[LU-2376] Need a sanity check to ensure readable proc files are readable

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Affects Version/s: Lustre 2.4.0
• Assignee: Emoly Liu
• Reporter: John Hammond

Description

Lustre proc has gotten a little out of whack (see LU-2358, LU-2359, LU-2360, LU-2263). It seems worthwhile to add something like the following to sanity:

for dir in /proc/{fs/{lustre,ldiskfs},sys/{lustre,lnet}} ...; do
  if [ -d $dir ]; then
    find $dir -type f -readable -print -exec cat {} \; > /dev/null
  fi
done

It would be even better if the test failed when one of the reads returned an error. Of course before such a test can be landed the four issues listed above need to be addressed.