Re: should I increase the amount of PGs?

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Are those PGs backfilling due to splitting or due to balancing?
If it's the former, I don't think there's a way to pause them with
upmap or any other trick.

-- dan

On Tue, Mar 30, 2021 at 2:07 PM Boris Behrens <bb@xxxxxxxxx> wrote:
>
> One week later the ceph is still balancing.
> What worries me like hell is the %USE on a lot of those OSDs. Does ceph
> resolv this on it's own? We are currently down to 5TB space in the cluster.
> Rebalancing single OSDs doesn't work well and it increases the "missplaced
> objects".
>
> I thought about letting upmap do some rebalancing. Anyone know if this is a
> good idea? Or if I should bite my nails an wait as I am the headache of my
> life.
> [root@s3db1 ~]# ceph osd getmap -o om; osdmaptool om --upmap out.txt
> --upmap-pool eu-central-1.rgw.buckets.data --upmap-max 10; cat out.txt
> got osdmap epoch 321975
> osdmaptool: osdmap file 'om'
> writing upmap command output to: out.txt
> checking for upmap cleanups
> upmap, max-count 10, max deviation 5
>  limiting to pools eu-central-1.rgw.buckets.data ([11])
> pools eu-central-1.rgw.buckets.data
> prepared 10/10 changes
> ceph osd rm-pg-upmap-items 11.209
> ceph osd rm-pg-upmap-items 11.253
> ceph osd pg-upmap-items 11.7f 79 88
> ceph osd pg-upmap-items 11.fc 53 31 105 78
> ceph osd pg-upmap-items 11.1d8 84 50
> ceph osd pg-upmap-items 11.47f 94 86
> ceph osd pg-upmap-items 11.49c 44 71
> ceph osd pg-upmap-items 11.553 74 50
> ceph osd pg-upmap-items 11.6c3 66 63
> ceph osd pg-upmap-items 11.7ad 43 50
>
> ID  CLASS WEIGHT    REWEIGHT SIZE    RAW USE DATA     OMAP     META
>  AVAIL    %USE  VAR  PGS STATUS TYPE NAME
>  -1       795.42548        - 795 TiB 626 TiB  587 TiB   82 GiB 1.4 TiB  170
> TiB 78.64 1.00   -        root default
>  56   hdd   7.32619  1.00000 7.3 TiB 6.4 TiB  6.4 TiB  684 MiB  16 GiB  910
> GiB 87.87 1.12 129     up         osd.56
>  67   hdd   7.27739  1.00000 7.3 TiB 6.4 TiB  6.4 TiB  582 MiB  16 GiB  865
> GiB 88.40 1.12 115     up         osd.67
>  79   hdd   3.63689  1.00000 3.6 TiB 3.2 TiB  432 GiB  1.9 GiB     0 B  432
> GiB 88.40 1.12  63     up         osd.79
>  53   hdd   7.32619  1.00000 7.3 TiB 6.5 TiB  6.4 TiB  971 MiB  22 GiB  864
> GiB 88.48 1.13 114     up         osd.53
>  51   hdd   7.27739  1.00000 7.3 TiB 6.5 TiB  6.4 TiB  734 MiB  15 GiB  837
> GiB 88.77 1.13 120     up         osd.51
>  73   hdd  14.55269  1.00000  15 TiB  13 TiB   13 TiB  1.8 GiB  39 GiB  1.6
> TiB 88.97 1.13 246     up         osd.73
>  55   hdd   7.32619  1.00000 7.3 TiB 6.5 TiB  6.5 TiB  259 MiB  15 GiB  825
> GiB 89.01 1.13 118     up         osd.55
>  70   hdd   7.27739  1.00000 7.3 TiB 6.5 TiB  6.5 TiB  291 MiB  16 GiB  787
> GiB 89.44 1.14 119     up         osd.70
>  42   hdd   3.73630  1.00000 3.7 TiB 3.4 TiB  3.3 TiB  685 MiB 8.2 GiB  374
> GiB 90.23 1.15  60     up         osd.42
>  94   hdd   3.63869  1.00000 3.6 TiB 3.3 TiB  3.3 TiB  132 MiB 7.7 GiB  345
> GiB 90.75 1.15  64     up         osd.94
>  25   hdd   3.73630  1.00000 3.7 TiB 3.4 TiB  3.3 TiB  3.2 MiB 8.1 GiB  352
> GiB 90.79 1.15  53     up         osd.25
>  31   hdd   7.32619  1.00000 7.3 TiB 6.7 TiB  6.6 TiB  223 MiB  15 GiB  690
> GiB 90.80 1.15 117     up         osd.31
>  84   hdd   7.52150  1.00000 7.5 TiB 6.8 TiB  6.6 TiB  159 MiB  16 GiB  699
> GiB 90.93 1.16 121     up         osd.84
>  82   hdd   3.63689  1.00000 3.6 TiB 3.3 TiB  332 GiB  1.0 GiB     0 B  332
> GiB 91.08 1.16  59     up         osd.82
>  89   hdd   7.52150  1.00000 7.5 TiB 6.9 TiB  6.6 TiB  400 MiB  15 GiB  670
> GiB 91.29 1.16 126     up         osd.89
>  33   hdd   3.73630  1.00000 3.7 TiB 3.4 TiB  3.3 TiB  382 MiB 8.6 GiB  327
> GiB 91.46 1.16  66     up         osd.33
>  90   hdd   7.52150  1.00000 7.5 TiB 6.9 TiB  6.6 TiB  338 MiB  15 GiB  658
> GiB 91.46 1.16 112     up         osd.90
> 105   hdd   3.63869  0.89999 3.6 TiB 3.3 TiB  3.3 TiB  206 MiB 8.1 GiB  301
> GiB 91.91 1.17  56     up         osd.105
>  66   hdd   7.27739  0.95000 7.3 TiB 6.7 TiB  6.7 TiB  322 MiB  16 GiB  548
> GiB 92.64 1.18 121     up         osd.66
>  46   hdd   7.27739  1.00000 7.3 TiB 6.8 TiB  6.7 TiB  316 MiB  16 GiB  536
> GiB 92.81 1.18 119     up         osd.46
>
> Am Di., 23. März 2021 um 19:59 Uhr schrieb Boris Behrens <bb@xxxxxxxxx>:
>
> > Good point. Thanks for the hint. I changed it for all OSDs from 5 to 1
> > *crossing finger*
> >
> > Am Di., 23. März 2021 um 19:45 Uhr schrieb Dan van der Ster <
> > dan@xxxxxxxxxxxxxx>:
> >
> >> I see. When splitting PGs, the OSDs will increase is used space
> >> temporarily to make room for the new PGs.
> >> When going from 1024->2048 PGs, that means that half of the objects from
> >> each PG will be copied to a new PG, and then the previous PGs will have
> >> those objects deleted.
> >>
> >> Make sure osd_max_backfills is set to 1, so that not too many PGs are
> >> moving concurrently.
> >>
> >>
> >>
> >> On Tue, Mar 23, 2021, 7:39 PM Boris Behrens <bb@xxxxxxxxx> wrote:
> >>
> >>> Thank you.
> >>> Currently I do not have any full OSDs (all <90%) but I keep this in mind.
> >>> What worries me is the ever increasing %USE metric (it went up from
> >>> around 72% to 75% in three hours). It looks like there is comming a lot of
> >>> data (there comes barely new data at the moment), but I think this might
> >>> have to do with my "let's try to increase the PGs to 2048". I hope that
> >>> ceph begins to split the old PGs into new ones and removes the old PGs.
> >>>
> >>> ID  CLASS WEIGHT    REWEIGHT SIZE    RAW USE DATA    OMAP    META
> >>> AVAIL    %USE  VAR  PGS STATUS TYPE NAME
> >>>  -1       795.42548        - 795 TiB 597 TiB 556 TiB  88 GiB  1.4 TiB
> >>>  198 TiB 75.12 1.00   -        root default
> >>>
> >>> Am Di., 23. März 2021 um 19:21 Uhr schrieb Dan van der Ster <
> >>> dan@xxxxxxxxxxxxxx>:
> >>>
> >>>> While you're watching things, if an OSD is getting too close for
> >>>> comfort to the full ratio, you can temporarily increase it, e.g.
> >>>>     ceph osd set-full-ratio 0.96
> >>>>
> >>>> But don't set that too high -- you can really break an OSD if it gets
> >>>> 100% full (and then can't delete objects or whatever...)
> >>>>
> >>>> -- dan
> >>>>
> >>>> On Tue, Mar 23, 2021 at 7:17 PM Boris Behrens <bb@xxxxxxxxx> wrote:
> >>>> >
> >>>> > Ok, then I will try to reweight the most filled OSDs to .95 and see
> >>>> if this helps.
> >>>> >
> >>>> > Am Di., 23. März 2021 um 19:13 Uhr schrieb Dan van der Ster <
> >>>> dan@xxxxxxxxxxxxxx>:
> >>>> >>
> >>>> >> Data goes to *all* PGs uniformly.
> >>>> >> Max_avail is limited by the available space on the most full OSD --
> >>>> >> you should pay close attention to those and make sure they are moving
> >>>> >> in the right direction (decreasing!)
> >>>> >>
> >>>> >> Another point -- IMHO you should aim to get all PGs active+clean
> >>>> >> before you add yet another batch of new disks. While there are PGs
> >>>> >> backfilling, your osdmaps are accumulating on the mons and osds --
> >>>> >> this itself will start to use a lot of space, and active+clean is the
> >>>> >> only way to trim the old maps.
> >>>> >>
> >>>> >> -- dan
> >>>> >>
> >>>> >> On Tue, Mar 23, 2021 at 7:05 PM Boris Behrens <bb@xxxxxxxxx> wrote:
> >>>> >> >
> >>>> >> > So,
> >>>> >> > doing nothing and wait for the ceph to recover?
> >>>> >> >
> >>>> >> > In theory there should be enough disk space (more disks arriving
> >>>> tomorrow), but I fear that there might be an issue, when the backups get
> >>>> exported over night to this s3. Currently the max_avail lingers around 13TB
> >>>> and I hope, that the data will go to other PGs than the ones that are
> >>>> currently on filled OSDs.
