[LU-13857] jobstats output can produce invalid yaml

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0
• Severity: 3
• Assignee: Feng Lei
• Reporter: Joe Grund

Description

When calling lctl get_param obdfilter.*OST*.job_stats there may be values that fill all left padded space. For example:

 

- job_id:          56796601
  snapshot_time:   1596652184
  read_bytes:      { samples:       62829, unit: bytes, min:    4096, max:16777216, sum:    141697982464 }
  write_bytes:     { samples:        2146, unit: bytes, min:     955, max: 1154584, sum:       320832894 }
  getattr:         { samples:           0, unit:  reqs }
  setattr:         { samples:           0, unit:  reqs }
  punch:           { samples:           1, unit:  reqs }
  sync:            { samples:           0, unit:  reqs }
  destroy:         { samples:           0, unit:  reqs }
  create:          { samples:           0, unit:  reqs }
  statfs:          { samples:           0, unit:  reqs }
  get_info:        { samples:           0, unit:  reqs }
  set_info:        { samples:           0, unit:  reqs }
  quotactl:        { samples:           0, unit:  reqs } 

The max value (max:16777216) has no space between the key and value and is now considered a scalar instead of a key value mapping.

Issue Links

• is related to: LU-15826 jobstats output can produce invalid yaml ( part 2 )