how to upgrade the failover pair?

[Алексей Перов]

You mean 4.1.1 and 4.3.5 use the same failover protocol and can talk to 
each other without any issue?


31.05.2018 12:41, Simon Hobson пишет:
> Aleksey Perov <a.perov at sura.ru> wrote:
> 
>> The draft plan is as follows:
>>
>> - stop the secondary;
>> - turn the primary into partner-down;
>> - reinstall the secondary;
>> - wait until the primary reclaims all addresses in all pools;
>> - stop the primary;
>> - copy leases file from primary to secondary;
>> - start the secondary in partner-down mode;
>> - reinstall the primary;
>> - turn the secondary into normal mode;
>> - start the primary.
>>
>> Is anything wrong here?
> 
> Isn't the simplest - provided they are using the same level of failover protocol - to simply start up a clean upgraded secondary and allow it to transfer leases from the primary ? So :
> 
> Stop one partner, put the remaining one into partner down state.
> Create new upgraded clean partner.
> Start up new partner and allow the pair to synchronise.
> 
> Repeat for the other partner.
> 
> 
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-- 
Aleksey