[LU-349] port bug21847 to master (obdfilter-survey: Syntax error in some locales)

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.1.0
• Affects Version/s: Lustre 2.1.0
• Severity: 3
• Bugzilla ID: 21,847
• Assignee: Hongchao Zhang
• Reporter: Hongchao Zhang

Description

the awk in obdfilter_survey will encounter some problems in some locals,
e.g. with LC_NUMERIC="de_DE" which uses a comma as the decimal separator, awk output will have the localized format,
input can be parsed in this and the standard C locale, but arithmetic operations only grok numbers in C locale.

1. locale | grep LC_NUMERIC
   LC_NUMERIC="de_DE@euro"
2. awk 'BEGIN {printf "%.1f\n", 1.0}

   '
   1,0

3. awk 'BEGIN {printf "%.1f\n", 1,0}

   '
   1,0

4. awk 'BEGIN {printf "%.1f\n", (1,0/1)}'
   awk: BEGIN {printf "%.1fn", (1,0/1)}

   awk: ^ syntax error