[LU-10640] ha.sh improvement: add stat(2) check

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0

Epic/Theme

patch

• Assignee: Elena Gryaznova
• Reporter: Elena Gryaznova

Description

ha.sh script proposed improvement:
In each load iteration check for all created directories that ls' long format does not contain '?' which could happen when stat(2) called by ls fails.
The stat(2) failure may be caused by the missing objects as well as by number of other reasons.
If '?' is found sleep for several minutes and repeat the check.
Exit with error if '?' still exists after second check.