Upgrading 1.1pre14 nodes to 1.1pre15 in an existing mesh

[Etienne Dechamps]

On 24 April 2018 at 20:43, Nirmal Thacker <nirmalthacker at gmail.com> wrote:

> I have a Tinc cluster of about 100 nodes, and they are all running tinc
> 1.1pre14.
>
> I'd like to upgrade to tinc 1.1pre15.
>
> Is there a suggested mechanism to do this while keeping the cluster up?
> For instance can I simply automate the installation of tinc 1.1pre15 on
> each node and reload the existing configuration using 'tinc reload'
>

AFAICT "tinc reload" will not restart your process, so you will still be
running 1.1pre14. You will need to restart tincd to upgrade to 1.1pre15.
This will cause a brief interruption of connectivity (around one second,
typically, depending on setup) for the node that you're restarting.


> Will the temporary state of having a mix set of 1.1pre14 and 1.1pre15
> nodes cause any instabilities?
>

Not that I know of - 1.1pre14 and 1.1pre15 should be compatible with each
other.
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