Re: [ceph-users] Monitor upgrade issue when running "ceph osd pool set ..." commands

[Loic Dachary <loic@dachary.org>]

On 19/11/2013 03:19, Gregory Farnum wrote:
> All,
> 
> We've just discovered an issue that impacts some users running any of
> the "ceph osd pool set" family of commands while some of their
> monitors are running Dumpling and some are running Emperor. Doing so
> can result in the commands being interpreted incorrectly and your
> cluster being accidentally misconfigured (eg, accidentally setting
> extremely large pg_num values).
> 
> The solution is simple: don't run "ceph osd pool set" commands while
> your monitors are running different versions. We will have a point
> release out in the next few days to resolve this issue. For more
> information, you can refer to http://tracker.ceph.com/issues/6796.
> 
> Relatedly, I'm proud to announce this issue was discovered by our
> automated upgrade testing and we have not seen reports of it from any
> users. Thank you to our dedicated Q/A developers and testers! :)

Hi Greg,

This is great news ! From the point of view of my compan ( and I suspect any company which is not Inktank ), the completness of the integration tests ( do upgrade tests count as integration tests ? ) means both a more robust product but also a framework to diagnose and fix problems that are otherwise difficult to track down independently.

Cheers

> -Greg
> Software Engineer #42 @ http://inktank.com | http://ceph.com
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-- 
Loïc Dachary, Artisan Logiciel Libre
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