot be reached is 
the worse scenario.
> - if some offline replica comes back online, it may re-pollute the 
> RUVs back
>
> I'm not sure of the probability of the second scenario, in my rather 
> simple environment the re-pollution did not happen.
there have been fixes in 389-ds to prevent the repollution, so it should 
no longer happen.

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