Re: [Suspicious newsletter] Re: The always welcomed large omap

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Here is the command output:

ID   CLASS  WEIGHT     REWEIGHT  SIZE     RAW USE   DATA     OMAP      META     AVAIL    %USE  VAR   PGS  STATUS  TYPE NAME
 -1         530.89032         -  531 TiB    29 TiB   11 TiB    31 GiB  338 GiB  502 TiB  5.43  1.00    -          root default
 -5          85.57072         -   86 TiB   1.9 TiB  1.9 TiB   5.5 GiB   58 GiB   84 TiB  2.26  0.42    -              host server-6s01
 36   nvme    1.74660   1.00000  1.7 TiB   6.0 GiB   17 MiB   5.4 GiB  564 MiB  1.7 TiB  0.33  0.06   31      up          osd.36
  0    ssd   13.97069   1.00000   14 TiB   248 GiB  241 GiB    23 MiB  7.6 GiB   14 TiB  1.74  0.32   19      up          osd.0
  8    ssd   13.97069   1.00000   14 TiB   616 GiB  600 GiB    25 MiB   16 GiB   13 TiB  4.31  0.79   23      up          osd.8
 15    ssd   13.97069   1.00000   14 TiB   246 GiB  239 GiB   2.4 MiB  7.3 GiB   14 TiB  1.72  0.32   12      up          osd.15
 18    ssd   13.97069   1.00000   14 TiB   247 GiB  240 GiB   8.4 MiB  6.9 GiB   14 TiB  1.73  0.32   15      up          osd.18
 24    ssd   13.97069   1.00000   14 TiB   309 GiB  299 GiB  1014 KiB  9.8 GiB   14 TiB  2.16  0.40   10      up          osd.24
 30    ssd   13.97069   1.00000   14 TiB   309 GiB  299 GiB    15 MiB  9.8 GiB   14 TiB  2.16  0.40   16      up          osd.30
 -3          89.06392         -   89 TiB   5.4 TiB  1.9 TiB   6.7 GiB   56 GiB   84 TiB  6.04  1.11    -              host server-6s02
 37   nvme    1.74660   1.00000  1.7 TiB   7.1 GiB   18 MiB   6.6 GiB  544 MiB  1.7 TiB  0.40  0.07   39      up          osd.37
  1    ssd   14.55289   1.00000   15 TiB  1017 GiB  420 GiB    36 MiB   13 GiB   14 TiB  6.82  1.26   18      up          osd.1
 11    ssd   14.55289   1.00000   15 TiB   1.1 TiB  480 GiB    63 MiB   13 GiB   14 TiB  7.23  1.33   18      up          osd.11
 17    ssd   14.55289   1.00000   15 TiB   897 GiB  300 GiB    26 MiB  8.5 GiB   14 TiB  6.02  1.11   17      up          osd.17
 23    ssd   14.55289   1.00000   15 TiB   957 GiB  360 GiB    13 MiB   10 GiB   14 TiB  6.42  1.18   13      up          osd.23
 28    ssd   14.55289   1.00000   15 TiB   896 GiB  299 GiB    27 MiB  8.5 GiB   14 TiB  6.01  1.11   23      up          osd.28
 35    ssd   14.55289   1.00000   15 TiB   657 GiB   60 GiB    14 MiB  2.1 GiB   14 TiB  4.41  0.81   16      up          osd.35
-11          89.06392         -   89 TiB   5.4 TiB  1.9 TiB   5.4 GiB   56 GiB   84 TiB  6.04  1.11    -              host server-6s03
 41   nvme    1.74660   1.00000  1.7 TiB   5.9 GiB   18 MiB   5.2 GiB  675 MiB  1.7 TiB  0.33  0.06   33      up          osd.41
  2    ssd   14.55289   1.00000   15 TiB   957 GiB  360 GiB    53 MiB   10 GiB   14 TiB  6.42  1.18   22      up          osd.2
  6    ssd   14.55289   1.00000   15 TiB   716 GiB  119 GiB    34 MiB  3.8 GiB   14 TiB  4.81  0.89   15      up          osd.6
 13    ssd   14.55289   1.00000   15 TiB   896 GiB  299 GiB   7.0 MiB  8.5 GiB   14 TiB  6.01  1.11   11      up          osd.13
 19    ssd   14.55289   1.00000   15 TiB   777 GiB  180 GiB    38 MiB  5.4 GiB   14 TiB  5.21  0.96   13      up          osd.19
 26    ssd   14.55289   1.00000   15 TiB   837 GiB  240 GiB    11 MiB  7.5 GiB   14 TiB  5.62  1.03   13      up          osd.26
 32    ssd   14.55289   1.00000   15 TiB   1.3 TiB  720 GiB    23 MiB   20 GiB   13 TiB  8.84  1.63   23      up          osd.32
-13          89.06392         -   89 TiB   5.4 TiB  1.9 TiB   4.8 GiB   56 GiB   84 TiB  6.04  1.11    -              host server-6s04
 38   nvme    1.74660   1.00000  1.7 TiB   5.2 GiB   17 MiB   4.7 GiB  568 MiB  1.7 TiB  0.29  0.05   26      up          osd.38
  5    ssd   14.55289   1.00000   15 TiB   776 GiB  179 GiB    21 MiB  5.9 GiB   14 TiB  5.21  0.96   14      up          osd.5
