Hello,
I would think of two options
- If admin decides to switch to backend, it should not be prevented and the backend moves to 'backend'
- periodic (hourly) checking (IMHO not configurable and always run), checking being the same mechanism as 'auto'
- in-sync->backend
- not-in-sync it keeps referral-on-update
I think that the delay option is not necessary. If periodic checking fails to move to referral-on-update, it will log a msg saying which consumer knows higher csn and it will be the admin task to make sure to push those updates.
For internal operation, I do not think to any simple solution. The mechanism in your design is a real progress from what is now. Let's wait for CU cases to see if we need to also address internal ops.
regards
thierry
On 10/07/2016 05:58 PM, Ludwig Krispenz wrote:
there is a problem not yet covered in the proposal: setting the backend to "referral-on-update" until the topology is in sync prevents to ealry client updates, but what to do about internal updates, eg passwordpolicy attributes.
I have a wild idea, but maybe someone has a suggestion on how to handle this
thanks,
Ludwig
On 10/05/2016 05:51 PM, Ludwig Krispenz wrote:
On 09/30/2016 02:15 AM, Noriko Hosoi wrote:
sorry if I was not clear enough, I will update the doc, but let me try to explain hereHi Ludwig,
On 09/29/2016 05:43 AM, Ludwig Krispenz wrote:
This is the initial proposal, thanks for your feedback
http://www.port389.org/docs/389ds/design/delay-accepting-updates-after-init.html
Please help me understanding the design...
I'm having a bit hard time to figure out the relationship/dependency among these 3 config parameters.
no. the primary parameter is: nsslapd-replica-accept-updates-state
nsslapd-replica-accept-updates-state: on/off
nsslapd-replica-accept-updates-delay: -1/0/n
nsslapd-replica-accept-updates-auto: on/off
Are they independent or dependent? Do they take any combinations -- 2 * 3 * 2 == 12.
If it is off, the other determine when it should be set to on again (without an explicite change by an admin).
if it is on, the other two will not be used
independent of auto on/off the "delay" defines if(>=0) the state will be reset to on and when
the "auto" param determines if the server should in the defined "delay" it should try to detect if it is in sync and switch to "on" earlier.
that is a good question, there is the option to choose the default by what is "my" recommendation (auto: on, delay: n) or what is backward compatible (no change in default behaviour: auto off, delay: 0)There are 12 different behaviors? (assuming n for -delay is one case :)
What is your recommendation to the customers? I mean, what is the default setting?
For instance, if -auto is "on", when an online init is executed on the master, the scenario is automatically kicked in?
Thanks,
--noriko
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