[LU-7437] "lctl list_param -R" can't list the parameters recursively

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.8.0
• Affects Version/s: Lustre 2.8.0
• Severity: 3
• Assignee: Emoly Liu
• Reporter: Emoly Liu

Description

When running "lctl list_param -R '*', it only shows /proc/{fs,sys}/{lustre,lnet}/ *, not recursively.

[root@centos6-1 utils]# ./lctl list_param -R '*'
devices
echo_client
error: list_param: /proc/fs/lustre/echo_client/*: Found no match
fld
error: list_param: /proc/fs/lustre/fld/*: Found no match
health_check
jobid_name
jobid_var
ldlm
error: list_param: /proc/fs/lustre/ldlm/*: Found no match
llite
error: list_param: /proc/fs/lustre/llite/*: Found no match
lmv
...

I will submit a patch later.

Issue Links

• is related to: LU-7796 "lctl set_param jobid_var" should return error about missing value
• is related to: LU-7802 set_param lru_size fails with 'error: set_param: setting /proc/fs/lustre/ldlm/namespaces/lustre-OST0000-osc-*/lru_size=clear: Invalid argument'
• is related to: LU-8064 Minor fix in param_display()
• is related to: LU-5030 "lctl {get,set}_param" should also check in /sys/fs/{lnet,lustre}