> >>>> >> >
> >>>> >> >
> >>>> >> >
> >>>> >> > Am Di., 23. März 2021 um 18:58 Uhr schrieb Dan van der Ster <
> >>>> dan@xxxxxxxxxxxxxx>:
> >>>> >> >>
> >>>> >> >> Hi,
> >>>> >> >>
> >>>> >> >> backfill_toofull is not a bad thing when the cluster is really
> >>>> full
> >>>> >> >> like yours. You should expect some of the most full OSDs to
> >>>> eventually
> >>>> >> >> start decreasing in usage, as the PGs are moved to the new OSDs.
> >>>> Those
> >>>> >> >> backfill_toofull states should then resolve themselves as the OSD
> >>>> >> >> usage flattens out.
> >>>> >> >> Keep an eye on the usage of the backfill_full and nearfull OSDs
> >>>> though
> >>>> >> >> -- if they do eventually go above the full_ratio (95% by default),
> >>>> >> >> then writes to those OSDs would stop.
> >>>> >> >>
> >>>> >> >> But if on the other hand you're suffering from lots of slow ops or
> >>>> >> >> anything else visible to your users, then you could try to take
> >>>> some
> >>>> >> >> actions to slow down the rebalancing. Just let us know if that's
> >>>> the
> >>>> >> >> case and we can see about changing osd_max_backfills, some
> >>>> weights or
> >>>> >> >> maybe using the upmap-remapped tool.
> >>>> >> >>
> >>>> >> >> -- Dan
> >>>> >> >>
> >>>> >> >> On Tue, Mar 23, 2021 at 6:07 PM Boris Behrens <bb@xxxxxxxxx>
> >>>> wrote:
> >>>> >> >> >
> >>>> >> >> > Ok, I should have listened to you :)
> >>>> >> >> >
> >>>> >> >> > In the last week we added more storage but the issue got worse
> >>>> instead.
> >>>> >> >> > Today I realized that the PGs were up to 90GB (bytes column in
> >>>> ceph pg ls said 95705749636), and the balance kept mentioning the 2048 PGs
> >>>> for this pool. We were at 72% utilization (ceph osd df tree, first line)
> >>>> for our cluster and I increased the PGs to 2048.
> >>>> >> >> >
> >>>> >> >> > Now I am in a world of trouble.
> >>>> >> >> > The space in the cluster went down, I am at 45% misplaced
> >>>> objects, and we already added 20x4TB disks just to not go down completly.
> >>>> >> >> >
> >>>> >> >> > The utilization is still going up and the overall free space in
> >>>> the cluster seems to go down. This is what my ceph status looks like and
> >>>> now I really need help to get that thing back to normal:
> >>>> >> >> > [root@s3db1 ~]# ceph status
> >>>> >> >> >   cluster:
> >>>> >> >> >     id:     dca79fff-ffd0-58f4-1cff-82a2feea05f4
> >>>> >> >> >     health: HEALTH_WARN
> >>>> >> >> >             4 backfillfull osd(s)
> >>>> >> >> >             17 nearfull osd(s)
> >>>> >> >> >             37 pool(s) backfillfull
> >>>> >> >> >             13 large omap objects
> >>>> >> >> >             Low space hindering backfill (add storage if this
> >>>> doesn't resolve itself): 570 pgs backfill_toofull
> >>>> >> >> >
> >>>> >> >> >   services:
> >>>> >> >> >     mon: 3 daemons, quorum
> >>>> ceph-s3-mon1,ceph-s3-mon2,ceph-s3-mon3 (age 44m)
> >>>> >> >> >     mgr: ceph-mgr2(active, since 15m), standbys: ceph-mgr3,
> >>>> ceph-mgr1
> >>>> >> >> >     mds:  3 up:standby
> >>>> >> >> >     osd: 110 osds: 110 up (since 28m), 110 in (since 28m); 1535
> >>>> remapped pgs
> >>>> >> >> >     rgw: 3 daemons active (eu-central-1, eu-msg-1, eu-secure-1)
> >>>> >> >> >
> >>>> >> >> >   task status:
> >>>> >> >> >
> >>>> >> >> >   data:
> >>>> >> >> >     pools:   37 pools, 4032 pgs
> >>>> >> >> >     objects: 116.23M objects, 182 TiB
> >>>> >> >> >     usage:   589 TiB used, 206 TiB / 795 TiB avail
> >>>> >> >> >     pgs:     160918554/348689415 objects misplaced (46.150%)
> >>>> >> >> >              2497 active+clean
> >>>> >> >> >              779  active+remapped+backfill_wait
> >>>> >> >> >              538  active+remapped+backfill_wait+backfill_toofull
> >>>> >> >> >              186  active+remapped+backfilling
> >>>> >> >> >              32   active+remapped+backfill_toofull
> >>>> >> >> >
> >>>> >> >> >   io:
> >>>> >> >> >     client:   27 MiB/s rd, 69 MiB/s wr, 497 op/s rd, 153 op/s wr
> >>>> >> >> >     recovery: 1.5 GiB/s, 922 objects/s
> >>>> >> >> >
> >>>> >> >> > Am Di., 16. März 2021 um 09:34 Uhr schrieb Boris Behrens <
> >>>> bb@xxxxxxxxx>:
> >>>> >> >> >>
> >>>> >> >> >> Hi Dan,
> >>>> >> >> >>
> >>>> >> >> >> my EC profile look very "default" to me.
> >>>> >> >> >> [root@s3db1 ~]# ceph osd erasure-code-profile ls
> >>>> >> >> >> default
> >>>> >> >> >> [root@s3db1 ~]# ceph osd erasure-code-profile get default
> >>>> >> >> >> k=2
> >>>> >> >> >> m=1
> >>>> >> >> >> plugin=jerasure
> >>>> >> >> >> technique=reed_sol_van
> >>>> >> >> >>
> >>>> >> >> >> I don't understand the ouput, but the balancing get worse over
> >>>> night:
> >>>> >> >> >>
> >>>> >> >> >> [root@s3db1 ~]# ceph-scripts/tools/ceph-pool-pg-distribution
> >>>> 11
> >>>> >> >> >> Searching for PGs in pools: ['11']
> >>>> >> >> >> Summary: 1024 PGs on 84 osds
> >>>> >> >> >>
> >>>> >> >> >> Num OSDs with X PGs:
> >>>> >> >> >> 15: 8
> >>>> >> >> >> 16: 7
> >>>> >> >> >> 17: 6
> >>>> >> >> >> 18: 10
> >>>> >> >> >> 19: 1
> >>>> >> >> >> 32: 10
> >>>> >> >> >> 33: 4
> >>>> >> >> >> 34: 6
> >>>> >> >> >> 35: 8
> >>>> >> >> >> 65: 5
> >>>> >> >> >> 66: 5
> >>>> >> >> >> 67: 4
> >>>> >> >> >> 68: 10
> >>>> >> >> >> [root@s3db1 ~]# ceph-scripts/tools/ceph-pg-histogram
> >>>> --normalize --pool=11
> >>>> >> >> >> # NumSamples = 84; Min = 4.12; Max = 5.09
> >>>> >> >> >> # Mean = 4.553355; Variance = 0.052415; SD = 0.228942; Median
> >>>> 4.561608
> >>>> >> >> >> # each ∎ represents a count of 1
> >>>> >> >> >>     4.1244 -     4.2205 [     8]: ∎∎∎∎∎∎∎∎
> >>>> >> >> >>     4.2205 -     4.3166 [     6]: ∎∎∎∎∎∎
> >>>> >> >> >>     4.3166 -     4.4127 [    11]: ∎∎∎∎∎∎∎∎∎∎∎
> >>>> >> >> >>     4.4127 -     4.5087 [    10]: ∎∎∎∎∎∎∎∎∎∎
> >>>> >> >> >>     4.5087 -     4.6048 [    11]: ∎∎∎∎∎∎∎∎∎∎∎
> >>>> >> >> >>     4.6048 -     4.7009 [    19]: ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
> >>>> >> >> >>     4.7009 -     4.7970 [     6]: ∎∎∎∎∎∎
> >>>> >> >> >>     4.7970 -     4.8931 [     8]: ∎∎∎∎∎∎∎∎
> >>>> >> >> >>     4.8931 -     4.9892 [     4]: ∎∎∎∎
> >>>> >> >> >>     4.9892 -     5.0852 [     1]: ∎
> >>>> >> >> >> [root@s3db1 ~]# ceph osd df tree | sort -nk 17 | tail
> >>>> >> >> >>  14   hdd   3.63689  1.00000 3.6 TiB 2.9 TiB 724 GiB   19 GiB
> >>>>    0 B 724 GiB 80.56 1.07  56     up         osd.14
> >>>> >> >> >>  19   hdd   3.68750  1.00000 3.7 TiB 3.0 TiB 2.9 TiB  466 MiB
> >>>> 7.9 GiB 708 GiB 81.25 1.08  53     up         osd.19
> >>>> >> >> >>   4   hdd   3.63689  1.00000 3.6 TiB 3.0 TiB 698 GiB  703 MiB
> >>>>    0 B 698 GiB 81.27 1.08  48     up         osd.4
> >>>> >> >> >>  24   hdd   3.63689  1.00000 3.6 TiB 3.0 TiB 695 GiB  640 MiB
> >>>>    0 B 695 GiB 81.34 1.08  46     up         osd.24
> >>>> >> >> >>  75   hdd   3.68750  1.00000 3.7 TiB 3.0 TiB 2.9 TiB  440 MiB
> >>>> 8.1 GiB 704 GiB 81.35 1.08  48     up         osd.75
> >>>> >> >> >>  71   hdd   3.68750  1.00000 3.7 TiB 3.0 TiB 3.0 TiB  7.5 MiB
> >>>> 8.0 GiB 663 GiB 82.44 1.09  47     up         osd.71
> >>>> >> >> >>  76   hdd   3.68750  1.00000 3.7 TiB 3.1 TiB 3.0 TiB  251 MiB
> >>>> 9.0 GiB 617 GiB 83.65 1.11  50     up         osd.76
> >>>> >> >> >>  33   hdd   3.73630  1.00000 3.7 TiB 3.1 TiB 3.0 TiB  399 MiB
> >>>> 8.1 GiB 618 GiB 83.85 1.11  55     up         osd.33
> >>>> >> >> >>  35   hdd   3.73630  1.00000 3.7 TiB 3.1 TiB 3.0 TiB  317 MiB
> >>>> 8.8 GiB 617 GiB 83.87 1.11  50     up         osd.35
> >>>> >> >> >>  34   hdd   3.73630  1.00000 3.7 TiB 3.2 TiB 3.1 TiB  451 MiB
> >>>> 8.7 GiB 545 GiB 85.75 1.14  54     up         osd.34
> >>>> >> >> >>
> >>>> >> >> >> Am Mo., 15. März 2021 um 17:23 Uhr schrieb Dan van der Ster <
> >>>> dan@xxxxxxxxxxxxxx>:
> >>>> >> >> >>>
> >>>> >> >> >>> Hi,
> >>>> >> >> >>>
> >>>> >> >> >>> How wide are your EC profiles? If they are really wide, you
> >>>> might be
> >>>> >> >> >>> reaching the limits of what is physically possible. Also, I'm
> >>>> not sure
> >>>> >> >> >>> that upmap in 14.2.11 is very smart about *improving*
> >>>> existing upmap
> >>>> >> >> >>> rules for a given PG, in the case that a PG already has an
> >>>> upmap-items
> >>>> >> >> >>> entry but it would help the distribution to add more mapping
> >>>> pairs to
> >>>> >> >> >>> that entry. What this means, is that it might sometimes be
> >>>> useful to
> >>>> >> >> >>> randomly remove some upmap entries and see if the balancer
> >>>> does a
> >>>> >> >> >>> better job when it replaces them.
