[LU-8962] lfs df prints nothing and exits with status 0 when given a non-lustre argument

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0
• Affects Version/s: Lustre 2.14.0
• Labels: easy
• Severity: 3
• Assignee: Arshad Hussain
• Reporter: John Hammond

Description

It also ignores everything after the first argument.

t:lustre-release# lfs df /tmp
t:lustre-release# echo $?
0
t:lustre-release# lfs df /mnt/lustre XXX
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID       141752       19528      112864  15% /mnt/lustre[MDT:0]
lustre-OST0000_UUID       366744       29892      317380   9% /mnt/lustre[OST:0]
lustre-OST0001_UUID       366744       29892      317352   9% /mnt/lustre[OST:1]

filesystem_summary:       733488       59784      634732   9% /mnt/lustre

t:lustre-release# echo $?
0
t:lustre-release# lfs df XXX /mnt/lustre
error: invalid path 'XXX': No such file or directory
t:lustre-release# echo $?
2

Comments

[Peter Jones]

Landed for 2.15

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/42126/
Subject: LU-8962 lfs: Handle non-lustre and multiple args
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 2d714041ba718853be700960b76769a8fb44cf51

[Gerrit Updater]

Arshad Hussain ([e-mail]) uploaded a new patch: https://review.whamcloud.com/42126
Subject: LU-8962 lfs: Handle non-lustre and multiple args
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: e76d535aa97d0e694080543f6e10d2820978353a

[Andreas Dilger]

It would also be useful to print a brief error message and non-zero return code if no argument is given and no Lustre filesystems are mounted on the node, like "lfs df: no Lustre filesystems found" and exit with "ENOENT = 2".

[Andreas Dilger]

"lfs df" should process all of the additional arguments (e.g. "lfs df /mnt/lustre /mnt/lustre2" should show status for both filesystems). If an error is hit during argument processing, the first such error should be saved and argument processing should continue, and the error returned at the end.