You could randomize your ceph.conf settings for filestore_merge_threshold and filestore_split_multiple. It's not pretty, but it would spread things out. You could even do this as granularly as you'd like down to the individual OSDs while only having a single ceph.conf file to maintain.
I would probably go the route of manually splitting your subfolders, though. I've been using this [1] script for some time to do just that. I tried to make it fairly environment agnostic so people would have an easier time implementing it for their needs. [1] https://gist.github.com/drakonstein/cb76c7696e65522ab0e699b7ea1ab1c4 On Sun, Apr 1, 2018 at 10:42 AM shadow_lin <shadow_...@163.com> wrote: > Thanks. > Is there any workaround for 10.2.10 to avoid all osd start spliting at the > same time? > > 2018-04-01 > ------------------------------ > shadowlin > > ------------------------------ > > *发件人：*Pavan Rallabhandi <prallabha...@walmartlabs.com> > *发送时间：*2018-04-01 22:39 > *主题：*Re: [ceph-users] Does jewel 10.2.10 support > filestore_split_rand_factor? > *收件人：*"shadow_lin"<shadow_...@163.com>,"ceph-users"< > ceph-users@lists.ceph.com> > *抄送：* > > > > No, it is supported in the next version of Jewel > http://tracker.ceph.com/issues/22658 > > > > *From: *ceph-users <ceph-users-boun...@lists.ceph.com> on behalf of > shadow_lin <shadow_...@163.com> > *Date: *Sunday, April 1, 2018 at 3:53 AM > *To: *ceph-users <ceph-users@lists.ceph.com> > *Subject: *EXT: [ceph-users] Does jewel 10.2.10 support > filestore_split_rand_factor? > > > > Hi list, > > The document page of jewel has filestore_split_rand_factor config but I > can't find the config by using 'ceph daemon osd.x config'. > > > > ceph version 10.2.10 (5dc1e4c05cb68dbf62ae6fce3f0700e4654fdbbe) > > ceph daemon osd.0 config show|grep split > "mon_osd_max_split_count": "32", > "journaler_allow_split_entries": "true", > "mds_bal_split_size": "10000", > "mds_bal_split_rd": "25000", > "mds_bal_split_wr": "10000", > "mds_bal_split_bits": "3", > "filestore_split_multiple": "4", > "filestore_debug_verify_split": "false", > > > > 2018-04-01 > ------------------------------ > > shadow_lin > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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