> >>>> >> >> >>>
> >>>> >> >> >>> But before you do that, I re-remembered that looking at the
> >>>> total PG
> >>>> >> >> >>> numbers is not useful -- you need to check the PGs per OSD
> >>>> for the
> >>>> >> >> >>> eu-central-1.rgw.buckets.data pool only.
> >>>> >> >> >>>
> >>>> >> >> >>> We have a couple tools that can help with this:
> >>>> >> >> >>>
> >>>> >> >> >>> 1. To see the PGs per OSD for a given pool:
> >>>> >> >> >>>
> >>>> https://github.com/cernceph/ceph-scripts/blob/master/tools/ceph-pool-pg-distribution
> >>>> >> >> >>>
> >>>> >> >> >>>     E.g.: ./ceph-pool-pg-distribution 11  # to see the
> >>>> distribution of
> >>>> >> >> >>> your eu-central-1.rgw.buckets.data pool.
> >>>> >> >> >>>
> >>>> >> >> >>>     The output looks like this on my well balanced clusters:
> >>>> >> >> >>>
> >>>> >> >> >>> # ceph-scripts/tools/ceph-pool-pg-distribution 15
> >>>> >> >> >>> Searching for PGs in pools: ['15']
> >>>> >> >> >>> Summary: 256 pgs on 56 osds
> >>>> >> >> >>>
> >>>> >> >> >>> Num OSDs with X PGs:
> >>>> >> >> >>>  13: 16
> >>>> >> >> >>>  14: 40
> >>>> >> >> >>>
> >>>> >> >> >>>     You should expect a trimodal for your cluster.
> >>>> >> >> >>>
> >>>> >> >> >>> 2. You can also use another script from that repo to see the
> >>>> PGs per
> >>>> >> >> >>> OSD normalized to crush weight:
> >>>> >> >> >>>     ceph-scripts/tools/ceph-pg-histogram --normalize --pool=15
> >>>> >> >> >>>
> >>>> >> >> >>>    This might explain what is going wrong.
> >>>> >> >> >>>
> >>>> >> >> >>> Cheers, Dan
> >>>> >> >> >>>
> >>>> >> >> >>>
> >>>> >> >> >>> On Mon, Mar 15, 2021 at 3:04 PM Boris Behrens <bb@xxxxxxxxx>
> >>>> wrote:
> >>>> >> >> >>> >
> >>>> >> >> >>> > Absolutly:
> >>>> >> >> >>> > [root@s3db1 ~]# ceph osd df tree
> >>>> >> >> >>> > ID  CLASS WEIGHT    REWEIGHT SIZE    RAW USE DATA     OMAP
> >>>>    META    AVAIL    %USE  VAR  PGS STATUS TYPE NAME
> >>>> >> >> >>> >  -1       673.54224        - 674 TiB 496 TiB  468 TiB   97
> >>>> GiB 1.2 TiB  177 TiB 73.67 1.00   -        root default
> >>>> >> >> >>> >  -2        58.30331        -  58 TiB  42 TiB   38 TiB  9.2
> >>>> GiB  99 GiB   16 TiB 72.88 0.99   -            host s3db1
> >>>> >> >> >>> >  23   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  714
> >>>> MiB  25 GiB  3.7 TiB 74.87 1.02 194     up         osd.23
> >>>> >> >> >>> >  69   hdd  14.55269  1.00000  15 TiB  11 TiB   11 TiB  1.6
> >>>> GiB  40 GiB  3.4 TiB 76.32 1.04 199     up         osd.69
> >>>> >> >> >>> >  73   hdd  14.55269  1.00000  15 TiB  11 TiB   11 TiB  1.3
> >>>> GiB  34 GiB  3.8 TiB 74.15 1.01 203     up         osd.73
> >>>> >> >> >>> >  79   hdd   3.63689  1.00000 3.6 TiB 2.4 TiB  1.3 TiB  1.8
> >>>> GiB     0 B  1.3 TiB 65.44 0.89  47     up         osd.79
> >>>> >> >> >>> >  80   hdd   3.63689  1.00000 3.6 TiB 2.4 TiB  1.3 TiB  2.2
> >>>> GiB     0 B  1.3 TiB 65.34 0.89  48     up         osd.80
> >>>> >> >> >>> >  81   hdd   3.63689  1.00000 3.6 TiB 2.4 TiB  1.3 TiB  1.1
> >>>> GiB     0 B  1.3 TiB 65.38 0.89  47     up         osd.81
> >>>> >> >> >>> >  82   hdd   3.63689  1.00000 3.6 TiB 2.5 TiB  1.1 TiB  619
> >>>> MiB     0 B  1.1 TiB 68.46 0.93  41     up         osd.82
> >>>> >> >> >>> > -11        50.94173        -  51 TiB  37 TiB   37 TiB  3.5
> >>>> GiB  98 GiB   14 TiB 71.90 0.98   -            host s3db10
> >>>> >> >> >>> >  63   hdd   7.27739  1.00000 7.3 TiB 5.3 TiB  5.3 TiB  647
> >>>> MiB  14 GiB  2.0 TiB 72.72 0.99  94     up         osd.63
> >>>> >> >> >>> >  64   hdd   7.27739  1.00000 7.3 TiB 5.3 TiB  5.2 TiB  668
> >>>> MiB  14 GiB  2.0 TiB 72.23 0.98  93     up         osd.64
> >>>> >> >> >>> >  65   hdd   7.27739  1.00000 7.3 TiB 5.2 TiB  5.2 TiB  227
> >>>> MiB  14 GiB  2.1 TiB 71.16 0.97 100     up         osd.65
> >>>> >> >> >>> >  66   hdd   7.27739  1.00000 7.3 TiB 5.4 TiB  5.4 TiB  313
> >>>> MiB  14 GiB  1.9 TiB 74.25 1.01  92     up         osd.66
> >>>> >> >> >>> >  67   hdd   7.27739  1.00000 7.3 TiB 5.1 TiB  5.1 TiB  584
> >>>> MiB  14 GiB  2.1 TiB 70.63 0.96  96     up         osd.67
> >>>> >> >> >>> >  68   hdd   7.27739  1.00000 7.3 TiB 5.2 TiB  5.2 TiB  720
> >>>> MiB  14 GiB  2.1 TiB 71.72 0.97 101     up         osd.68
> >>>> >> >> >>> >  70   hdd   7.27739  1.00000 7.3 TiB 5.1 TiB  5.1 TiB  425
> >>>> MiB  14 GiB  2.1 TiB 70.59 0.96  97     up         osd.70
> >>>> >> >> >>> > -12        50.99052        -  51 TiB  38 TiB   37 TiB  2.1
> >>>> GiB  97 GiB   13 TiB 73.77 1.00   -            host s3db11
> >>>> >> >> >>> >  46   hdd   7.27739  1.00000 7.3 TiB 5.6 TiB  5.6 TiB  229
> >>>> MiB  14 GiB  1.7 TiB 77.05 1.05  97     up         osd.46
> >>>> >> >> >>> >  47   hdd   7.27739  1.00000 7.3 TiB 5.1 TiB  5.1 TiB  159
> >>>> MiB  13 GiB  2.2 TiB 70.00 0.95  89     up         osd.47
> >>>> >> >> >>> >  48   hdd   7.27739  1.00000 7.3 TiB 5.2 TiB  5.2 TiB  279
> >>>> MiB  14 GiB  2.1 TiB 71.82 0.97  98     up         osd.48
> >>>> >> >> >>> >  49   hdd   7.27739  1.00000 7.3 TiB 5.5 TiB  5.4 TiB  276
> >>>> MiB  14 GiB  1.8 TiB 74.90 1.02  95     up         osd.49
> >>>> >> >> >>> >  50   hdd   7.27739  1.00000 7.3 TiB 5.2 TiB  5.2 TiB  336
> >>>> MiB  14 GiB  2.0 TiB 72.13 0.98  93     up         osd.50
> >>>> >> >> >>> >  51   hdd   7.27739  1.00000 7.3 TiB 5.7 TiB  5.6 TiB  728
> >>>> MiB  15 GiB  1.6 TiB 77.76 1.06  98     up         osd.51
> >>>> >> >> >>> >  72   hdd   7.32619  1.00000 7.3 TiB 5.3 TiB  5.3 TiB  147
> >>>> MiB  13 GiB  2.0 TiB 72.75 0.99  95     up         osd.72
> >>>> >> >> >>> > -37        58.55478        -  59 TiB  44 TiB   44 TiB  4.4
> >>>> GiB 122 GiB   15 TiB 75.20 1.02   -            host s3db12
> >>>> >> >> >>> >  19   hdd   3.68750  1.00000 3.7 TiB 2.9 TiB  2.9 TiB  454
> >>>> MiB 8.2 GiB  780 GiB 79.35 1.08  53     up         osd.19
> >>>> >> >> >>> >  71   hdd   3.68750  1.00000 3.7 TiB 3.0 TiB  2.9 TiB  7.1
> >>>> MiB 8.0 GiB  734 GiB 80.56 1.09  47     up         osd.71
> >>>> >> >> >>> >  75   hdd   3.68750  1.00000 3.7 TiB 2.9 TiB  2.9 TiB  439
> >>>> MiB 8.2 GiB  777 GiB 79.43 1.08  48     up         osd.75
> >>>> >> >> >>> >  76   hdd   3.68750  1.00000 3.7 TiB 3.0 TiB  3.0 TiB  241
> >>>> MiB 8.9 GiB  688 GiB 81.77 1.11  50     up         osd.76
> >>>> >> >> >>> >  77   hdd  14.60159  1.00000  15 TiB  11 TiB   11 TiB  880
> >>>> MiB  30 GiB  3.6 TiB 75.44 1.02 201     up         osd.77
> >>>> >> >> >>> >  78   hdd  14.60159  1.00000  15 TiB  10 TiB   10 TiB 1015
> >>>> MiB  28 GiB  4.2 TiB 71.26 0.97 193     up         osd.78
> >>>> >> >> >>> >  83   hdd  14.60159  1.00000  15 TiB  11 TiB   11 TiB  1.4
> >>>> GiB  30 GiB  3.8 TiB 73.76 1.00 203     up         osd.83
> >>>> >> >> >>> >  -3        58.49872        -  58 TiB  42 TiB   36 TiB  8.2
> >>>> GiB  89 GiB   17 TiB 71.71 0.97   -            host s3db2
> >>>> >> >> >>> >   1   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  3.2
> >>>> GiB  37 GiB  3.7 TiB 74.58 1.01 196     up         osd.1
