[LU-18359] Do not escape "..." around jobid_name

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.14.0
• Labels: easy
• Severity: 3
• Assignee: WC Triage
• Reporter: Andreas Dilger

Description

If the jobid name is specified with "..." around it already, the " characters are considered unprintable and hex-escaped, resulting in a double-eacaped jobid:

jobid_name="%H:%e:%u"
job_stats:
- job_id:          "\x22twoshoes:lfs:0\x22"

where "\x22" is the hex code for ".

If the jobid_name is sent to the server with "..." around it already, they should not be escaped and more quotes added.

If the jobid_name is set on the client with " around it, these could be stripped from the name so that there is more space to send useful information, and they will be added on the server again.

For compatibility, servers that receive a jobid with " around it should drop that when printing the job_stats. Checking and dropping it for every RPC that is processed adds overhead and does not increase the available size of the jobid itself.

Issue Links

• is related to: LU-18798 user.job xattr is storing quotes around job name
• is related to: LU-11407 Improve stats data
• is related to: LU-16555 print more YAML compatible special chars for jobid

Comments

[Andreas Dilger]

LU-18798 is tracking to remove the "" around the jobname in the xattr, while this ticket is avoiding to print the jobname with an extra layer of quotes.