As a reminder, there's this one waiting ;-) https://tracker.ceph.com/issues/66641 Frédéric. PS: For the record, Andre's problem was related to the 'caps' (https://www.reddit.com/r/ceph/comments/1ffzfjc/ceph_rbd_werasure_coding/) ----- Le 15 Sep 24, à 18:02, Anthony D'Atri anthony.datri@xxxxxxxxx a écrit : > 100% agree. > > I’ve seen claims that SSDs synch quickly so 2 is enough. Such claims are > shortsighted. > > I have personally witnessed cases of device failures and OSD flaps / crashes at > just the wrong times resulted in no clear latest copy of PGs. > > There are cases where data loss isn’t catastrophic, but unless you’re sure, you > want either R3 for durability or EC to minimize space amp. A 2,2 profile, for > example. > >> On Sep 15, 2024, at 10:35 AM, Joachim Kraftmayer <joachim.kraftmayer@xxxxxxxxx> >> wrote: >> >> first comment on the replicated pools: >> the replication size for rbd pools of 2 is not suitable for production >> clusters. It is only a matter of time before you lose data. >> Joachim >> >> >> www.clyso.com >> >> Hohenzollernstr. 27, 80801 Munich >> >> Utting a. A. | HR: Augsburg | HRB: 25866 | USt. ID-Nr.: DE2754306 >> >> >> >>> Am Sa., 14. Sept. 2024 um 14:04 Uhr schrieb <przemek.kuczynski@xxxxxxxxx>: >>> >>> Here You have guide >>> >>> https://febryandana.xyz/posts/deploy-ceph-openstack-cluster/ >>> >>> in short >>> >>> ceph osd pool create images 128 >>> ceph osd pool set images size 2 >>> while [ $(ceph -s | grep creating -c) -gt 0 ]; do echo -n .;sleep 1; done >>> >>> ceph osd pool create volumes 128 >>> ceph osd pool set volumes size 2 >>> while [ $(ceph -s | grep creating -c) -gt 0 ]; do echo -n .;sleep 1; done >>> >>> ceph osd pool create vms 128 >>> ceph osd pool set vms size 2 >>> while [ $(ceph -s | grep creating -c) -gt 0 ]; do echo -n .;sleep 1; done >>> >>> ceph osd erasure-code-profile set ec-22-profile k=2 m=2 >>> crush-device-class=ssd >>> ceph osd erasure-code-profile ls >>> ceph osd erasure-code-profile get ec-22-profile >>> >>> ceph osd pool create images_data 128 128 erasure ec-22-profile >>> while [ $(ceph -s | grep creating -c) -gt 0 ]; do echo -n .;sleep 1; done >>> >>> ceph osd pool create volumes_data 128 128 erasure ec-22-profile >>> while [ $(ceph -s | grep creating -c) -gt 0 ]; do echo -n .;sleep 1; done >>> >>> ceph osd pool create vms_data 128 128 erasure ec-22-profile >>> while [ $(ceph -s | grep creating -c) -gt 0 ]; do echo -n .;sleep 1; done >>> >>> ceph osd pool ls detail >>> >>> ceph osd pool set images_data allow_ec_overwrites true >>> ceph osd pool set volumes_data allow_ec_overwrites true >>> ceph osd pool set vms_data allow_ec_overwrites true >>> >>> ceph osd pool application enable volumes rbd >>> ceph osd pool application enable images rbd >>> ceph osd pool application enable vms rbd >>> ceph osd pool application enable volumes_data rbd >>> ceph osd pool application enable images_data rbd >>> ceph osd pool application enable vms_data rbd >>> On ceph.conf You need put as below >>> >>> [client.glance] >>> rbd default data pool = images_data >>> >>> [client.cinder] >>> rbd default data pool = volumes_data >>> >>> [client.nova] >>> rbd default data pool = vms_data >>> for permission you probably also need add >>> >>> caps mon = "allow r, allow command \\"osd blacklist\\", allow command >>> \\"osd blocklist\\", allow command \\"blacklistop\\", allow command >>> \\"blocklistop\\"" >>> Newer versions might not work with blacklist anymore. >>> _______________________________________________ >>> ceph-users mailing list -- ceph-users@xxxxxxx >>> To unsubscribe send an email to ceph-users-leave@xxxxxxx >>> >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx >> To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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