> >>>> >> >> >>> >   3   hdd   3.63689  1.00000 3.6 TiB 2.3 TiB  1.3 TiB  566
> >>>> MiB     0 B  1.3 TiB 64.11 0.87  50     up         osd.3
> >>>> >> >> >>> >   4   hdd   3.63689  1.00000 3.6 TiB 2.9 TiB  771 GiB  695
> >>>> MiB     0 B  771 GiB 79.30 1.08  48     up         osd.4
> >>>> >> >> >>> >   5   hdd   3.63689  1.00000 3.6 TiB 2.4 TiB  1.2 TiB  482
> >>>> MiB     0 B  1.2 TiB 66.51 0.90  49     up         osd.5
> >>>> >> >> >>> >   6   hdd   3.63689  1.00000 3.6 TiB 2.3 TiB  1.3 TiB  1.8
> >>>> GiB     0 B  1.3 TiB 64.00 0.87  42     up         osd.6
> >>>> >> >> >>> >   7   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  639
> >>>> MiB  26 GiB  4.0 TiB 72.44 0.98 192     up         osd.7
> >>>> >> >> >>> >  74   hdd  14.65039  1.00000  15 TiB  10 TiB   10 TiB  907
> >>>> MiB  26 GiB  4.2 TiB 71.32 0.97 193     up         osd.74
> >>>> >> >> >>> >  -4        58.49872        -  58 TiB  43 TiB   36 TiB   34
> >>>> GiB  85 GiB   16 TiB 72.69 0.99   -            host s3db3
> >>>> >> >> >>> >   2   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  980
> >>>> MiB  26 GiB  3.8 TiB 74.36 1.01 203     up         osd.2
> >>>> >> >> >>> >   9   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  8.4
> >>>> GiB  33 GiB  3.9 TiB 73.51 1.00 186     up         osd.9
> >>>> >> >> >>> >  10   hdd  14.65039  1.00000  15 TiB  10 TiB   10 TiB  650
> >>>> MiB  26 GiB  4.2 TiB 71.64 0.97 201     up         osd.10
> >>>> >> >> >>> >  12   hdd   3.63689  1.00000 3.6 TiB 2.3 TiB  1.3 TiB  754
> >>>> MiB     0 B  1.3 TiB 64.17 0.87  44     up         osd.12
> >>>> >> >> >>> >  13   hdd   3.63689  1.00000 3.6 TiB 2.8 TiB  813 GiB  2.4
> >>>> GiB     0 B  813 GiB 78.17 1.06  58     up         osd.13
> >>>> >> >> >>> >  14   hdd   3.63689  1.00000 3.6 TiB 2.9 TiB  797 GiB   19
> >>>> GiB     0 B  797 GiB 78.60 1.07  56     up         osd.14
> >>>> >> >> >>> >  15   hdd   3.63689  1.00000 3.6 TiB 2.3 TiB  1.3 TiB  2.2
> >>>> GiB     0 B  1.3 TiB 63.96 0.87  41     up         osd.15
> >>>> >> >> >>> >  -5        58.49872        -  58 TiB  43 TiB   36 TiB  6.7
> >>>> GiB  97 GiB   15 TiB 74.04 1.01   -            host s3db4
> >>>> >> >> >>> >  11   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  940
> >>>> MiB  26 GiB  4.0 TiB 72.49 0.98 196     up         osd.11
> >>>> >> >> >>> >  17   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB 1022
> >>>> MiB  26 GiB  3.6 TiB 75.23 1.02 204     up         osd.17
> >>>> >> >> >>> >  18   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  945
> >>>> MiB  45 GiB  3.8 TiB 74.16 1.01 193     up         osd.18
> >>>> >> >> >>> >  20   hdd   3.63689  1.00000 3.6 TiB 2.6 TiB 1020 GiB  596
> >>>> MiB     0 B 1020 GiB 72.62 0.99  57     up         osd.20
> >>>> >> >> >>> >  21   hdd   3.63689  1.00000 3.6 TiB 2.6 TiB 1023 GiB  1.9
> >>>> GiB     0 B 1023 GiB 72.54 0.98  41     up         osd.21
> >>>> >> >> >>> >  22   hdd   3.63689  1.00000 3.6 TiB 2.6 TiB 1023 GiB  797
> >>>> MiB     0 B 1023 GiB 72.54 0.98  53     up         osd.22
> >>>> >> >> >>> >  24   hdd   3.63689  1.00000 3.6 TiB 2.9 TiB  766 GiB  618
> >>>> MiB     0 B  766 GiB 79.42 1.08  46     up         osd.24
> >>>> >> >> >>> >  -6        58.89636        -  59 TiB  43 TiB   43 TiB  3.0
> >>>> GiB 108 GiB   16 TiB 73.40 1.00   -            host s3db5
> >>>> >> >> >>> >   0   hdd   3.73630  1.00000 3.7 TiB 2.7 TiB  2.6 TiB   92
> >>>> MiB 7.2 GiB  1.1 TiB 71.16 0.97  45     up         osd.0
> >>>> >> >> >>> >  25   hdd   3.73630  1.00000 3.7 TiB 2.7 TiB  2.6 TiB  2.4
> >>>> MiB 7.3 GiB  1.1 TiB 71.23 0.97  41     up         osd.25
> >>>> >> >> >>> >  26   hdd   3.73630  1.00000 3.7 TiB 2.8 TiB  2.7 TiB  181
> >>>> MiB 7.6 GiB  935 GiB 75.57 1.03  45     up         osd.26
> >>>> >> >> >>> >  27   hdd   3.73630  1.00000 3.7 TiB 2.7 TiB  2.6 TiB  5.1
> >>>> MiB 7.0 GiB  1.1 TiB 71.20 0.97  47     up         osd.27
> >>>> >> >> >>> >  28   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  977
> >>>> MiB  26 GiB  3.8 TiB 73.85 1.00 197     up         osd.28
> >>>> >> >> >>> >  29   hdd  14.65039  1.00000  15 TiB  11 TiB   10 TiB  872
> >>>> MiB  26 GiB  4.1 TiB 71.98 0.98 196     up         osd.29
> >>>> >> >> >>> >  30   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  943
> >>>> MiB  27 GiB  3.6 TiB 75.51 1.03 202     up         osd.30
> >>>> >> >> >>> >  -7        58.89636        -  59 TiB  44 TiB   43 TiB   13
> >>>> GiB 122 GiB   15 TiB 74.97 1.02   -            host s3db6
> >>>> >> >> >>> >  32   hdd   3.73630  1.00000 3.7 TiB 2.8 TiB  2.7 TiB   27
> >>>> MiB 7.6 GiB  940 GiB 75.42 1.02  55     up         osd.32
> >>>> >> >> >>> >  33   hdd   3.73630  1.00000 3.7 TiB 3.1 TiB  3.0 TiB  376
> >>>> MiB 8.2 GiB  691 GiB 81.94 1.11  55     up         osd.33
> >>>> >> >> >>> >  34   hdd   3.73630  1.00000 3.7 TiB 3.1 TiB  3.0 TiB  450
> >>>> MiB 8.5 GiB  620 GiB 83.79 1.14  54     up         osd.34
> >>>> >> >> >>> >  35   hdd   3.73630  1.00000 3.7 TiB 3.1 TiB  3.0 TiB  316
> >>>> MiB 8.4 GiB  690 GiB 81.98 1.11  50     up         osd.35
> >>>> >> >> >>> >  36   hdd  14.65039  1.00000  15 TiB  11 TiB   10 TiB  489
> >>>> MiB  25 GiB  4.1 TiB 71.69 0.97 208     up         osd.36
> >>>> >> >> >>> >  37   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB   11
> >>>> GiB  38 GiB  4.0 TiB 72.41 0.98 195     up         osd.37
> >>>> >> >> >>> >  38   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  1.1
> >>>> GiB  26 GiB  3.7 TiB 74.88 1.02 204     up         osd.38
> >>>> >> >> >>> >  -8        58.89636        -  59 TiB  44 TiB   43 TiB  3.8
> >>>> GiB 111 GiB   15 TiB 74.16 1.01   -            host s3db7
> >>>> >> >> >>> >  39   hdd   3.73630  1.00000 3.7 TiB 2.8 TiB  2.7 TiB   19
> >>>> MiB 7.5 GiB  936 GiB 75.54 1.03  39     up         osd.39
> >>>> >> >> >>> >  40   hdd   3.73630  1.00000 3.7 TiB 2.6 TiB  2.5 TiB  144
> >>>> MiB 7.1 GiB  1.1 TiB 69.87 0.95  39     up         osd.40
> >>>> >> >> >>> >  41   hdd   3.73630  1.00000 3.7 TiB 2.7 TiB  2.7 TiB  219
> >>>> MiB 7.6 GiB 1011 GiB 73.57 1.00  55     up         osd.41
> >>>> >> >> >>> >  42   hdd   3.73630  1.00000 3.7 TiB 2.6 TiB  2.5 TiB  593
> >>>> MiB 7.1 GiB  1.1 TiB 70.02 0.95  47     up         osd.42
> >>>> >> >> >>> >  43   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  500
> >>>> MiB  27 GiB  3.7 TiB 74.67 1.01 204     up         osd.43
> >>>> >> >> >>> >  44   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  1.1
> >>>> GiB  27 GiB  3.7 TiB 74.62 1.01 193     up         osd.44
> >>>> >> >> >>> >  45   hdd  14.65039  1.00000  15 TiB  11 TiB   11 TiB  1.2
> >>>> GiB  29 GiB  3.6 TiB 75.16 1.02 204     up         osd.45
> >>>> >> >> >>> >  -9        51.28331        -  51 TiB  39 TiB   39 TiB  4.9
> >>>> GiB 107 GiB   12 TiB 76.50 1.04   -            host s3db8
> >>>> >> >> >>> >   8   hdd   7.32619  1.00000 7.3 TiB 5.6 TiB  5.5 TiB  474
> >>>> MiB  14 GiB  1.7 TiB 76.37 1.04  98     up         osd.8
