Can you store your data in different buckets? linyunfan Adrian Nicolae <adrian.nicolae@xxxxxxxxxx> 于2020年5月19日周二 下午3:32写道： > > Hi, > > I have the following Ceph Mimic setup : > > - a bunch of old servers with 3-4 SATA drives each (74 OSDs in total) > > - index/leveldb is stored on each OSD (so no SSD drives, just SATA) > > - the current usage is : > > GLOBAL: > SIZE AVAIL RAW USED %RAW USED > 542 TiB 105 TiB 437 TiB 80.67 > POOLS: > NAME ID USED %USED MAX > AVAIL OBJECTS > .rgw.root 1 1.1 KiB 0 26 > TiB 4 > default.rgw.control 2 0 B 0 26 > TiB 8 > default.rgw.meta 3 20 MiB 0 26 > TiB 75357 > default.rgw.log 4 0 B 0 26 > TiB 4271 > default.rgw.buckets.data 5 290 TiB 85.05 51 TiB > 78067284 > default.rgw.buckets.non-ec 6 0 B 0 26 > TiB 0 > default.rgw.buckets.index 7 0 B 0 26 > TiB 603008 > > - rgw_override_bucket_index_max_shards = 16. Clients are accessing RGW > via Swift, not S3. > > - the replication schema is EC 4+2. > > We are using this Ceph cluster as a secondary storage for another > storage infrastructure (which is more expensive) and we are offloading > cold data (big files with a low number of downloads/reads from our > customer). This way we can lower the TCO . So most of the files are big > ( a few GB at least). > > So far Ceph is doing well considering that I don't have big > expectations from current hardware. I'm a bit worried however that we > have 78 M objects with max_shards=16 and we will probably reach 100M in > the next few months. Do I need a increase the max shards to ensure the > stability of the cluster ? I read that storing more than 1 M of objects > in a single bucket can lead to OSD's flapping or having io timeouts > during deep-scrub or even to have ODS's failures due to the leveldb > compacting all the time if we have a large number of DELETEs. > > Any advice would be appreciated. > > > Thank you, > > Adrian Nicolae > > > > _______________________________________________ > 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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