[LU-19414] "lctl get_param --dshbak" does not print actual parameter name.

• Type: Bug
• Resolution: Unresolved
• Priority: Medium
• Affects Version/s: Lustre 2.17.0
• Severity: 3
• Assignee: Fred Dilger
• Reporter: Andreas Dilger

Description

The "lctl get_param --dahbak" command will highlight if parameters report different results. However, it doesn't print the actual parameter name that is different, only "*" for the merged parameter names:

    lustre-head# lctl set_param osc.myth-OST0004-osc-ffff9a4dc70f5800.max_pages_per_rpc=256
    osc.myth-OST0004-osc-ffff9a4dc70f5800.max_pages_per_rpc=256
    lustre-head# lctl get_param -b osc.*.max_pages_per_rpc
    osc.myth-OST*-osc-ffff9a4dc70f5800.max_pages_per_rpc=1024
    osc.myth-OST*-osc-ffff9a4dc70f5800.max_pages_per_rpc=256
 

it should have printed the second line with the actual "OST0004" in the device name instead of "*" to make it clear which device is not like the others. Ideally, it would print the minority device(s) in red, rather than the second one, but I don't know how hard that is to implement.