> >>>> >> >> >>> >  16   hdd   7.32619  1.00000 7.3 TiB 5.7 TiB  5.7 TiB  783
> >>>> MiB  15 GiB  1.6 TiB 78.39 1.06 100     up         osd.16
> >>>> >> >> >>> >  31   hdd   7.32619  1.00000 7.3 TiB 5.7 TiB  5.6 TiB  441
> >>>> MiB  14 GiB  1.6 TiB 77.70 1.05  91     up         osd.31
> >>>> >> >> >>> >  52   hdd   7.32619  1.00000 7.3 TiB 5.6 TiB  5.5 TiB  939
> >>>> MiB  14 GiB  1.7 TiB 76.29 1.04 102     up         osd.52
> >>>> >> >> >>> >  53   hdd   7.32619  1.00000 7.3 TiB 5.4 TiB  5.4 TiB  848
> >>>> MiB  18 GiB  1.9 TiB 74.30 1.01  98     up         osd.53
> >>>> >> >> >>> >  54   hdd   7.32619  1.00000 7.3 TiB 5.6 TiB  5.6 TiB  1.0
> >>>> GiB  16 GiB  1.7 TiB 76.99 1.05 106     up         osd.54
> >>>> >> >> >>> >  55   hdd   7.32619  1.00000 7.3 TiB 5.5 TiB  5.5 TiB  460
> >>>> MiB  15 GiB  1.8 TiB 75.46 1.02 105     up         osd.55
> >>>> >> >> >>> > -10        51.28331        -  51 TiB  37 TiB   37 TiB  3.8
> >>>> GiB  96 GiB   14 TiB 72.77 0.99   -            host s3db9
> >>>> >> >> >>> >  56   hdd   7.32619  1.00000 7.3 TiB 5.2 TiB  5.2 TiB  846
> >>>> MiB  13 GiB  2.1 TiB 71.16 0.97 104     up         osd.56
> >>>> >> >> >>> >  57   hdd   7.32619  1.00000 7.3 TiB 5.6 TiB  5.6 TiB  513
> >>>> MiB  15 GiB  1.7 TiB 76.53 1.04  96     up         osd.57
> >>>> >> >> >>> >  58   hdd   7.32619  1.00000 7.3 TiB 5.2 TiB  5.2 TiB  604
> >>>> MiB  13 GiB  2.1 TiB 71.23 0.97  98     up         osd.58
> >>>> >> >> >>> >  59   hdd   7.32619  1.00000 7.3 TiB 5.1 TiB  5.1 TiB  414
> >>>> MiB  13 GiB  2.2 TiB 70.03 0.95  88     up         osd.59
> >>>> >> >> >>> >  60   hdd   7.32619  1.00000 7.3 TiB 5.5 TiB  5.5 TiB  227
> >>>> MiB  14 GiB  1.8 TiB 75.54 1.03  97     up         osd.60
> >>>> >> >> >>> >  61   hdd   7.32619  1.00000 7.3 TiB 5.1 TiB  5.1 TiB  456
> >>>> MiB  13 GiB  2.2 TiB 70.01 0.95  95     up         osd.61
> >>>> >> >> >>> >  62   hdd   7.32619  1.00000 7.3 TiB 5.5 TiB  5.4 TiB  843
> >>>> MiB  14 GiB  1.8 TiB 74.93 1.02 110     up         osd.62
> >>>> >> >> >>> >                        TOTAL 674 TiB 496 TiB  468 TiB   97
> >>>> GiB 1.2 TiB  177 TiB 73.67
> >>>> >> >> >>> > MIN/MAX VAR: 0.87/1.14  STDDEV: 4.22
> >>>> >> >> >>> >
> >>>> >> >> >>> > Am Mo., 15. März 2021 um 15:02 Uhr schrieb Dan van der Ster
> >>>> <dan@xxxxxxxxxxxxxx>:
> >>>> >> >> >>> >>
> >>>> >> >> >>> >> OK thanks. Indeed "prepared 0/10 changes" means it thinks
> >>>> things are balanced.
> >>>> >> >> >>> >> Could you again share the full ceph osd df tree?
> >>>> >> >> >>> >>
> >>>> >> >> >>> >> On Mon, Mar 15, 2021 at 2:54 PM Boris Behrens <
> >>>> bb@xxxxxxxxx> wrote:
> >>>> >> >> >>> >> >
> >>>> >> >> >>> >> > Hi Dan,
> >>>> >> >> >>> >> >
> >>>> >> >> >>> >> > I've set the autoscaler to warn, but it actually does
> >>>> not warn for now. So not touching it for now.
> >>>> >> >> >>> >> >
> >>>> >> >> >>> >> > this is what the log says in minute intervals:
> >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/active
> >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/sleep_interval
> >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/begin_time
> >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/end_time
> >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/begin_weekday
> >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/end_weekday
> >>>> >> >> >>> >> > 2021-03-15 13:51:00.971 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/pool_ids
> >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700  4 mgr[balancer]
> >>>> Optimize plan auto_2021-03-15_13:51:00
> >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/mode
> >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700  4 mgr[balancer]
> >>>> Mode upmap, max misplaced 0.050000
> >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700  4 mgr[balancer]
> >>>> do_upmap
> >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/upmap_max_iterations
> >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700  4 mgr get_config
> >>>> get_config key: mgr/balancer/upmap_max_deviation
> >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700  4 mgr[balancer]
> >>>> pools ['eu-msg-1.rgw.data.root', 'eu-msg-1.rgw.buckets.non-ec',
> >>>> 'eu-central-1.rgw.users.keys', 'eu-central-1.rgw.gc',
> >>>> 'eu-central-1.rgw.buckets.data', 'eu-central-1.rgw.users.email',
> >>>> 'eu-msg-1.rgw.gc', 'eu-central-1.rgw.usage', 'eu-msg-1.rgw.users.keys',
> >>>> 'eu-central-1.rgw.buckets.index', 'rbd', 'eu-msg-1.rgw.log',
> >>>> 'whitespace-again-2021-03-10_2', 'eu-msg-1.rgw.buckets.index',
> >>>> 'eu-msg-1.rgw.meta', 'eu-central-1.rgw.log', 'default.rgw.gc',
> >>>> 'eu-central-1.rgw.buckets.non-ec', 'eu-msg-1.rgw.usage',
> >>>> 'whitespace-again-2021-03-10', 'fra-1.rgw.meta',
> >>>> 'eu-central-1.rgw.users.uid', 'eu-msg-1.rgw.users.email',
> >>>> 'fra-1.rgw.control', 'eu-msg-1.rgw.users.uid', 'eu-msg-1.rgw.control',
> >>>> '.rgw.root', 'eu-msg-1.rgw.buckets.data', 'default.rgw.control',
> >>>> 'fra-1.rgw.log', 'default.rgw.data.root', 'whitespace-again-2021-03-10_3',
> >>>> 'default.rgw.log', 'eu-central-1.rgw.meta', 'eu-central-1.rgw.data.root',
> >>>> 'default.rgw.users.uid', 'eu-central-1.rgw.control']
> >>>> >> >> >>> >> > 2021-03-15 13:51:01.224 7f307d5fd700  4 mgr[balancer]
> >>>> prepared 0/10 changes
> >>>> >> >> >>> >> >
> >>>> >> >> >>> >> > Am Mo., 15. März 2021 um 14:15 Uhr schrieb Dan van der
> >>>> Ster <dan@xxxxxxxxxxxxxx>:
> >>>> >> >> >>> >> >>
> >>>> >> >> >>> >> >> I suggest to just disable the autoscaler until your
> >>>> balancing is understood.
> >>>> >> >> >>> >> >>
> >>>> >> >> >>> >> >> What does your active mgr log say (with debug_mgr 4/5),
> >>>> grep balancer
> >>>> >> >> >>> >> >> /var/log/ceph/ceph-mgr.*.log
> >>>> >> >> >>> >> >>
> >>>> >> >> >>> >> >> -- Dan
> >>>> >> >> >>> >> >>
> >>>> >> >> >>> >> >> On Mon, Mar 15, 2021 at 1:47 PM Boris Behrens <
> >>>> bb@xxxxxxxxx> wrote:
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> > Hi,
> >>>> >> >> >>> >> >> > this unfortunally did not solve my problem. I still
> >>>> have some OSDs that fill up to 85%
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> > According to the logging, the autoscaler might want
> >>>> to add more PGs to one Bucken and reduce almost all other buckets to 32.
> >>>> >> >> >>> >> >> > 2021-03-15 12:19:58.825 7f307f601700  4
> >>>> mgr[pg_autoscaler] Pool 'eu-central-1.rgw.buckets.data' root_id -1 using
> >>>> 0.705080476146 of space, bias 1.0, pg target 1974.22533321 quantized to
> >>>> 2048 (current 1024)
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> > Why the balancing does not happen is still nebulous
> >>>> to me.
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> > Am Sa., 13. März 2021 um 16:37 Uhr schrieb Dan van
> >>>> der Ster <dan@xxxxxxxxxxxxxx>:
> >>>> >> >> >>> >> >> >>
> >>>> >> >> >>> >> >> >> OK
> >>>> >> >> >>> >> >> >> Btw, you might need to fail to a new mgr... I'm not
> >>>> sure if the current active will read that new config.
