Bulk storage use case

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 5/10/14 12:43 , C?dric Lemarchand wrote:
> Hi Craig,
>
> Thanks, I really appreciate the well detailed response.
>
> I carefully note your advices, specifically about the CPU starvation 
> scenario, which as you said sounds scary.
>
> About IO, datas will be very resilient, in case of crash, loosing not 
> fully written objects will not be a problem (they will be re uploaded 
> later), so I think in this specific case, disabling journaling could 
> be a way to improve IO.
> How Ceph will handle that, are there caveats other than just loosing 
> objects that was in the data path when the crash occurs ? I know it 
> could sounds weird, but clients workflow could support such thing.
>
> Thanks !
>
> -- 
> C?dric Lemarchand
>
> Le 10 mai 2014 ? 04:30, Craig Lewis <clewis at centraldesktop.com 
> <mailto:clewis at centraldesktop.com>> a ?crit :

Disabling the journal does make sense in some cases, like all the data 
is a backup copy.

I don't know anything about how Ceph behaves in that setup.  Maybe 
somebody else can chime in?

-- 

*Craig Lewis*
Senior Systems Engineer
Office +1.714.602.1309
Email clewis at centraldesktop.com <mailto:clewis at centraldesktop.com>

*Central Desktop. Work together in ways you never thought possible.*
Connect with us Website <http://www.centraldesktop.com/>  | Twitter 
<http://www.twitter.com/centraldesktop>  | Facebook 
<http://www.facebook.com/CentralDesktop>  | LinkedIn 
<http://www.linkedin.com/groups?gid=147417>  | Blog 
<http://cdblog.centraldesktop.com/>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140510/8cdd8221/attachment.htm>


[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Ceph Dev]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux