maria-discuss team mailing list archive

[Nirbhay Choubey <nirbhay@xxxxxxxxxxx>]

Hi!

On Tue, Sep 30, 2014 at 8:42 AM, Benoit Panizzon <benoit.panizzon@xxxxxx>
wrote:

> Hello
>
> We would like to upgrade from 5.5.33a+maria-1~saucy to
> 5.5.39+maria-1~saucy on
> a running cluster without service interruption.
>
> So we took down one node, upgraded and restarted that instance...
>
> It fails to connect to the next gcomm server. MariaDB fails to start.
> We tested network connectivity, there is no issue we could detect.
>

It might be because of different galera library versions. Check out
scenario #2
http://nirbhay.in/2014/02/galera-connection-timed-out/

Best,
Nirbhay


> We downgraded back to 5.5.33a+maria-1~saucy and the connectivity issue
> disappeared.
>
> So my question here is: Is it possible to upgrade the cluster without
> interruption, or do we have to shut the whole cluster down, upgrade every
> node
> and then restart everything?
>
> Kind regards
>
> Benoit Panizzon
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