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Re: Different mysql version on cluster nodes
Posted by: Mikael Ronström
Date: July 20, 2005 05:19PM

Hi,
If you change the order to
1,2,3,4,9,10,11,12,5,6,7,8 as Jonathan suggested then you'll be fine.

Rgrds Mikael


Ilya Shilov wrote:
> I have no such reason... :)
> But as you noticed rightly this situation will
> occur during upgrade process...
>
> Then my next question is:
>
> What is the algorithm of upgrading nodes in
> cluster without loosing its availability?
> 1. Stop mgmt-node
> 2. Upgrade mgmt-node
> 3. Start mgmt-node
> 4. Repeat steps 1-3 for every mgtm-node in
> cluster
> 5. Stop SQL-node
> 6. Upgrade SQL-node
> 7. Start SQL-node
> 8. Repeat steps 5-7 for every SQL-node in cluster
> 9. Stop NDB-node
> 10. Upgrade NDB-node
> 11. Start NDB-node
> 12. Repeat steps 9-11 for every NDB-node in
> cluster
>
> Or may be there are some tricks during this
> process?
>
> Thanks for answer!

Mikael Ronstrom
Senior Software Architect, MySQL AB
My blog: http://mikaelronstrom.blogspot.com

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Re: Different mysql version on cluster nodes
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