> >>>> >> >> >>> >> >> >>
> >>>> >> >> >>> >> >> >> .. dan
> >>>> >> >> >>> >> >> >>
> >>>> >> >> >>> >> >> >>
> >>>> >> >> >>> >> >> >> On Sat, Mar 13, 2021, 4:36 PM Boris Behrens <
> >>>> bb@xxxxxxxxx> wrote:
> >>>> >> >> >>> >> >> >>>
> >>>> >> >> >>> >> >> >>> Hi,
> >>>> >> >> >>> >> >> >>>
> >>>> >> >> >>> >> >> >>> ok thanks. I just changed the value and rewighted
> >>>> everything back to 1. Now I let it sync the weekend and check how it will
> >>>> be on monday.
> >>>> >> >> >>> >> >> >>> We tried to have the systems total storage balanced
> >>>> as possible. New systems will be with 8TB disks but for the exiting ones we
> >>>> added 16TB to offset the 4TB disks and we needed a lot of storage fast,
> >>>> because of a DC move. If you have any recommendations I would be happy to
> >>>> hear them.
> >>>> >> >> >>> >> >> >>>
> >>>> >> >> >>> >> >> >>> Cheers
> >>>> >> >> >>> >> >> >>>  Boris
> >>>> >> >> >>> >> >> >>>
> >>>> >> >> >>> >> >> >>> Am Sa., 13. März 2021 um 16:20 Uhr schrieb Dan van
> >>>> der Ster <dan@xxxxxxxxxxxxxx>:
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>> Thanks.
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>> Decreasing the max deviation to 2 or 1 should help
> >>>> in your case. This option controls when the balancer stops trying to move
> >>>> PGs around -- by default it stops when the deviation from the mean is 5.
> >>>> Yes this is too large IMO -- all of our clusters have this set to 1.
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>> And given that you have some OSDs with more than
> >>>> 200 PGs, you definitely shouldn't increase the num PGs.
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>> But anyway with your mixed device sizes it might
> >>>> be challenging to make a perfectly uniform distribution. Give it a try with
> >>>> 1 though, and let us know how it goes.
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>> .. Dan
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>>
> >>>> >> >> >>> >> >> >>>> On Sat, Mar 13, 2021, 4:11 PM Boris Behrens <
> >>>> bb@xxxxxxxxx> wrote:
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>> Hi Dan,
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>> upmap_max_deviation is default (5) in our
> >>>> cluster. Is 1 the recommended deviation?
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>> I added the whole ceph osd df tree, (I need to
> >>>> remove some OSDs and readd them as bluestore with SSD, so 69, 73 and 82 are
> >>>> a bit off now. I also reweighted to try to get the %USE mitigated).
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>> I will increase the mgr debugging to see what is
> >>>> the problem.
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>> [root@s3db1 ~]# ceph osd df tree
> >>>> >> >> >>> >> >> >>>>> ID  CLASS WEIGHT    REWEIGHT SIZE    RAW USE
> >>>> DATA    OMAP    META    AVAIL   %USE  VAR  PGS STATUS TYPE NAME
> >>>> >> >> >>> >> >> >>>>>  -1       673.54224        - 659 TiB 491 TiB 464
> >>>> TiB  96 GiB 1.2 TiB 168 TiB 74.57 1.00   -        root default
> >>>> >> >> >>> >> >> >>>>>  -2        58.30331        -  44 TiB  22 TiB  17
> >>>> TiB 5.7 GiB  38 GiB  22 TiB 49.82 0.67   -            host s3db1
> >>>> >> >> >>> >> >> >>>>>  23   hdd  14.65039  1.00000  15 TiB 1.8 TiB 1.7
> >>>> TiB 156 MiB 4.4 GiB  13 TiB 12.50 0.17 101     up         osd.23
> >>>> >> >> >>> >> >> >>>>>  69   hdd  14.55269        0     0 B     0 B
> >>>>  0 B     0 B     0 B     0 B     0    0  11     up         osd.69
> >>>> >> >> >>> >> >> >>>>>  73   hdd  14.55269  1.00000  15 TiB  10 TiB  10
> >>>> TiB 6.1 MiB  33 GiB 4.2 TiB 71.15 0.95 107     up         osd.73
> >>>> >> >> >>> >> >> >>>>>  79   hdd   3.63689  1.00000 3.6 TiB 2.9 TiB 747
> >>>> GiB 2.0 GiB     0 B 747 GiB 79.94 1.07  52     up         osd.79
> >>>> >> >> >>> >> >> >>>>>  80   hdd   3.63689  1.00000 3.6 TiB 2.6 TiB 1.0
> >>>> TiB 1.9 GiB     0 B 1.0 TiB 71.61 0.96  58     up         osd.80
> >>>> >> >> >>> >> >> >>>>>  81   hdd   3.63689  1.00000 3.6 TiB 2.2 TiB 1.5
> >>>> TiB 1.1 GiB     0 B 1.5 TiB 60.07 0.81  55     up         osd.81
> >>>> >> >> >>> >> >> >>>>>  82   hdd   3.63689  1.00000 3.6 TiB 1.9 TiB 1.7
> >>>> TiB 536 MiB     0 B 1.7 TiB 52.68 0.71  30     up         osd.82
> >>>> >> >> >>> >> >> >>>>> -11        50.94173        -  51 TiB  38 TiB  38
> >>>> TiB 3.7 GiB 100 GiB  13 TiB 74.69 1.00   -            host s3db10
> >>>> >> >> >>> >> >> >>>>>  63   hdd   7.27739  1.00000 7.3 TiB 5.5 TiB 5.5
> >>>> TiB 616 MiB  14 GiB 1.7 TiB 76.04 1.02  92     up         osd.63
> >>>> >> >> >>> >> >> >>>>>  64   hdd   7.27739  1.00000 7.3 TiB 5.5 TiB 5.5
> >>>> TiB 820 MiB  15 GiB 1.8 TiB 75.54 1.01 101     up         osd.64
> >>>> >> >> >>> >> >> >>>>>  65   hdd   7.27739  1.00000 7.3 TiB 5.3 TiB 5.3
> >>>> TiB 109 MiB  14 GiB 2.0 TiB 73.17 0.98 105     up         osd.65
> >>>> >> >> >>> >> >> >>>>>  66   hdd   7.27739  1.00000 7.3 TiB 5.8 TiB 5.8
> >>>> TiB 423 MiB  15 GiB 1.4 TiB 80.38 1.08  98     up         osd.66
> >>>> >> >> >>> >> >> >>>>>  67   hdd   7.27739  1.00000 7.3 TiB 5.1 TiB 5.1
> >>>> TiB 572 MiB  14 GiB 2.2 TiB 70.10 0.94 100     up         osd.67
> >>>> >> >> >>> >> >> >>>>>  68   hdd   7.27739  1.00000 7.3 TiB 5.3 TiB 5.3
> >>>> TiB 630 MiB  13 GiB 2.0 TiB 72.88 0.98 107     up         osd.68
> >>>> >> >> >>> >> >> >>>>>  70   hdd   7.27739  1.00000 7.3 TiB 5.4 TiB 5.4
> >>>> TiB 648 MiB  14 GiB 1.8 TiB 74.73 1.00 102     up         osd.70
> >>>> >> >> >>> >> >> >>>>> -12        50.99052        -  51 TiB  39 TiB  39
> >>>> TiB 2.9 GiB  99 GiB  12 TiB 77.24 1.04   -            host s3db11
> >>>> >> >> >>> >> >> >>>>>  46   hdd   7.27739  1.00000 7.3 TiB 5.7 TiB 5.7
> >>>> TiB 102 MiB  15 GiB 1.5 TiB 78.91 1.06  97     up         osd.46
> >>>> >> >> >>> >> >> >>>>>  47   hdd   7.27739  1.00000 7.3 TiB 5.2 TiB 5.2
> >>>> TiB  61 MiB  13 GiB 2.1 TiB 71.47 0.96  96     up         osd.47
> >>>> >> >> >>> >> >> >>>>>  48   hdd   7.27739  1.00000 7.3 TiB 6.1 TiB 6.1
> >>>> TiB 853 MiB  15 GiB 1.2 TiB 83.46 1.12 109     up         osd.48
> >>>> >> >> >>> >> >> >>>>>  49   hdd   7.27739  1.00000 7.3 TiB 5.7 TiB 5.7
> >>>> TiB 708 MiB  15 GiB 1.5 TiB 78.96 1.06  98     up         osd.49
> >>>> >> >> >>> >> >> >>>>>  50   hdd   7.27739  1.00000 7.3 TiB 5.9 TiB 5.8
> >>>> TiB 472 MiB  15 GiB 1.4 TiB 80.40 1.08 102     up         osd.50
> >>>> >> >> >>> >> >> >>>>>  51   hdd   7.27739  1.00000 7.3 TiB 5.9 TiB 5.9
> >>>> TiB 729 MiB  15 GiB 1.3 TiB 81.70 1.10 110     up         osd.51
> >>>> >> >> >>> >> >> >>>>>  72   hdd   7.32619  1.00000 7.3 TiB 4.8 TiB 4.8
> >>>> TiB  91 MiB  12 GiB 2.5 TiB 65.82 0.88  89     up         osd.72
> >>>> >> >> >>> >> >> >>>>> -37        58.55478        -  59 TiB  46 TiB  46
> >>>> TiB 5.0 GiB 124 GiB  12 TiB 79.04 1.06   -            host s3db12
> >>>> >> >> >>> >> >> >>>>>  19   hdd   3.68750  1.00000 3.7 TiB 3.1 TiB 3.1
> >>>> TiB 462 MiB 8.2 GiB 559 GiB 85.18 1.14  55     up         osd.19
> >>>> >> >> >>> >> >> >>>>>  71   hdd   3.68750  1.00000 3.7 TiB 2.9 TiB 2.8
> >>>> TiB 3.9 MiB 7.8 GiB 825 GiB 78.14 1.05  50     up         osd.71
> >>>> >> >> >>> >> >> >>>>>  75   hdd   3.68750  1.00000 3.7 TiB 3.1 TiB 3.1
> >>>> TiB 576 MiB 8.3 GiB 555 GiB 85.29 1.14  57     up         osd.75
