We have a two-site cluster with OSDs and pools localised in two locations. I was now looking into setting up a rados gateway with the following properties: - Pools should be EC pools whenever possible. - Pools for specific buckets should be localised at OSDs on only one of the two locations (meaning the crush root must *not* be "default"). Unfortunately, I seem to be unable to find documentation on how to configure pools used by RGW in such detail. It seems that the RGW daemon and radosgw-admin create pools on the fly, using some global settings that don't allow any a-priory fine-tuning of the type described above. I looked here: - http://docs.ceph.com/docs/mimic/radosgw/placement/ - http://docs.ceph.com/docs/mimic/radosgw/pools/ - http://docs.ceph.com/docs/mimic/radosgw/multisite/ I would be most grateful about answers (or links) to the following questions: - Which pools are used by RGW (where can I find a complete list)? - Which of these pools must be replicated and which can be EC pools? - Are there sizing guides and performance considerations (replication type, device class, best practices)? - If creating all of these pools empty, with desired properties and prior to RGW startup, will the RGW daemon work properly? - If some pools need to be created by the RGW daemon, how does one specify details like * crush root * EC profile / replication rule * device class * etc. I would like to avoid any manual a-posteriori operations like editing crush rules to adjust locations of pools, etc. Best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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