> Op 1 april 2017 om 16:02 schreef John Petrini <jpetrini@xxxxxxxxxxxx>: > > > Hello, > > I'm also curious about the impact of clock drift. We see the same on both > of our clusters despite trying various NTP servers including our own local > servers. Ultimately we just ended up adjusting our monitoring to be less > sensitive to it since the clock drift always resolves on its own. Is this a > dangerous practice? It can cause the Monitors to not being able to elect. Very far clock drifts can even cause cephx problems. So yes, it can lead to downtime of your cluster. The 50ms clock drift it allows by default should be enough and NTP should keep it below that. Wido > > ___ > > John Petrini > > NOC Systems Administrator // *CoreDial, LLC* // coredial.com > // [image: > Twitter] <https://twitter.com/coredial> [image: LinkedIn] > <http://www.linkedin.com/company/99631> [image: Google Plus] > <https://plus.google.com/104062177220750809525/posts> [image: Blog] > <http://success.coredial.com/blog> > Hillcrest I, 751 Arbor Way, Suite 150, Blue Bell PA, 19422 > *P: *215.297.4400 x232 // *F: *215.297.4401 // *E: * > jpetrini@xxxxxxxxxxxx > > > Interested in sponsoring PartnerConnex 2017? Learn more. > <http://success.coredial.com/partnerconnex-2017-sponsorship> > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. Any review, retransmission, dissemination or other use of, or > taking of any action in reliance upon, this information by persons or > entities other than the intended recipient is prohibited. If you received > this in error, please contact the sender and delete the material from any > computer. > > On Sat, Apr 1, 2017 at 9:12 AM, mj <lists@xxxxxxxxxxxxx> wrote: > > > Hi, > > > > On 04/01/2017 02:10 PM, Wido den Hollander wrote: > > > >> You could try the chrony NTP daemon instead of ntpd and make sure all > >> MONs are peers from each other. > >> > > I understand now what that means. I have set it up according to your > > suggestion. > > > > Curious to see how this works out, thanks! > > > > > > MJ > > _______________________________________________ > > 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
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