> >>>> >> >> >>> >> >> >>>>>  76   hdd   3.68750  1.00000 3.7 TiB 3.2 TiB 3.1
> >>>> TiB 239 MiB 9.3 GiB 501 GiB 86.73 1.16  50     up         osd.76
> >>>> >> >> >>> >> >> >>>>>  77   hdd  14.60159  1.00000  15 TiB  11 TiB  11
> >>>> TiB 880 MiB  30 GiB 3.6 TiB 75.57 1.01 202     up         osd.77
> >>>> >> >> >>> >> >> >>>>>  78   hdd  14.60159  1.00000  15 TiB  11 TiB  11
> >>>> TiB 1.0 GiB  30 GiB 3.4 TiB 76.65 1.03 196     up         osd.78
> >>>> >> >> >>> >> >> >>>>>  83   hdd  14.60159  1.00000  15 TiB  12 TiB  12
> >>>> TiB 1.8 GiB  31 GiB 2.9 TiB 80.04 1.07 223     up         osd.83
> >>>> >> >> >>> >> >> >>>>>  -3        58.49872        -  58 TiB  43 TiB  38
> >>>> TiB 8.1 GiB  91 GiB  16 TiB 73.15 0.98   -            host s3db2
> >>>> >> >> >>> >> >> >>>>>   1   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 3.1 GiB  38 GiB 3.6 TiB 75.52 1.01 194     up         osd.1
> >>>> >> >> >>> >> >> >>>>>   3   hdd   3.63689  1.00000 3.6 TiB 2.2 TiB 1.4
> >>>> TiB 418 MiB     0 B 1.4 TiB 60.94 0.82  52     up         osd.3
> >>>> >> >> >>> >> >> >>>>>   4   hdd   3.63689  0.89999 3.6 TiB 3.2 TiB 401
> >>>> GiB 845 MiB     0 B 401 GiB 89.23 1.20  53     up         osd.4
> >>>> >> >> >>> >> >> >>>>>   5   hdd   3.63689  1.00000 3.6 TiB 2.3 TiB 1.3
> >>>> TiB 437 MiB     0 B 1.3 TiB 62.88 0.84  51     up         osd.5
> >>>> >> >> >>> >> >> >>>>>   6   hdd   3.63689  1.00000 3.6 TiB 2.0 TiB 1.7
> >>>> TiB 1.8 GiB     0 B 1.7 TiB 54.51 0.73  47     up         osd.6
> >>>> >> >> >>> >> >> >>>>>   7   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 493 MiB  26 GiB 3.8 TiB 73.90 0.99 185     up         osd.7
> >>>> >> >> >>> >> >> >>>>>  74   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 1.1 GiB  27 GiB 3.5 TiB 76.27 1.02 208     up         osd.74
> >>>> >> >> >>> >> >> >>>>>  -4        58.49872        -  58 TiB  43 TiB  37
> >>>> TiB  33 GiB  86 GiB  15 TiB 74.05 0.99   -            host s3db3
> >>>> >> >> >>> >> >> >>>>>   2   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 850 MiB  26 GiB 4.0 TiB 72.78 0.98 203     up         osd.2
> >>>> >> >> >>> >> >> >>>>>   9   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 8.3 GiB  33 GiB 3.6 TiB 75.62 1.01 189     up         osd.9
> >>>> >> >> >>> >> >> >>>>>  10   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 663 MiB  28 GiB 3.5 TiB 76.34 1.02 211     up         osd.10
> >>>> >> >> >>> >> >> >>>>>  12   hdd   3.63689  1.00000 3.6 TiB 2.4 TiB 1.2
> >>>> TiB 633 MiB     0 B 1.2 TiB 66.22 0.89  44     up         osd.12
> >>>> >> >> >>> >> >> >>>>>  13   hdd   3.63689  1.00000 3.6 TiB 2.9 TiB 720
> >>>> GiB 2.3 GiB     0 B 720 GiB 80.66 1.08  66     up         osd.13
> >>>> >> >> >>> >> >> >>>>>  14   hdd   3.63689  1.00000 3.6 TiB 3.1 TiB 552
> >>>> GiB  18 GiB     0 B 552 GiB 85.18 1.14  60     up         osd.14
> >>>> >> >> >>> >> >> >>>>>  15   hdd   3.63689  1.00000 3.6 TiB 2.0 TiB 1.7
> >>>> TiB 2.1 GiB     0 B 1.7 TiB 53.72 0.72  44     up         osd.15
> >>>> >> >> >>> >> >> >>>>>  -5        58.49872        -  58 TiB  45 TiB  37
> >>>> TiB 7.2 GiB  99 GiB  14 TiB 76.37 1.02   -            host s3db4
> >>>> >> >> >>> >> >> >>>>>  11   hdd  14.65039  1.00000  15 TiB  12 TiB  12
> >>>> TiB 897 MiB  28 GiB 2.8 TiB 81.15 1.09 205     up         osd.11
> >>>> >> >> >>> >> >> >>>>>  17   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 1.2 GiB  27 GiB 3.6 TiB 75.38 1.01 211     up         osd.17
> >>>> >> >> >>> >> >> >>>>>  18   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 965 MiB  44 GiB 4.0 TiB 72.86 0.98 188     up         osd.18
> >>>> >> >> >>> >> >> >>>>>  20   hdd   3.63689  1.00000 3.6 TiB 2.9 TiB 796
> >>>> GiB 529 MiB     0 B 796 GiB 78.63 1.05  66     up         osd.20
> >>>> >> >> >>> >> >> >>>>>  21   hdd   3.63689  1.00000 3.6 TiB 2.6 TiB 1.1
> >>>> TiB 2.1 GiB     0 B 1.1 TiB 70.32 0.94  47     up         osd.21
> >>>> >> >> >>> >> >> >>>>>  22   hdd   3.63689  1.00000 3.6 TiB 2.9 TiB 802
> >>>> GiB 882 MiB     0 B 802 GiB 78.47 1.05  58     up         osd.22
> >>>> >> >> >>> >> >> >>>>>  24   hdd   3.63689  1.00000 3.6 TiB 2.8 TiB 856
> >>>> GiB 645 MiB     0 B 856 GiB 77.01 1.03  47     up         osd.24
> >>>> >> >> >>> >> >> >>>>>  -6        58.89636        -  59 TiB  44 TiB  44
> >>>> TiB 2.4 GiB 111 GiB  15 TiB 75.22 1.01   -            host s3db5
> >>>> >> >> >>> >> >> >>>>>   0   hdd   3.73630  1.00000 3.7 TiB 2.4 TiB 2.3
> >>>> TiB  70 MiB 6.6 GiB 1.3 TiB 65.00 0.87  48     up         osd.0
> >>>> >> >> >>> >> >> >>>>>  25   hdd   3.73630  1.00000 3.7 TiB 2.4 TiB 2.3
> >>>> TiB 5.3 MiB 6.6 GiB 1.4 TiB 63.86 0.86  41     up         osd.25
> >>>> >> >> >>> >> >> >>>>>  26   hdd   3.73630  1.00000 3.7 TiB 2.9 TiB 2.8
> >>>> TiB 181 MiB 7.6 GiB 862 GiB 77.47 1.04  48     up         osd.26
> >>>> >> >> >>> >> >> >>>>>  27   hdd   3.73630  1.00000 3.7 TiB 2.3 TiB 2.2
> >>>> TiB 7.0 MiB 6.1 GiB 1.5 TiB 61.00 0.82  48     up         osd.27
> >>>> >> >> >>> >> >> >>>>>  28   hdd  14.65039  1.00000  15 TiB  12 TiB  12
> >>>> TiB 937 MiB  30 GiB 2.8 TiB 81.19 1.09 203     up         osd.28
> >>>> >> >> >>> >> >> >>>>>  29   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 536 MiB  26 GiB 3.8 TiB 73.95 0.99 200     up         osd.29
> >>>> >> >> >>> >> >> >>>>>  30   hdd  14.65039  1.00000  15 TiB  12 TiB  11
> >>>> TiB 744 MiB  28 GiB 3.1 TiB 79.07 1.06 207     up         osd.30
> >>>> >> >> >>> >> >> >>>>>  -7        58.89636        -  59 TiB  44 TiB  44
> >>>> TiB  14 GiB 122 GiB  14 TiB 75.41 1.01   -            host s3db6
> >>>> >> >> >>> >> >> >>>>>  32   hdd   3.73630  1.00000 3.7 TiB 3.1 TiB 3.0
> >>>> TiB  16 MiB 8.2 GiB 622 GiB 83.74 1.12  65     up         osd.32
> >>>> >> >> >>> >> >> >>>>>  33   hdd   3.73630  0.79999 3.7 TiB 3.0 TiB 2.9
> >>>> TiB  14 MiB 8.1 GiB 740 GiB 80.67 1.08  52     up         osd.33
> >>>> >> >> >>> >> >> >>>>>  34   hdd   3.73630  0.79999 3.7 TiB 2.9 TiB 2.8
> >>>> TiB 449 MiB 7.7 GiB 877 GiB 77.08 1.03  52     up         osd.34
> >>>> >> >> >>> >> >> >>>>>  35   hdd   3.73630  0.79999 3.7 TiB 2.3 TiB 2.2
> >>>> TiB 133 MiB 7.0 GiB 1.4 TiB 62.18 0.83  42     up         osd.35
> >>>> >> >> >>> >> >> >>>>>  36   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 544 MiB  26 GiB 4.0 TiB 72.98 0.98 220     up         osd.36
> >>>> >> >> >>> >> >> >>>>>  37   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB  11 GiB  38 GiB 3.6 TiB 75.30 1.01 200     up         osd.37
> >>>> >> >> >>> >> >> >>>>>  38   hdd  14.65039  1.00000  15 TiB  11 TiB  11
> >>>> TiB 1.2 GiB  28 GiB 3.3 TiB 77.43 1.04 217     up         osd.38
> >>>> >> >> >>> >> >> >>>>>  -8        58.89636        -  59 TiB  47 TiB  46
> >>>> TiB 3.9 GiB 116 GiB  12 TiB 78.98 1.06   -            host s3db7
> >>>> >> >> >>> >> >> >>>>>  39   hdd   3.73630  1.00000 3.7 TiB 3.2 TiB 3.2
> >>>> TiB  19 MiB 8.5 GiB 499 GiB 86.96 1.17  43     up         osd.39
> >>>> >> >> >>> >> >> >>>>>  40   hdd   3.73630  1.00000 3.7 TiB 2.6 TiB 2.5
> >>>> TiB 144 MiB 7.0 GiB 1.2 TiB 68.33 0.92  39     up         osd.40
> >>>> >> >> >>> >> >> >>>>>  41   hdd   3.73630  1.00000 3.7 TiB 3.0 TiB 2.9
> >>>> TiB 218 MiB 7.9 GiB 732 GiB 80.86 1.08  64     up         osd.41
> >>>> >> >> >>> >> >> >>>>>  42   hdd   3.73630  1.00000 3.7 TiB 2.5 TiB 2.4
> >>>> TiB 594 MiB 7.0 GiB 1.2 TiB 67.97 0.91  50     up         osd.42
