On Thu, May 17, 2018 at 11:03 AM, Jorge Pinilla López <jorpilo@xxxxxxxxx> wrote: > Thanks for the info!, I absolutely agree that it should be documented > > Any further info about why journaling feature is so slow? Because everything is written twice: first to the journal and then to the actual data objects. journaling feature is disabled by default and shouldn't be enabled unless you are setting up rbd-mirror: http://docs.ceph.com/docs/master/rbd/rbd-mirroring/ Thanks, Ilya _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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