[LU-16331] "lfs find -O UUID" does not match first OST after gap

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Affects Version/s: Lustre 2.16.0, Lustre 2.12.9
• Severity: 3
• Assignee: Andreas Dilger
• Reporter: Andreas Dilger

Description

Running "lfs find -O testfs-OST000a -type f /mnt/testfs" does not correctly find files with objects on OST000a if there is a gap in the OST numbering and this is the first OST number after the gap, but this works properly for finding files on this OST by index number:

# lfs df
UUID                   1K-blocks        Used   Available Use% Mounted on
testfs-MDT0000_UUID       125056        4924      108896   5% /mnt/testfs[MDT:0]
testfs-MDT0001_UUID       125056        7832      105988   7% /mnt/testfs[MDT:1]
testfs-MDT0002_UUID       125056        6700      107120   6% /mnt/testfs[MDT:2]
testfs-MDT0003_UUID       125056        6088      107732   6% /mnt/testfs[MDT:3]
testfs-OST0000_UUID       313104       12476      273468   5% /mnt/testfs[OST:0]
testfs-OST0001_UUID       313104        9636      276308   4% /mnt/testfs[OST:1]
testfs-OST0002_UUID       313104       11444      274500   5% /mnt/testfs[OST:2]
testfs-OST0003_UUID       313104       13156      272788   5% /mnt/testfs[OST:3]
testfs-OST000a_UUID       313104       15520      270424   6% /mnt/testfs[OST:10]
testfs-OST000b_UUID       313104        8972      276972   4% /mnt/testfs[OST:11]
testfs-OST000c_UUID       313104       11752      274192   5% /mnt/testfs[OST:12]
testfs-OST000d_UUID       313104       12500      273444   5% /mnt/testfs[OST:13]

filesystem_summary:      2504832       95456     2192096   5% /mnt/testfs
# lfs find /mnt/testfs -O testfs-OST000a_UUID
# lfs find /mnt/testfs -O 0xa
/mnt/testfs/etc/lvm/profile/thin-generic.profile
/mnt/testfs/etc/lvm/archive/centos_00001-283055415.vg
:

Issue Links

• is related to: LU-17037 Tests should run with high and sparse index numbers for OSTs and MDTs