> >>>> >> >> >>> >> >> >>>>>  43   hdd  14.65039  1.00000  15 TiB  12 TiB  12
> >>>> TiB 564 MiB  28 GiB 2.9 TiB 80.32 1.08 213     up         osd.43
> >>>> >> >> >>> >> >> >>>>>  44   hdd  14.65039  1.00000  15 TiB  12 TiB  11
> >>>> TiB 1.3 GiB  28 GiB 3.1 TiB 78.59 1.05 198     up         osd.44
> >>>> >> >> >>> >> >> >>>>>  45   hdd  14.65039  1.00000  15 TiB  12 TiB  12
> >>>> TiB 1.2 GiB  30 GiB 2.8 TiB 81.05 1.09 214     up         osd.45
> >>>> >> >> >>> >> >> >>>>>  -9        51.28331        -  51 TiB  41 TiB  41
> >>>> TiB 4.9 GiB 108 GiB  10 TiB 79.75 1.07   -            host s3db8
> >>>> >> >> >>> >> >> >>>>>   8   hdd   7.32619  1.00000 7.3 TiB 5.8 TiB 5.8
> >>>> TiB 472 MiB  15 GiB 1.5 TiB 79.68 1.07  99     up         osd.8
> >>>> >> >> >>> >> >> >>>>>  16   hdd   7.32619  1.00000 7.3 TiB 5.9 TiB 5.8
> >>>> TiB 785 MiB  15 GiB 1.4 TiB 80.25 1.08  97     up         osd.16
> >>>> >> >> >>> >> >> >>>>>  31   hdd   7.32619  1.00000 7.3 TiB 5.5 TiB 5.5
> >>>> TiB 438 MiB  14 GiB 1.8 TiB 75.36 1.01  87     up         osd.31
> >>>> >> >> >>> >> >> >>>>>  52   hdd   7.32619  1.00000 7.3 TiB 5.7 TiB 5.7
> >>>> TiB 844 MiB  15 GiB 1.6 TiB 78.19 1.05 113     up         osd.52
> >>>> >> >> >>> >> >> >>>>>  53   hdd   7.32619  1.00000 7.3 TiB 6.2 TiB 6.1
> >>>> TiB 792 MiB  18 GiB 1.1 TiB 84.46 1.13 109     up         osd.53
> >>>> >> >> >>> >> >> >>>>>  54   hdd   7.32619  1.00000 7.3 TiB 5.6 TiB 5.6
> >>>> TiB 959 MiB  15 GiB 1.7 TiB 76.73 1.03 115     up         osd.54
> >>>> >> >> >>> >> >> >>>>>  55   hdd   7.32619  1.00000 7.3 TiB 6.1 TiB 6.1
> >>>> TiB 699 MiB  16 GiB 1.2 TiB 83.56 1.12 122     up         osd.55
> >>>> >> >> >>> >> >> >>>>> -10        51.28331        -  51 TiB  39 TiB  39
> >>>> TiB 4.7 GiB 100 GiB  12 TiB 76.05 1.02   -            host s3db9
> >>>> >> >> >>> >> >> >>>>>  56   hdd   7.32619  1.00000 7.3 TiB 5.2 TiB 5.2
> >>>> TiB 840 MiB  13 GiB 2.1 TiB 71.06 0.95 105     up         osd.56
> >>>> >> >> >>> >> >> >>>>>  57   hdd   7.32619  1.00000 7.3 TiB 6.1 TiB 6.0
> >>>> TiB 1.0 GiB  16 GiB 1.2 TiB 83.17 1.12 102     up         osd.57
> >>>> >> >> >>> >> >> >>>>>  58   hdd   7.32619  1.00000 7.3 TiB 6.0 TiB 5.9
> >>>> TiB  43 MiB  15 GiB 1.4 TiB 81.56 1.09 105     up         osd.58
> >>>> >> >> >>> >> >> >>>>>  59   hdd   7.32619  1.00000 7.3 TiB 5.9 TiB 5.9
> >>>> TiB 429 MiB  15 GiB 1.4 TiB 80.64 1.08  94     up         osd.59
> >>>> >> >> >>> >> >> >>>>>  60   hdd   7.32619  1.00000 7.3 TiB 5.4 TiB 5.3
> >>>> TiB 226 MiB  14 GiB 2.0 TiB 73.25 0.98 101     up         osd.60
> >>>> >> >> >>> >> >> >>>>>  61   hdd   7.32619  1.00000 7.3 TiB 4.8 TiB 4.8
> >>>> TiB 1.1 GiB  12 GiB 2.5 TiB 65.84 0.88 103     up         osd.61
> >>>> >> >> >>> >> >> >>>>>  62   hdd   7.32619  1.00000 7.3 TiB 5.6 TiB 5.6
> >>>> TiB 1.0 GiB  15 GiB 1.7 TiB 76.83 1.03 126     up         osd.62
> >>>> >> >> >>> >> >> >>>>>                        TOTAL 674 TiB 501 TiB 473
> >>>> TiB  96 GiB 1.2 TiB 173 TiB 74.57
> >>>> >> >> >>> >> >> >>>>> MIN/MAX VAR: 0.17/1.20  STDDEV: 10.25
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>> Am Sa., 13. März 2021 um 15:57 Uhr schrieb Dan
> >>>> van der Ster <dan@xxxxxxxxxxxxxx>:
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>> No, increasing num PGs won't help substantially.
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>> Can you share the entire output of ceph osd df
> >>>> tree ?
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>> Did you already set
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>>   ceph config set mgr
> >>>> mgr/balancer/upmap_max_deviation 1
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>> ??
> >>>> >> >> >>> >> >> >>>>>> And I recommend debug_mgr 4/5 so you can see
> >>>> some basic upmap balancer logging.
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>> .. Dan
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>>
> >>>> >> >> >>> >> >> >>>>>> On Sat, Mar 13, 2021, 3:49 PM Boris Behrens <
> >>>> bb@xxxxxxxxx> wrote:
> >>>> >> >> >>> >> >> >>>>>>>
> >>>> >> >> >>> >> >> >>>>>>> Hello people,
> >>>> >> >> >>> >> >> >>>>>>>
> >>>> >> >> >>> >> >> >>>>>>> I am still struggeling with the balancer
> >>>> >> >> >>> >> >> >>>>>>> (
> >>>> https://www.mail-archive.com/ceph-users@xxxxxxx/msg09124.html)
> >>>> >> >> >>> >> >> >>>>>>> Now I've read some more and might think that I
> >>>> do not have enough PGs.
> >>>> >> >> >>> >> >> >>>>>>> Currently I have 84OSDs and 1024PGs for the
> >>>> main pool (3008 total). I
> >>>> >> >> >>> >> >> >>>>>>> have the autoscaler enabled, but I doesn't tell
> >>>> me to increase the
> >>>> >> >> >>> >> >> >>>>>>> PGs.
> >>>> >> >> >>> >> >> >>>>>>>
> >>>> >> >> >>> >> >> >>>>>>> What do you think?
> >>>> >> >> >>> >> >> >>>>>>>
> >>>> >> >> >>> >> >> >>>>>>> --
> >>>> >> >> >>> >> >> >>>>>>> Die Selbsthilfegruppe "UTF-8-Probleme" trifft
> >>>> sich diesmal abweichend
> >>>> >> >> >>> >> >> >>>>>>> im groüen Saal.
> >>>> >> >> >>> >> >> >>>>>>> _______________________________________________
> >>>> >> >> >>> >> >> >>>>>>> ceph-users mailing list -- ceph-users@xxxxxxx
> >>>> >> >> >>> >> >> >>>>>>> To unsubscribe send an email to
> >>>> ceph-users-leave@xxxxxxx
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>>
> >>>> >> >> >>> >> >> >>>>> --
> >>>> >> >> >>> >> >> >>>>> Die Selbsthilfegruppe "UTF-8-Probleme" trifft
> >>>> sich diesmal abweichend im groüen Saal.
> >>>> >> >> >>> >> >> >>>
> >>>> >> >> >>> >> >> >>>
> >>>> >> >> >>> >> >> >>>
> >>>> >> >> >>> >> >> >>> --
> >>>> >> >> >>> >> >> >>> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich
> >>>> diesmal abweichend im groüen Saal.
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> >
> >>>> >> >> >>> >> >> > --
> >>>> >> >> >>> >> >> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich
> >>>> diesmal abweichend im groüen Saal.
> >>>> >> >> >>> >> >
> >>>> >> >> >>> >> >
> >>>> >> >> >>> >> >
> >>>> >> >> >>> >> > --
> >>>> >> >> >>> >> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich
> >>>> diesmal abweichend im groüen Saal.
> >>>> >> >> >>> >
> >>>> >> >> >>> >
> >>>> >> >> >>> >
> >>>> >> >> >>> > --
> >>>> >> >> >>> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal
> >>>> abweichend im groüen Saal.
> >>>> >> >> >>
> >>>> >> >> >>
> >>>> >> >> >>
> >>>> >> >> >> --
> >>>> >> >> >> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal
> >>>> abweichend im groüen Saal.
> >>>> >> >> >
> >>>> >> >> >
> >>>> >> >> >
> >>>> >> >> > --
> >>>> >> >> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal
> >>>> abweichend im groüen Saal.
> >>>> >> >
> >>>> >> >
> >>>> >> >
> >>>> >> > --
> >>>> >> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal
> >>>> abweichend im groüen Saal.
> >>>> >
> >>>> >
> >>>> >
> >>>> > --
> >>>> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend
> >>>> im groüen Saal.
> >>>>
> >>>
> >>>
> >>> --
> >>> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
> >>> groüen Saal.
> >>>
> >>
> >
> > --
> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
> > groüen Saal.
> >
>
>
> --
> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
> groüen Saal.
> _______________________________________________
> 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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