Question for upgrading

[John Capo]

On Thu, December 13, 2018 13:25, Egoitz Aurrekoetxea wrote:
> Hi again!
>
>
> Else as a simplication way can you replicate any manner a 2.3 with some
> newer version?. At least in manual mode (not rolling)?.

The replication protocol in 2.4 is not compatible wit 2.3.

There is no easy way.  I'm rsync'ing one account at a time between 2.3 and 2.4 with IMAP/POP and LMTP access disabled, followed by a reconstruct, and then enabling IMAP/POP and LMTP access.

Many terrabytes to go.

You could also look at imapsync but its slow.

>
> Cheers.
>
>
> ---
>
>
> EGOITZ AURREKOETXEA
> Departamento de sistemas
> 944 209 470
> Parque Tecnológico. Edificio 103
> 48170 Zamudio (Bizkaia)
> egoitz at sarenet.es www.sarenet.es [1] Antes de imprimir este correo electrónico piense si es
> necesario hacerlo.
>
> El 13-12-2018 16:52, Egoitz Aurrekoetxea escribió:
>
>
>> Good afternoon,
>>
>>
>> I was trying to upgrade part of our Cyrus imap installation, concretely that one consisting in
>> still 2.3. I was planning to set up Cyrus 3.0. I have seen all works properly except for the
>> unexpunge command because as someone stated here, a reconstruct -V max was needed.The problem
>> is that this reconstruct command, takes ages and I'm not able to keep the service offline so
>> many time. So I have been thinking in the following scenario :
>>
>> - Cyrus 2.3 master -> Cyrus 2.4 slave
>>
>>
>> Get this 2.4 slave ready and set it as master. But here comes my first doubt. Does the 2.4
>> replication work with the 2.3 replication?. Can in this pair, both (the 2.3 and the 2.4) be
>> both master and slave?. I mean to switch roles in the pair. Make one become master and the
>> other slave and  vice versa?.
>>
>> Let's think now Cyrus 2.4 is ready and working.
>>
>>
>> - Now, I would set up a new 3.0 slave. I know 2.4 could replicate with 3.0. So I would get the
>> 3.0 ready and then set 3.0 as master. Can in this pair both the 2.4 and 3.0 be master and
>> slave?. Meaning again to the same role switching commented before... to make one to be master
>> and the other slave or vice versa....
>>
>> I'l will end up with 2 3.0 master and slave... but I need to trace the path...
>>
>>
>> Does anyone see any other way?.
>>
>>
>> Best regards,
>>
>>
>> -
>>
>>
>> --
>>
>>
>> EGOITZ AURREKOETXEA
>> Departamento de sistemas
>> 944 209 470
>> Parque Tecnológico. Edificio 103
>> 48170 Zamudio (Bizkaia)
>> egoitz at sarenet.es www.sarenet.es [1] Antes de imprimir este correo electrónico piense si es
>> necesario hacerlo. ----
>> Cyrus Home Page: http://www.cyrusimap.org/
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