On Sun, Nov 4, 2018 at 11:59 PM Wei Jin <wjin.cn@xxxxxxxxx> wrote: > > Hi, Jason, > > I have a question about rbd mirroring. When enable mirroring, we observed that there are a lot of objects prefix with journal_data, thus it consumes a lot of disk space. > > When will these journal objects be deleted? And are there any parameters to accelerate it? > Thanks. > Journal data objects should be automatically deleted when the journal is trimmed beyond the position of the object. If you run "rbd journal status --image <image-name>", you should be able to see the minimum in-use set and the current active set for new journal entries: $ rbd --cluster cluster1 journal status --image image1 minimum_set: 7 active_set: 8 registered clients: [id=, commit_position=[positions=[[object_number=33, tag_tid=2, entry_tid=49153], [object_number=32, tag_tid=2, entry_tid=49152], [object_number=35, tag_tid=2, entry_tid=49151], [object_number=34, tag_tid=2, entry_tid=49150]]], state=connected] [id=81672c30-d735-46d4-a30a-53c221954d0e, commit_position=[positions=[[object_number=30, tag_tid=2, entry_tid=48034], [object_number=29, tag_tid=2, entry_tid=48033], [object_number=28, tag_tid=2, entry_tid=48032], [object_number=31, tag_tid=2, entry_tid=48031]]], state=connected] $ rados --cluster cluster1 --pool rbd ls | grep journal_data | sort journal_data.1.1029b4577f90.28 journal_data.1.1029b4577f90.29 journal_data.1.1029b4577f90.30 journal_data.1.1029b4577f90.31 journal_data.1.1029b4577f90.32 journal_data.1.1029b4577f90.33 journal_data.1.1029b4577f90.34 journal_data.1.1029b4577f90.35 <......> $ rbd --cluster cluster1 journal status --image image1 minimum_set: 8 active_set: 8 registered clients: [id=, commit_position=[positions=[[object_number=33, tag_tid=2, entry_tid=49153], [object_number=32, tag_tid=2, entry_tid=49152], [object_number=35, tag_tid=2, entry_tid=49151], [object_number=34, tag_tid=2, entry_tid=49150]]], state=connected] [id=81672c30-d735-46d4-a30a-53c221954d0e, commit_position=[positions=[[object_number=33, tag_tid=2, entry_tid=49153], [object_number=32, tag_tid=2, entry_tid=49152], [object_number=35, tag_tid=2, entry_tid=49151], [object_number=34, tag_tid=2, entry_tid=49150]]], state=connected] $ rados --cluster cluster1 --pool rbd ls | grep journal_data | sort journal_data.1.1029b4577f90.32 journal_data.1.1029b4577f90.33 journal_data.1.1029b4577f90.34 journal_data.1.1029b4577f90.35 -- Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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