Hi, on the other side, for example Zheng Yan, but also others, do not get tired to point out, that 3.10 is too old. But i agree, i wonder how 3.10 can be too old ( in general ) and at the same time being the standard kernel of redhat ( the company behind ceph ). Happy new year @ all ! :-) -- Mit freundlichen Gruessen / Best regards Oliver Dzombic IP-Interactive mailto:info@xxxxxxxxxxxxxxxxx Anschrift: IP Interactive UG ( haftungsbeschraenkt ) Zum Sonnenberg 1-3 63571 Gelnhausen HRB 93402 beim Amtsgericht Hanau Geschäftsführung: Oliver Dzombic Steuer Nr.: 35 236 3622 1 UST ID: DE274086107 Am 01.01.2017 um 10:25 schrieb Jun Hu: > I don't agree with this point. > > 3.10 kernel version is enough, becault Redhat ceph enterprise product is > running on Rhel 7 which is 3.10 kernel version too. > though redhat 3.10 kernel version is different from upstream kernel > 3.10 ; If you use Centos or Rhel Linux distribution as a ceph client , > it is not a problem. > > ------------------------------------------------------------------------ > Margin Hu > Love open source software > github: http://www.github.com/ > > mail: jhu_com@xxxxxxxxxxx > *From:* David Turner <mailto:david.turner@xxxxxxxxxxxxxxxx> > *Date:* 2017-01-01 01:31 > *To:* Wido den Hollander <mailto:wido@xxxxxxxx> > *CC:* ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx>; > Manuel Sopena Ballesteros <mailto:manuel.sb@xxxxxxxxxxxxx> > *Subject:* Re: linux kernel version for clients > > Correct me if I'm wrong, be t the kernel version is only a factor if > you are using the krbd driver, correct (mapping an rbd with the > kernel driver). If you were using Ceph-fuse, librbd, etc then the > version of the kernel on the client wouldn't matter. > > Sent from my iPhone > > > On Dec 31, 2016, at 3:23 AM, Wido den Hollander <wido@xxxxxxxx> wrote: > > > > > >> Op 31 december 2016 om 6:56 schreef Manuel Sopena Ballesteros > <manuel.sb@xxxxxxxxxxxxx>: > >> > >> > >> Hi, > >> > >> I have several questions regarding kernel running on client machines: > >> > >> > >> * Why is kernel 3.10 considered an old kernel to run ceph > clients? > >> > > > > Development in the Ceph world goes fast and 3.10 is a old kernel > in that case. If you check the release notes for the Linux kernel > you will see that there are a lot of changes. > > > >> * Which features are missing? > >> > > > > A lot, probably to much to sum up here. > > > >> * What would be the impact of running clients on > centos7.3 (kernel 3.10) compared to using a higher/recommended version? > >> > > > > Not able to access data, crashes on the client, performance > issues. All kinds of things. > > > > Just don't use the 3.10 kernel, try using a more recent kernel. > > > > Wido > > > >> Thank you very much > >> > >> Manuel > >> > >> NOTICE > >> Please consider the environment before printing this email. This > message and any attachments are intended for the addressee named and > may contain legally privileged/confidential/copyright information. > If you are not the intended recipient, you should not read, use, > disclose, copy or distribute this communication. If you have > received this message in error please notify us at once by return > email and then delete both messages. We accept no liability for the > distribution of viruses or similar in electronic communications. > This notice should not be removed. > >> > > ------------------------------------------------------------------------ > > <https://storagecraft.com> David Turner | Cloud Operations > Engineer | StorageCraft Technology Corporation > <https://storagecraft.com> > 380 Data Drive Suite 300 | Draper | Utah | 84020 > Office: 801.871.2760 | Mobile: 385.224.2943 > > ------------------------------------------------------------------------ > > If you are not the intended recipient of this message or received it > erroneously, please notify the sender and delete it, together with > any attachments, and be advised that any dissemination or copying of > this message is prohibited. > > ------------------------------------------------------------------------ > > _______________________________________________ > >> ceph-users mailing list > >> ceph-users@xxxxxxxxxxxxxx > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ > > ceph-users mailing list > > ceph-users@xxxxxxxxxxxxxx > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com