Bug #21243: incorrect erasure-code space in command ceph df - RADOS - Ceph

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Bug #21243

closed

incorrect erasure-code space in command ceph df

Added by Petr Malkov over 6 years ago. Updated over 6 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Category:

Correctness/Safety

Target version:

Ceph - v12.2.1

% Done:

Source:

Tags:

Backport:

luminous

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Component(RADOS):

Monitor

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

ceph osd erasure-code-profile set ISA plugin=isa k=2 m=2 crush-failure-domain=host crush-device-class=hdd

ceph osd dump | grep pool
        'default.rgw.buckets.data' replicated size 3 min_size 2
        'default.rgw.ISA.buckets.data' erasure size 4 min_size 3

ceph df
        default.rgw.buckets.data         6      27226M      0.06        42177G        7066
        default.rgw.ISA.buckets.data     7      34299M      0.08        42177G        8579

Incorrect ISA erasure-coded pool space. It should be less, but shows the same.
I also tried ISA plugin=isa k=2 m=1, still the same bug

Related issues 2 (0 open — 2 closed)

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Updated by Chang Liu over 6 years ago

Status changed from New to 12

➜  build git:(wip-mgr-df) ✗ ./bin/ceph df
*** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH ***
2017-09-05 20:59:12.105473 7f19730b4700 -1 WARNING: all dangerous and experimental features are enabled.
2017-09-05 20:59:12.112568 7f19730b4700 -1 WARNING: all dangerous and experimental features are enabled.
DEBUG(targets): 
('mon', '')
GLOBAL:
    SIZE     AVAIL     RAW USED     %RAW USED 
    413G      115G         298G         72.22 
POOLS:
    NAME                  ID     USED      %USED     MAX AVAIL     OBJECTS 
    cephfs_data_a         1          0         0          111G           0 
    cephfs_metadata_a     2      2.19K         0          111G          21 
    isa-ec-pool           3          0         0          111G           0

it could be reproduced in master branch.

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Updated by Chang Liu over 6 years ago

not only ISA plugin, It's common problem.

➜  build git:(wip-mgr-df) ✗ ceph osd erasure-code-profile set myprofile \
>    k=3 \
>    m=2 \
>    crush-failure-domain=osd
2017-09-05 21:01:09.564624 7f415a614700 -1 WARNING: all dangerous and experimental features are enabled.
2017-09-05 21:01:09.589226 7f415a614700 -1 WARNING: all dangerous and experimental features are enabled.
➜  build git:(wip-mgr-df) ✗ ceph osd pool create default2-ec-pool 12 12 erasure myprofile
2017-09-05 21:01:19.972730 7fe416634700 -1 WARNING: all dangerous and experimental features are enabled.
2017-09-05 21:01:20.005141 7fe416634700 -1 WARNING: all dangerous and experimental features are enabled.
pool 'default2-ec-pool' created
➜  build git:(wip-mgr-df) ✗ ./bin/ceph df                                                
*** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH ***
2017-09-05 21:01:23.993915 7ffbe9313700 -1 WARNING: all dangerous and experimental features are enabled.
2017-09-05 21:01:24.001296 7ffbe9313700 -1 WARNING: all dangerous and experimental features are enabled.

GLOBAL:
    SIZE     AVAIL     RAW USED     %RAW USED 
    413G      115G         298G         72.23 
POOLS:
    NAME                  ID     USED      %USED     MAX AVAIL     OBJECTS 
    cephfs_data_a         1          0         0          111G           0 
    cephfs_metadata_a     2      2.19K         0          111G          21 
    isa-ec-pool           3          0         0          111G           0 
    default-ec-pool       4          0         0          111G           0 
    default2-ec-pool      5          0         0          111G           0

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