  7    ssd   14.55289   1.00000   15 TiB   897 GiB  300 GiB    53 MiB  8.5 GiB   14 TiB  6.02  1.11   19      up          osd.7
 14    ssd   14.55289   1.00000   15 TiB   897 GiB  299 GiB   3.1 MiB  8.6 GiB   14 TiB  6.02  1.11   11      up          osd.14
 20    ssd   14.55289   1.00000   15 TiB  1017 GiB  420 GiB   3.5 MiB   12 GiB   14 TiB  6.83  1.26   13      up          osd.20
 25    ssd   14.55289   1.00000   15 TiB   896 GiB  299 GiB    16 MiB  9.0 GiB   14 TiB  6.01  1.11   18      up          osd.25
 31    ssd   14.55289   1.00000   15 TiB  1018 GiB  421 GiB    42 MiB   12 GiB   14 TiB  6.83  1.26   17      up          osd.31
 -9          89.06392         -   89 TiB   5.4 TiB  1.9 TiB   2.9 GiB   56 GiB   84 TiB  6.04  1.11    -              host server-6s05
 40   nvme    1.74660   1.00000  1.7 TiB   3.5 GiB   18 MiB   2.8 GiB  745 MiB  1.7 TiB  0.20  0.04   29      up          osd.40
  3    ssd   14.55289   1.00000   15 TiB   837 GiB  240 GiB    37 MiB  7.0 GiB   14 TiB  5.62  1.03   10      up          osd.3
 10    ssd   14.55289   1.00000   15 TiB   957 GiB  360 GiB    22 MiB   10 GiB   14 TiB  6.42  1.18   23      up          osd.10
 12    ssd   14.55289   1.00000   15 TiB   896 GiB  299 GiB   9.9 MiB  8.6 GiB   14 TiB  6.01  1.11   12      up          osd.12
 21    ssd   14.55289   1.00000   15 TiB   1.2 TiB  659 GiB    19 MiB   18 GiB   13 TiB  8.43  1.55   23      up          osd.21
 29    ssd   14.55289   1.00000   15 TiB   776 GiB  179 GiB    25 MiB  6.2 GiB   14 TiB  5.21  0.96   16      up          osd.29
 33    ssd   14.55289   1.00000   15 TiB   778 GiB  181 GiB    16 MiB  5.4 GiB   14 TiB  5.22  0.96   10      up          osd.33
 -7          89.06392         -   89 TiB   5.4 TiB  1.9 TiB   5.5 GiB   56 GiB   84 TiB  6.04  1.11    -              host server-6s06
 39   nvme    1.74660   1.00000  1.7 TiB   5.9 GiB   18 MiB   5.4 GiB  497 MiB  1.7 TiB  0.33  0.06   34      up          osd.39
  4    ssd   14.55289   1.00000   15 TiB   717 GiB  120 GiB    10 MiB  3.8 GiB   14 TiB  4.81  0.89   19      up          osd.4
  9    ssd   14.55289   1.00000   15 TiB   897 GiB  299 GiB    21 MiB  8.5 GiB   14 TiB  6.02  1.11   12      up          osd.9
 16    ssd   14.55289   1.00000   15 TiB  1017 GiB  420 GiB    17 MiB   12 GiB   14 TiB  6.83  1.26   13      up          osd.16
 22    ssd   14.55289   1.00000   15 TiB   1.1 TiB  538 GiB    13 MiB   16 GiB   13 TiB  7.62  1.40   24      up          osd.22
 27    ssd   14.55289   1.00000   15 TiB   778 GiB  180 GiB    18 MiB  5.4 GiB   14 TiB  5.22  0.96   11      up          osd.27
 34    ssd   14.55289   1.00000   15 TiB   957 GiB  360 GiB    16 MiB   10 GiB   14 TiB  6.42  1.18   17      up          osd.34
                          TOTAL  531 TiB    29 TiB   11 TiB    31 GiB  338 GiB  502 TiB  5.43
MIN/MAX VAR: 0.04/1.63  STDDEV: 2.52

Istvan Szabo
Senior Infrastructure Engineer
---------------------------------------------------
Agoda Services Co., Ltd.
e: istvan.szabo@xxxxxxxxx
---------------------------------------------------

-----Original Message-----
From: Matt Vandermeulen <storage@xxxxxxxxxxxx>
Sent: Monday, May 31, 2021 9:43 PM
To: Szabo, Istvan (Agoda) <Istvan.Szabo@xxxxxxxxx>
Cc: ceph-users@xxxxxxx
Subject: [Suspicious newsletter]  Re: The always welcomed large omap

All the index data will be in OMAP, which you can see a listing of with

`ceph osd df tree`

Do you have large buckets (many, many objects in a single bucket) with few shards?  You may have to reshard one (or some) of your buckets.
It'll take some reading if you're using multisite, in order to coordinate it (though I'm unfamiliar with how it works with multisite in Octopus).

On 2021-05-31 02:25, Szabo, Istvan (Agoda) wrote:
> Hi,
>
> Any way to clean up large-omap in the index pool?
> PG deep_scrub didn't help.
> I know how to clean in the log pool, but no idea in the index pool :/
> It's an octopus deployment 15.2.10.
>
> Thank you
>
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