Re: Update 0.80.7 to 0.80.8 -- Restart Order

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debian deb packages update are not restarting services.

(So, I think it should be the same for ubuntu).

you need to restart daemons in this order:

-monitor
-osd
-mds
-rados gateway

http://ceph.com/docs/master/install/upgrading-ceph/


----- Mail original -----
De: "Stephen Jahl" <stephenjahl@xxxxxxxxx>
À: "Gregory Farnum" <greg@xxxxxxxxxxx>
Cc: "Daniel Schneller" <daniel.schneller@xxxxxxxxxxxxxxxx>, "ceph-users" <ceph-users@xxxxxxxxxxxxxx>
Envoyé: Mardi 3 Février 2015 17:55:18
Objet: Re:  Update 0.80.7 to 0.80.8 -- Restart Order

I just went through and updated my Ubuntu 14.04 80.7 cluster to 80.8 this morning. The package updates looked like they triggered _starts_ for some services (ceph-all, ceph-msd-all), but not restarts. ceph-mon and ceph-osd services were _not_ restarted, allowing me to restart them in the order I desired. 

-Steve 

On Mon, Feb 2, 2015 at 11:28 AM, Gregory Farnum < greg@xxxxxxxxxxx > wrote: 


Oh, yeah, that'll hurt on a small cluster more than a large one. I'm not sure how much it matters, sorry. 
On Mon, Feb 2, 2015 at 8:18 AM Daniel Schneller < daniel.schneller@xxxxxxxxxxxxxxxx > wrote: 

BQ_BEGIN



On 2015-02-02 16:09:27 +0000, Gregory Farnum said: 




That said, for a point release it shouldn't matter what order stuff gets restarted in. I wouldn't worry about it. :) 




That is good to know. One follow-up then: If the packets trigger restarts, they will most probably do so for *all* daemons virtually at once, right? So that means that all OSDs on that host will go down at the same time. That sounds like a not so good idea, taking 25% of the cluster down at the same time (provided I go host by host)? 





Daniel 


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