[LU-16752] sanity test_413a FAIL: stripes shouldn't be evenly distributed

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Maloo

Description

This issue was created by maloo for Lai Siyao <[e-mail]>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/0a320069-0bd4-4888-8873-bda29738560c

test_413a failed with the following error:

stripes shouldn't be evenly distributed: 63 - 57 <= 6

Test session details:
clients: https://build.whamcloud.com/job/lustre-reviews/94114 - 4.18.0-425.10.1.el8_7.x86_64
servers: https://build.whamcloud.com/job/lustre-reviews/94114 - 4.18.0-425.10.1.el8_lustre.x86_64

Check for uneven MDTs: 
stripe_count=3 min_idx=0 max_idx=2

Check for uneven MDTs: 
0
using cmd fallocate -l 128K 
MDT filesfree available: 826614 833235 834265 834460
MDT blocks available: 472660 1039556 1043272 1036904
weight diff=122%
MDT filesfree available: 826614 833235 834265 834460
MDT blocks available: 472660 1039556 1043272 1036904
weight diff=122%

Mkdir (stripe_count 3) with balanced space usage:
CMD: onyx-37vm4,onyx-37vm5 /usr/sbin/lctl set_param lod.*.mdt_qos_threshold_rr=0
CMD: onyx-37vm4,onyx-37vm5 /usr/sbin/lctl set_param lod.*.mdt_qos_prio_free=100
CMD: onyx-37vm4,onyx-37vm5 /usr/sbin/lctl set_param lod.*.mdt_qos_maxage=1
20 directories created on MDT0 : curmax=20
25 directories created on MDT1 : curmax=25
19 directories created on MDT2 : curmax=25
16 directories created on MDT3 : curmax=25
57 stripes created on MDT0
60 stripes created on MDT1
60 stripes created on MDT2
63 stripes created on MDT3
 sanity test_413a: @@@@@@ FAIL: stripes shouldn't be evenly distributed: 63 - 57 <= 6 

VVVVVVV DO NOT REMOVE LINES BELOW, Added by Maloo for auto-association VVVVVVV
sanity test_413a - stripes shouldn't be evenly distributed: 63 - 57 <= 6

Issue Links

• is related to: LU-15062 sanity test_413c: FAIL: subdirs shouldn't be evenly distributed: 204 - 196 < 20