[Freeipa-users] changing the default for changelog trimmimg

[Petr Spacek]

On 3.7.2015 11:45, thierry bordaz wrote:
> On 06/30/2015 03:54 PM, Ludwig Krispenz wrote:
>> Hi,
>>
>> 389-ds allows to configure the max size of the replication changelog either
>> by setting a maximum record number or a maximum age of changes.
>> freeIPA does not use this setting. In the context of ticket
>> https://fedorahosted.org/freeipa/ticket/5086 we are discussing to change the
>> default to
>> enable changelog trimming.
>>
>> Does anyone already use changlog trimming or is there a  scenario where you
>> rely on all changes being available ?
>>
>> Thanks for your feedback,
>> Ludwig
>>
> Hello,
> 
>    I think it is reasonable to set nsds5ReplicaPurgeDelay and
>    nsslapd-changelogmaxage to similar value.
> 
>    When a replica (master or consumer) is down for some time and is
>    restarted, both attribute express the ability to get the replica in
>    sync with the rest of the topology.
>    It can work (and likely will) if
>    nsds5ReplicaPurgeDelay<nsslapd-changelogmaxage but there are always
>    corner cases that can lead to problem (like entries that diverge).
> 
>    Currently purgedelay=7days (default) and changelogmaxage is infinite
>    and changing purgedelay=infinite impacts the size of the entries.

I wonder if these values could/should be controlled by topology plugin. Does
it make sense to have different values on different replicas?

-- 
Petr^2 Spacek